Hierarchical distance sampling reveals increased population size and broader habitat use in the endangered Bahama Oriole

The Caribbean is home to over 20 passerine species listed by the International Union for Conservation of Nature as vulnerable, endangered or critically endangered. The Bahama Oriole (Icterus northropi) is listed as critically endangered and is now restricted to Andros, a single island complex in The...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Michael G. Rowley, Richard C. Stanley, Janine M. Antalffy, Jennifer L. Christhilf, Daniel C. Stonko, Scott B. Johnson, Shelley Cant-Woodside, T Scott. Sillett, Matthew E. Fagan, Colin E. Studds, Kevin E. Omland
Formato:	article
Lenguaje:	EN
Publicado:	Resilience Alliance 2021
Materias:	bahama oriole caribbean endangered species island endemic hierarchical distance sampling <span style="font-style: normal">icterus northropi</span> Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/16762c835f6e49e9b382d48caee8ae4b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:16762c835f6e49e9b382d48caee8ae4b
record_format	dspace
spelling	oai:doaj.org-article:16762c835f6e49e9b382d48caee8ae4b2021-11-15T16:40:14ZHierarchical distance sampling reveals increased population size and broader habitat use in the endangered Bahama Oriole1712-6568https://doaj.org/article/16762c835f6e49e9b382d48caee8ae4b2021-06-01T00:00:00Zhttps://www.ace-eco.org/vol16/iss1/art5/https://doaj.org/toc/1712-6568The Caribbean is home to over 20 passerine species listed by the International Union for Conservation of Nature as vulnerable, endangered or critically endangered. The Bahama Oriole (Icterus northropi) is listed as critically endangered and is now restricted to Andros, a single island complex in The Bahamas. We investigated this species' habitat use and produced the first statistically robust estimate of population size. We conducted point counts during the Bahama Oriole's breeding season in May and June 2017, extensively surveying the northern part of North Andros over a study area covering 713 km². Hierarchical distance sampling models estimated 1269-2765 individuals within our study area, a substantially larger population on North Andros than was indicated by the previously published estimates. Earlier studies, which disproportionately sampled anthropogenic and coppice habitats, likely underestimated this species' abundance in pine forest. We found that the Bahama Oriole is widespread, most abundant in pine forest, and not dependent on developed habitats during the breeding season. These findings provide a better outlook for the species' persistence and indicate that conserving pine forest would benefit this critically endangered species. Our results also emphasize the importance of rigorously evaluating habitat use when developing conservation plans for endangered species. Systematic population counts and statistical analyses that account for detection probability are needed for endangered and vulnerable endemic birds across the Caribbean, especially in the face of increased hurricane strength and sea level rise due to climate change.Michael G. RowleyRichard C. StanleyJanine M. AntalffyJennifer L. ChristhilfDaniel C. StonkoScott B. JohnsonShelley Cant-WoodsideT Scott. SillettMatthew E. FaganColin E. StuddsKevin E. OmlandResilience Alliancearticlebahama oriolecaribbeanendangered speciesisland endemichierarchical distance sampling<span style="font-style: normal">icterus northropi</span>Plant cultureSB1-1110Environmental sciencesGE1-350Plant ecologyQK900-989ENAvian Conservation and Ecology, Vol 16, Iss 1, p 5 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bahama oriole caribbean endangered species island endemic hierarchical distance sampling <span style="font-style: normal">icterus northropi</span> Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
spellingShingle	bahama oriole caribbean endangered species island endemic hierarchical distance sampling <span style="font-style: normal">icterus northropi</span> Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989 Michael G. Rowley Richard C. Stanley Janine M. Antalffy Jennifer L. Christhilf Daniel C. Stonko Scott B. Johnson Shelley Cant-Woodside T Scott. Sillett Matthew E. Fagan Colin E. Studds Kevin E. Omland Hierarchical distance sampling reveals increased population size and broader habitat use in the endangered Bahama Oriole
description	The Caribbean is home to over 20 passerine species listed by the International Union for Conservation of Nature as vulnerable, endangered or critically endangered. The Bahama Oriole (Icterus northropi) is listed as critically endangered and is now restricted to Andros, a single island complex in The Bahamas. We investigated this species' habitat use and produced the first statistically robust estimate of population size. We conducted point counts during the Bahama Oriole's breeding season in May and June 2017, extensively surveying the northern part of North Andros over a study area covering 713 km². Hierarchical distance sampling models estimated 1269-2765 individuals within our study area, a substantially larger population on North Andros than was indicated by the previously published estimates. Earlier studies, which disproportionately sampled anthropogenic and coppice habitats, likely underestimated this species' abundance in pine forest. We found that the Bahama Oriole is widespread, most abundant in pine forest, and not dependent on developed habitats during the breeding season. These findings provide a better outlook for the species' persistence and indicate that conserving pine forest would benefit this critically endangered species. Our results also emphasize the importance of rigorously evaluating habitat use when developing conservation plans for endangered species. Systematic population counts and statistical analyses that account for detection probability are needed for endangered and vulnerable endemic birds across the Caribbean, especially in the face of increased hurricane strength and sea level rise due to climate change.
format	article
author	Michael G. Rowley Richard C. Stanley Janine M. Antalffy Jennifer L. Christhilf Daniel C. Stonko Scott B. Johnson Shelley Cant-Woodside T Scott. Sillett Matthew E. Fagan Colin E. Studds Kevin E. Omland
author_facet	Michael G. Rowley Richard C. Stanley Janine M. Antalffy Jennifer L. Christhilf Daniel C. Stonko Scott B. Johnson Shelley Cant-Woodside T Scott. Sillett Matthew E. Fagan Colin E. Studds Kevin E. Omland
author_sort	Michael G. Rowley
title	Hierarchical distance sampling reveals increased population size and broader habitat use in the endangered Bahama Oriole
title_short	Hierarchical distance sampling reveals increased population size and broader habitat use in the endangered Bahama Oriole
title_full	Hierarchical distance sampling reveals increased population size and broader habitat use in the endangered Bahama Oriole
title_fullStr	Hierarchical distance sampling reveals increased population size and broader habitat use in the endangered Bahama Oriole
title_full_unstemmed	Hierarchical distance sampling reveals increased population size and broader habitat use in the endangered Bahama Oriole
title_sort	hierarchical distance sampling reveals increased population size and broader habitat use in the endangered bahama oriole
publisher	Resilience Alliance
publishDate	2021
url	https://doaj.org/article/16762c835f6e49e9b382d48caee8ae4b
work_keys_str_mv	AT michaelgrowley hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT richardcstanley hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT janinemantalffy hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT jenniferlchristhilf hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT danielcstonko hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT scottbjohnson hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT shelleycantwoodside hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT tscottsillett hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT matthewefagan hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT colinestudds hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole AT kevineomland hierarchicaldistancesamplingrevealsincreasedpopulationsizeandbroaderhabitatuseintheendangeredbahamaoriole
_version_	1718426888857190400

Hierarchical distance sampling reveals increased population size and broader habitat use in the endangered Bahama Oriole

Ejemplares similares