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Second guessing the maximum likelihood estimator values for bat surveys Second guessing the maximum likelihood estimator values for bat surveys
TThe U.S. Fish and Wildlife Service allows acoustical surveys and automated identification software to determine the presence of the endangered northern long-eared bat (Myotis septentrionalis) and Indiana bat (Myotis sodalis). Analytical software is required to assess presence probability on a site-night basis using a maximum likelihood estimator (MLE) that accounts for interspecific bat
Authors
W. Mark Ford, Jesse L. De La Cruz, Emily D. Thorne, Alexander Silvis, Michael P. Armstrong, R. Andrew King
Southern fox squirrel and eastern gray squirrel interactions in a fire-maintained ecosystem Southern fox squirrel and eastern gray squirrel interactions in a fire-maintained ecosystem
Southern fox squirrels (Sciurus niger niger) have been declining due to habitat fragmentation, cover type conversion, and fire suppression in the Southeast. A decrease in growing season burns has led to hardwood encroachment and forest mesophication that benefit the competing eastern gray squirrels (S. carolinensis). In the southern Coastal Plain and Piedmont of Virginia, these pattern...
Authors
M.H. Guill, J.L. De La Cruz, M. Puckett, S.D. Klopfer, B. Martin, W. Mark Ford
Second guessing the maximum likelihood estimator values for bat surveys. Second guessing the maximum likelihood estimator values for bat surveys.
The U.S. Fish and Wildlife Service allows acoustical surveys and automated identification software to determine the presence of the endangered northern long-eared bat (Myotis septentrionalis) and Indiana bat (Myotis sodalis). Analytical software is required to assess presence probability on a site-night basis using a maximum likelihood estimator (MLE) that accounts for interspecific bat
Authors
W. Mark Ford, Jesse L. De La Cruz, Emily D. Thorne, Alexander Silvis, Michael P. Armstrong, R. Andrew King
Seasonal activity patterns of northern long-eared bats at hibernacula in western Virginia Seasonal activity patterns of northern long-eared bats at hibernacula in western Virginia
Understanding the relationships of biotic and abiotic factors to seasonal activity at hibernacula is important for the conservation of bats impacted by white-nose syndrome (WNS). Research on the relative and probable activity patterns of the federally endangered northern long-eared bat (Myotis septentrionalis) primarily has focused on summer maternity colonies, whereas surveys at...
Authors
Jesse L. De La Cruz, Richard J. Reynolds, Wil Orndorff, Thomas Malabad, Katarina Kosic Ficco, Karen E. Powers, W. Mark Ford
Seasonal activity patterns of northern long-eared bats on the coastal Mid-Atlantic Seasonal activity patterns of northern long-eared bats on the coastal Mid-Atlantic
Conservation of bats declining from white-nose syndrome (WNS) impacts requires an understanding of both temporal and landscape-level habitat relationships. Traditionally, much of the research on bat ecology has focused on behavior of summer maternity colonies within species’ distribution cores, including that of the endangered northern long-eared bat (Myotis septentrionalis). To further...
Authors
Jesse L. De La Cruz, Nicholas J. Kalen, Elaine L. Barr, Emily D. Thorne, Alexander Silvis, Richard J. Reynolds, W. Mark Ford
FY 2023 herring disease program annual report FY 2023 herring disease program annual report
No abstract available.
Authors
Paul Hershberger, David James Páez
Surface elevation trends in North Carolina's coastal wetlands Surface elevation trends in North Carolina's coastal wetlands
Coastal wetlands exist in the narrow fringe between uplands and open water and consequently, are uniquely vulnerable to the impacts of sea level rise (SLR). Predictive models suggest that in the coming decades sea level rise will lead to substantial losses of coastal wetland habitat in North Carolina. Empirical measurements of wetland response to SLR are vital for understanding which...
Authors
Robbie Fearn, Cat Bowler, Rick Savage, Pat Donovoan-Bradenburg, Aaron Houran, Reide Corbett, Stu Hamilton, Carolyn Currin, Jenny Davis, Michael Greene, Anna Hilting, Brandon Puckett, Quentin Walker, Justin Ridge, Cayla Cothron, Sarah Spiegler, Marcelo Ardón, Mike Burchell, Nisse Goldberg, Aaron McCall, Eric Soderholm, Christine Voss, Lorie Sutter, Michelle Moorman, Justine Annaliese Neville, Ches Vervaeke
Models: Tools for estimating and predicting subsidence Models: Tools for estimating and predicting subsidence
No abstract available.
Authors
Vivek Bedekar, Tyler Hatch, Jonathan A. Traum, Gus Tolley, Abhishek Singh, Claudia C. Faunt
occupancyTuts: Occupancy modelling tutorials with RPresence occupancyTuts: Occupancy modelling tutorials with RPresence
1. The occupancy modelling framework offers tremendous flexibility in estimating species abundance and distribution patterns while accounting for imperfect detection, and has seen rapid growth and adoption since its introduction at the beginning of the century. 2. At the same time, in an era of big data, there are increasing demands on developing quantitative skills and proficiency in...
Authors
Therese M. Donovan, James E. Hines, Darryl MacKenzie
Home range size and resource use by eastern spotted skunks in Virginia Home range size and resource use by eastern spotted skunks in Virginia
Throughout much of the eastern U.S., many forested ecosystems have lost large amounts of core forest areas due to land-use change, isolating wildlife in forest fragments. The eastern spotted skunk (Spilogale putorius) is considered a species of conservation concern in Virginia, where populations are restricted to spatially disjunct forest patches in the central Appalachian Mountains. We...
Authors
Emily D. Thorne, Michael L. Fies, W. Mark Ford
Determining the distribution, status, and linkages of Agassiz's desert tortoise populations in the uplands surrounding the Coachella Valley Determining the distribution, status, and linkages of Agassiz's desert tortoise populations in the uplands surrounding the Coachella Valley
In support of the goals of the Coachella Valley Conservation Commission and the Bureau of Land Management, we performed surveys to determine the status, distribution, demographics, and possible genetic linkages of Agassiz’s desert tortoise (Gopherus agassizii) populations within the Coachella Valley Multiple Species Habitat Conservation Plan (CVMSHCP) area during a multi-decadal...
Authors
Michele R. Puffer, Jeffrey E. Lovich, Kristy L. Cummings
First Occurrence of the nonindigenous Asian foraminifera Ammonia confertitesta in the Northeastern Pacific Ocean: Vancouver Island, British Columbia, Canada First Occurrence of the nonindigenous Asian foraminifera Ammonia confertitesta in the Northeastern Pacific Ocean: Vancouver Island, British Columbia, Canada
Observations in 2022 of intertidal and subtidal foraminiferal faunas at four localities along the central-eastern side of Vancouver Island, British Columbia, Canada, and molecular analyses have documented the first occurrence of the nonindigenous Asian species Ammonia confertitesta Zheng in the northwestern Pacific Ocean. The species was present at three of these localities: Davis Lagoon...
Authors
Mary McGann, Maria Holzmann