A multi-species occupancy modeling approach to access the impacts of land use and land cover on terrestrial vertebrates in the Mumbai Metropolitan Region (MMR), Western Ghats, India

Autor:	Rahul Khot, Pinal Patel, Mrugank Prabhu, Sameer B. Bajaru, Saunak Pal, Deepak Apte
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	0106 biological sciences Carnivora Biodiversity Forests 01 natural sciences Body Size Life History Traits Mammals education.field_of_study Multidisciplinary Ecology Eukaryota Terrestrial Environments Habitats Geography Habitat Vertebrates Medicine Quadrat Environmental Monitoring Research Article Ecological Metrics Occupancy Science Population India Land cover Models Biological 010603 evolutionary biology Ecosystems Amphibians Birds Animals education Restoration ecology Ecosystem Land use 010604 marine biology & hydrobiology Urbanization Ecology and Environmental Sciences Organisms Reptiles Biology and Life Sciences Bayes Theorem Species Diversity Models Theoretical Amniotes Zoology
Zdroj:	PLoS ONE, Vol 15, Iss 10, p e0240989 (2020) PLoS ONE
ISSN:	1932-6203
Popis:	Urbanization is one of the main drivers in the conversion of natural habitats into different land use and land cover types (LULC) which threaten the local as well as global biodiversity. This impact is particularly alarming in tropical countries like India, where ~18% of the world's population live, and its ever-growing economy (i.e., industrial development) expanded urban areas by several folds. We undertook this study to examine the impacts of urbanization (i.e., LULC) on terrestrial vertebrates (mammals, birds, reptiles, and amphibians) in the Mumbai Metropolitan Region (MMR), Western Ghats, India. We sampled different habitats ranged from highly disturbed urban areas to less disturbed forested areas. Multiple sampling methods such as quadrat sampling, line transect, point count, and camera trapping were used to quantify the target taxa. We used multi-species occupancy modeling in the Bayesian framework to estimate detection probability and occupancy and to assess the effect of various LULC on different species. All four groups showed a significant negative impact of increasing anthropogenic habitat cover on occupancy. Out of 213 species detected in this study, 96% of mammals, 85% of birds, 93.75% of amphibians, and 69.43% of reptiles showed a negative effect of anthropogenic habitat cover. Evidence suggests that historical and recent human disturbances could have played an important role in transforming this area from semi-evergreen and moist deciduous forest to open, scrubby, dry deciduous, and fire-prone landscape. This might be the reason for the high occupancy of open and degraded forest habitat preferring species in our study area. We recommend species-rich areas in the MMR, e.g., Karnala Bird Sanctuary (KBS) and Prabalgad-Matheran-Malanggad Hill Range (PMMHR), must be conserved through habitat restoration, ecotourism, public awareness, and policymaking.
Databáze:	OpenAIRE
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