Contribution of source–sink theory to protected area science

摘要: The concept of source–sink population dynamics may be especially relevant to protected areas. Places set aside as nature reserves often have steep gradients in climate, topography, and other abiotic factors that result spatially explicit occurring within them. Protected areas are also frequently placed relatively extreme parts the landscape with regard soils, elevation, water. Consequently, occur between more moderate surrounding landscape. goal this chapter is evaluate contribution theory has made understanding viability around A review literature for past 20 years indicates been applied primarily three ways. sinks some species, due biophysical conditions These sink populations vulnerable loss source unprotected lands. Land use intensification drive degradation these sources reduce species area. become “attractive” human activities lead population. Large carnivores appear dynamic. serve supplement hunted or fished Many marine designated a means allowing sustainable fisheries waters. I summarize conceptual basis each scenarios, provide examples, draw implications conservation management.