Much has been written about the role of interspecific competition, disease, herbivory, and
the loss of key mutualisms in the extinction of rare plant species. Interspecific hybridization …

In this comprehensive review, a range of factors is considered that may influence the
significance of genetic diversity for the survival of a population. Genetic variation is essential …

Island biogeography is the study of the distribution and dynamics of species in island
environments. Due to their isolation from more widespread continental species, islands are …

Allee effects may be experienced by plants when populations are too small or isolated to
receive sufficient pollinator services to replace themselves. This article reports experimental …

In reward—producing animal—pollinated plants, small populations are likely to be less
attractive to pollinators than large populations. The likelihood of pollinator limitation of seed …

Demographic modeling is used to understand the population viability of Furbish's lousewort,
Pedicularis furbishiae, a perennial plant species endemic to the St. John River Valley in …

Habitat fragmentation is one of the most ubiquitous and serious environmental threats
confronting the long-term survival of plant and animal species worldwide. As species …

The desert tortoise is a threatened species living in the deserts of the American Southwest.
Using size—structured demographic models, we analyzed the status of the tortoise in the …

Wild populations face threats both from deterministic factors, eg, habitat loss,
overexploitation, pollution, and introduced species, and from stochastic events of a …

We summarize the problems that populations of formerly common plants may encounter
when habitat fragmentation isolates them and reduces population size. Genetic erosion …