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Farooq H, Harfoot M, Rahbek C, Geldmann J. Threats to reptiles at global and regional scales. Curr Biol 2024; 34:2231-2237.e2. [PMID: 38657609 DOI: 10.1016/j.cub.2024.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/19/2024] [Accepted: 04/03/2024] [Indexed: 04/26/2024]
Abstract
Reptiles are an important, yet often understudied, taxon in nature conservation. They play a significant role in ecosystems1 and can serve as indicators of environmental health, often responding more rapidly to human pressures than other vertebrate groups.2 At least 21% of reptiles are currently assessed as threatened with extinction by the IUCN.3 However, due to the lack of comprehensive global assessments until recently, they have been omitted from spatial studies addressing conservation or spatial prioritization (e.g., Rosauer et al.,4,5,6,7,8 Fritz and Rahbek,4,5,6,7,8 Farooq et al.,4,5,6,7,8 Meyer et al., 4,5,6,7,8 and Farooq et al.4,5,6,7,8). One important knowledge gap in conservation is the lack of spatially explicit information on the main threats to biodiversity,9 which significantly hampers our ability to respond effectively to the current biodiversity crisis.10,11 In this study, we calculate the probability of a reptile species in a specific location being affected by one of seven biodiversity threats-agriculture, climate change, hunting, invasive species, logging, pollution, and urbanization. We conducted the analysis at a global scale, using a 50 km × 50 km grid, and evaluated the impact of these threats by studying their relationship with the risk of extinction. We find that climate change, logging, pollution, and invasive species are most linked to extinction risk. However, we also show that there is considerable geographical variation in these results. Our study highlights the importance of going beyond measuring the intensity of threats to measuring the impact of these separately for various biogeographical regions of the world, with different historical contingencies, as opposed to a single global analysis treating all regions the same.
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Affiliation(s)
- Harith Farooq
- Center for Macroecology, Evolution and Climate, Globe Institute, University of Copenhagen, Copenhagen 2100, Denmark; Faculty of Natural Sciences, Lúrio University, Pemba 958, Mozambique; Gothenburg Global Biodiversity Centre, University of Gothenburg, Gothenburg 40530, Sweden.
| | - Mike Harfoot
- Vizzuality, Calle de Fuencarral, Madrid 28010, Spain
| | - Carsten Rahbek
- Center for Macroecology, Evolution and Climate, Globe Institute, University of Copenhagen, Copenhagen 2100, Denmark; Center for Global Mountain Biodiversity, GLOBE Institute, University of Copenhagen, Copenhagen 2100, Denmark; Institute of Ecology, Peking University, Beijing 100871, China; Danish Institute for Advanced Study, University of Southern Denmark, Odense M 5230, Denmark
| | - Jonas Geldmann
- Center for Macroecology, Evolution and Climate, Globe Institute, University of Copenhagen, Copenhagen 2100, Denmark
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Mammola S, Adamo M, Antić D, Calevo J, Cancellario T, Cardoso P, Chamberlain D, Chialva M, Durucan F, Fontaneto D, Goncalves D, Martínez A, Santini L, Rubio-Lopez I, Sousa R, Villegas-Rios D, Verdes A, Correia RA. Drivers of species knowledge across the tree of life. eLife 2023; 12:RP88251. [PMID: 37846960 PMCID: PMC10581686 DOI: 10.7554/elife.88251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023] Open
Abstract
Knowledge of biodiversity is unevenly distributed across the Tree of Life. In the long run, such disparity in awareness unbalances our understanding of life on Earth, influencing policy decisions and the allocation of research and conservation funding. We investigated how humans accumulate knowledge of biodiversity by searching for consistent relationships between scientific (number of publications) and societal (number of views in Wikipedia) interest, and species-level morphological, ecological, and sociocultural factors. Across a random selection of 3019 species spanning 29 Phyla/Divisions, we show that sociocultural factors are the most important correlates of scientific and societal interest in biodiversity, including the fact that a species is useful or harmful to humans, has a common name, and is listed in the International Union for Conservation of Nature Red List. Furthermore, large-bodied, broadly distributed, and taxonomically unique species receive more scientific and societal attention, whereas colorfulness and phylogenetic proximity to humans correlate exclusively with societal attention. These results highlight a favoritism toward limited branches of the Tree of Life, and that scientific and societal priorities in biodiversity research broadly align. This suggests that we may be missing out on key species in our research and conservation agenda simply because they are not on our cultural radar.
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Affiliation(s)
- Stefano Mammola
- Molecular Ecology Group (MEG), Water Research Institute (CNR-IRSA), National Research CouncilVerbaniaItaly
- Laboratory for Integrative Biodiversity Research (LIBRe), Finnish Museum of Natural History (LUOMUS), University of HelsinkiHelsinkiFinland
- National Biodiversity Future CenterPalermoItaly
| | - Martino Adamo
- National Biodiversity Future CenterPalermoItaly
- Department of Life Sciences and Systems Biology, University of TurinTorinoItaly
| | - Dragan Antić
- University of Belgrade - Faculty of BiologyBelgradeSerbia
| | - Jacopo Calevo
- Royal Botanic GardensLondonUnited Kingdom
- School of Molecular and Life Sciences, Curtin UniversityPerthAustralia
| | - Tommaso Cancellario
- Molecular Ecology Group (MEG), Water Research Institute (CNR-IRSA), National Research CouncilVerbaniaItaly
| | - Pedro Cardoso
- Laboratory for Integrative Biodiversity Research (LIBRe), Finnish Museum of Natural History (LUOMUS), University of HelsinkiHelsinkiFinland
| | - Dan Chamberlain
- Department of Life Sciences and Systems Biology, University of TurinTorinoItaly
| | - Matteo Chialva
- National Biodiversity Future CenterPalermoItaly
- Department of Life Sciences and Systems Biology, University of TurinTorinoItaly
| | - Furkan Durucan
- Department of Aquaculture, Isparta University of Applied SciencesIspartaTurkey
| | - Diego Fontaneto
- Molecular Ecology Group (MEG), Water Research Institute (CNR-IRSA), National Research CouncilVerbaniaItaly
- National Biodiversity Future CenterPalermoItaly
| | - Duarte Goncalves
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of PortoMatosinhosPortugal
| | - Alejandro Martínez
- Molecular Ecology Group (MEG), Water Research Institute (CNR-IRSA), National Research CouncilVerbaniaItaly
| | - Luca Santini
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of RomeRomeItaly
| | - Iñigo Rubio-Lopez
- Molecular Ecology Group (MEG), Water Research Institute (CNR-IRSA), National Research CouncilVerbaniaItaly
| | - Ronaldo Sousa
- CBMA – Centre of Molecular and Environmental Biology, Department of Biology, University of MinhoMinhoPortugal
| | | | - Aida Verdes
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias NaturalesMadridSpain
| | - Ricardo A Correia
- Helsinki Lab of Interdisciplinary Conservation Science (HELICS), Department of Geosciences and Geography, University of HelsinkiHelsinkiFinland
- Helsinki Institute of Sustainability Science (HELSUS), University of HelsinkiHelsinkiFinland
- CESAM – Centre for Environmental and Marine Studies, University of AveiroAveiroPortugal
- Biodiversity Unit, University of TurkuTurkuFinland
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Pandey DP, Subedi Pandey G, Sapkota S, Dangol DR, Devkota NR. Attitudes, knowledge and practices of traditional snakebite healers in Nepal: implications for prevention and control of snakebite. Trans R Soc Trop Med Hyg 2023; 117:219-228. [PMID: 36366978 DOI: 10.1093/trstmh/trac104] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/02/2022] [Accepted: 11/04/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Traditional healers are a valuable source of information about community-level treatment of snakebite. Snakebite victims in Nepal depend on traditional healers for treatment, but their practices have not been well-documented. METHODS This was a cross-sectional study of 50 traditional snakebite healers (TSHs) who were selected using a snowball sampling method representing eight districts and four provinces of Nepal. Data were collected using face-to-face-interviews and semi-structured questionnaires. RESULTS About half of the respondents liked to gain knowledge on modern care for snakebite management and nearly all respondents (94%) wished to cooperate closely with the local healthcare system to support snakebite management. People's ingrained faith in traditional healing of snakebite (84%), unaffordable modern care of snakebite (60%) and wishes for early treatment of snakebites (44-48%) were the main causes of their dependency on TSHs. Rauvolfia serpentina, Piper nigrum, Momordica charantia and Tinospora cordifolia were commonly used plants in traditional treatment of snakebite. CONCLUSIONS Easily accessible and affordable healthcare facilities provided by TSHs, public beliefs in traditional healing and inadequate knowledge of antivenom therapy caused dependency on TSHs. The introduction of snakebite treatment centres in snakebite-prone regions and educational interventions are essential to minimize this kind of dependency and associated deaths and disabilities.
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Affiliation(s)
- Deb P Pandey
- Department of Veterinary Microbiology and Parasitology, Agriculture and Forestry University, Rampur, Chitwan, Bagmati Province, Nepal
| | - Gita Subedi Pandey
- Institute for Social and Environmental Research-Nepal, Fulbari, Chitwan, Bagmati Province, Nepal
| | - Sunil Sapkota
- Raise Hands Nepal, Adarsha Tole, Bharatpur-15, Chitwan, Bagmati Province, Nepal
| | - Dharma R Dangol
- Institute for Social and Environmental Research-Nepal, Fulbari, Chitwan, Bagmati Province, Nepal
| | - Naba R Devkota
- DOREX, Agriculture and Forestry University, Rampur, Chitwan, Bagmati Province, Nepal
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Farooq H, Bero C, Guilengue Y, Elias C, Massingue Y, Mucopote I, Nanvonamuquitxo C, Marais J, Faurby S, Antonelli A. Snakebite incidence in rural sub-Saharan Africa might be severely underestimated. Toxicon 2022; 219:106932. [PMID: 36181779 DOI: 10.1016/j.toxicon.2022.106932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/24/2022] [Accepted: 09/21/2022] [Indexed: 11/28/2022]
Abstract
Snakebites in sub-Saharan Africa account for 20,000 to 32,000 annual deaths. But since most data is retrieved from hospital or incomplete central databases, and many victims do not seek hospital treatment or prefer traditional remedies, the current numbers are likely underestimated. In order to reduce snakebite incidence by 50% by 2030 as targeted by World Health Organization, it is crucial to accurately quantify and understand the current rates of snakebite incidence, which can only be reliably measured through household surveys. In this study, we interviewed 1037 households in nine communities in Cabo Delgado, northern Mozambique. Our aim was to quantify true snakebite incidence and under-reporting, by comparing the total number of snakebites reported to our team during household surveys with the subset of reports that reached health centers. We additionally quantified snakebite incidence in terms of species, location of the attack, type of treatment, season, and gender of the victims. These data allow us to propose conservative extrapolations of snakebite incidence and mortality for the province of Cabo Delgado and for Mozambique. Of all snakebites reported in the surveys (N = 296), most incidents were treated exclusively by traditional doctors (N = 174; 59%) and 25% were not seen by any doctor. Most bites occurred on farms and during the rainy season. Using a conservative estimation where we assume our results to be extrapolatable for the whole of rural Mozambique, but considering snakebites in urban areas to be inexistent, we propose that in Cabo Delgado, every year at least 6124 people are victims of snakebites, of which at least 791 result in deaths. In Mozambique, we extrapolated that every year at least 69,261 people are victims of snakebite, of which at least 8950 result in death (one in eight snakebites is fatal). Our estimates are the first for Mozambique based on data retrieved in the country, and despite being an underestimation they increase snakebite incidence levels ten-fold and the number of deaths by 30-fold. Urgent and widespread surveys are needed to further assess the full extent of snakebites in sub-Saharan Africa, explore regional patterns and develop mitigation plans.
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Affiliation(s)
- Harith Farooq
- Gothenburg Global Biodiversity Centre, Göteborg, Sweden; Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden; Faculty of Natural Sciences, Lúrio University, Cabo Delgado, Mozambique.
| | - Cláudio Bero
- Faculty of Natural Sciences, Lúrio University, Cabo Delgado, Mozambique
| | - Yolanda Guilengue
- Faculty of Natural Sciences, Lúrio University, Cabo Delgado, Mozambique
| | - Clementina Elias
- Faculty of Natural Sciences, Lúrio University, Cabo Delgado, Mozambique
| | - Yasalde Massingue
- Faculty of Natural Sciences, Lúrio University, Cabo Delgado, Mozambique
| | - Ivo Mucopote
- Faculty of Natural Sciences, Lúrio University, Cabo Delgado, Mozambique
| | | | - Johan Marais
- African Snakebite Institute, Pretoria, South Africa
| | - Søren Faurby
- Gothenburg Global Biodiversity Centre, Göteborg, Sweden; Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden
| | - Alexandre Antonelli
- Gothenburg Global Biodiversity Centre, Göteborg, Sweden; Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden; Royal Botanic Gardens, Kew, Surrey, UK; Department of Plant Sciences, University of Oxford, Oxford, UK
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