Movement ecology and habitat use differences in Black Scoters wintering along the Atlantic coast

For migratory species such as Black Scoters (Melanitta americana) whose range encompasses a variety of habitats, it is especially important to obtain habitat use information across the species' range to better understand anthropogenic threats, e.g., marine development and climate change. The ob...

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Autores principales:	Hannah M. Plumpton, Scott G. Gilliland, Beth E. Ross
Formato:	article
Lenguaje:	EN
Publicado:	Resilience Alliance 2020
Materias:	black scoter geographic variation <span style="font-style: normal">melanitta americana</span> movement wintering ecology Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/f1124432f35648eba2f3d1942dc28724
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spelling	oai:doaj.org-article:f1124432f35648eba2f3d1942dc287242021-12-02T14:37:54ZMovement ecology and habitat use differences in Black Scoters wintering along the Atlantic coast1712-6568https://doaj.org/article/f1124432f35648eba2f3d1942dc287242020-12-01T00:00:00Zhttps://www.ace-eco.org/vol15/iss2/art6/https://doaj.org/toc/1712-6568For migratory species such as Black Scoters (Melanitta americana) whose range encompasses a variety of habitats, it is especially important to obtain habitat use information across the species' range to better understand anthropogenic threats, e.g., marine development and climate change. The objective of our study was to investigate the winter movement patterns and habitat use of Black Scoters in the Atlantic Ocean by quantifying the following key movement indices: number of wintering sites, arrival and departure dates to and from the wintering grounds, days at a wintering site, area of a wintering site, distance between wintering sites, and differences in habitat features of wintering sites. We also tested if winter movement patterns varied by sex or along a latitudinal gradient. To quantify winter movement patterns of Black Scoters, we used satellite telemetry data from 2009 to 2012 (n = 29 tagged females and 15 males for a total of 66 winter seasons, 38 female winter seasons, 28 male winter seasons). Our results indicated that the average wintering site area and distance between wintering sites varied with latitude. Wintering sites located at southern latitudes were larger and further apart than wintering sites located at more northern latitudes. Additionally, wintering sites varied in bathymetry, distance to shore, and the slope of the ocean floor at different latitudes; northern wintering sites were in deeper waters, closer to shore, and on steeper slopes than southern wintering sites. Our results suggest that habitat use may differ by latitude, indicating that habitats used in northern locations may not be representative of habitats used in more southern wintering areas. Understanding variation of habitat use along a latitudinal gradient will enable managers to focus sampling effort for Black Scoter abundance and distribution along the Atlantic coast and provide insight on the wintering ecology and movement of Black Scoters.Hannah M. PlumptonScott G. GillilandBeth E. RossResilience Alliancearticleblack scotergeographic variation<span style="font-style: normal">melanitta americana</span>movementwintering ecologyPlant cultureSB1-1110Environmental sciencesGE1-350Plant ecologyQK900-989ENAvian Conservation and Ecology, Vol 15, Iss 2, p 6 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	black scoter geographic variation <span style="font-style: normal">melanitta americana</span> movement wintering ecology Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989
spellingShingle	black scoter geographic variation <span style="font-style: normal">melanitta americana</span> movement wintering ecology Plant culture SB1-1110 Environmental sciences GE1-350 Plant ecology QK900-989 Hannah M. Plumpton Scott G. Gilliland Beth E. Ross Movement ecology and habitat use differences in Black Scoters wintering along the Atlantic coast
description	For migratory species such as Black Scoters (Melanitta americana) whose range encompasses a variety of habitats, it is especially important to obtain habitat use information across the species' range to better understand anthropogenic threats, e.g., marine development and climate change. The objective of our study was to investigate the winter movement patterns and habitat use of Black Scoters in the Atlantic Ocean by quantifying the following key movement indices: number of wintering sites, arrival and departure dates to and from the wintering grounds, days at a wintering site, area of a wintering site, distance between wintering sites, and differences in habitat features of wintering sites. We also tested if winter movement patterns varied by sex or along a latitudinal gradient. To quantify winter movement patterns of Black Scoters, we used satellite telemetry data from 2009 to 2012 (n = 29 tagged females and 15 males for a total of 66 winter seasons, 38 female winter seasons, 28 male winter seasons). Our results indicated that the average wintering site area and distance between wintering sites varied with latitude. Wintering sites located at southern latitudes were larger and further apart than wintering sites located at more northern latitudes. Additionally, wintering sites varied in bathymetry, distance to shore, and the slope of the ocean floor at different latitudes; northern wintering sites were in deeper waters, closer to shore, and on steeper slopes than southern wintering sites. Our results suggest that habitat use may differ by latitude, indicating that habitats used in northern locations may not be representative of habitats used in more southern wintering areas. Understanding variation of habitat use along a latitudinal gradient will enable managers to focus sampling effort for Black Scoter abundance and distribution along the Atlantic coast and provide insight on the wintering ecology and movement of Black Scoters.
format	article
author	Hannah M. Plumpton Scott G. Gilliland Beth E. Ross
author_facet	Hannah M. Plumpton Scott G. Gilliland Beth E. Ross
author_sort	Hannah M. Plumpton
title	Movement ecology and habitat use differences in Black Scoters wintering along the Atlantic coast
title_short	Movement ecology and habitat use differences in Black Scoters wintering along the Atlantic coast
title_full	Movement ecology and habitat use differences in Black Scoters wintering along the Atlantic coast
title_fullStr	Movement ecology and habitat use differences in Black Scoters wintering along the Atlantic coast
title_full_unstemmed	Movement ecology and habitat use differences in Black Scoters wintering along the Atlantic coast
title_sort	movement ecology and habitat use differences in black scoters wintering along the atlantic coast
publisher	Resilience Alliance
publishDate	2020
url	https://doaj.org/article/f1124432f35648eba2f3d1942dc28724
work_keys_str_mv	AT hannahmplumpton movementecologyandhabitatusedifferencesinblackscoterswinteringalongtheatlanticcoast AT scottggilliland movementecologyandhabitatusedifferencesinblackscoterswinteringalongtheatlanticcoast AT betheross movementecologyandhabitatusedifferencesinblackscoterswinteringalongtheatlanticcoast
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Movement ecology and habitat use differences in Black Scoters wintering along the Atlantic coast

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