Determining conservation priority areas for Palearctic passerine migrant birds in sub-Saharan Africa

Migratory bird species breeding in the Palearctic and overwintering in sub-Saharan Africa face multiple conservation challenges. As a result, many of these species have declined in recent decades, some dramatically. We therefore used the best available database for the distribution of 68 passerine m...

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Main Authors: Bruno A. Walther, Lionel H. Pirsig
Format: Article
Language:English
Published: Resilience Alliance 2017-06-01
Series:Avian Conservation and Ecology
Subjects:
Online Access:http://www.ace-eco.org/vol12/iss1/art2/
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author Bruno A. Walther
Lionel H. Pirsig
author_facet Bruno A. Walther
Lionel H. Pirsig
author_sort Bruno A. Walther
collection DOAJ
description Migratory bird species breeding in the Palearctic and overwintering in sub-Saharan Africa face multiple conservation challenges. As a result, many of these species have declined in recent decades, some dramatically. We therefore used the best available database for the distribution of 68 passerine migrants in sub-Saharan Africa to determine priority regions for their conservation. After modeling each species' distribution using BIOMOD software, we entered the resulting species distributions at a 1° à - 1° grid resolution into MARXAN software. We then used several different selection procedures that varied the boundary length modifier, species penalty factor, and the inclusion of grid cells with high human footprint and with protected areas. While results differed between selection procedures, four main regions were regularly selected: (1) one centered on southern Mali; (2) one including Eritrea, central Sudan, and northern Ethiopia; (3) one encompassing southwestern Kenya and much of Tanzania and Uganda; and (4) one including much of Zimbabwe and southwestern Zambia. We recommend that these four regions become priority regions for research and conservation efforts for the bird species considered in this study.
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spelling doaj.art-9e7354866f1643ae86c31e967960e4d42023-01-02T04:21:16ZengResilience AllianceAvian Conservation and Ecology1712-65682017-06-01121210.5751/ACE-00934-120102934Determining conservation priority areas for Palearctic passerine migrant birds in sub-Saharan AfricaBruno A. Walther0Lionel H. Pirsig1Master Program in Global Health and Development, College of Public Health, Taipei Medical UniversityMaster Program in Global Health and Development, College of Public Health, Taipei Medical UniversityMigratory bird species breeding in the Palearctic and overwintering in sub-Saharan Africa face multiple conservation challenges. As a result, many of these species have declined in recent decades, some dramatically. We therefore used the best available database for the distribution of 68 passerine migrants in sub-Saharan Africa to determine priority regions for their conservation. After modeling each species' distribution using BIOMOD software, we entered the resulting species distributions at a 1° à - 1° grid resolution into MARXAN software. We then used several different selection procedures that varied the boundary length modifier, species penalty factor, and the inclusion of grid cells with high human footprint and with protected areas. While results differed between selection procedures, four main regions were regularly selected: (1) one centered on southern Mali; (2) one including Eritrea, central Sudan, and northern Ethiopia; (3) one encompassing southwestern Kenya and much of Tanzania and Uganda; and (4) one including much of Zimbabwe and southwestern Zambia. We recommend that these four regions become priority regions for research and conservation efforts for the bird species considered in this study.http://www.ace-eco.org/vol12/iss1/art2/area selectionBIOMODconservation prioritiesGeographic Information Systems (GIS)MARXANniche modellingPalearctic migrantspasserinessub-Saharan Africa
spellingShingle Bruno A. Walther
Lionel H. Pirsig
Determining conservation priority areas for Palearctic passerine migrant birds in sub-Saharan Africa
Avian Conservation and Ecology
area selection
BIOMOD
conservation priorities
Geographic Information Systems (GIS)
MARXAN
niche modelling
Palearctic migrants
passerines
sub-Saharan Africa
title Determining conservation priority areas for Palearctic passerine migrant birds in sub-Saharan Africa
title_full Determining conservation priority areas for Palearctic passerine migrant birds in sub-Saharan Africa
title_fullStr Determining conservation priority areas for Palearctic passerine migrant birds in sub-Saharan Africa
title_full_unstemmed Determining conservation priority areas for Palearctic passerine migrant birds in sub-Saharan Africa
title_short Determining conservation priority areas for Palearctic passerine migrant birds in sub-Saharan Africa
title_sort determining conservation priority areas for palearctic passerine migrant birds in sub saharan africa
topic area selection
BIOMOD
conservation priorities
Geographic Information Systems (GIS)
MARXAN
niche modelling
Palearctic migrants
passerines
sub-Saharan Africa
url http://www.ace-eco.org/vol12/iss1/art2/
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