Todd E Katzner
My research interests focus on wildlife conservation ecology and the interaction between wildlife and the role of wildlife in natural systems.
Much of my work is built around utilization of novel technologies and approaches to wildlife ecology. I was part of a team that developed the first non-invasive monitoring scheme for any avian species, I was involved in development of novel high-frequency GPS-GSM telemetry systems for tracking migratory birds, and I developed a network of camera traps to monitor abundance and distribution of terrestrial avian scavengers across eastern North America. Much of my recent funding is focused on evaluating the potential impacts of renewable energy development on conservation-dependent birds.
Professional Experience
2014 - Present: USGS, Forest and Rangeland Ecosystem Science Center, Supervisory Research Wildlife Biologist, Boise, Idaho
Education and Certifications
Ph.D., Arizona State University, Tempe, AZ (2003)
M.S., University of Wyoming, Laramie, WY (1994)
B.A., Oberlin College, Oberlin, OH (1991)
Science and Products
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Lead (Pb) in Bald and Golden Eagles from 38 United States, USA, 2010-2018
We evaluated lead poisoning in bald and golden eagles during all seasons of the year and from states in each of the four major flyways throughout the continental USA.
Long-distance movements of non-migratory golden eagles in western North America, 2007-2017
We studied >500 golden eagles tracked by telemetry over a 10-year period in western North America, of which 160 engaged in non-routine, long-distance (> 300 km) movements. We identified spatial and temporal correlates of those movements at both small and large scales, and we quantified movement timing and direction. We further tested which age and sex classes of eagles were more likely...
Post-fire habitat associations of greater sage-grouse in Idaho and Oregon, 2016-2018
We investigated habitat selection by 28 male greater sage-grouse during each of three years (2016-2018) after a 113,000-ha wildfire in a sagebrush steppe ecosystem in Idaho and Oregon. During the study period, seeding and herbicide treatments were applied for habitat restoration. This dataset includes pre-fire land cover, post-fire vegetation, and post-fire treatment data within 500-m...
Data derived from GPS tracking of free-flying bald eagles (Haliaeetus leucocephalus), Iowa, USA
Comma-separated values (.csv) file containing data (and derived data) from GPS tracking of free-flying bald eagles (Haliaeetus leucocephalus), Iowa, USA. NOTE: Data file does not load properly in Microsoft Excel due to the size of data file (2,093,022 rows x 15 columns) that far exceeds Excel's maximum of 1,048,576 rows. Use other program(s) like R or Notepad to view the file.
Predictor, null model, response variable, and habitat suitability prediction rasters for a golden eagle hierarchical Bayesian synoptic model used for habitat selection in San Diego County, California. Derived from golden eagle data collected from November
This data release includes three types of data used in habitat modeling, and predictions from the habitat models. (1) Predictor rasters for proportion urban development within 1-km radius, proportion exurban within 1-km radius, vector ruggedness measure (VRM) within 500-m radius, topographic position index (TPI) within 500-m radius. (2) Twenty-nine null models for space use for 29...
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Filter Total Items: 151
Lead poisoning of raptors: State of the science and cross-discipline mitigation options for a global problem
Lead poisoning is an important global conservation problem for many species of wildlife, especially raptors. Despite the increasing number of individual studies and regional reviews of lead poisoning of raptors, it has been over a decade since this information has been compiled into a comprehensive global review. Here, we summarize the state of knowledge of lead poisoning of raptors, we...
Authors
Todd Eli Katzner, Deborah J. Pain, Michael McTee, Leland Brown, Sandra Cuadros, Mark A Pokras, Vince Slabe., Rick Watson, Guillermo Wiemeyer, Bryan E. Bedrosian, Jordan O Hampton, Chris N. Parish, James M. Pay, Keisuke Saito, John H. Schulz
Abundance of Long-billed Curlews on military lands in the Columbia Basin
Long-billed Curlews (Numenius americanus) are declining throughout North America, and the loss of grassland breeding habitat is one of the primary threats to the species. Intermountain West, in particular, has been identified as the most important region in North America for breeding curlews. Nevertheless, the density and abundance of Long-billed Curlews in this region is not well...
Authors
Sharon Poessel, Elise Elliott-Smith, Sean Murphy, Susan M. Haig, Adam E. Duerr, Todd Eli Katzner
Key breeding habitats of threatened golden eagles across Eastern Canada identified using a multi-level, multi-scale habitat selection approach
ContextIn a conservation context, identifying key habitats suitable for reproduction, foraging, or survival is a useful tool, yet challenging for species with large geographic distributions and/or living in remote regions.ObjectivesThe objective of this study is to identify selected habitats at multiple levels and scales of the threatened eastern North American population of golden...
Authors
Laurie D Maynard, Jerome Lemaître, Jean-Francois Therrien, Tricia Miller, Todd Eli Katzner, Scott G. Somershoe, Cooper. Jeff, Robert Sargent, Nicolas Lecomte
Tracking data highlight the importance of human-induced mortality for large migratory birds at a flyway scale
Human-induced direct mortality affects huge numbers of birds each year, threatening hundreds of species worldwide. Tracking technologies can be an important tool to investigate temporal and spatial patterns of bird mortality as well as their drivers. We compiled 1704 mortality records from tracking studies across the African-Eurasian flyway for 45 species, including raptors, storks, and...
Authors
Juan Serratosa, Steffen Oppel, Andrea Santangeli, Shay Rotics, Stuart H.M. Butchart, Luis S. Cano-Alonso, Jose Luis Telleria, Ryno Kemp, Aaron Nicholas, Aigars Kalvānsj, Aitor Galarza, Aldina M. A. Franco, Alessandro Andreotti, Alexander N.G. Kirschel, Alex Ngari, Alvaro Soutullo, Ana Bermejo-Bermejo, Andre J Botha, Andrea Ferri, Angelos Evangelidis, Anna Cenerini, Anton Stamenov, Antonio Hernández-Matías, Arianna Aradis, Atanas P Grozdanov, Beneharo Rodríguez, Çağan H. Şekercioğlu, Catuxa Cerecedo-Iglesias, Christina Kassara, Christos Barboutis, Claire Bracebridge, Clara García-Ripollés, Corinne J. Kendall, Damijan Denac, Dana G. Schabo, David S. Barber, Dimitar V Popov, Dobromir D Dobrev, Egidio Mallia, Elena Kmetova-Biro, Ernesto Álvarez, Evan R Buechly, Evgeny A. Bragin, Fabrizio Cordischi, Fadzai Zengeya, Flavio Monti, Francois Mougeot, Gareth Tate, Georgi Stoyanov, Giacomo Dell’Omo, Giuseppe Lucia, Gradimir Gradev, Guido Ceccolini, Guilad Friedemann, Hans-Gunther Bauer, Holger Kolberg, Hristo Peshev, Inês Catry, Ingar J. Øien, Isidoro Carbonell Alanís, Ivan Literák, Ivan Pokrovsky, Ivar Ojaste, Jan E. Østnes, Javier de la Puente, Joan Real, João L. Guilherme, Jose Raul Gonzalez, José M. Fernández-García, Juan Antonio Gil, Julien Terraube, Karel Poprach, Karen Aghababyan, Katharina Klein, Keith L. Bildstein, Kerri Wolter, Kjell Janssens, Kyle D. Kittelberger, Lindy J. Thompson, Mansoor H. AlJahdhami, Manuel Galán, Marcin Tobolka, Mario Posillico, Mario Cipollone, Marion Gschweng, Māris Strazds, Mark Boorman, Mark Zvidzai, Marta Acácio, Marta Romero, Martin Wikelski, Matthias Schmidt, Maurizio Sarà, Michael J. McGrady, Mindaugas Dagys, Monique L. Mackenzie, Muna Al Taq, Msafiri P. Mgumba, Munir Z. Virani, Nicolaos I. Kassinis, Nicolò Borgianni, Nikki Thie, Nikos Tsiopelas, Nili Anglister, Nina Farwig, Nir Sapir, Oddmund Kleven, Oliver Krone, Olivier Duriez, Orr Spiegel, Osama Al Nouri, Pascual López-López, Patrik Byholm, Pauline L. Kamath, Paweł Mirski, Peter Palatitz, Pietro Serroni, Rainer Raab, Ralph Buij, Ramunas Zydelis, Ran Nathan, Rauri C.K. Bowie, Rigas Tsiakiris, Richard Stratton Hatfield, Roi Harel, Rolf T. Kroglund, Ron Efrat, Ruben Limiñana, Shahid Javed, Saša P. Marinković, Sascha Rosner, Sasha Pekarsky, Shiv R. Kapila, Simeon A. Marin, Šimon Krejčí, Sinos Giokas, Siranush Tumanyan, Sondra Turjeman, Sonja C. Krüger, Steven R. Ewing, Stoycho Stoychev, Stoyan C. Nikolov, Tareq E. Qaneer, Theresa Spatz, Thomas G. Hadjikyriakou, Thomas Mueller, Todd Eli Katzner, Tomas Aarvak, Tomáš Veselovský, Torgeir Nygård, Ugo Mellone, Ülo Väli, Urmas Sellis, Vicente Urios, Vladimír Nemček, Volen Arkumarev, Wayne M. Getz, Wolfgang Fiedler, Willem Van den Bossche, Yael Lehnardt, Victoria R. Jones
Monthly variation in home range of a steppe-dwelling raptor
Birds in steppe landscapes change their behaviour over the annual cycle. We used GPS telemetry to track 12 steppe-dwelling adult Ferruginous Hawks (Buteo regalis) to understand how their home ranges varied across the year. Home range sizes of territorial adult hawks showed strong intra-annual variation, being smallest from April to June, and largest from July to October. Patterns in home...
Authors
Georgia H. Isted, Robert J. Thomas, Kevin S. Warner, Matthew J. Stuber, Ethan A. Ellsworth, Todd Eli Katzner
Dynamics of the nesting group of the steppe eagle in Aktobe region in 2018-2023
Kazakhstan is a key area for the conservation of the steppe eagle, which is classified as an endangered species by the IUCN. Systematic work on monitoring changes in its number and reproductive success is carried out in protected areas. The remaining steppe spaces are explored sporadically. Our work partially fills this gap. Over 5 years of monitoring the nesting group in the north of...
Authors
A.E Bragin, Todd Eli Katzner, E.A. Bragin
Non-USGS Publications**
Katzner, T.E., Miller, T.A., Rodrigue, J.L., Shaffer, S., 2015, A Most Dangerous Game- Death and Injury to Birds from Porcupine Quills: Wilson Journal of Ornithology, v. 127, no. 1, p. 102-108, https://doi.org/10.1676/14-066.1.
Behmke, S., Fallon, J.A., Duerr, A., Lehner, A., Buchweitz, J., Katzner, T.E., 2015, Chronic lead exposure is epidemic in obligate scavenger populations in eastern North America: Environment International, v. 79, p. 51-55, https://doi.org/10.1016/j.envint.2015.03.010.
Duerr, A.E., Miller, T.A., Lanzone, M.J., Brandes, D., Cooper, J., O'Malley, K., Maisonnueve, C., Tremblay, J., Katzner, T.E., 2015, Flight response of slope-soaring birds to seasonal variation in thermal generation: Functional Ecology, v. 29, no. 6, p. 779-790, https://doi.org/10.1111/1365-2435.12381.
Dennhardt, A.J., Duerr, A.E., Brandes, D., Katzner, T.E., 2015, Integrating citizen-science data with movement models to estimate the size of a migratory golden eagle population: Biological Conservation, v. 184, p. 68-78, https://doi.org/10.1016/j.biocon.2015.01.003.
Morneau, F., Tremblay, J., Todd, C., Chubbs, T.E., Maisonnueve, C., Lemaıˆtre, J., Katzner, T.E., 2015, Known Breeding Distribution and Abundance of Golden Eagles in Eastern North America: Northeastern Naturalist, v. 22, no. 2, p. 236-247, https://doi.org/10.1656/045.022.0201.
Miller, T.A., Brooks, R.P., Lanzone, M.J., Brandes, D., Cooper, J., Tremblay, J., Wilhelm, J., Duerr, A.E., Katzner, T.E., 2015, Limitations and mechanisms influencing the migratory performance of soaring birds: Ibis, v. 158, no. 1, p. 116-134, https://doi.org/10.1111/ibi.12331.
Dennhardt, A.J., Duerr, A.E., Brandes, D., Katzner, T.E., 2015, Modeling autumn migration of a rare soaring raptor identifies new movement corridors in central Appalachia: Ecological Modelling, v. 303, p. 19-29, https://doi.org/10.1016/j.ecolmodel.2015.02.010.
Katzner, T.E., Turk, P., Duerr, A.E., Miller, T.A., Lanzone, M.J., Cooper, J., Brandes, D., Tremblay, J., Lemaıˆtre, J., 2015, Use of multiple modes of flight subsidy by a soaring terrestrial bird, the golden eagle Aquila chrysaetos, when on migration: Journal of the Royal Society Interface, v. 12, no. 112, p. 20150530, https://doi.org/10.1098/rsif.2015.0530.
Pettorelli, N., Evans, D.M., Garner, T.W., Katzner, T.E., Gompper, M.E., Altwegg, R., Branch, T.A., Johnson, J.A., Pollock, K., DaVolls, L., Rantanen, E., Gordon, I.J., 2013, Addressing gender imbalances in Animal Conservation: Animal Conservation, v. 16, p. 131-133, https://doi.org/10.1111/acv.12032.
Katzner, T.E., Collar, N.J., 2013, Are insular populations of the Philippine falconet (Microhierax erythrogenys) steps in a cline?: The Condor, v. 115, no. 3, p. 576-583, https://doi.org/10.1525/cond.2013.120070.
Latta, S.C., Musher, L.J., Latta, K.N., Katzner, T.E., 2013, Influence of human population size and the built environment on avian assemblages in urban green spaces: Urban Ecosystems, v. 16, no. 3, p. 463-479, https://doi.org/10.1007/s11252-012-0282-z.
Sklyarenko, S.L., Katzner, T.E., 2012, The Status of Populations of Vultures in Kazakhstan In Kovshar, A.F., Rustamov, E.A., Mitropolsky, O.V., Levin, A.S., Kovshar, V.A., eds., Ornithological News of Kazakhstan and Middle Asia: ISBN 978-601-7287-05-4, Almaty, Kazakhstan, Menzbier’s Ornithological Society, p. 178-185.
Katzner, T.E., Winton, J.D., McMorris, F.A., Brauning, D., 2012, Dispersal, Band Encounters, and Causes of Death in a Reintroduced and Rapidly Growing Population of Peregrine Falcons: Journal of Raptor Research, v. 46, no. 1, p. 75-83, https://doi.org/10.3356/JRR-10-93.1.
Al Hasani, I.K., Azar, J.F., Nishimura, K., Amr, Z.S., Katzner, T.E., 2012, Distribution, diet and winter ecology of the Imperial Eagle Aquila heliaca in Jordan.: Vertebrate Zoology, v. 62, no. 2, p. 273-280.
Borher, G., Brandes, D., Mandel, J., Bildstein, K.L., Miller, T., Lanzone, M., Katzner, T.E., Maissoneuve, C., Tremblay, J., 2012, Estimating updraft velocity components over large spatial scales- Contrasting migration strategies of golden eagles and turkey vultures: Ecology Letters, v. 15, no. 2, p. 96-103, https://doi.org/10.1111/j.1461-0248.2011.01713.x.
Branch, T.A., Austin, J.D., Pollock, K., Gordon, I.J., Gompper, M.E., Katzner, T.E., Pettorelli, N., 2012, Fisheries conservation and management- finding consensus in the midst of competing paradigms: Animal Conservation, v. 15, no. 1, p. 1-3, https://doi.org/10.1111/j.1469-1795.2011.00502.x.
Lanzone, M., Miller, T., Turk, P., Brandes, D., Halverson, C., Maissoneuve, C., Tremblay, J., Cooper, J., O'Malley, K., Brooks, R., Katzner, T.E., 2012, Flight responses by a migratory soaring raptor to changing meteorological conditions: Biology Letters, v. 8, no. 5, p. 710-713, https://doi.org/10.1098/rsbl.2012.0359.
Evans, D.M., Barnard, P., Koh, L.P., Chapman, C.A., Altwegg, R., Garner, T.W., Gompper, M.E., Gordon, I.J., Katzner, T.E., Pettorelli, N., 2012, Funding nature conservation- who pays?: Animal Conservation, v. 15, no. 3, p. 215-216, https://doi.org/10.1111/j.1469-1795.2012.00550.x.
Bragin, E., Katzner, T.E., 2012, Second nest record of Smew Mergus albellus in the Naurzum forest: Russian Ornithological Society: Express Issue, v. 21, no. 743, p. 724-725.
Katzner, T.E., Smith, B.W., Miller, T.A., Brandes, D., Cooper, J., Lanzone, M., Brauning, D., Farmer, C., Harding, S., Kramer, D., Koppie, C., Maissoneuve, C., Martell, M., Mojica, E.K., Todd, C., Tremblay, J., Wheeler, M., Brinker, D.F., Chubbs, T.E., O'Malley, K., Mehus, S., Porter, B., Brooks, R.P., Watts, B.D., Bildstein, K.L., 2012, Status, biology and conservation priorities for North America’s eastern Golden Eagle (Aquila chrysaetos) population: Auk, v. 29, no. 1, p. 168-176, https://doi.org/10.1525/auk.2011.11078.
Bragin, E., Katzner, T.E., Bragin, E., 2012, Summer accumulation of large birds of prey , and the problem of estimating their number - Proceedings Menzbirovskogo Ornithological Society: Volume I: Proceedings of XIII International Ornithological Conference of Northern Eurasia, p. 234-240.
Duerr, A., Miller, T., Lanzone, M., Brandes, D., Cooper, J., O'Malley, K., Maissoneuve, C., Tremblay, J., Katzner, T.E., 2012, Testing an emerging paradigm in migration ecology shows surprising differences in efficiency between flight modes: PLOS ONE, v. 7, no. 4, p. e35548, https://doi.org/10.1371/journal.pone.0035548.
Katzner, T.E., Wheeler, M., Negro, J.J., Kapetanakos, Y., DeWoody, J.A., Horvath, M., Lovette, I., 2012, To pluck or not to pluck- scientific methodologies should be carefully chosen, not “one size fits all": Journal of Avian Biology, v. 43, p. 15-17, https://doi.org/10.1111/j.1600-048X.2011.05592.x.
Katzner, T.E., Brandes, D., Miller, T., Lanzone, M., Maissoneuve, C., Tremblay, J., Mulvihill, R., Merovich, G., 2012, Topography drives migratory flight altitude of golden eagles- implications for on-shore wind energy development: Journal of Applied Ecology, v. 49, no. 5, p. 1178-1186, https://doi.org/10.1111/j.1365-2664.2012.02185.x.
Gordon, I.J., Pollock, K., Altwegg, R., Garner, T.W., Gompper, M.E., Katzner, T.E., Pettorelli, N., Redpath, S., 2012, What the ‘food security’ agenda means for animal conservation in terrestrial ecosystems: Animal Conservation, v. 15, no. 2, p. 115-116, https://doi.org/10.1111/j.1469-1795.2012.00541.x.
Katzner, T.E., Ivy, J.R., Bragin, E., Milner-Gulland, E.J., DeWoody, J.A., 2011, Conservation implications of inaccurate estimation of cryptic population size: Animal Conservation, v. 14, no. 4, p. 328-332, https://doi.org/10.1111/j.1469-1795.2011.00444.x.
Iverson, S.A., Gavrilov, A., Katzner, T.E., Takekawa, J., Newman, S., Miller, T., Hagemeijer, W., Sivananinthaperumal, B., Mundkur, T., DeMattos, C., Ahmed, L.S., 2011, Migratory movements of waterfowl in Central Asia and avian influenza emergence- sporadic transmission of H5N1 from east to west: Ibis, v. 153, no. 2, p. 279-292, https://doi.org/10.1111/j.1474-919X.2010.01095.x.
Jones, J.P., Collen, B., Baxter, P.W., Bubb, P., Illian, J., Katzner, T.E., Keane, A., Loh, J., McDonald-Madden, E., Nicholson, E., Pereira, H., Possingham, H., Pullin, A., Rodrigues, A., Ruiz-Gutierrez, V., Sommerville, M., Milner-Gulland, E.J., 2011, The Why, What, and How of Global Biodiversity Indicators Beyond the 2010 Target: Conservation Biology, v. 25, no. 3, p. 450-457, https://doi.org/10.1111/j.1523-1739.2010.01605.x.
Terraube, J., Arroyo, B.E., Mougeot, F., Katzner, T.E., Bragin, E., 2010, Breeding biology of the Montagu’s harrier (Circus pygargus) in north-central Kazakhstan: Journal of Ornithology, v. 151, no. 3, p. 713-722, https://doi.org/10.1007/s10336-010-0505-0.
Rudnick, J.A., Katzner, T.E., DeWoody, J.A., 2009, Genetic Analyses of Noninvasively Collected Feathers Can Provide Insights into Avian Demography and Behavior In Aronoff, J.B., ed., Handbook of Nature Conservation: Hauppauge, NY, Nova Science Publishers, p. 181-197.
Miller, T.M., Brandes, D., Lanzone, M., Ombalski, D., Maisonnueve, C., Katzner, T.E., 2009, Golden eagle migration and winter behavior in Pennsylvania In Majumdar, S.K., ed., Avian Ecology and Conservation: A Pennsylvania Focus with National Implications: Immaculata, PA, Pennsylvania Academy of Sciences, p. 111-125.
Brandes, D., Miller, T.M., Katzner, T.E., 2009, Wind Power Mortality In Majumdar, S.K., ed., Avian Ecology and Conservation: A Pennsylvania Focus with National Implications: Immaculata, PA, Pennsylvania Academy of Sciences, p. 300-303.
Rudnick, J.A., Katzner, T.E., Bragin, E.A., DeWoody, J.A., 2008, A non-invasive genetic evaluation of population size, natal philopatry, and roosting behavior of non-breeding eastern imperial eagles (Aquila heliaca) in central Asia: Conservation Genetics, v. 9, p. 667-676.
Poulakakis, N., Antoniou, A., Mantziou, G., Parmakelis, A., Skartsi, T., Vasilakis, D., Elorriaga, J., De La Puente, J., Gavashelishvili, A., Ghasabyan, M., Katzner, T.E., McGrady, M.J., Batbayar, N., Fuller, M.R., Natsagdorj, T., 2008, Population structure, diversity, and phylogeography in the near-threatened Eurasian black vultures Aegypius monachus (Falconiformes; Accipitridae) in Europe- insights from microsatellite and mitochondrial DNA variation: Biological Journal of the Linnean Society, v. 95, p. 859-872.
Kenward, R., Katzner, T.E., Wink, M., Marcström, V., Walls, S., Karlbom, M., Pfeffer, R., Bragin, E.A., Hodder, K., Levin, A.S., 2007, Rapid sustainability modelling for raptors by radio tagging and DNA fingerprinting: Journal of Wildlife Management, v. 71, no. 1, p. 238-245.
Ryabtsev, V.V., Katzner, T.E., 2007, Severe declines of Eastern Imperial Eagle Aquila heliaca populations in the Baikal region, Russia- a modern and historical perspective: Bird Conservation International, v. 17, no. 03, p. 197-209.
Rudnick, J.A., Katzner, T.E., Bragin, E.A., DeWoody, J.A., 2007, Species identification of birds through genetic analysis of naturally shed feathers: Molecular Ecology Notes, p. 757-762.
Katzner, T.E., Milner-Gulland, E.J., Bragin, E.A., 2007, Using modeling to improve monitoring of structured populations- are we collecting the right data?: Conservation Biology, v. 21, no. 1, p. 241-252.
Katzner, T.E., Bragin, E.A., Milner-Gulland, E.J., 2006, Modelling populations of long lived birds of prey for conservation- a study of Imperial Eagles (Aquila heliaca) in Kazakhstan: Biological Conservation, v. 132, no. 3, p. 322-335.
Katzner, T.E., 2005, Corruption - a double-edged sword for conservation? A response to Smith and Walpole.: Oryx, v. 39, no. 3, p. 260-262.
Katzner, T.E., Robertson, S., Robertson, B., Klucsarits, J., McCarty, K.M., Bildstein, K.L., 2005, Results from a long-term nest-box program for American Kestrels- implications for improved population monitoring and conservation: Journal of Field Ornithology, v. 76, no. 3, p. 217-318.
Busch, J., Katzner, T.E., Bragin, E.A., Keim, P., 2005, Tetranucleotide microsatellites for aquila and haliaeetus eagles: Molecular Ecology Notes, v. 5, no. 1, p. 39-41.
Rudnick, J.A., Katzner, T.E., Bragin, E.A., Rhodes, O.E., DeWoody, J.A., 2005, Using naturally shed feathers for individual identification, genetic parentage analyses, and population monitoring in an endangered Eastern imperial eagle (Aquila heliaca) population from Kazakhstan: Molecular Ecology, v. 14, no. 10, p. 2959-2967.
Katzner, T.E., Hsun Lai, C., Gardiner, J.D., Foggin, J.M., Pearson, D., Smith, A.T., 2004, Adjacent nesting by Lammergeier Gypaetus barbatus and Himalayan Griffon Gyps himalayensis on the Tibetan Plateau, China: Forktail, v. 20, p. 94-96.
Leppert, L.L., Layman, S., Bragin, E.A., Katzner, T.E., 2004, Survey for Hemoparasites in Imperial Eagles (Aquila heliaca), Steppe Eagles (Aquila nipalensis), and White-tailed Sea Eagles (Haliaeetus albicilla) from Kazakhstan: Journal of Wildlife Diseases, v. 40, no. 2, p. 316-319.
Sharik, T.L., Katzner, T.E., Bragina, T.M., 2003, A new species of Copidosoma Ratzeburg (Hymenoptera- Encyrtidae) from eagle nests in Kazakhstan: Journal of Hymenoptera Research, v. 12, no. 2, p. 308-311.
Pain, D.J., Cunningham, P.G., Donald, P.F., Duckworth, J.W., Houston, D.C., Katzner, T.E., Parry-Jones, J., Poole, C., Prakash, V., Round, P., Timmins, R., 2003, Causes and impacts of temporospatial declines of Gypsvultures in Asia: Conservation Biology, v. 17, no. 3, p. 661-671.
Katzner, T.E., Parker, K.L., 1998, Long distance movements from established burrow sites by pygmy rabbits (Brachylagus idahoensis) in southwestern Wyoming: Northwest Naturalist, v. 79, no. 2, p. 72-74.
Katzner, T.E., Cruz, Y.P., 1998, Survival of the Polyembryonic Parasitoid Copidosomopsis tanytmema (Hymenoptera- Encyrtidae) in Envenomized Larvae of its Host Anagasta kuehniella (Lepidoptera- Pyralidae): Annals of the Entomological Society of America, v. 91, no. 6, p. 808-812.
Katzner, T.E., Parker, K.L., Hardegree, S.P., 1997, Metabolism and Thermal Response in Winter-Acclimatized Pygmy Rabbits (Brachylagus idahoensis): Journal of Mammalogy, v. 78, no. 4, p. 1053-1062.
Katzner, T.E., Parker, K.L., 1997, Vegetative Characteristics and Size of Home Ranges Used by Pygmy Rabbits (Brachylagus idahoensis) during Winter: Journal of Mammalogy, v. 78, no. 4, p. 1063-1072.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
To request an interview, contact fresc_outreach@usgs.gov or call (541) 750-1030.
Filter Total Items: 57
Science and Products
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Lead (Pb) in Bald and Golden Eagles from 38 United States, USA, 2010-2018
We evaluated lead poisoning in bald and golden eagles during all seasons of the year and from states in each of the four major flyways throughout the continental USA.
Long-distance movements of non-migratory golden eagles in western North America, 2007-2017
We studied >500 golden eagles tracked by telemetry over a 10-year period in western North America, of which 160 engaged in non-routine, long-distance (> 300 km) movements. We identified spatial and temporal correlates of those movements at both small and large scales, and we quantified movement timing and direction. We further tested which age and sex classes of eagles were more likely...
Post-fire habitat associations of greater sage-grouse in Idaho and Oregon, 2016-2018
We investigated habitat selection by 28 male greater sage-grouse during each of three years (2016-2018) after a 113,000-ha wildfire in a sagebrush steppe ecosystem in Idaho and Oregon. During the study period, seeding and herbicide treatments were applied for habitat restoration. This dataset includes pre-fire land cover, post-fire vegetation, and post-fire treatment data within 500-m...
Data derived from GPS tracking of free-flying bald eagles (Haliaeetus leucocephalus), Iowa, USA
Comma-separated values (.csv) file containing data (and derived data) from GPS tracking of free-flying bald eagles (Haliaeetus leucocephalus), Iowa, USA. NOTE: Data file does not load properly in Microsoft Excel due to the size of data file (2,093,022 rows x 15 columns) that far exceeds Excel's maximum of 1,048,576 rows. Use other program(s) like R or Notepad to view the file.
Predictor, null model, response variable, and habitat suitability prediction rasters for a golden eagle hierarchical Bayesian synoptic model used for habitat selection in San Diego County, California. Derived from golden eagle data collected from November
This data release includes three types of data used in habitat modeling, and predictions from the habitat models. (1) Predictor rasters for proportion urban development within 1-km radius, proportion exurban within 1-km radius, vector ruggedness measure (VRM) within 500-m radius, topographic position index (TPI) within 500-m radius. (2) Twenty-nine null models for space use for 29...
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Filter Total Items: 151
Lead poisoning of raptors: State of the science and cross-discipline mitigation options for a global problem
Lead poisoning is an important global conservation problem for many species of wildlife, especially raptors. Despite the increasing number of individual studies and regional reviews of lead poisoning of raptors, it has been over a decade since this information has been compiled into a comprehensive global review. Here, we summarize the state of knowledge of lead poisoning of raptors, we...
Authors
Todd Eli Katzner, Deborah J. Pain, Michael McTee, Leland Brown, Sandra Cuadros, Mark A Pokras, Vince Slabe., Rick Watson, Guillermo Wiemeyer, Bryan E. Bedrosian, Jordan O Hampton, Chris N. Parish, James M. Pay, Keisuke Saito, John H. Schulz
Abundance of Long-billed Curlews on military lands in the Columbia Basin
Long-billed Curlews (Numenius americanus) are declining throughout North America, and the loss of grassland breeding habitat is one of the primary threats to the species. Intermountain West, in particular, has been identified as the most important region in North America for breeding curlews. Nevertheless, the density and abundance of Long-billed Curlews in this region is not well...
Authors
Sharon Poessel, Elise Elliott-Smith, Sean Murphy, Susan M. Haig, Adam E. Duerr, Todd Eli Katzner
Key breeding habitats of threatened golden eagles across Eastern Canada identified using a multi-level, multi-scale habitat selection approach
ContextIn a conservation context, identifying key habitats suitable for reproduction, foraging, or survival is a useful tool, yet challenging for species with large geographic distributions and/or living in remote regions.ObjectivesThe objective of this study is to identify selected habitats at multiple levels and scales of the threatened eastern North American population of golden...
Authors
Laurie D Maynard, Jerome Lemaître, Jean-Francois Therrien, Tricia Miller, Todd Eli Katzner, Scott G. Somershoe, Cooper. Jeff, Robert Sargent, Nicolas Lecomte
Tracking data highlight the importance of human-induced mortality for large migratory birds at a flyway scale
Human-induced direct mortality affects huge numbers of birds each year, threatening hundreds of species worldwide. Tracking technologies can be an important tool to investigate temporal and spatial patterns of bird mortality as well as their drivers. We compiled 1704 mortality records from tracking studies across the African-Eurasian flyway for 45 species, including raptors, storks, and...
Authors
Juan Serratosa, Steffen Oppel, Andrea Santangeli, Shay Rotics, Stuart H.M. Butchart, Luis S. Cano-Alonso, Jose Luis Telleria, Ryno Kemp, Aaron Nicholas, Aigars Kalvānsj, Aitor Galarza, Aldina M. A. Franco, Alessandro Andreotti, Alexander N.G. Kirschel, Alex Ngari, Alvaro Soutullo, Ana Bermejo-Bermejo, Andre J Botha, Andrea Ferri, Angelos Evangelidis, Anna Cenerini, Anton Stamenov, Antonio Hernández-Matías, Arianna Aradis, Atanas P Grozdanov, Beneharo Rodríguez, Çağan H. Şekercioğlu, Catuxa Cerecedo-Iglesias, Christina Kassara, Christos Barboutis, Claire Bracebridge, Clara García-Ripollés, Corinne J. Kendall, Damijan Denac, Dana G. Schabo, David S. Barber, Dimitar V Popov, Dobromir D Dobrev, Egidio Mallia, Elena Kmetova-Biro, Ernesto Álvarez, Evan R Buechly, Evgeny A. Bragin, Fabrizio Cordischi, Fadzai Zengeya, Flavio Monti, Francois Mougeot, Gareth Tate, Georgi Stoyanov, Giacomo Dell’Omo, Giuseppe Lucia, Gradimir Gradev, Guido Ceccolini, Guilad Friedemann, Hans-Gunther Bauer, Holger Kolberg, Hristo Peshev, Inês Catry, Ingar J. Øien, Isidoro Carbonell Alanís, Ivan Literák, Ivan Pokrovsky, Ivar Ojaste, Jan E. Østnes, Javier de la Puente, Joan Real, João L. Guilherme, Jose Raul Gonzalez, José M. Fernández-García, Juan Antonio Gil, Julien Terraube, Karel Poprach, Karen Aghababyan, Katharina Klein, Keith L. Bildstein, Kerri Wolter, Kjell Janssens, Kyle D. Kittelberger, Lindy J. Thompson, Mansoor H. AlJahdhami, Manuel Galán, Marcin Tobolka, Mario Posillico, Mario Cipollone, Marion Gschweng, Māris Strazds, Mark Boorman, Mark Zvidzai, Marta Acácio, Marta Romero, Martin Wikelski, Matthias Schmidt, Maurizio Sarà, Michael J. McGrady, Mindaugas Dagys, Monique L. Mackenzie, Muna Al Taq, Msafiri P. Mgumba, Munir Z. Virani, Nicolaos I. Kassinis, Nicolò Borgianni, Nikki Thie, Nikos Tsiopelas, Nili Anglister, Nina Farwig, Nir Sapir, Oddmund Kleven, Oliver Krone, Olivier Duriez, Orr Spiegel, Osama Al Nouri, Pascual López-López, Patrik Byholm, Pauline L. Kamath, Paweł Mirski, Peter Palatitz, Pietro Serroni, Rainer Raab, Ralph Buij, Ramunas Zydelis, Ran Nathan, Rauri C.K. Bowie, Rigas Tsiakiris, Richard Stratton Hatfield, Roi Harel, Rolf T. Kroglund, Ron Efrat, Ruben Limiñana, Shahid Javed, Saša P. Marinković, Sascha Rosner, Sasha Pekarsky, Shiv R. Kapila, Simeon A. Marin, Šimon Krejčí, Sinos Giokas, Siranush Tumanyan, Sondra Turjeman, Sonja C. Krüger, Steven R. Ewing, Stoycho Stoychev, Stoyan C. Nikolov, Tareq E. Qaneer, Theresa Spatz, Thomas G. Hadjikyriakou, Thomas Mueller, Todd Eli Katzner, Tomas Aarvak, Tomáš Veselovský, Torgeir Nygård, Ugo Mellone, Ülo Väli, Urmas Sellis, Vicente Urios, Vladimír Nemček, Volen Arkumarev, Wayne M. Getz, Wolfgang Fiedler, Willem Van den Bossche, Yael Lehnardt, Victoria R. Jones
Monthly variation in home range of a steppe-dwelling raptor
Birds in steppe landscapes change their behaviour over the annual cycle. We used GPS telemetry to track 12 steppe-dwelling adult Ferruginous Hawks (Buteo regalis) to understand how their home ranges varied across the year. Home range sizes of territorial adult hawks showed strong intra-annual variation, being smallest from April to June, and largest from July to October. Patterns in home...
Authors
Georgia H. Isted, Robert J. Thomas, Kevin S. Warner, Matthew J. Stuber, Ethan A. Ellsworth, Todd Eli Katzner
Dynamics of the nesting group of the steppe eagle in Aktobe region in 2018-2023
Kazakhstan is a key area for the conservation of the steppe eagle, which is classified as an endangered species by the IUCN. Systematic work on monitoring changes in its number and reproductive success is carried out in protected areas. The remaining steppe spaces are explored sporadically. Our work partially fills this gap. Over 5 years of monitoring the nesting group in the north of...
Authors
A.E Bragin, Todd Eli Katzner, E.A. Bragin
Non-USGS Publications**
Katzner, T.E., Miller, T.A., Rodrigue, J.L., Shaffer, S., 2015, A Most Dangerous Game- Death and Injury to Birds from Porcupine Quills: Wilson Journal of Ornithology, v. 127, no. 1, p. 102-108, https://doi.org/10.1676/14-066.1.
Behmke, S., Fallon, J.A., Duerr, A., Lehner, A., Buchweitz, J., Katzner, T.E., 2015, Chronic lead exposure is epidemic in obligate scavenger populations in eastern North America: Environment International, v. 79, p. 51-55, https://doi.org/10.1016/j.envint.2015.03.010.
Duerr, A.E., Miller, T.A., Lanzone, M.J., Brandes, D., Cooper, J., O'Malley, K., Maisonnueve, C., Tremblay, J., Katzner, T.E., 2015, Flight response of slope-soaring birds to seasonal variation in thermal generation: Functional Ecology, v. 29, no. 6, p. 779-790, https://doi.org/10.1111/1365-2435.12381.
Dennhardt, A.J., Duerr, A.E., Brandes, D., Katzner, T.E., 2015, Integrating citizen-science data with movement models to estimate the size of a migratory golden eagle population: Biological Conservation, v. 184, p. 68-78, https://doi.org/10.1016/j.biocon.2015.01.003.
Morneau, F., Tremblay, J., Todd, C., Chubbs, T.E., Maisonnueve, C., Lemaıˆtre, J., Katzner, T.E., 2015, Known Breeding Distribution and Abundance of Golden Eagles in Eastern North America: Northeastern Naturalist, v. 22, no. 2, p. 236-247, https://doi.org/10.1656/045.022.0201.
Miller, T.A., Brooks, R.P., Lanzone, M.J., Brandes, D., Cooper, J., Tremblay, J., Wilhelm, J., Duerr, A.E., Katzner, T.E., 2015, Limitations and mechanisms influencing the migratory performance of soaring birds: Ibis, v. 158, no. 1, p. 116-134, https://doi.org/10.1111/ibi.12331.
Dennhardt, A.J., Duerr, A.E., Brandes, D., Katzner, T.E., 2015, Modeling autumn migration of a rare soaring raptor identifies new movement corridors in central Appalachia: Ecological Modelling, v. 303, p. 19-29, https://doi.org/10.1016/j.ecolmodel.2015.02.010.
Katzner, T.E., Turk, P., Duerr, A.E., Miller, T.A., Lanzone, M.J., Cooper, J., Brandes, D., Tremblay, J., Lemaıˆtre, J., 2015, Use of multiple modes of flight subsidy by a soaring terrestrial bird, the golden eagle Aquila chrysaetos, when on migration: Journal of the Royal Society Interface, v. 12, no. 112, p. 20150530, https://doi.org/10.1098/rsif.2015.0530.
Pettorelli, N., Evans, D.M., Garner, T.W., Katzner, T.E., Gompper, M.E., Altwegg, R., Branch, T.A., Johnson, J.A., Pollock, K., DaVolls, L., Rantanen, E., Gordon, I.J., 2013, Addressing gender imbalances in Animal Conservation: Animal Conservation, v. 16, p. 131-133, https://doi.org/10.1111/acv.12032.
Katzner, T.E., Collar, N.J., 2013, Are insular populations of the Philippine falconet (Microhierax erythrogenys) steps in a cline?: The Condor, v. 115, no. 3, p. 576-583, https://doi.org/10.1525/cond.2013.120070.
Latta, S.C., Musher, L.J., Latta, K.N., Katzner, T.E., 2013, Influence of human population size and the built environment on avian assemblages in urban green spaces: Urban Ecosystems, v. 16, no. 3, p. 463-479, https://doi.org/10.1007/s11252-012-0282-z.
Sklyarenko, S.L., Katzner, T.E., 2012, The Status of Populations of Vultures in Kazakhstan In Kovshar, A.F., Rustamov, E.A., Mitropolsky, O.V., Levin, A.S., Kovshar, V.A., eds., Ornithological News of Kazakhstan and Middle Asia: ISBN 978-601-7287-05-4, Almaty, Kazakhstan, Menzbier’s Ornithological Society, p. 178-185.
Katzner, T.E., Winton, J.D., McMorris, F.A., Brauning, D., 2012, Dispersal, Band Encounters, and Causes of Death in a Reintroduced and Rapidly Growing Population of Peregrine Falcons: Journal of Raptor Research, v. 46, no. 1, p. 75-83, https://doi.org/10.3356/JRR-10-93.1.
Al Hasani, I.K., Azar, J.F., Nishimura, K., Amr, Z.S., Katzner, T.E., 2012, Distribution, diet and winter ecology of the Imperial Eagle Aquila heliaca in Jordan.: Vertebrate Zoology, v. 62, no. 2, p. 273-280.
Borher, G., Brandes, D., Mandel, J., Bildstein, K.L., Miller, T., Lanzone, M., Katzner, T.E., Maissoneuve, C., Tremblay, J., 2012, Estimating updraft velocity components over large spatial scales- Contrasting migration strategies of golden eagles and turkey vultures: Ecology Letters, v. 15, no. 2, p. 96-103, https://doi.org/10.1111/j.1461-0248.2011.01713.x.
Branch, T.A., Austin, J.D., Pollock, K., Gordon, I.J., Gompper, M.E., Katzner, T.E., Pettorelli, N., 2012, Fisheries conservation and management- finding consensus in the midst of competing paradigms: Animal Conservation, v. 15, no. 1, p. 1-3, https://doi.org/10.1111/j.1469-1795.2011.00502.x.
Lanzone, M., Miller, T., Turk, P., Brandes, D., Halverson, C., Maissoneuve, C., Tremblay, J., Cooper, J., O'Malley, K., Brooks, R., Katzner, T.E., 2012, Flight responses by a migratory soaring raptor to changing meteorological conditions: Biology Letters, v. 8, no. 5, p. 710-713, https://doi.org/10.1098/rsbl.2012.0359.
Evans, D.M., Barnard, P., Koh, L.P., Chapman, C.A., Altwegg, R., Garner, T.W., Gompper, M.E., Gordon, I.J., Katzner, T.E., Pettorelli, N., 2012, Funding nature conservation- who pays?: Animal Conservation, v. 15, no. 3, p. 215-216, https://doi.org/10.1111/j.1469-1795.2012.00550.x.
Bragin, E., Katzner, T.E., 2012, Second nest record of Smew Mergus albellus in the Naurzum forest: Russian Ornithological Society: Express Issue, v. 21, no. 743, p. 724-725.
Katzner, T.E., Smith, B.W., Miller, T.A., Brandes, D., Cooper, J., Lanzone, M., Brauning, D., Farmer, C., Harding, S., Kramer, D., Koppie, C., Maissoneuve, C., Martell, M., Mojica, E.K., Todd, C., Tremblay, J., Wheeler, M., Brinker, D.F., Chubbs, T.E., O'Malley, K., Mehus, S., Porter, B., Brooks, R.P., Watts, B.D., Bildstein, K.L., 2012, Status, biology and conservation priorities for North America’s eastern Golden Eagle (Aquila chrysaetos) population: Auk, v. 29, no. 1, p. 168-176, https://doi.org/10.1525/auk.2011.11078.
Bragin, E., Katzner, T.E., Bragin, E., 2012, Summer accumulation of large birds of prey , and the problem of estimating their number - Proceedings Menzbirovskogo Ornithological Society: Volume I: Proceedings of XIII International Ornithological Conference of Northern Eurasia, p. 234-240.
Duerr, A., Miller, T., Lanzone, M., Brandes, D., Cooper, J., O'Malley, K., Maissoneuve, C., Tremblay, J., Katzner, T.E., 2012, Testing an emerging paradigm in migration ecology shows surprising differences in efficiency between flight modes: PLOS ONE, v. 7, no. 4, p. e35548, https://doi.org/10.1371/journal.pone.0035548.
Katzner, T.E., Wheeler, M., Negro, J.J., Kapetanakos, Y., DeWoody, J.A., Horvath, M., Lovette, I., 2012, To pluck or not to pluck- scientific methodologies should be carefully chosen, not “one size fits all": Journal of Avian Biology, v. 43, p. 15-17, https://doi.org/10.1111/j.1600-048X.2011.05592.x.
Katzner, T.E., Brandes, D., Miller, T., Lanzone, M., Maissoneuve, C., Tremblay, J., Mulvihill, R., Merovich, G., 2012, Topography drives migratory flight altitude of golden eagles- implications for on-shore wind energy development: Journal of Applied Ecology, v. 49, no. 5, p. 1178-1186, https://doi.org/10.1111/j.1365-2664.2012.02185.x.
Gordon, I.J., Pollock, K., Altwegg, R., Garner, T.W., Gompper, M.E., Katzner, T.E., Pettorelli, N., Redpath, S., 2012, What the ‘food security’ agenda means for animal conservation in terrestrial ecosystems: Animal Conservation, v. 15, no. 2, p. 115-116, https://doi.org/10.1111/j.1469-1795.2012.00541.x.
Katzner, T.E., Ivy, J.R., Bragin, E., Milner-Gulland, E.J., DeWoody, J.A., 2011, Conservation implications of inaccurate estimation of cryptic population size: Animal Conservation, v. 14, no. 4, p. 328-332, https://doi.org/10.1111/j.1469-1795.2011.00444.x.
Iverson, S.A., Gavrilov, A., Katzner, T.E., Takekawa, J., Newman, S., Miller, T., Hagemeijer, W., Sivananinthaperumal, B., Mundkur, T., DeMattos, C., Ahmed, L.S., 2011, Migratory movements of waterfowl in Central Asia and avian influenza emergence- sporadic transmission of H5N1 from east to west: Ibis, v. 153, no. 2, p. 279-292, https://doi.org/10.1111/j.1474-919X.2010.01095.x.
Jones, J.P., Collen, B., Baxter, P.W., Bubb, P., Illian, J., Katzner, T.E., Keane, A., Loh, J., McDonald-Madden, E., Nicholson, E., Pereira, H., Possingham, H., Pullin, A., Rodrigues, A., Ruiz-Gutierrez, V., Sommerville, M., Milner-Gulland, E.J., 2011, The Why, What, and How of Global Biodiversity Indicators Beyond the 2010 Target: Conservation Biology, v. 25, no. 3, p. 450-457, https://doi.org/10.1111/j.1523-1739.2010.01605.x.
Terraube, J., Arroyo, B.E., Mougeot, F., Katzner, T.E., Bragin, E., 2010, Breeding biology of the Montagu’s harrier (Circus pygargus) in north-central Kazakhstan: Journal of Ornithology, v. 151, no. 3, p. 713-722, https://doi.org/10.1007/s10336-010-0505-0.
Rudnick, J.A., Katzner, T.E., DeWoody, J.A., 2009, Genetic Analyses of Noninvasively Collected Feathers Can Provide Insights into Avian Demography and Behavior In Aronoff, J.B., ed., Handbook of Nature Conservation: Hauppauge, NY, Nova Science Publishers, p. 181-197.
Miller, T.M., Brandes, D., Lanzone, M., Ombalski, D., Maisonnueve, C., Katzner, T.E., 2009, Golden eagle migration and winter behavior in Pennsylvania In Majumdar, S.K., ed., Avian Ecology and Conservation: A Pennsylvania Focus with National Implications: Immaculata, PA, Pennsylvania Academy of Sciences, p. 111-125.
Brandes, D., Miller, T.M., Katzner, T.E., 2009, Wind Power Mortality In Majumdar, S.K., ed., Avian Ecology and Conservation: A Pennsylvania Focus with National Implications: Immaculata, PA, Pennsylvania Academy of Sciences, p. 300-303.
Rudnick, J.A., Katzner, T.E., Bragin, E.A., DeWoody, J.A., 2008, A non-invasive genetic evaluation of population size, natal philopatry, and roosting behavior of non-breeding eastern imperial eagles (Aquila heliaca) in central Asia: Conservation Genetics, v. 9, p. 667-676.
Poulakakis, N., Antoniou, A., Mantziou, G., Parmakelis, A., Skartsi, T., Vasilakis, D., Elorriaga, J., De La Puente, J., Gavashelishvili, A., Ghasabyan, M., Katzner, T.E., McGrady, M.J., Batbayar, N., Fuller, M.R., Natsagdorj, T., 2008, Population structure, diversity, and phylogeography in the near-threatened Eurasian black vultures Aegypius monachus (Falconiformes; Accipitridae) in Europe- insights from microsatellite and mitochondrial DNA variation: Biological Journal of the Linnean Society, v. 95, p. 859-872.
Kenward, R., Katzner, T.E., Wink, M., Marcström, V., Walls, S., Karlbom, M., Pfeffer, R., Bragin, E.A., Hodder, K., Levin, A.S., 2007, Rapid sustainability modelling for raptors by radio tagging and DNA fingerprinting: Journal of Wildlife Management, v. 71, no. 1, p. 238-245.
Ryabtsev, V.V., Katzner, T.E., 2007, Severe declines of Eastern Imperial Eagle Aquila heliaca populations in the Baikal region, Russia- a modern and historical perspective: Bird Conservation International, v. 17, no. 03, p. 197-209.
Rudnick, J.A., Katzner, T.E., Bragin, E.A., DeWoody, J.A., 2007, Species identification of birds through genetic analysis of naturally shed feathers: Molecular Ecology Notes, p. 757-762.
Katzner, T.E., Milner-Gulland, E.J., Bragin, E.A., 2007, Using modeling to improve monitoring of structured populations- are we collecting the right data?: Conservation Biology, v. 21, no. 1, p. 241-252.
Katzner, T.E., Bragin, E.A., Milner-Gulland, E.J., 2006, Modelling populations of long lived birds of prey for conservation- a study of Imperial Eagles (Aquila heliaca) in Kazakhstan: Biological Conservation, v. 132, no. 3, p. 322-335.
Katzner, T.E., 2005, Corruption - a double-edged sword for conservation? A response to Smith and Walpole.: Oryx, v. 39, no. 3, p. 260-262.
Katzner, T.E., Robertson, S., Robertson, B., Klucsarits, J., McCarty, K.M., Bildstein, K.L., 2005, Results from a long-term nest-box program for American Kestrels- implications for improved population monitoring and conservation: Journal of Field Ornithology, v. 76, no. 3, p. 217-318.
Busch, J., Katzner, T.E., Bragin, E.A., Keim, P., 2005, Tetranucleotide microsatellites for aquila and haliaeetus eagles: Molecular Ecology Notes, v. 5, no. 1, p. 39-41.
Rudnick, J.A., Katzner, T.E., Bragin, E.A., Rhodes, O.E., DeWoody, J.A., 2005, Using naturally shed feathers for individual identification, genetic parentage analyses, and population monitoring in an endangered Eastern imperial eagle (Aquila heliaca) population from Kazakhstan: Molecular Ecology, v. 14, no. 10, p. 2959-2967.
Katzner, T.E., Hsun Lai, C., Gardiner, J.D., Foggin, J.M., Pearson, D., Smith, A.T., 2004, Adjacent nesting by Lammergeier Gypaetus barbatus and Himalayan Griffon Gyps himalayensis on the Tibetan Plateau, China: Forktail, v. 20, p. 94-96.
Leppert, L.L., Layman, S., Bragin, E.A., Katzner, T.E., 2004, Survey for Hemoparasites in Imperial Eagles (Aquila heliaca), Steppe Eagles (Aquila nipalensis), and White-tailed Sea Eagles (Haliaeetus albicilla) from Kazakhstan: Journal of Wildlife Diseases, v. 40, no. 2, p. 316-319.
Sharik, T.L., Katzner, T.E., Bragina, T.M., 2003, A new species of Copidosoma Ratzeburg (Hymenoptera- Encyrtidae) from eagle nests in Kazakhstan: Journal of Hymenoptera Research, v. 12, no. 2, p. 308-311.
Pain, D.J., Cunningham, P.G., Donald, P.F., Duckworth, J.W., Houston, D.C., Katzner, T.E., Parry-Jones, J., Poole, C., Prakash, V., Round, P., Timmins, R., 2003, Causes and impacts of temporospatial declines of Gypsvultures in Asia: Conservation Biology, v. 17, no. 3, p. 661-671.
Katzner, T.E., Parker, K.L., 1998, Long distance movements from established burrow sites by pygmy rabbits (Brachylagus idahoensis) in southwestern Wyoming: Northwest Naturalist, v. 79, no. 2, p. 72-74.
Katzner, T.E., Cruz, Y.P., 1998, Survival of the Polyembryonic Parasitoid Copidosomopsis tanytmema (Hymenoptera- Encyrtidae) in Envenomized Larvae of its Host Anagasta kuehniella (Lepidoptera- Pyralidae): Annals of the Entomological Society of America, v. 91, no. 6, p. 808-812.
Katzner, T.E., Parker, K.L., Hardegree, S.P., 1997, Metabolism and Thermal Response in Winter-Acclimatized Pygmy Rabbits (Brachylagus idahoensis): Journal of Mammalogy, v. 78, no. 4, p. 1053-1062.
Katzner, T.E., Parker, K.L., 1997, Vegetative Characteristics and Size of Home Ranges Used by Pygmy Rabbits (Brachylagus idahoensis) during Winter: Journal of Mammalogy, v. 78, no. 4, p. 1063-1072.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
To request an interview, contact fresc_outreach@usgs.gov or call (541) 750-1030.
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