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Publications

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.

Filter Total Items: 5011

Warmwater fish in small standing waters Warmwater fish in small standing waters

No abstract available.
Authors
M.K. Flammang, D.E. Shoup, P.H. Michaletz, Kevin L. Pope

Warmwater fish in large standing waters Warmwater fish in large standing waters

No abstract available.
Authors
Leandro E. Miranda, K.I. Bonvechio, J. Koch, R. Moncayo-Estrada

Warmwater fish in wadeable streams Warmwater fish in wadeable streams

No abstract available.
Authors
Norman Mercado-Silva, John Lyons, Stephan J. Magnelia, James T. Peterson, Allison H. Roy

Droughts reshape apex predator space use and intraguild overlap Droughts reshape apex predator space use and intraguild overlap

1. Droughts are increasing in frequency and severity globally due to climate change, leading to changes in resource availability that may have cascading effects on animal ecology. Resource availability is a key driver of animal space use, which in turn influences interspecific interactions like intraguild competition. Understanding how climate-induced changes in resource availability...
Authors
Leigh West, Kasim Rafiq, Sarah J. Converse, Alan M. Wilson, Neil R. Jordan, Krystyna A. Golabek, J. Weldon McNutt, Briana Abrahms

Juvenile coho salmon growth differences track biennial pink salmon spawning patterns Juvenile coho salmon growth differences track biennial pink salmon spawning patterns

1. Spawning Pacific salmon (Oncorhynchus spp.) provide marine-derived resources (MDR) to freshwater food webs in the form of eggs, flesh and maggots that consume salmon carcasses, all of which positively impact stream-dwelling fish growth. Pink salmon (O. gorbuscha) are widely distributed throughout coastal catchments along the North Pacific Ocean and display increased spawning...
Authors
Kevin A. Fitzgerald, J. Ryan Bellmore, Jason B. Fellman, Matthew L.H. Cheng, Naomi Boyles-Muehleck, Claire E. Delbecq, Jeffrey A. Falke

Penguin colony georegistration using camera pose estimation and phototourism Penguin colony georegistration using camera pose estimation and phototourism

Satellite-based remote sensing and uncrewed aerial imagery play increasingly important roles in the mapping of wildlife populations and wildlife habitat, but the availability of imagery has been limited in remote areas. At the same time, ecotourism is a rapidly growing industry and can yield a vast catalog of photographs that could be harnessed for monitoring purposes, but the inherently...
Authors
Haoyu Wu, Clare Flynn, Carole Hall, Christian Joseph Che-Castaldo, Dimitris Samaras, Mathew Schwaller, Heather J. Lynch

Spatial distribution patterns of invasive silver carp can inform removal efforts in an oxbow lake of the Mississippi River Spatial distribution patterns of invasive silver carp can inform removal efforts in an oxbow lake of the Mississippi River

Oxbow lakes are highly productive waterbodies that host multiple life stages of many freshwater aquatic species. These lakes also provide foraging and rearing habitat to the invasive silver carp (Hypophthalmichthys molitrix) enabling populations to grow in biomass and abundance that can add propagule pressure to connected waterways and oxbows within the Mississippi River Basin...
Authors
Jordan C. Besson, Leandro E. Miranda, Michael E. Colvin, Corey Garland Dunn, Dennis K. Riecke

The influence of grazing on the spatiotemporal activity patterns of a primary sage-grouse nest predator The influence of grazing on the spatiotemporal activity patterns of a primary sage-grouse nest predator

Perturbations in ecological processes can occur when wildlife alter their spatiotemporal activity patterns to avoid human activities that they perceive as a risk. Such perturbations can have cascading effects throughout wildlife communities. For greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse), nest predation plays an important role in population dynamics. Domestic...
Authors
Nolan A. Helmstetter, Courtney J. Conway, Shane Roberts, Paul D. Makela, Lisette P. Waits

Predator-specific mortality of sage-grouse nests based on predator DNA on eggshells Predator-specific mortality of sage-grouse nests based on predator DNA on eggshells

Greater sage-grouse (hereafter sage-grouse; Centrocercus urophasianus) populations have declined across their range. Increased nest predation as a result of anthropogenic land use is one mechanism proposed to explain these declines. However, sage-grouse contend with a diverse suite of nest predators that vary in functional traits (e.g., search tactics or hunting mode) and abundance...
Authors
Nolan A. Helmstetter, Courtney J. Conway, Shane Roberts, Jennifer R. Adams, Paul D. Makela, Lisette P. Waits

A multi-objective approach for timber harvest scheduling to include management of at-risk species and spatial configuration objectives A multi-objective approach for timber harvest scheduling to include management of at-risk species and spatial configuration objectives

Sustainable forestry typically involves integration of several economic and ecological objectives which, at times, may not be compatible with one another. Multi-objective prioritization via harvest scheduling programs can be used to elucidate these relationships and explore solutions. One such program is a spatially explicit harvest scheduler that adopts the Metropolis-Hastings algorithm...
Authors
Max D. Jones, Angela Larsen-Gray, Stephen P. Prisley, Holly L. Munro, Elizabeth Ann Hunter

Influence of stream temperature and human disturbance on prespawn mortality of Chinook Salmon in the Willamette River basin Influence of stream temperature and human disturbance on prespawn mortality of Chinook Salmon in the Willamette River basin

Objective Premature mortality of adult female Chinook Salmon Oncorhynchus tshawytscha is a major barrier to population recovery. The Willamette River basin, Oregon, typifies the problems that are faced by fishery managers in the Pacific Northwest (USA). Adult salmon are trapped and transported upstream of dams to access historical spawning grounds, but annual rates of prespawn mortality...
Authors
Katherine C. Carey, Michael L. Kent, Carl B. Schreck, Claire E. Couch, Luke Whitman, James Peterson

Evaluating the effects of nest management on a recovering raptor using integrated population modeling Evaluating the effects of nest management on a recovering raptor using integrated population modeling

Evaluating population responses to management is a crucial component of successful conservation programs. Models predicting population growth under different management scenarios can provide key insights into the efficacy of specific management actions both in reversing population decline and in maintaining recovered populations. Bald eagle (Haliaeetus leucocephalus) conservation in the...
Authors
Caroline D. Cappello, Kenneth V. Jacobson, James T. Driscoll, Kyle M. McCarty, Javan Mathias Bauder
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