Biodiversity conservation in the sacred groves of north-west Ethiopia: diversity and community structure of woody species
| Autor: | Luc Lens, Ferehiwot Mequanint, Diederik Strubbe, Enyew Adgo, Shimeles Aynalem, Amaury Frankl, Alemayehu Wassie, Jan Nyssen, Bart Muys |
|---|---|
| Přispěvatelé: | Bahir Dar University (BDU), Universiteit Gent = Ghent University (UGENT), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), This study received financial support from VLIR-UOS, Belgium through the VLIR-IUC Interuniversity cooperation with Bahir Dar University, Ethiopia (BDU-IUC, Universiteit Gent = Ghent University [Belgium] (UGENT) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Extinction debts PATCHES IMPACT Evolution Seedling Biodiversity & Conservation Biodiversity Environmental Sciences & Ecology Metapopulation Sacred grove [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy 010603 evolutionary biology 01 natural sciences Recruitment credit Ecosystem services [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Behavior and Systematics Abundance (ecology) Fragmentation lcsh:QH540-549.5 ASSEMBLAGES Ecology Evolution Behavior and Systematics CHURCH FORESTS Nature and Landscape Conservation Agricultural matrix ENVIRONMENT Science & Technology Habitat fragmentation LANDSCAPE Ecology Agroforestry 010604 marine biology & hydrobiology Vegetation 15. Life on land [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics Geography EXTINCTION Habitat HABITAT FRAGMENTATION Earth and Environmental Sciences Biodiversity Conservation Species richness VEGETATION lcsh:Ecology [SDE.BE]Environmental Sciences/Biodiversity and Ecology Life Sciences & Biomedicine RESPONSES |
| Zdroj: | Global Ecology and Conservation Global Ecology and Conservation, 2020, 24, pp.e01377. ⟨10.1016/j.gecco.2020.e01377⟩ Global Ecology and Conservation, Elsevier, 2020, 24, pp.e01377. ⟨10.1016/j.gecco.2020.e01377⟩ Global Ecology and Conservation, Vol 24, Iss, Pp e01377-(2020) GLOBAL ECOLOGY AND CONSERVATION |
| ISSN: | 2351-9894 |
| Popis: | International audience; Forest fragmentation is globally pervasive but especially severe in tropical forests, as exemplified by the state of Afrotropical montane forests in Ethiopia, where remnant forests almost exclusively exists as small, isolated fragments centered around churches, forming networks of partially intact ‘habitat islands.’ Church forests deliver ecosystem services such as forest products and erosion control, and are considered a benchmark for assessing forest biodiversity quality. However, safeguarding church forest integrity necessitates a better understanding of the factors determining their biodiversity and community structure. Therefore, we surveyed a network of church forests southeast of Lake Tana to assess factors explaining their tree species richness and composition. We found that the 24 church forests studied here represent about 20% of the ca. 270 tree species that occur in tropical northeast Africa. All surveyed forests however face strong extinction debts, with five tree species at risk of completely disappearing from the region and many more species only regenerating in a limited number of church forests. Church forest integrity partially reflected the anthropogenic pressure on the area, as forest regeneration tended to be stronger in fenced church forests. Seedling abundance depended on the local presence of large, mature conspecific trees and on the geographic distance to potential source populations of seeds, strongly suggest that metapopulation dynamics likely are important. We conclude that church forest conservation and minimizing further degradation of the landscape matrix are needed to help sustaining the ecological and socioeconomic potential of this unique network of remnant forests. |
| Databáze: | OpenAIRE |
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