Landscape structure shapes the diversity of tree seedlings at multiple spatial scales in a fragmented tropical rainforest
| Autor: | Julieta Benítez-Malvido, Isela Zermeño-Hernández, Sergio Nicasio-Arzeta, Susana Maza-Villalobos |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences Plant Science Forests 01 natural sciences Trees Mammals Multidisciplinary biology Ecology Plant Anatomy Eukaryota Biodiversity Plants Terrestrial Environments Geography Seeds Vertebrates Medicine Research Article Conservation of Natural Resources Rainforest Ecological Metrics Forest Ecology Science 010603 evolutionary biology Ecosystems Forest ecology Animals Mexico 0105 earth and related environmental sciences Rainforests Tropical Climate Models Statistical Ecology and Environmental Sciences Organisms Species diversity Biology and Life Sciences Species Diversity biology.organism_classification Seedling Seedlings Amniotes Secondary forest Species richness Zoology Global biodiversity Tropical rainforest |
| Zdroj: | PLoS ONE, Vol 16, Iss 7, p e0253284 (2021) PLoS ONE |
| ISSN: | 1932-6203 |
| Popis: | The maintenance of seedling diversity of animal-dispersed tree species is fundamental for the structure and function of forest patches in fragmented tropical rainforests. Nonetheless, the effects of landscape structure at different spatial scales on α- and β-diversity of tree seedling communities are recently explored. Using a multi-scale approach, we assessed the relative effect of landscape composition and configuration on α- and β-diversity of animal-dispersed seedlings within 16 forest patches in the Lacandona rainforest, Mexico. We assessed these effects at 13 spatial scales (from 300 to 1500 m radius, at 100 m intervals) for three metrics of effective number of species considering α- and β-diversity. We found that α-diversity was largely affected by landscape composition and β-diversity by landscape configuration. On the one hand, the amount of secondary forest influenced α-diversity. Additionally, species richness increased in landscapes with highly aggregated forest patches. On the other hand, β-diversity was affected positively by forest fragmentation and negatively by the edge contrast of forest patches with the surrounding matrix. Our findings indicate that landscape configuration is a strong driver of seedling diversity in highly deforested rainforests. Promoting forest patches and secondary forests through payment for ecosystem services’ programs, favoring matrix quality within land-sharing schemes of smallholder agriculture and secondary forest management, and identifying restoration opportunities for assisted or unassisted natural regeneration are urgently needed for conservation of seedling diversity in human-modified tropical landscapes. |
| Databáze: | OpenAIRE |
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