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Publications

This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.  

Filter Total Items: 43304

Proximity to roads does not modify inorganic nitrogen deposition in a topographically complex, high traffic, subalpine forest Proximity to roads does not modify inorganic nitrogen deposition in a topographically complex, high traffic, subalpine forest

Vehicles are an important source for N deposition that may negatively impact roadside ecosystems. While elevated roadside N deposition has been found in many locations, it is not yet known if vehicle emissions cause measurable increases of N deposition in complex, mountainous terrain adjacent to roads. To address this, this study investigated the effect of vehicle N emissions on...
Authors
Katherine S. Rocci, M. Francesca Catrufo, Jill Baron

Gopherus Agassizii (Mojave Desert Tortoise). nest depredation Gopherus Agassizii (Mojave Desert Tortoise). nest depredation

Nest site selection is an important determinant of clutch success and hatchling sex ratios in Gopherus agassizii, Mojave Desert tortoises (Spotila et al. 1994. Herpetol. Monogr. 8:103-116). G. agassizii lay eggs in or near the entrance of their burrows (Ennen et al. 2012. Copeia 2012:222-228) and females of both G. agassizii and G. morafkai, may reduce egg predation risk by remaining at...
Authors
Megan Peukert, Gerardo Avila, William J. Hoese, Christopher R. Tracy, Philip L. Boyd, Kristy L. Cummings, Shellie R. Puffer, Jeffrey E. Lovich

USGS invasive carp database management and integration support USGS invasive carp database management and integration support

Invasive carp tracking, monitoring, and contracted removal will continue throughout the Illinois River and upper Mississippi River as part of an adaptive management effort to mitigate, control, and contain invasive carp. Other fish will also be tracked to maintain a holistic view of the transmitter distribution in the Upper IWW. To facilitate these actions, a need to compile and analyze...
Authors
Aaron C. Murphy, Marybeth K. Brey, Matthew Walker

A proposed methodology for conducting threats assessments within the Great Lakes Coregonines restoration framework A proposed methodology for conducting threats assessments within the Great Lakes Coregonines restoration framework

This document serves to fulfill the Coregonine Threats Assessment Science Team’s charge of providing a written recommendation for a methodology to conduct threats assessments for Great Lakes coregonines within the Coregonine Restoration Framework (CRF). Through a series of team meetings that included presentations by experts on five candidate threats assessment frameworks followed by...
Authors
Andrew Edgar Honsey, David R. Smith, Charles R. Bronte, Andy Cook, D. Andrew R. Drake, Dimitry Gorsky, Timothy B. Johnson, Nicholas E. Mandrak, James J. Roberts, Shawn P. Sitar

Status and trends in the Lake Superior fish community, 2023 Status and trends in the Lake Superior fish community, 2023

The U.S. Geological Survey annually conducts fishery surveys across Lake Superior that describe trends in fish species occurrence and relative abundance to inform fisheries management and large lake ecology. In 2023, the Lake Superior fish community was sampled with daytime bottom and surface trawls at 51 nearshore locations in June and 31 offshore locations in July. Nearshore bottom...
Authors
Mark R. Vinson, Lori M. Evrard, Owen T. Gorman, Sydney B Phillips, Daniel L. Yule

Chapter 24 - Resilience-based challenges and opportunities for fisheries management in Anthropocene rivers Chapter 24 - Resilience-based challenges and opportunities for fisheries management in Anthropocene rivers

Few pristine rivers remain worldwide, as they are among the most anthropogenically modified ecosystems. We suggest the geomorphology, hydrology and ecology of Anthropocene rivers are fundamentally different from historical natural rivers. These changes challenge conventional fisheries management practices, suggesting the tools supporting fisheries management may require expansion so that
Authors
Jason A. DeBoer, Kristen L. Bouska, Christian Wolter, Martin C. Thoms

Geographic distribution: Incilius alvarius (Sonoran desert toad) Geographic distribution: Incilius alvarius (Sonoran desert toad)

No abstract available.
Authors
Erika M. Nowak, Karina Cocks, Charles A. Drost, Janie Agyagos, Eve Berlinksy, Jennifer Steffen, Rafal Banas, Meredith Talbert, Sara Eno
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