Breeding bird response to adaptive multi‐paddock and continuous grazing practices in Southeastern United States

Abstract Grassland bird populations are declining steeply, reflecting the degradation and loss of native grassland habitats. To assess how grazing management affects declining grassland bird populations, we compared breeding avifaunal communities in adaptive multi‐paddock (AMP) grazed and continuous...

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Main Authors: Michael J. McGraw, Steven I. Apfelbaum, Ry Thompson, Fugui Wang, Michael A. Szuter, Richard Teague, Peter Byck, Russ Conser
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:Ecosphere
Subjects:
Online Access:https://doi.org/10.1002/ecs2.70107
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author Michael J. McGraw
Steven I. Apfelbaum
Ry Thompson
Fugui Wang
Michael A. Szuter
Richard Teague
Peter Byck
Russ Conser
author_facet Michael J. McGraw
Steven I. Apfelbaum
Ry Thompson
Fugui Wang
Michael A. Szuter
Richard Teague
Peter Byck
Russ Conser
author_sort Michael J. McGraw
collection DOAJ
description Abstract Grassland bird populations are declining steeply, reflecting the degradation and loss of native grassland habitats. To assess how grazing management affects declining grassland bird populations, we compared breeding avifaunal communities in adaptive multi‐paddock (AMP) grazed and continuously grazed (CG) pastures in the Southeastern United States. AMP grazing involves alternating very short grazing periods at high animal densities with prolonged recovery periods across many small paddocks. Both the AMP and CG paddocks attracted obligate grassland birds during the breeding season; however, AMP‐grazed paddocks supported significantly higher detection of four obligate grassland breeding bird species. We used distance sampling techniques to account for differences in detectability for each species. The resulting densities for the grassland guild and Eastern Meadowlark as a species both revealed significantly higher densities within the AMP versus CG paddocks. Despite significantly more unadjusted detections of confirmed breeding ecotonal species, such as Blue Grosbeak, Eastern Bluebird, Brown Thrasher, Yellow‐breasted Chat, Eastern Towhee, Loggerhead Shrike, and Field Sparrow in AMP versus CG paddocks, no significant difference was found in the ecotonal guild after adjusting densities using effective detection radii. The CG paddocks supported fewer obligate grassland and ecotonal birds, with some exceptions (e.g., higher adjusted density of Eastern Bluebirds in CG) but supported comparable overall bird species richness. AMP grazing practices offer a viable strategy for increasing the diversity and abundance of obligate grassland and ecotonal breeding birds within existing cattle‐grazed landscapes in the Southeastern United States.
format Article
id doaj-art-8b8277ec77584e658a51d4180a091e46
institution Kabale University
issn 2150-8925
language English
publishDate 2024-12-01
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series Ecosphere
spelling doaj-art-8b8277ec77584e658a51d4180a091e462025-01-27T14:51:33ZengWileyEcosphere2150-89252024-12-011512n/an/a10.1002/ecs2.70107Breeding bird response to adaptive multi‐paddock and continuous grazing practices in Southeastern United StatesMichael J. McGraw0Steven I. Apfelbaum1Ry Thompson2Fugui Wang3Michael A. Szuter4Richard Teague5Peter Byck6Russ Conser7Resource Environmental Solutions Bellaire Texas USAApplied Ecological Institute, Inc. Juda Wisconsin USAResource Environmental Solutions Bellaire Texas USAAgoro Carbon Alliance Tampa Florida USAResource Environmental Solutions Bellaire Texas USATexas A&M AgriLife Research Center Vernon Texas USASchool of Sustainability, Arizona State University Tempe Arizona USAStandard Soil Fulshear Texas USAAbstract Grassland bird populations are declining steeply, reflecting the degradation and loss of native grassland habitats. To assess how grazing management affects declining grassland bird populations, we compared breeding avifaunal communities in adaptive multi‐paddock (AMP) grazed and continuously grazed (CG) pastures in the Southeastern United States. AMP grazing involves alternating very short grazing periods at high animal densities with prolonged recovery periods across many small paddocks. Both the AMP and CG paddocks attracted obligate grassland birds during the breeding season; however, AMP‐grazed paddocks supported significantly higher detection of four obligate grassland breeding bird species. We used distance sampling techniques to account for differences in detectability for each species. The resulting densities for the grassland guild and Eastern Meadowlark as a species both revealed significantly higher densities within the AMP versus CG paddocks. Despite significantly more unadjusted detections of confirmed breeding ecotonal species, such as Blue Grosbeak, Eastern Bluebird, Brown Thrasher, Yellow‐breasted Chat, Eastern Towhee, Loggerhead Shrike, and Field Sparrow in AMP versus CG paddocks, no significant difference was found in the ecotonal guild after adjusting densities using effective detection radii. The CG paddocks supported fewer obligate grassland and ecotonal birds, with some exceptions (e.g., higher adjusted density of Eastern Bluebirds in CG) but supported comparable overall bird species richness. AMP grazing practices offer a viable strategy for increasing the diversity and abundance of obligate grassland and ecotonal breeding birds within existing cattle‐grazed landscapes in the Southeastern United States.https://doi.org/10.1002/ecs2.70107AMP grazingbiodiversitybird conservationbreeding bird densitygrasslandgrazing practice
spellingShingle Michael J. McGraw
Steven I. Apfelbaum
Ry Thompson
Fugui Wang
Michael A. Szuter
Richard Teague
Peter Byck
Russ Conser
Breeding bird response to adaptive multi‐paddock and continuous grazing practices in Southeastern United States
Ecosphere
AMP grazing
biodiversity
bird conservation
breeding bird density
grassland
grazing practice
title Breeding bird response to adaptive multi‐paddock and continuous grazing practices in Southeastern United States
title_full Breeding bird response to adaptive multi‐paddock and continuous grazing practices in Southeastern United States
title_fullStr Breeding bird response to adaptive multi‐paddock and continuous grazing practices in Southeastern United States
title_full_unstemmed Breeding bird response to adaptive multi‐paddock and continuous grazing practices in Southeastern United States
title_short Breeding bird response to adaptive multi‐paddock and continuous grazing practices in Southeastern United States
title_sort breeding bird response to adaptive multi paddock and continuous grazing practices in southeastern united states
topic AMP grazing
biodiversity
bird conservation
breeding bird density
grassland
grazing practice
url https://doi.org/10.1002/ecs2.70107
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