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State Conservation Magazines

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Browse publications authored by our scientists.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more. **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.

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Our Story

Blooming wildflowers in Pinnacles National Park.

The circular highlights how our research efforts fulfill larger USGS strategic goals.

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Our History

Tricolored Heron at Ding Darling National Park

This book is dedicated to those who are or have been associated with the unit program. 

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Our Research

Yellow-billed Loon on a lake in the northern area of Alaska.

This report provides abstracts of most of the ongoing and recently completed research.

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Filter Total Items: 4675

New distributional record of the federally threatened Rabbitsfoot Mussel (Theliderma cylindrica) in Oklahoma

Sampling conducted from May to August of 2024 yielded new distributional records for the federally threatened Theliderma cylindrica (Rabbitsfoot) in the Caney River, OK. We found 4 live individuals, representing at least 2 age classes, ∼7 km upstream of the confluence with the Verdigris River. This report is the first documentation of live Rabbitsfoot in the Caney River, where the...
Authors
Hunter M. Torolski, James M. Long, Robert Charles Lonsinger, Lindsey A. Bruckerhoff
By
Cooperative Research Units

Weather, habitat area, connectivity, and number of patches influence breeding ecology of ring-necked pheasants

Understanding habitat selection is critical in habitat prioritization for species of conservation and management concern. Information on habitat selection is particularly important for grassland bird species whose populations have suffered steep declines over the last few decades. We assessed ring-necked pheasants' (Phasianus colchicus) habitat selection in a dynamic agricultural...
Authors
Sprih Harsh, Robert Charles Lonsinger, Hilary R. Kauth, Andrew J. Gregory
By
Cooperative Research Units

Ungulate migrations of the Western United States, volume 5

Many ungulates migrate between distinct summer and winter ranges to take advantage of spatially and temporally variable food sources and avoid threats such as predators and deep snow. In 2018, the U.S. Department of the Interior established Secretarial Order 3362, which provided Federal support to expand existing research efforts to study ungulate populations and conserve their...
Authors
Matthew Kauffman, Blake Lowrey, Jennifer L. McKee, Travis Allen, Chloe Beaupre, Jeffrey L. Beck, Scott Bergen, Justin Binfet, Shelly Blair, James W. Cain, Peyton Carl, Todd Cornish, Michelle L. Cowardin, Rachel Curtis, Melia DeVivo, Jennifer Diamond, Katie M. Dugger, Orrin Duvuvuei, C.J. Ellingwood, Darby Finely, Jessica Fort, Eric Freeman, Ian Freeman, Jeff Gagnon, Emily Gelzer, Jacob Gray, Evan Greenspan, Curtis Hendricks, Valerie Hinojoza-Rood, Matthew Jeffress, Carolyn A. Kyle, Zach Lockyer, Cody McKee, Jerod A. Merkle, Jerrod Merrell, Matthew A. Mumma, Jake Powell, Craig D. Reddell, Adele K. Reinking, Robert Ritson, Sierra Robatcek, Benjamin Seward Robb, Brianna M. Russo, Hall Sawyer, Cody Schroeder, Elissa Slezak, Scott Sprague, Erik Steiner, Alethea Steingisser, Thomas Stephenson, Nicole M. Tatman, Kaitlyn L. Taylor, Don Whittaker, Travis Zaffarano
By
Cooperative Research Units

Confluence of time and space: An innovation for quantifying dynamics of hydrologic floodplain connectivity with remote sensing and GIS

Hydrologic connectivity is a crucial determinant of aquatic ecosystem services, governing the exchange of nutrients, sediments, chemicals, and biota. Various indices and metrics exist for quantifying hydrologic connectivity across diverse environments and scales. However, existing methodologies often fail to adequately capture lateral connectivity between floodplain lakes and streams...
Authors
Hafez Ahmad, Leandro E. Miranda, Corey Garland Dunn, Melanie R. Boudreau, Michael E. Colvin, Padmanava Dash
By
Cooperative Research Units

Impoundments facilitate upstream invasion and introgression: Case studies of fluvial black basses (Micropterus spp.) in the southeastern USA

Impoundment construction has resulted in the alternation and loss of fluvial habitats, threatening the persistence of many native fishes. Compounding this threat, non-native species stocked into impoundments often invade interconnected fluvial habitats, where they may negatively affect native species. Black basses (genus Micropterus) are popular sportfishes with divergent ecologies: some...
Authors
A. T. Taylor, M.D. Tringali, James M. Long
By
Cooperative Research Units

Determining the effects of reduced water availability on seed germination of five bottomland hardwood tree species

Globally, floodplain forests are experiencing shifts in species composition associated with drier conditions and disruptions of flood pulse hydrology. The specific processes behind these shifts in composition are not fully understood, but differential effects of drought on regeneration processes such as seed germination may be partially responsible. To determine how reduced water...
Authors
Charles J. Pell, Sammy L. King, Tracy S. Hawkins, Matt Symmank
By
Cooperative Research Units

Reproductive contribution of lake sturgeon transferred upstream of dams on a Great Lakes tributary

Dam construction contributes to declines in the distribution and abundance of many fishes. Increasing connectivity through adult transfer can be demographically and genetically beneficial, but assessing the effects resulting from transfer can be difficult if resident fish exist upstream. Genotypes of adult and larval lake sturgeon (Acipenser fulvescens) were used to quantify...
Authors
Patrick S. Forsythe, Nicholas Sard, Stefan Tucker, Lexi Atler, Jeannette Kanefsky, Jennifer M Johnson, Daniel A. Isermann, Robert F. Elliott, Michael Donofrio, Kim T. Scribner
By
Cooperative Research Units

Integrated analysis of marked and count data to characterizefine-scale stream fish movement

Immigration and emigration are key demographic processes of animal population dynamics. However, 3 we have limited knowledge on how fine-scale movement varies over space and time. We developed a 4 Bayesian integrated population model using individual mark-recapture and count data to characterize 5 fine-scale movement of stream fish at 20-m resolution every two months for 28 months. Our...
Authors
Yoichiro Kanno, Kasey Celene Pregler, Seoghyun Kim
By
Cooperative Research Units

Flying fish habitat and co-occurrence with seabirds in the northern Gulf of Mexico

Flying fish (family Exocoetidae) play an important role in marine food webs, linking sub-surface and aerial predators. The association of seabirds with sub-surface predators in subtropical and tropical regions through facilitated foraging events is a well-known phenomenon and is sometimes used to identify fishing grounds for flying fish, flying fish roe, and tunas. In the northern Gulf...
Authors
Pamela E. Michael, J. Christopher Haney, Jeffrey S. Gleason, Kathy M. Hixson, Yvan Satgé, Patrick G.R. Jodice
By
Cooperative Research Units

Multiple dimensions define thresholds for population resilience of the eastern oyster, Crassostrea virginica

A species' distribution depends on its tolerance to environmental conditions. These conditions are defined by a minimum, maximum, and optimal ranges of single and combined factors. Forays into environmental conditions outside the minimum or maximum tolerance of a species (i.e., thresholds) are predicted to have large effects on a species' population and may help predict population...
Authors
Megan La Peyre, Hongqing Wang, Shaye E. Sable, Wei Wu, Bin Li, Devin Comba, Carlos Perez, Melanie Bates, Lauren M. Swam
By
Cooperative Research Units

Fatal interactions: Pneumonia in bighorn lambs following experimental exposure to carriers of Mycoplasma ovipneumoniae

We hypothesized that bighorn sheep ewes with chronic nasal Mycoplasma ovipneumoniae carriage are the source of infection that results in fatal lamb pneumonia. We tested this hypothesis in captive bighorn ewes at two study facilities over a 5-year period, by identifying carrier ewes and then comparing lamb fates in groups that did (exposed pens) or did not (non-exposed pens) include one...
Authors
Logan K. Weyand, Brandi L. Felts, E. Frances Cassirer, Jonathan A. Jenks, Daniel P. Walsh, Thomas H. Besser
By
Cooperative Research Units

Optimization of wetland environmental DNA metabarcoding protocols for Great Lakes region herpetofauna

Many species of reptiles and amphibians (herpetofauna) rely on wetlands that are being degraded and lost at a high rate. Characterization of herpetofauna diversity in different wetland types may help guide conservation strategies. However, traditional survey methods often involve sampling within small temporal windows, and the gear deployed may be taxonomically biased, thus, they may...
Authors
Olivia M. Ruppert, Jared Joseph Homola, Jeannette Kanefsky, Alyssa Swinehart, Kim T. Scribner, John A. Robinson
By
Cooperative Research Units
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