Northern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.

Resource selection is a key component in understanding the ecological processes underlying population dynamics, particularly for species such as northern bobwhite (Colinus virginianus), which are declining across their range in North America. There is a growing body of literature quantifying breedin...

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Autores principales:	Alisha R Mosloff, Mitch D Weegman, Frank R Thompson, Thomas R Thompson
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2224403ea52a4e3392eb4299c798d08a
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spelling	oai:doaj.org-article:2224403ea52a4e3392eb4299c798d08a2021-12-02T20:17:51ZNorthern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.1932-620310.1371/journal.pone.0255298https://doaj.org/article/2224403ea52a4e3392eb4299c798d08a2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0255298https://doaj.org/toc/1932-6203Resource selection is a key component in understanding the ecological processes underlying population dynamics, particularly for species such as northern bobwhite (Colinus virginianus), which are declining across their range in North America. There is a growing body of literature quantifying breeding season resource selection in bobwhite; however, winter information is particularly sparse despite it being a season of substantial mortality. Information regarding winter resource selection is necessary to quantify the extent to which resource requirements are driving population change. We modeled bobwhite fall and winter resource selection as a function of vegetation structure, composition, and management from traditionally (intensively) managed sites and remnant (extensively managed) grassland sites in southwest Missouri using multinomial logit discrete choice models in a Bayesian framework. We captured 158 bobwhite from 67 unique coveys and attached transmitters to 119 individuals. We created 671 choice sets comprised of 1 used location and 3 available locations. Bobwhite selected for locations which were closer to trees during the winter; the relative probability of selection decreased from 0.45 (85% Credible Interval [CRI]: 0.17-0.74) to 0.00 (85% CRI: 0.00-0.002) as distance to trees ranged from 0-313 m. The relative probability of selection increased from near 0 (85% CRI: 0.00-0.01) to 0.33 (85% CRI: 0.09-0.56) and from near 0 (85% CRI: 0.00-0.00) to 0.51 (85% CRI: 0.36-0.71) as visual obstruction increased from 0 to 100% during fall and winter, respectively. Bobwhite also selected locations with more woody stems; the relative probability of selection increased from near 0.00 (85% CRI: 0.00-0.002) to 0.30 (85% CRI: 0.17-0.46) and near 0.00 (85% CRI: 0.00-0.001) to 0.35 (85% CRI: 0.22-0.55) as stem count ranged from 0 to 1000 stems in fall and winter, respectively. The relative probability of selection also decreased from 0.35 (85% CRI: 0.20-0.54) to nearly 0 (85% CRI: 0.00-0.001) as percent grass varied from 0 to 100% in fall. We suggest that dense shrub cover in close proximity to native grasslands is an important component of fall and winter cover given bobwhite selection of shrub cover and previously reported survival benefits in fall and winter.Alisha R MosloffMitch D WeegmanFrank R ThompsonThomas R ThompsonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0255298 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alisha R Mosloff Mitch D Weegman Frank R Thompson Thomas R Thompson Northern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.
description	Resource selection is a key component in understanding the ecological processes underlying population dynamics, particularly for species such as northern bobwhite (Colinus virginianus), which are declining across their range in North America. There is a growing body of literature quantifying breeding season resource selection in bobwhite; however, winter information is particularly sparse despite it being a season of substantial mortality. Information regarding winter resource selection is necessary to quantify the extent to which resource requirements are driving population change. We modeled bobwhite fall and winter resource selection as a function of vegetation structure, composition, and management from traditionally (intensively) managed sites and remnant (extensively managed) grassland sites in southwest Missouri using multinomial logit discrete choice models in a Bayesian framework. We captured 158 bobwhite from 67 unique coveys and attached transmitters to 119 individuals. We created 671 choice sets comprised of 1 used location and 3 available locations. Bobwhite selected for locations which were closer to trees during the winter; the relative probability of selection decreased from 0.45 (85% Credible Interval [CRI]: 0.17-0.74) to 0.00 (85% CRI: 0.00-0.002) as distance to trees ranged from 0-313 m. The relative probability of selection increased from near 0 (85% CRI: 0.00-0.01) to 0.33 (85% CRI: 0.09-0.56) and from near 0 (85% CRI: 0.00-0.00) to 0.51 (85% CRI: 0.36-0.71) as visual obstruction increased from 0 to 100% during fall and winter, respectively. Bobwhite also selected locations with more woody stems; the relative probability of selection increased from near 0.00 (85% CRI: 0.00-0.002) to 0.30 (85% CRI: 0.17-0.46) and near 0.00 (85% CRI: 0.00-0.001) to 0.35 (85% CRI: 0.22-0.55) as stem count ranged from 0 to 1000 stems in fall and winter, respectively. The relative probability of selection also decreased from 0.35 (85% CRI: 0.20-0.54) to nearly 0 (85% CRI: 0.00-0.001) as percent grass varied from 0 to 100% in fall. We suggest that dense shrub cover in close proximity to native grasslands is an important component of fall and winter cover given bobwhite selection of shrub cover and previously reported survival benefits in fall and winter.
format	article
author	Alisha R Mosloff Mitch D Weegman Frank R Thompson Thomas R Thompson
author_facet	Alisha R Mosloff Mitch D Weegman Frank R Thompson Thomas R Thompson
author_sort	Alisha R Mosloff
title	Northern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.
title_short	Northern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.
title_full	Northern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.
title_fullStr	Northern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.
title_full_unstemmed	Northern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.
title_sort	northern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/2224403ea52a4e3392eb4299c798d08a
work_keys_str_mv	AT alisharmosloff northernbobwhiteselectforshrubbythicketsinterspersedingrasslandsduringfallandwinter AT mitchdweegman northernbobwhiteselectforshrubbythicketsinterspersedingrasslandsduringfallandwinter AT frankrthompson northernbobwhiteselectforshrubbythicketsinterspersedingrasslandsduringfallandwinter AT thomasrthompson northernbobwhiteselectforshrubbythicketsinterspersedingrasslandsduringfallandwinter
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Northern bobwhite select for shrubby thickets interspersed in grasslands during fall and winter.

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