Effects of Habitat Fragmentation on Biodiversity¶
Fahrig, L. (2003). Effects of Habitat Fragmentation on Biodiversity. Annual Review of Ecology, Evolution, and Systematics, 34, 487-515.
Cited by¶
2 citations across 2 artifacts.
Each citation links to the sentence it supports in the citing article.
Primes¶
- Coarsening
- Ecology and information: forest-patch consolidation as small patches lose biodiversity faster; vocabulary and ontology consolidation as sparsely-used categories are absorbed into larger neighbours when per-category maintenance cost outweighs bulk usage.
This sourceReviews edge-to-area effects and patch-size dependence of biodiversity loss — small habitat patches lose species faster, the ecological analogue of the small-unit boundary penalty.
Supported in partVerified against the publisher's abstract
Fahrig's abstract backs only that habitat loss has large negative effects on biodiversity; it calls fragmentation per se weak, often positive, and never states small patches lose species faster.
“Empirical studies to date suggest that habitat loss has large, consistently negative effects on biodiversity. Habitat fragmentation per se has much weaker effects on biodiversity that are at least as likely to be positive as negative.”
- Ecology and information: forest-patch consolidation as small patches lose biodiversity faster; vocabulary and ontology consolidation as sparsely-used categories are absorbed into larger neighbours when per-category maintenance cost outweighs bulk usage.
- Connectedness
- Infrastructure and logistics. Transport networks, power grids, supply chains, and the internet are usable only insofar as origin and destination lie in the same connected component; severing one edge can split a system into mutually unreachable halves. Biology and ecology. Habitats are connected when a population can move between patches; fragmentation produces isolated subpopulations that drift independently and face higher extinction risk.
Supported in partVerified against the publisher's abstract
Fahrig (2003) defines habitat fragmentation as involving habitat loss and the breaking apart of habitat, but its abstract attributes negative biodiversity effects mainly to habitat loss, not fragmentation per se.
“Habitat fragmentation is usually defined as a landscape-scale process involving both habitat loss and the breaking apart of habitat.”
- Infrastructure and logistics. Transport networks, power grids, supply chains, and the internet are usable only insofar as origin and destination lie in the same connected component; severing one edge can split a system into mutually unreachable halves. Biology and ecology. Habitats are connected when a population can move between patches; fragmentation produces isolated subpopulations that drift independently and face higher extinction risk.
Verification¶
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