Effects of habitat size and patch isolation on reproductive success of the Serpentine Morning Glory

Article Abstract:

Studies done on the effects of habitat area and patch isolation on reproductive success in serpentine morning glory (Calystegia collina [Convolvulaceae], a primarily self-incompatible clonal plant endemic to serpentine outcrops in northern California's coast ranges is discussed. Results indicate that the size of habitat can have strong effects on the reproductive success of locally endemic plants by enhancing opportunities for successful sexual reproduction.

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Influence of habitat patchiness on genetic diversity and spatial structure of a serpentine endemic plant

Article Abstract:

Genotypic diversity in 32 populations of Calystegia collina, a self-incompatible clonal plant endemic to serpentine substrate in northern CaliforniaEs Coast Range, is studied using enzyme electrophoresis. The findings suggest that plant conservation strategies must take into account the natural distribution of populations.

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Fragments as Islands: a Synthesis of Faunal Responses to Habitat Patchiness

Article Abstract:

Studies involving five major faunal taxonomic groups are used to assess habitat fragmentation effects, specifically species composition and nestedness, and impact of isolation and area on species richness. Further studies are recommended.

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