Sampling Methods For Bats
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Sampling Methods For Bats
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Author : Donald W. Thomas
language : en
Publisher:
Release Date : 1989
Sampling Methods For Bats written by Donald W. Thomas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Bats categories.
Sampling Methods For Bats
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Author : Donald W. Thomas
language : en
Publisher:
Release Date : 1989
Sampling Methods For Bats written by Donald W. Thomas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Bats categories.
Sampling Methods For Bats
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Author : U.S. Dept. of Agriculture. Forest Service
language : en
Publisher:
Release Date : 1989
Sampling Methods For Bats written by U.S. Dept. of Agriculture. Forest Service and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Efficacy Of Sampling Method And Implementation Strategy On Detecting Species Richness And Activity Levels Of Bats In Western Maryland
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Author : Aimee N. Haskew
language : en
Publisher:
Release Date : 2009
Efficacy Of Sampling Method And Implementation Strategy On Detecting Species Richness And Activity Levels Of Bats In Western Maryland written by Aimee N. Haskew and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Bats categories.
Sampling Rare Or Elusive Species
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Author : William Thompson
language : en
Publisher: Island Press
Release Date : 2013-04-10
Sampling Rare Or Elusive Species written by William Thompson and has been published by Island Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-10 with Nature categories.
Information regarding population status and abundance of rare species plays a key role in resource management decisions. Ideally, data should be collected using statistically sound sampling methods, but by their very nature, rare or elusive species pose a difficult sampling challenge. Sampling Rare or Elusive Species describes the latest sampling designs and survey methods for reliably estimating occupancy, abundance, and other population parameters of rare, elusive, or otherwise hard-to-detect plants and animals. It offers a mixture of theory and application, with actual examples from terrestrial, aquatic, and marine habitats around the world. Sampling Rare or Elusive Species is the first volume devoted entirely to this topic and provides natural resource professionals with a suite of innovative approaches to gathering population status and trend data. It represents an invaluable reference for natural resource professionals around the world, including fish and wildlife biologists, ecologists, biometricians, natural resource managers, and all others whose work or research involves rare or elusive species.
Practical Sampling Techniques Second Edition
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Author : Ranjan K. Som
language : en
Publisher: CRC Press
Release Date : 1995-09-13
Practical Sampling Techniques Second Edition written by Ranjan K. Som and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-09-13 with Mathematics categories.
Second Edition offers a comprehensive presentation of scientific sampling principles and shows how to design a sample survey and analyze the resulting data. Demonstrates the validity of theorems and statements without resorting to detailed proofs.
Ecological And Behavioral Methods For The Study Of Bats
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Author : Thomas H. Kunz
language : en
Publisher:
Release Date : 2009-11-09
Ecological And Behavioral Methods For The Study Of Bats written by Thomas H. Kunz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-09 with Nature categories.
Thomas H. Kunz is a professor of biology and director of the Center for Ecology and Conservation Biology at Boston University. He is the editor of Bat Biology and Conservation and Bat Ecology. Stuart Parsons is a senior lecturer in biological sciences at the University of Auckland, New Zealand -- Jacket.
Patterns Of Bat Activity And Effective Acoustic Sampling
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Author : Samuel Lawrence Skalak
language : en
Publisher:
Release Date : 2010
Patterns Of Bat Activity And Effective Acoustic Sampling written by Samuel Lawrence Skalak and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Bat sounds categories.
The results of my study are useful to help future efforts to compare bat activity between sites and to inventory species richness. Understanding patterns of bat activity and species detection rates may improve future research design and monitoring programs. Further, the analytical methods that I used to assess activity and species richness are broadly applicable to a range of survey methods and taxa.
Monitoring Trends In Bat Populations Of The United States And Territories
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Author : Thomas J. O'Shea
language : en
Publisher:
Release Date : 2003
Monitoring Trends In Bat Populations Of The United States And Territories written by Thomas J. O'Shea and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Bats categories.
Development Of A Bat Guano And Acoustic Sampling Testing Protocol To Identify Species Occupying Virginia Department Of Transportation Bridges
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Author : Hila Taylor
language : en
Publisher:
Release Date : 2022
Development Of A Bat Guano And Acoustic Sampling Testing Protocol To Identify Species Occupying Virginia Department Of Transportation Bridges written by Hila Taylor and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Gray bat categories.
Over half of Virginia’s extant bat species, including six imperiled bat species, have been documented as using bridges as day or night roosts. To prevent or minimize harm to these species, the Virginia Department of Transportation (VDOT) performs surveys to detect bat use in transportation structures when essential infrastructure maintenance must occur. The current indicators used by VDOT to inspect bridges for bat use include staining, guano piles, and the presence of live bats. Notwithstanding, without trained personnel, it can be difficult to positively identify species use. Without the ability to confidently identify roosting species, regulatory agencies cannot discount transportation structure use by a sensitive species, such as the federally endangered gray bat (Myotis grisescens). Most acoustic detection survey methods allow for the identification of bat species active in an area but cannot confirm that a species is using a transportation structure as a day or night roost with certainty. Because acoustic detection methods are relatively inexpensive and not labor intensive, they can be used to monitor areas for an extended period to determine the likelihood of bat presence and provide region-wide predictive modeling to assess potential risk. However, acoustic monitoring alone cannot confirm roost use, so a subsequent, genetics-based approach could confirm which species have roosted in a structure. In this project, we tested a combined approach using intensive acoustics in conjunction with DNA barcoding of guano found at the sampled bridges to detect the species present in the areas around 40 bridges in southwestern Virginia’s Bristol District. From March to November 2019, we observed bat activity with acoustic sampling throughout the Clinch, Powell, Holston, Big Sandy, and New River watersheds. Gray bat activity at the bridges was correlated with proximity to the known summer maternity roost in the Bristol area and mean cave density in the surrounding landscape. Combined with pilot acoustic data from 2018 and a partial continuation in 2020, we observed high year-to-year variations in gray bat activity. We found that a long acoustic sampling duration is necessary to discern the monthly presence and relative abundance patterns of imperiled bat species (focusing on the six imperiled species documented as using bridges) across the year from emergence to the initiation of hibernation. The spatiotemporal patterns that we observed can help VDOT assess the risk to gray bats and other bat species from transportation structure management activities. In total, 283 guano samples were collected from 29 bridges for subsequent DNA analysis. Although 245 of the samples were amplified, only 77 (27% of the collected samples) were of sufficient quality to find a species match. Nine bridges had guano with DNA that matched big brown bats (Eptesicus fuscus), 12 bridges had guano matching gray bats, and three bridges had guano matching the federally threatened northern long-eared bat (Myotis septentrionalis). The bat species at all the sites with guano-derived DNA were also recorded acoustically. For guano DNA analysis, additional work-refining techniques will be needed; however, as proof of concept, the combined approach to bat sampling that we developed may aid VDOT managers in assessing bat use of bridges, which is particularly valuable in areas such as the New River drainage into which the gray bat population is newly expanding.