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Habitat Suitability and Distribution Patterns of Rouget’s rail (Rougetius rougetii Guérin-méneville, 1843) in Ethiopia.
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  • Hailu Tilahun Argaw,
  • Afework Bekele,
  • Anagaw Atickem,
  • Nils Stenseth,
  • Diress Tsegaye,
  • Bezawork Afework Bogale
Hailu Tilahun Argaw
Addis Ababa University
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Afework Bekele
Addis Ababa University
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Anagaw Atickem
Addis Ababa University
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Nils Stenseth
University of Oslo
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Diress Tsegaye
Norwegian Institute of Bioeconomy Research
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Bezawork Afework Bogale
Addis Ababa University

Corresponding Author:[email protected]

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Abstract

Geographical distribution and diversity patterns of bird species are influenced by climate change. The Rouget’s rail (Rougetius rougetii) is a ground-dwelling endemic bird species distributed in Ethiopia and Eritrea. It is a near-threatened species menaced by habitat loss, one of the main causes of population declines for bird species. The increasing effects of climate change may further threaten the species’ survival. So far, the spatial distribution of this species is not fully documented. With this study, we develop current potential suitable habitat and predict the future habitat shift of R. rougetii based on environmental data such as bioclimatic variables, population density, vegetation cover, and elevation using ten algorithms. We evaluated the importance of environmental factors in shaping the bird’s distribution and how it shifts under climate change scenarios. We used 182 records of R. rougetii from Ethiopia and nine bioclimatic, population density, vegetation cover, and elevation variables to run the 10 model algorithms. Among 10 algorithms, eight were selected for ensembling models according to their predictive abilities. The current suitable habitats for R. rougetii were predicted to cover an area of about 82,000 km² despite being highly fragmented. The model suggested that temperature seasonality (bio4), elevation, and mean daily air temperatures of the driest quarter (bio9) contributed the most to delimiting suitable areas for this species. R. rougetii is sensitive to climate change associated with elevation, leading to a large, shrinking distribution of suitable areas. The projected spatial and temporal pattern of habitat loss of R. rougetii suggests the importance of climate change mitigation and implementing long-term conservation and management strategies for this threatened endemic bird species.
Submitted to Ecology and Evolution
07 Jul 2024Review(s) Completed, Editorial Evaluation Pending
18 Jul 2024Editorial Decision: Revise Minor
05 Aug 20241st Revision Received
06 Aug 2024Submission Checks Completed
06 Aug 2024Assigned to Editor
06 Aug 2024Review(s) Completed, Editorial Evaluation Pending
27 Aug 2024Editorial Decision: Accept