Publications by authors named "Cyrille Chatelain"

We compare the numbers of vascular plant species in the three major tropical areas. The Afrotropical Region (Africa south of the Sahara Desert plus Madagascar), roughly equal in size to the Latin American Region (Mexico southward), has only 56,451 recorded species (about 170 being added annually), as compared with 118,308 recorded species (about 750 being added annually) in Latin America. Southeast Asia, only a quarter the size of the other two tropical areas, has approximately 50,000 recorded species, with an average of 364 being added annually.

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Article Synopsis
  • Biological invasions, particularly of alien plant species, are a significant concern in the Anthropocene, yet their distribution remains poorly understood, prompting this global analysis of contributing factors.
  • The study utilizes statistical models to assess how biogeographic, environmental, and socio-economic factors influence the richness of naturalized and invasive alien plants across 838 terrestrial regions, revealing that socio-economic factors are more significant for invasive species richness.
  • Findings indicate that warm-temperate and tropical regions exhibit higher naturalized plant richness, while islands show markedly higher richness compared to mainland, and the study suggests a need to address socio-economic influences to mitigate the impacts of plant invasions and achieve biodiversity goals.
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The FLOTROP dataset contains numerous plant observations (around 340,000 occurrences) in northern tropical Africa (from the 5 to 25 parallel north) in open ecosystems (savannah and steppe). They were collected by multiple collectors between 1920 and 2012 and were managed by Philippe Daget. These observations are probably the most important and unique source of plant distribution over the Sahel area.

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This dataset provides the Global Naturalized Alien Flora (GloNAF) database, version 1.2. GloNAF represents a data compendium on the occurrence and identity of naturalized alien vascular plant taxa across geographic regions (e.

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All around the globe, humans have greatly altered the abiotic and biotic environment with ever-increasing speed. One defining feature of the Anthropocene epoch is the erosion of biogeographical barriers by human-mediated dispersal of species into new regions, where they can naturalize and cause ecological, economic and social damage. So far, no comprehensive analysis of the global accumulation and exchange of alien plant species between continents has been performed, primarily because of a lack of data.

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In tropical regions, most primary ecosystems have been replaced by mosaic landscapes in which species must cope with a large shift in the distribution of their habitat and associated food resources. Primates are particularly vulnerable to habitat modifications. Most species persist in small fragments surrounded by complex human-mediated matrices whose structure and connectivity may strongly influence their dispersal and feeding behavior.

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