Habitat suitability and movement patterns of reintroduced green toad on Öland
(2023) BION02 20231Degree Projects in Biology
- Abstract
- The European green toad (Bufotes viridis) population in Sweden has faced a significant decline, attributed to habitat degradation, reduced genetic diversity, and the negative impacts of climate change. In response, the Swedish government has implemented protection and conservation strategies. As part of these efforts, Nordens Ark has been involved in rearing captured individuals and reintroducing green toads onto Öland. To gain deeper insights into the reintroduced green toad population on Öland, radio tracking alongside post-reintroduction movement and habitat suitability analyses have been conducted. The movement analysis, utilizing clustering methods supported by GAP analysis, discovered movement patterns, which could be categorized... (More)
- The European green toad (Bufotes viridis) population in Sweden has faced a significant decline, attributed to habitat degradation, reduced genetic diversity, and the negative impacts of climate change. In response, the Swedish government has implemented protection and conservation strategies. As part of these efforts, Nordens Ark has been involved in rearing captured individuals and reintroducing green toads onto Öland. To gain deeper insights into the reintroduced green toad population on Öland, radio tracking alongside post-reintroduction movement and habitat suitability analyses have been conducted. The movement analysis, utilizing clustering methods supported by GAP analysis, discovered movement patterns, which could be categorized into two or three patterns. A common feature among these patterns is the short-distance dispersal with in-between stopovers. In the habitat suitability analysis, Generalized Linear Mixed Models (GLMM) have been applied to uncover the ecological niche of the green toad and generate predictive maps of habitat suitability across Öland. The findings indicate a preference for wetland habitats located near artificial buildings and coastal areas. (Less)
- Popular Abstract
- The European green toad has suddenly disappeared in Sweden. It could cause by a combination of habitat degradation, limited genetic variation, and climate change. Sweden has taken steps to protect and conserve this species, including reintroducing green toads to Öland with the help of Nordens Ark. To better understand why and how they just vanished, we radio tracked 35 of the green toads who we reintroduced to Öland and analysed their movement patterns and habitat suitability. We found two or three common patterns, all involving short-distance dispersal with stopovers. In terms of habitat, the toads prefer wetlands near buildings and the coast. During the actually tracking, areas fitted this description is the grazing grassland in the... (More)
- The European green toad has suddenly disappeared in Sweden. It could cause by a combination of habitat degradation, limited genetic variation, and climate change. Sweden has taken steps to protect and conserve this species, including reintroducing green toads to Öland with the help of Nordens Ark. To better understand why and how they just vanished, we radio tracked 35 of the green toads who we reintroduced to Öland and analysed their movement patterns and habitat suitability. We found two or three common patterns, all involving short-distance dispersal with stopovers. In terms of habitat, the toads prefer wetlands near buildings and the coast. During the actually tracking, areas fitted this description is the grazing grassland in the coastal area. Maybe the reintroduction of green toads could try reintroduction sites similar to this. Our findings are crucial for the conservation of green toads in Sweden. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9139999
- author
- Cao, Jingpeng
- supervisor
- organization
- course
- BION02 20231
- year
- 2023
- type
- H2 - Master's Degree (Two Years)
- subject
- language
- English
- id
- 9139999
- date added to LUP
- 2023-10-13 15:49:27
- date last changed
- 2023-10-13 15:49:27
@misc{9139999,
abstract = {{The European green toad (Bufotes viridis) population in Sweden has faced a significant decline, attributed to habitat degradation, reduced genetic diversity, and the negative impacts of climate change. In response, the Swedish government has implemented protection and conservation strategies. As part of these efforts, Nordens Ark has been involved in rearing captured individuals and reintroducing green toads onto Öland. To gain deeper insights into the reintroduced green toad population on Öland, radio tracking alongside post-reintroduction movement and habitat suitability analyses have been conducted. The movement analysis, utilizing clustering methods supported by GAP analysis, discovered movement patterns, which could be categorized into two or three patterns. A common feature among these patterns is the short-distance dispersal with in-between stopovers. In the habitat suitability analysis, Generalized Linear Mixed Models (GLMM) have been applied to uncover the ecological niche of the green toad and generate predictive maps of habitat suitability across Öland. The findings indicate a preference for wetland habitats located near artificial buildings and coastal areas.}},
author = {{Cao, Jingpeng}},
language = {{eng}},
note = {{Student Paper}},
title = {{Habitat suitability and movement patterns of reintroduced green toad on Öland}},
year = {{2023}},
}