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Incubation recess behaviors influence nest survival of Wild Turkeys

In ground nesting upland birds, reproductive activities contribute to elevated predation risk, so females presumably use multiple strategies to ensure nest success. Identification of drivers reducing predation risk has primarily focused on evaluating vegetative conditions at nest sites, but behavior...

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Autores principales: Bakner, Nicholas W., Schofield, Landon R., Cedotal, Cody, Chamberlain, Michael J., Collier, Bret A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6953688/
https://www.ncbi.nlm.nih.gov/pubmed/31938503
http://dx.doi.org/10.1002/ece3.5843
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author Bakner, Nicholas W.
Schofield, Landon R.
Cedotal, Cody
Chamberlain, Michael J.
Collier, Bret A.
author_facet Bakner, Nicholas W.
Schofield, Landon R.
Cedotal, Cody
Chamberlain, Michael J.
Collier, Bret A.
author_sort Bakner, Nicholas W.
collection PubMed
description In ground nesting upland birds, reproductive activities contribute to elevated predation risk, so females presumably use multiple strategies to ensure nest success. Identification of drivers reducing predation risk has primarily focused on evaluating vegetative conditions at nest sites, but behavioral decisions manifested through movements during incubation may be additional drivers of nest survival. However, our understanding of how movements during incubation impact nest survival is limited for most ground nesting birds. Using GPS data collected from female Eastern Wild Turkeys (n = 206), we evaluated nest survival as it relates to movement behaviors during incubation, including recess frequency, distance traveled during recesses, and habitat selection during recess movements. We identified 9,361 movements off nests and 6,529 recess events based on approximately 62,065 hr of incubation data, and estimated mean nest attentiveness of 84.0%. The numbers of recesses taken daily were variable across females (range: 1‒7). Nest survival modeling indicated that increased cumulative distance moved during recesses each day was the primary driver of positive daily nest survival. Our results suggest behavioral decisions are influencing trade‐offs between nest survival and adult female survival during incubation to reduce predation risk, specifically through adjustments to distances traveled during recesses.
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spelling pubmed-69536882020-01-14 Incubation recess behaviors influence nest survival of Wild Turkeys Bakner, Nicholas W. Schofield, Landon R. Cedotal, Cody Chamberlain, Michael J. Collier, Bret A. Ecol Evol Original Research In ground nesting upland birds, reproductive activities contribute to elevated predation risk, so females presumably use multiple strategies to ensure nest success. Identification of drivers reducing predation risk has primarily focused on evaluating vegetative conditions at nest sites, but behavioral decisions manifested through movements during incubation may be additional drivers of nest survival. However, our understanding of how movements during incubation impact nest survival is limited for most ground nesting birds. Using GPS data collected from female Eastern Wild Turkeys (n = 206), we evaluated nest survival as it relates to movement behaviors during incubation, including recess frequency, distance traveled during recesses, and habitat selection during recess movements. We identified 9,361 movements off nests and 6,529 recess events based on approximately 62,065 hr of incubation data, and estimated mean nest attentiveness of 84.0%. The numbers of recesses taken daily were variable across females (range: 1‒7). Nest survival modeling indicated that increased cumulative distance moved during recesses each day was the primary driver of positive daily nest survival. Our results suggest behavioral decisions are influencing trade‐offs between nest survival and adult female survival during incubation to reduce predation risk, specifically through adjustments to distances traveled during recesses. John Wiley and Sons Inc. 2019-11-21 /pmc/articles/PMC6953688/ /pubmed/31938503 http://dx.doi.org/10.1002/ece3.5843 Text en © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Bakner, Nicholas W.
Schofield, Landon R.
Cedotal, Cody
Chamberlain, Michael J.
Collier, Bret A.
Incubation recess behaviors influence nest survival of Wild Turkeys
title Incubation recess behaviors influence nest survival of Wild Turkeys
title_full Incubation recess behaviors influence nest survival of Wild Turkeys
title_fullStr Incubation recess behaviors influence nest survival of Wild Turkeys
title_full_unstemmed Incubation recess behaviors influence nest survival of Wild Turkeys
title_short Incubation recess behaviors influence nest survival of Wild Turkeys
title_sort incubation recess behaviors influence nest survival of wild turkeys
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6953688/
https://www.ncbi.nlm.nih.gov/pubmed/31938503
http://dx.doi.org/10.1002/ece3.5843
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