Extinction’s New Face: Habitat Loss & Fragmentation.

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Presentation transcript:

Extinction’s New Face: Habitat Loss & Fragmentation

What is the evidence of habitat loss? Deforestation…

Source:

Deforestation… Is it only limited to the Amazon?

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What are the impacts of decreasing habitat size? We call this habitat fragmentation Are there likely to be any additional problems, beyond simple reduction in area?

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Mean alien species richness, summarized by transect position and aspect. Sample size = 7 for each combination of transect and aspect. Redrawn from Brothers and Spingarn 1992). ( )

Mean frequency of sample transect segments containing alien species (bottom), summarized by transect position and aspect. Sample size = 7 for each combination of transect and aspect. Redrawn from Brothers and Spingarn (1992). ( )