a 2013

Distance decay of floristic composition along temperature and moisture gradient in Taiwan

LI, Ching-Feng, David ZELENÝ, Tze-Ying CHEN, Chang-Fu HSIEH, Milan CHYTRÝ et. al.

Basic information

Original name

Distance decay of floristic composition along temperature and moisture gradient in Taiwan

Authors

LI, Ching-Feng, David ZELENÝ, Tze-Ying CHEN, Chang-Fu HSIEH and Milan CHYTRÝ

Edition

6th international conference of International Biogeography Society, Miami, FL, USA, 2013

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Organization unit

Faculty of Science

ISSN

Keywords in English

altitudinal gradient; dispersal limitation; mantel test; spatial structure; variance partitioning

Tags

International impact
Změněno: 16/1/2015 22:20, Ing. Ching-Feng Li, Ph.D.

Abstract

V originále

Vegetation pattern in Taiwan is influenced by temperature and moisture gradients. Empirical experience indicates that in cooler areas, one vegetation type can occur across the whole island, while in warmer areas vegetation types exhibit a remarkable local variation. Does distance decay of similarity in floristic composition increase from cool to warm areas? If so, what is possible explanation for this pattern? To answer these questions, we used the National Vegetation Database of Taiwan with 5018 forest vegetation plots covering an altitudinal range of almost 3500 m. The dataset was stratified using a randomly moving window, generating spatially structured subsamples. Mantel test and variance partitioning were used to calculate adjusted R2 of the relationship between vegetation similarity matrix and geographic distance or environmental similarity matrix, respectively. The results show that distance decay of floristic composition is stronger in warmer and/or wetter habitats in Taiwan. In warmer habitats, it can be explained by the dispersal limitation or unknown spatially structured environmental factors; in wetter habitats by the spatially structured environmental factors.

Links

GAP505/12/1022, research and development project
Name: Beta diverzita rostlinných společenstev podél omezených ekologických gradientů
Investor: Czech Science Foundation