In Support of the U.S. Fish and Wildlife Service 3-Bat Species Status Assessment: Winter Colony Count Analysis

Dates

Publication Date: 2021-06-04
Start Date: 1990
End Date: 2020

Citation

Cheng, T., Frick, W., Reichert, B.E., Thogmartin, W.E., Udell, B.J., Wiens, A., Whitby, M., Reichard, J., Szymanski, J., 2021, In Support of the U.S. Fish and Wildlife Service 3-Bat Species Status Assessment: Winter Colony Count Analysis: U.S. Geological Survey data release, https://doi.org/10.5066/P9YG45TG.

Summary

Through the North American Bat Monitoring Program, Bat Conservation International and U.S Geological Survey (USGS) provided technical and science support to assistance in U.S. Fish and Wildlife Service Species Status Assessment ("SSA") for the northern long-eared bat (Myotis septentrionalis), little brown bat (Myotis lucifugus), and tri-colored bat (Perimyotis subflavus). USGS facilitated the SSA data call providing data archival for repeatable and transparent analyses, provided statistical support to assess the historical, current, an future population status for each of the three species, and developed a demographic projection tool to evaluate future viability of each species under multiple threat scenarios. We assessed population [...]

Summary

Through the North American Bat Monitoring Program, Bat Conservation International and U.S Geological Survey (USGS) provided technical and science support to assistance in U.S. Fish and Wildlife Service Species Status Assessment ("SSA") for the northern long-eared bat (Myotis septentrionalis), little brown bat (Myotis lucifugus), and tri-colored bat (Perimyotis subflavus). USGS facilitated the SSA data call providing data archival for repeatable and transparent analyses, provided statistical support to assess the historical, current, an future population status for each of the three species, and developed a demographic projection tool to evaluate future viability of each species under multiple threat scenarios. We assessed population trends from count surveys of wintering colonies at hibernacula for these three bat species. Winter colony counts were downloaded from the database of the North American Bat Monitoring Program (U.S. Geological Survey North American Bat Monitoring Program. Accessed 2020-12-01. NABat Request Number 12. Database Version v5.4.0).

Contacts

Point of Contact :: Brian E Reichert
Originator :: Tina Cheng, Winifred Frick, Brian Reichert, Wayne E Thogmartin, Bradley J Udell, Ashton M Wiens, Michael Whitby, Jonathan Reichard, Jennifer Szymanski
Publisher :: U.S. Geological Survey
Distributor :: U.S. Geological Survey - ScienceBase
SDC Data Owner :: Fort Collins Science Center
USGS Mission Area :: Ecosystems

Attached Files

Click on title to download individual files attached to this item.

Metadata_SSA_Colony_Count_Model_Output.xml Original FGDC Metadata	View	56.96 KB	application/fgdc+xml
lambda_colonycount_SSA.csv		423.96 KB	text/csv
lambda_species_colonycount_SSA.csv		30.09 KB	text/csv
lncount_colonycount_SSA.csv		813.79 KB	text/csv
stage_lambda_adj_colonycount_SSA.csv		32.45 KB	text/csv
R code and documentation for data curation and analysis.docx		39.96 KB	application/vnd.openxmlformats-officedocument.wordprocessingml.document

Related External Resources

Type: Related Primary Publication

Straw, B.R, J. A. Martin, J.D. Reichard, and B.E. Reichert, editors. Analytical Assessments in Support of the U.S. Fish and Wildlife Service 3-Bat Species Status Assessment. Cooperator Report prepared in cooperation with the U.S. Geological Survey, United States Fish and Wildlife Service and Bat Conservation International. https://doi.org/10.7944/P9B4RWEU	https://doi.org/10.7944/P9B4RWEU

Purpose

Our objective was to provide annual estimates of the population growth rate (lambda) while taking into account impacts caused by White-nose Syndrome (WNS) and variation occurring among sites and years. Estimates of lambda can be used a demographic projection tool developed for bat populations (Wiens et al. 2021) and combined with other variables to gain further inference of population trends.

In Support of the U.S. Fish and Wildlife Service 3-Bat Species Status Assessment: Winter Colony Count Analysis

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