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The relative influence of habitat loss, fragmentation and matrix heterogeneity on the viability of populations is a critical area… Expand Abstract We monitored two color-marked populations of the Brown-headed Nuthatch (Sitta pusilla) for ≥5 years and collected data… Expand SummaryThirty groups of red-cockaded woodpeckers (Picoides borealis) were studied from 1976–1982 to (1) determine the demographic… Expand Abstract. Helpers can gain future indirect fitness benefits by increasing the survival of breeders that produce offspring related… Expand Summary 1. Habitat fragmentation may adversely affect animal populations through several mechanisms. However, little is known… Expand We examined the proximate causes of delayed breeding and alloparental behavior in the cooperatively breeding red-cockaded… Expand Anecdotal data gathered from many populations suggest that southern flying squirrel (SFS, Glaucomys volans ) use of the… Expand Spatially-explicit population models allow a link between demography and the landscape. We developed a spatially-explicit… Expand er an 1 l-year period (1983-1993), we examined the southern pine beetle (Dendroctonus frontalis) infestation rate of single Red… Expand The Red-cockaded Woodpecker (Picoides borealis) is a federally endangered species, which inhabits pine forests in the… Expand