par Abotsi, Komla Elikplim;Kokou, Kouami;Rouhan, Germinal;Deblauwe, Vincent 
Référence Plant ecology and evolution, 153, 1, page (22-32)
Publication Publié, 2020-03
Référence Plant ecology and evolution, 153, 1, page (22-32)
Publication Publié, 2020-03
Article révisé par les pairs
| Résumé : | Background and aims – The sustainable conservation of biodiversity requires a good understanding of the causes of its decline. Apart from human activities, climate change is the major threat to global biodiversity during the 21st century. Our study aims to determine the impact of climate change on pteridophytes in Togo. Methods – Based on 2865 occurrences of pteridophytes covering West Africa and grouped into 5 ecological groups, current and future distributions of pteridophytes were modelized using Maxent. The conservation capacity of Togolese protected areas for these plants was assessed. Key results – Our results show that 9.81% of the country can shelter simultaneously all groups of pteridophytes. Precipitations of the driest periods, isothermality and temperature seasonality are the climatic variables which constrain the most their niche in West Africa and particularly in Togo. Apart from thermophilic taxa whose climatically suitable niche is expected to nearly double by 2070, niche of all other group should be drastically restricted in Togo. Only protected areas in the southern third of Togo Mountains would guarantee current and future climatic niches for pteridophytes in the country. Conclusions – Southern Togo Mountains will probably constitute a climatic refugium for Pteridophytes in Togo. However, the small extent of protected areas in this part of the country would be a source of vulnerability for these plants. |
