ArticleScientific reports2020
Extent, intensity and drivers of mammal defaunation: a continental-scale analysis across the Neotropics.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed.
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- Range-wide assessment of habitat suitability for jaguars using multiscale species distribution modelling.Scientific reports · 2025Article
- Importance of connectivity for carnivore richness and occupancy in fragmented biodiversity hotspots.Conservation biology : the journal of the Society for Conservation Biology · 2025Article
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- Reconstructing the degree of mammal defaunation throughout the Caatinga - the largest dry tropical forest region of South America.PloS one · 2025Article
- A continental-wide decline of occupancy and diversity in five Neotropical carnivores.Global ecology and conservation · 2024Article
- Resolving biology's dark matter: species richness, spatiotemporal distribution, and community composition of a dark taxon.BMC biology · 2024Article
- Long-term data reveal fitness costs of anthropogenic prey depletion for a subordinate competitor, the African wild dog (Ecology and evolution · 2024Article
- Preparing Collared Peccary (Pathogens (Basel, Switzerland) · 2024Article
- Impending anthropogenic threats and protected area prioritization for jaguars in the Brazilian Amazon.Communications biology · 2023Article
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- Global protected areas seem insufficient to safeguard half of the world's mammals from human-induced extinction.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Molecular characterization ofInternational journal for parasitology. Parasites and wildlife · 2022Article
- Habitat loss estimation for assessing terrestrial mammalian species extinction risk: an open data framework.PeerJ · 2022Article
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- Intrinsic and extrinsic motivations governing prey choice by hunters in a post-war African forest-savannah macromosaic.PloS one · 2021Article
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3 authors.
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Abstract
Neotropical mammal diversity is currently threatened by several chronic human-induced pressures. We compiled 1,029 contemporary mammal assemblages surveyed across the Neotropics to quantify the continental-scale extent and intensity of defaunation and understand their determinants based on environmental covariates. We calculated a local defaunation index for all assemblages-adjusted by a false-absence ratio-which was examined using structural equation models. We propose a hunting index based on socioenvironmental co-variables that either intensify or inhibit hunting, which we used as an additional predictor of defaunation. Mammal defaunation intensity across the Neotropics on average erased 56.5% of the local source fauna, with ungulates comprising the most ubiquitous losses. The extent of defaunation is widespread, but more incipient in hitherto relatively intact major biomes that are rapidly succumbing to encroaching deforestation frontiers. Assemblage-wide mammal body mass distribution was greatly reduced from a historical 95th-percentile of ~ 14 kg to only ~ 4 kg in modern assemblages. Defaunation and depletion of large-bodied species were primarily driven by hunting pressure and remaining habitat area. Our findings can inform guidelines to design transnational conservation policies to safeguard native vertebrates, and ensure that the "empty ecosystem" syndrome will be deterred from reaching much of the New World tropics.
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