4.7 Article

Potential Distribution of Amphibians with Different Habitat Characteristics in Response to Climate Change in South Korea

Journal

ANIMALS
Volume 11, Issue 8, Pages -

Publisher

MDPI
DOI: 10.3390/ani11082185

Keywords

amphibian species; climate change; habitat characteristics; MaxEnt; species richness

Funding

  1. Ministry of the Environment [NIE-B-2021-01]
  2. ICT promotion fund of Korean Ministry of Science and ICT
  3. Korea Environment Industry and Technology Institute (KEITI) through the Climate Change Response Technology Project'' - Korea Ministry of Environment [2014001310009]
  4. National Research Foundation of Korea - Ministry of Education [NRF-2014R1A1A2060140]

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Amphibian species in South Korea are predicted to face significant impacts from climate change, with wetland amphibians showing more resistance while forest-dwelling amphibians being the most vulnerable. Conservation strategies are urgently needed to protect these species as suitable habitats decline in the future.
Simple Summary Amphibian species are one of one of the groups most vulnerable to climate change according to the International Union for Conservation of Nature (IUCN). Limited research has been conducted investigating the effects of climate change on amphibian species in South Korea. In our study, we aimed to predict the impacts of climate change on the distribution of 16 of the 18 species of amphibians currently reported in South Korea. Altogether, 30,281 occurrence points, six bioclimatic variables, and one environmental variable (altitude) were used in modeling. Moreover, we classified 16 Korean amphibians into three groups based on their habitat characteristics: wetland amphibians (Group 1), migrating amphibians (Group 2), and forest-dwelling amphibians (Group 3). Altitude has been predicted to be a major factor in present amphibian distributions in South Korea. In general, our results show that the seven species in Group 1 should be the most resistant to climate change. The five migrating amphibians (Group 2) should decline with preferred habitat reductions. The forest-dwelling amphibian species (Group 3) are the most vulnerable to climate change and their protection requires the immediate implementation of conservation strategies. We will continue to refine our model as it evolves into a useful tool for our endeavor to preserve South Korea's amphibians as climate change progresses. Amphibian species are highly vulnerable to climate change with significant species decline and extinction predicted worldwide. However, there are very limited studies on amphibians in South Korea. Here, we assessed the potential impacts of climate change on different habitat groups (wetland amphibians, Group 1; migrating amphibians, Group 2; and forest-dwelling amphibians, Group 3) under future climate change and land cover change in South Korea using a maximum entropy modelling approach. Our study revealed that all amphibians would suffer substantial loss of suitable habitats in the future, except Lithobates catesbeianus, Kaloula borealis, and Karsenia koreana. Similarly, species richness for Groups 2 and 3 will decline by 2030, 2050, and 2080. Currently, amphibian species are widely distributed across the country; however, in future, suitable habitats for amphibians would be concentrated along the Baekdudaegan Mountain Range and the southeastern region. Among the three groups, Group 3 amphibians are predicted to be the most vulnerable to climate change; therefore, immediate conservation action is needed to protect them. We expect this study could provide crucial baseline information required for the government to design climate change mitigation strategies for indigenous amphibians.

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