Habit Fragmentation and Biodiversity Collapse Under Recruitment Limitation
AbstractModels of habitat fragmentation have mainly explored the effects on a few species ecologies or on a hierarchical community of competitors. These models reveal that, under different conditions, ecosystem response can underly sharp changes when some given thresholds are reached. Here we explore both spatially-implicit and a spatially-explicit metapopulation models where the colonization-extinction dynamics takes place through recruitment limitation. Colonization and extinction are linked through a simple trade-off. The spatial model is able to reproduce the species-rank and species-area laws obtained from recent studies on rainforest plots. It is shown that percolation thresholds play an important role in limiting diversity once the landscape is broken into many patches. The multiplicity of states implicit in the model leads to a strong path-dependence in the system, making predictions about the extinction of particular species very difficult.
Download InfoTo our knowledge, this item is not available for download. To find whether it is available, there are three options:
1. Check below under "Related research" whether another version of this item is available online.
2. Check on the provider's web page whether it is in fact available.
3. Perform a search for a similarly titled item that would be available.
Bibliographic InfoPaper provided by Santa Fe Institute in its series Working Papers with number 00-12-066.
Date of creation: Dec 2000
Date of revision:
Contact details of provider:
Postal: 1399 Hyde Park Road, Santa Fe, New Mexico 87501
Web page: http://www.santafe.edu/sfi/publications/working-papers.html
More information through EDIRC
You can help add them by filling out this form.
reading list or among the top items on IDEAS.Access and download statisticsgeneral information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Thomas Krichel).
If references are entirely missing, you can add them using this form.