Publications
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Juvenile i`iwi detected in lower elevations of Hawaii Volcanoes National Park
The Hawaiian islands are home
to a diverse array of plants and
animals found nowhere else on
Earth. Among the most famous of
these are the spectacular Hawaiian
honeycreepers, a group that evolved
from a single flock of ancestral
finches into at least 54 unique
species. Unfortunately, the same
isolation that fostered such dramatic
adaptive radiation left Hawaiian
species vulnerable.
Un
Authors
Jacqueline M. Gaudioso, Angela T. Beck
Home range and use of habitat of western yellow-billed cuckoos on the middle Rio Grande, New Mexico
The western yellow-billed cuckoo (Coccyzus americanus occidentalis) is a Distinct Population Segment that has been proposed for listing under the Endangered Species Act, yet very little is known about its spatial use on the breeding grounds. We implemented a study, using radio telemetry, of home range and use of habitat for breeding cuckoos along the Middle Rio Grande in central New Mexico in 2007
Authors
Juddson Sechrist, Darrell Ahlers, Katherine Potak Zehfuss, Robert Doster, Eben H. Paxton, Vicky M. Ryan
Pacific Island landbird monitoring annual report, Haleakalā National Park, 2012
Haleakalā National Park (HALE) was surveyed for landbirds and habitat characteristics from March 20 through July 26, 2012. This information provides data in the time-series of landbird monitoring for long-term trends in forest bird distribution, density, and abundance. The Kīpahulu District of eastern Haleakalā Volcano was surveyed using point-transect distance sampling to estimate bird abundance.
Authors
Seth W. Judge, Richard J. Camp, Patrick J. Hart
Invasive species management restores a plant-pollinator mutualism in Hawaii
1.The management and removal of invasive species may give rise to unanticipated changes in plant–pollinator mutualisms because they can alter the composition and functioning of plant–pollinator interactions in a variety of ways. To utilize a functional approach for invasive species management, we examined the restoration of plant–pollinator mutualisms following the large-scale removal of an invasi
Authors
Cause Hanna, David Foote, Claire Kremen
Experimental evidence for evolved tolerance to avian malaria in a wild population of low elevation Hawai`i `Amakihi (Hemignathus virens)
Introduced vector-borne diseases, particularly avian malaria (Plasmodium relictum) and avian pox virus (Avipoxvirus spp.), continue to play significant roles in the decline and extinction of native forest birds in the Hawaiian Islands. Hawaiian honeycreepers are particularly susceptible to avian malaria and have survived into this century largely because of persistence of high elevation refugia on
Authors
Carter T. Atkinson, Katerine S. Saili, Ruth B. Utzurrum, Susan I. Jarvi
Next-generation sequencing reveals cryptic mtDNA diversity of Plasmodium relictum in the Hawaiian Islands
Next-generation 454 sequencing techniques were used to re-examine diversity of mitochondrial cytochrome b lineages of avian malaria (Plasmodium relictum) in Hawaii. We document a minimum of 23 variant lineages of the parasite based on single nucleotide transitional changes, in addition to the previously reported single lineage (GRW4). A new, publicly available portal (Integroomer) was developed fo
Authors
S.I. Jarvi, M.E. Farias, D.A. Lapointe, M. Belcaid, C. T. Atkinson
Avian disease assessment in seabirds and non-native passerines birds at Midway Atoll NWR
Midway Atoll in the Northwestern Hawaiian Islands supports the largest breeding colony of Laysan albatross (Phoebastria immutabilis) in the world and is a proposed site for the translocation of endangered Northwestern Hawaiian Island passerine birds such as the Nihoa finch (Telespiza ultima), Nihoa millerbird (Acrocephalus familiaris kingi), or Laysan finch (Telespiza cantans). On the main Hawaiia
Authors
Dennis A. LaPointe, Carter T. Atkinson, John L. Klavitter
Reversion to virulence and efficacy of an attenuated canarypox vaccine in Hawai'i 'Amakihi (Hemignathus Virens)
Vaccines may be effective tools for protecting small populations of highly susceptible endangered, captive-reared, or translocated Hawaiian honeycreepers from introduced Avipoxvirus, but their efficacy has not been evaluated. An attenuated Canarypox vaccine that is genetically similar to one of two passerine Avipoxvirus isolates from Hawai‘i and distinct from Fowlpox was tested to evaluate whether
Authors
Carter T. Atkinson, Kimberly C. Wiegand, Dennis Triglia, Susan I. Jarvi
One year of migration data for a western yellow-billed cuckoo
In 2009, we studied the migration of the Western Yellow-billed Cuckoo by capturing 13 breeding birds on the middle Rio Grande, New Mexico, and attaching a 1.5-g Mk 14-S British Antarctic Survey geolocator to each bird. In 2010, we recaptured one of the cuckoos, enabling us to download its geolocation data. The cuckoo had flown approximately 9500 km during its southward migration, traveling through
Authors
Juddson D. Sechrist, Eben H. Paxton, Darrell D. Ahlers, Robert H. Doster, Vicky M. Ryan
Response of palila and other subalpine Hawaiian forest bird species to prolonged drought and habitat degradation by feral ungulates
Extinction has claimed half of all historically-known Hawaiian passerines, and today many extant species are increasingly threatened due to the combined effects of invasive species and climate change. Habitat disturbance has affected populations of feeding specialists most profoundly, and our results indicate that specialists continue to be most vulnerable, although even some abundant, introduced,
Authors
Paul C. Banko, Richard J. Camp, Chris Farmer, Kevin W. Brinck, David L. Leonard, Robert M. Stephens
Palynological composition of a Lower Cretaceous South American tropical sequence: Climatic implications and diversity comparisons with other latitudes.
Premise of the study: Reconstruction of floristic patterns during the early diversification of angiosperms is impeded by the scarce fossil record, especially in tropical latitudes. Here we collected quantitative palynological data from a stratigraphic sequence in tropical South America to provide floristic and climatic insights into such tropical environments during the Early Cretaceous.
Methods:
Authors
Paula J. Mejia-Velasquez, David L. Dilcher, Carlos A. Jaramillo, Lucas B. Fortini, Steven R. Manchester
Elucidating spatially explicit behavioral landscapes in the Willow Flycatcher
Animal resource selection is a complex, hierarchical decision-making process, yet resource selection studies often focus on the presence and absence of an animal rather than the animal's behavior at resource use locations. In this study, we investigate foraging and vocalization resource selection in a population of Willow Flycatchers, Empidonax traillii adastus, using Bayesian spatial generalized
Authors
Amanda V. Bakian, Kimberly A. Sullivan, Eben H. Paxton