Quantifying detection probability of American woodcock (Scolopax minor) on transects sampled with thermal cameras

Abstract Developing effective monitoring techniques for sensitive wildlife populations is essential for improving conservation outcomes. The American woodcock (Scolopax minor; hereafter woodcock) is an upland migratory game bird traditionally surveyed by documenting displaying males in spring. Surve...

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Main Authors: Luke F. Gray, Darin J. McNeil, Jeffery T. Larkin, Halie A. Parker, Dakotah Shaffer, Jeffery L. Larkin
Format: Article
Language:English
Published: Wiley 2023-06-01
Series:Wildlife Society Bulletin
Subjects:
Online Access:https://doi.org/10.1002/wsb.1417
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author Luke F. Gray
Darin J. McNeil
Jeffery T. Larkin
Halie A. Parker
Dakotah Shaffer
Jeffery L. Larkin
author_facet Luke F. Gray
Darin J. McNeil
Jeffery T. Larkin
Halie A. Parker
Dakotah Shaffer
Jeffery L. Larkin
author_sort Luke F. Gray
collection DOAJ
description Abstract Developing effective monitoring techniques for sensitive wildlife populations is essential for improving conservation outcomes. The American woodcock (Scolopax minor; hereafter woodcock) is an upland migratory game bird traditionally surveyed by documenting displaying males in spring. Surveys of displaying males are limiting in a variety of important ways such as brief detection window and male‐centric observations. Thermal technology may overcome limitations of traditional monitoring techniques by increasing detections of non‐singing woodcock, however, the efficacy of thermal imaging for detecting woodcock remains unknown. To quantify woodcock detection probability using thermal imaging, we deployed and searched for heat‐emitting woodcock mounts along transects within early‐successional habitats in central Pennsylvania during 2020. We deployed 110 woodcock mounts and successfully detected 63 (57.2%). Detection rate declined as a function of increasing vegetation density and distance from transect. Although detection probability of woodcock was imperfect, thermal cameras may provide a solution for researchers aiming to assess presence or density of woodcock when coupled with analytical methods that account for imperfect detection.
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spelling doaj.art-204d31cfe27b4e4ea0d6b217c944746d2023-08-21T21:45:19ZengWileyWildlife Society Bulletin2328-55402023-06-01472n/an/a10.1002/wsb.1417Quantifying detection probability of American woodcock (Scolopax minor) on transects sampled with thermal camerasLuke F. Gray0Darin J. McNeil1Jeffery T. Larkin2Halie A. Parker3Dakotah Shaffer4Jeffery L. Larkin5Department of Biology Indiana University of Pennsylvania Weyandt Hall, Room 114 Indiana PA 15701 USADepartment of Forestry and Natural Resources University of Kentucky Lexington KY 40508 USADepartment of Biology Indiana University of Pennsylvania Weyandt Hall, Room 114 Indiana PA 15701 USADepartment of Biology Indiana University of Pennsylvania Weyandt Hall, Room 114 Indiana PA 15701 USADepartment of Biology Indiana University of Pennsylvania Weyandt Hall, Room 114 Indiana PA 15701 USADepartment of Biology Indiana University of Pennsylvania Weyandt Hall, Room 114 Indiana PA 15701 USAAbstract Developing effective monitoring techniques for sensitive wildlife populations is essential for improving conservation outcomes. The American woodcock (Scolopax minor; hereafter woodcock) is an upland migratory game bird traditionally surveyed by documenting displaying males in spring. Surveys of displaying males are limiting in a variety of important ways such as brief detection window and male‐centric observations. Thermal technology may overcome limitations of traditional monitoring techniques by increasing detections of non‐singing woodcock, however, the efficacy of thermal imaging for detecting woodcock remains unknown. To quantify woodcock detection probability using thermal imaging, we deployed and searched for heat‐emitting woodcock mounts along transects within early‐successional habitats in central Pennsylvania during 2020. We deployed 110 woodcock mounts and successfully detected 63 (57.2%). Detection rate declined as a function of increasing vegetation density and distance from transect. Although detection probability of woodcock was imperfect, thermal cameras may provide a solution for researchers aiming to assess presence or density of woodcock when coupled with analytical methods that account for imperfect detection.https://doi.org/10.1002/wsb.1417American woodcockdetection probabilityold fieldScolopax minorthermaltimber harvest
spellingShingle Luke F. Gray
Darin J. McNeil
Jeffery T. Larkin
Halie A. Parker
Dakotah Shaffer
Jeffery L. Larkin
Quantifying detection probability of American woodcock (Scolopax minor) on transects sampled with thermal cameras
Wildlife Society Bulletin
American woodcock
detection probability
old field
Scolopax minor
thermal
timber harvest
title Quantifying detection probability of American woodcock (Scolopax minor) on transects sampled with thermal cameras
title_full Quantifying detection probability of American woodcock (Scolopax minor) on transects sampled with thermal cameras
title_fullStr Quantifying detection probability of American woodcock (Scolopax minor) on transects sampled with thermal cameras
title_full_unstemmed Quantifying detection probability of American woodcock (Scolopax minor) on transects sampled with thermal cameras
title_short Quantifying detection probability of American woodcock (Scolopax minor) on transects sampled with thermal cameras
title_sort quantifying detection probability of american woodcock scolopax minor on transects sampled with thermal cameras
topic American woodcock
detection probability
old field
Scolopax minor
thermal
timber harvest
url https://doi.org/10.1002/wsb.1417
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