Forest Fragmentation Increases Nest Predation in the Eurasian Treecreeper

Article Abstract:

Research indicates that net loss in Eurasian treecreeper (Certhia familiaris) populations from predation is nearly three times higher in landscapes with greater degrees of fragmentation than those with lesser degrees of fragmentation. Predation rate was also positively correlated with edge density between open land and forest. Results emphasize the importance of spatial scale in modeling predation.

Environmental aspects, Protection and preservation, Birds, Protection of, Predation (Biology), Bird conservation, Passeriformes, Perching birds, Habitat partitioning (Biology), Habitat partitioning (Ecology), Eurasia

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Genetic diversity, population size, and fitness in central and peripheral populations of a rare plant Lychnis viscaria

Article Abstract:

Research presented concerns the ecology and genetics of Lychnis viscaria, a rare perennial plant, focusing on the genetic diversity of populations within the plant's distribution area. Topics examined include the differences between central and peripheral populations with regard to genetic variation, isolation, population size, and plant fitness.

Statistical Data Included, Genetic aspects, Plant population genetics, Rare plants, Plant populations

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Population persistence and offspring fitness in the rare bellflower Campanula cervicaria in relation to population size and habitat quality

Article Abstract:

The effect of population size on persistence among natural populations of the rare bellflower Campanula cervicaria in Finland is studied. The result of the study reveals that decreasing population size is not due to lowered germination ability or growth rate in small populations but due to closing of vegetation in the habitats.

Plant conservation, Campanulaceae

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