The Relationships Between Breeding Birds And Landscape Diversity
| Autor: | WU, JUN-YI, 吳俊毅 |
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| Rok vydání: | 2019 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 107 The development of habitats has affected biodiversity and species composition in many regions of the world. Although some landscapes are highly diverse and contain rich organisms, which species can adapt to agricultural land are rarely discussed. Whether the organism can adapt to a specific landscape environment is related to its own traits. The purpose of this study are : (1) Whether the landscape diversity affects the species richness of birds? (2) Whether the heterogeneity of the landscape affects the structure of the bird communities? (3) Whether the traits of birds’ affect the distribution of bird species along the gradient of landscape diversity? This study used the bird’s distributed data of BBS Taiwan and Jiianan's Reservoir and Canal Wetlands Conservation Project to estimate bird species diversity and analyze the relationship between species richness, bird communities and landscape heterogeneity. In addition, I used the above-mentioned bird’s data to analyze the distribution of each bird species along the gradient of landscape diversity, then dived bird to three groups of increasing by landscape diversity, decline by landscape diversity and no impact, and used the Classification and Regression tree(CART) to find the difference of these three groups. The results show that number of species were affected by the landscape diversity; the higher diverse of landscape with the fewer species. Bird communities vary with the gradient of landscape diversity, and the higher diverse of landscape, the bird communities were more similar. The difference of bird’s distribution along the gradient of landscape diversity is mainly related to the habitat specificity. The highly diverse of landscape, mainly for species with low specificity of habitat; on the other hand, birds with high specificity prefer the lower diverse of landscape. In addition, weight and feeding traits can’t dive bird species from the gradients of landscape diversity. According to the results of this study, the heterogeneity of the landscape has an impact on the number and bird communities, and as the higher diverse of landscape, the number of species will be less, the bird population will be more similar and more widespread bird species. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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