Habitat occupancy by breeding Pied-billed and Horned Grebes in Prairie Canada: correlates of pond use and breeding success

Incorporating information about habitat use and success of breeding birds contributes to a more complete understanding of their ecology and distribution, and can also inform management strategies for species of conservation concern. We used occupancy data that accounted for imperfect detection from...

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Autores principales:	Daniel D. Routhier, Kevin W. Dufour, Mark T. Bidwell, Robert Clark
Formato:	article
Lenguaje:	EN
Publicado:	Resilience Alliance 2020
Materias:	detection probability habitat use occupancy probability <span style="font-style: normal">podiceps auritus podilymbus podiceps</span> productivity Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/2d6b064b55064c0ba111c064a7e35b46
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spelling	oai:doaj.org-article:2d6b064b55064c0ba111c064a7e35b462021-12-02T14:14:42ZHabitat occupancy by breeding Pied-billed and Horned Grebes in Prairie Canada: correlates of pond use and breeding success1712-6568https://doaj.org/article/2d6b064b55064c0ba111c064a7e35b462020-12-01T00:00:00Zhttps://www.ace-eco.org/vol15/iss2/art3/https://doaj.org/toc/1712-6568Incorporating information about habitat use and success of breeding birds contributes to a more complete understanding of their ecology and distribution, and can also inform management strategies for species of conservation concern. We used occupancy data that accounted for imperfect detection from a two-year field study of two territorial waterbird species in southcentral Saskatchewan (n = 172 ponds on seven study sites) to explore correlates of pond use and breeding success. In Pied-billed (Podilymbus podiceps) and Horned (Podiceps auritus) Grebes, breeding habitat occupancy corresponded most closely to pond-specific factors rather than those operating at spatial scales beyond the local wetland basin. Pied-billed Grebes were more likely to occupy wetlands that were larger, had greater shoreline complexity, and had less cropland in the adjacent uplands whereas Horned Grebes were more likely to occupy wetlands with less emergent vegetation. These distinct microhabitat preferences could serve to limit interspecific competition. While there was no observable difference in pond occupancy rates between low and high wetland density landscapes, the latter areas contribute disproportionately more breeding habitat for grebes. Using naïve occupancy estimates, breeding success was similar for Horned (0.75, SE = 0.06) and Pied-billed (0.67, SE = 0.07) Grebes. Ongoing conservation initiatives that protect and restore wetland habitat in areas of the prairie and parkland ecoregions with high densities of semipermanent and permanent wetlands should improve long-term habitat security for breeding grebes, including Horned Grebes.Daniel D. RouthierKevin W. DufourMark T. BidwellRobert ClarkResilience Alliancearticledetection probabilityhabitat useoccupancy probability<span style="font-style: normal">podiceps aurituspodilymbus podiceps</span>productivityPlant cultureSB1-1110Environmental sciencesGE1-350Plant ecologyQK900-989ENAvian Conservation and Ecology, Vol 15, Iss 2, p 3 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	detection probability habitat use occupancy probability <span style="font-style: normal">podiceps auritus podilymbus podiceps</span> productivity Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
spellingShingle	detection probability habitat use occupancy probability <span style="font-style: normal">podiceps auritus podilymbus podiceps</span> productivity Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989 Daniel D. Routhier Kevin W. Dufour Mark T. Bidwell Robert Clark Habitat occupancy by breeding Pied-billed and Horned Grebes in Prairie Canada: correlates of pond use and breeding success
description	Incorporating information about habitat use and success of breeding birds contributes to a more complete understanding of their ecology and distribution, and can also inform management strategies for species of conservation concern. We used occupancy data that accounted for imperfect detection from a two-year field study of two territorial waterbird species in southcentral Saskatchewan (n = 172 ponds on seven study sites) to explore correlates of pond use and breeding success. In Pied-billed (Podilymbus podiceps) and Horned (Podiceps auritus) Grebes, breeding habitat occupancy corresponded most closely to pond-specific factors rather than those operating at spatial scales beyond the local wetland basin. Pied-billed Grebes were more likely to occupy wetlands that were larger, had greater shoreline complexity, and had less cropland in the adjacent uplands whereas Horned Grebes were more likely to occupy wetlands with less emergent vegetation. These distinct microhabitat preferences could serve to limit interspecific competition. While there was no observable difference in pond occupancy rates between low and high wetland density landscapes, the latter areas contribute disproportionately more breeding habitat for grebes. Using naïve occupancy estimates, breeding success was similar for Horned (0.75, SE = 0.06) and Pied-billed (0.67, SE = 0.07) Grebes. Ongoing conservation initiatives that protect and restore wetland habitat in areas of the prairie and parkland ecoregions with high densities of semipermanent and permanent wetlands should improve long-term habitat security for breeding grebes, including Horned Grebes.
format	article
author	Daniel D. Routhier Kevin W. Dufour Mark T. Bidwell Robert Clark
author_facet	Daniel D. Routhier Kevin W. Dufour Mark T. Bidwell Robert Clark
author_sort	Daniel D. Routhier
title	Habitat occupancy by breeding Pied-billed and Horned Grebes in Prairie Canada: correlates of pond use and breeding success
title_short	Habitat occupancy by breeding Pied-billed and Horned Grebes in Prairie Canada: correlates of pond use and breeding success
title_full	Habitat occupancy by breeding Pied-billed and Horned Grebes in Prairie Canada: correlates of pond use and breeding success
title_fullStr	Habitat occupancy by breeding Pied-billed and Horned Grebes in Prairie Canada: correlates of pond use and breeding success
title_full_unstemmed	Habitat occupancy by breeding Pied-billed and Horned Grebes in Prairie Canada: correlates of pond use and breeding success
title_sort	habitat occupancy by breeding pied-billed and horned grebes in prairie canada: correlates of pond use and breeding success
publisher	Resilience Alliance
publishDate	2020
url	https://doaj.org/article/2d6b064b55064c0ba111c064a7e35b46
work_keys_str_mv	AT danieldrouthier habitatoccupancybybreedingpiedbilledandhornedgrebesinprairiecanadacorrelatesofponduseandbreedingsuccess AT kevinwdufour habitatoccupancybybreedingpiedbilledandhornedgrebesinprairiecanadacorrelatesofponduseandbreedingsuccess AT marktbidwell habitatoccupancybybreedingpiedbilledandhornedgrebesinprairiecanadacorrelatesofponduseandbreedingsuccess AT robertclark habitatoccupancybybreedingpiedbilledandhornedgrebesinprairiecanadacorrelatesofponduseandbreedingsuccess
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Habitat occupancy by breeding Pied-billed and Horned Grebes in Prairie Canada: correlates of pond use and breeding success

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