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North American Bat Monitoring Program (NABat)
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Core Team & Supporters Susan Loeb, USFS-SRS Jeremy Coleman, USFWS Laura Ellison, USGS Tom Rodhouse, NPS Tom Ingersoll, DoD Cori Lausen, WCS Canada Wayne Thogmartin, USGS Kathi Irvine, USGS John Sauer, USGS Jonathan Reichard, USFWS
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The Need to Monitor 1)Bat Banding Program (BBP) – US Biological Survey/USFWS
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The Need to Monitor 1)Bat Banding Program (BBP) US Biological Survey/USFWS 2) Endangered Species Monitoring
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The Need to Monitor 1) Bat Banding Program (BBP) US Biological Survey/USFWS 2) Endangered Species Monitoring 3) Estes Park
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National State, Federal, Tribal Response Plan
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National Plan Working Groups
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Goal 1: Develop and validate rapid-assessment monitoring plans to determine differences in susceptibility among species, and identify which species are most vulnerable to extinction due to WNS.
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Loeb & Winters 2013 Humphries et al. 2002 Indiana Bat Summer Distribution Little Brown Bat Winter Distribution
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North American Bat Monitoring Program -- NABat Vision: A coordinated effort that promotes effective decision-making and long-term viability of NA bats Mission: Provide architecture for coordinated bat monitoring to support local, regional and range-wide inferences about trends in bat populations and abundances
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North American Bat Monitoring Program -- NABat Vision: A coordinated effort that promotes effective decision-making and long-term viability of NA bats Mission: Provide architecture for coordinated bat monitoring to support local, regional and range-wide inferences about trends in bat distributions and abundances
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NABat Fundamental Question: How do trends in NA bat distributions & abundances vary over geographic extents and time periods in relation to WNS, wind energy, CC & conservation actions? Application: Evaluation of extinction risk and population status at local and regional scales to support conservation planning
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NABat Fundamental Question: How do trends in NA bat distributions & abundances vary over geographic extents and time periods in relation to WNS, wind energy, CC & conservation actions? Application: Evaluation of extinction risk and population status at local and regional scales to support conservation planning
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The Process Collaborative International Series of 4 workshop
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Targeted Species 47 Species – Common to US, Canada, Mexico
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Monitoring Methods Acoustic Surveys – Mobile Transects – Stationary Points Colony Counts – Hibernacula – Maternity Colonies
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Sampling Design- 10 x 10 km grid
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Sampling Design Generalized Randomized Tessellation Stratified (GRTS) Sample Spatially balanced approach Flexible – Grid cells can be dropped for logistical reasons – Grid cells assigned weights or inclusion probabilities – Can include some samples outside design
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Sampling Design Any subset of grid cells is also random and balanced Can “over-sample” DoD lands
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Response Design
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Respose Design-Acoustics --25-48 km transect -2 nights --2-4 point surveys -4 nights
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Response Design-Colony Counts Short-term approach – Strengthen current monitoring efforts by states – Standardized protocols & co-variates – No attempt to fit into grid Long-term approach – Use grid to search for new colonies
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Implementation
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Grid Assignment Example
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Caveats/Concerns Acoustic identification – Many models, which is correct? – Metadata – Archive original data – Robustness to false +’s and –’s? Unknown hibernacula – Particularly in western NA Better/alternate analyses?
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Data Management Bat Population Data (BPD) Project – USGS, Fort Collins – https://my.usgs.gov/bpd/ https://my.usgs.gov/bpd/
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Data Management Data Partnerships – Allow NABat access – Restrict other access
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Analysis & Products Plan General Technical Report Analyses – State, regional, and rangewide analysis – Distribution & abundance State of North American Bats Report
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