BIL 330 Lecture Notes - Lecture 19: Ecological Niche, Endophyte, Lespedeza Cuneata
Document Summary
Fundamental niche: the range of abiotic conditions (temperature, humidity, salinity, etc) under which a species can persist. Species interactions (competitors, predators, prey availability and pathogens) may prevent a population from persisting in an area. Realized niche: the range in which a species does persist, given its abiotic and biotic constraints. Negative interactions: niche reduction: most studies of realized niche focus on negative species interactions (e. g. competition and predation) Geographic range: the location on earth (continent, latitude, longitude, etc ) that a species is found. Ecological niche modeling/species distribution modeling: the process of determining the suitable habitat conditions for a species. Ecological envelope: the range of ecological conditions that are predicted to be suitable for a species (differs from the realized niche, which describes conditions in which a species currently exists). Predicting the potential geographic range of a species uses a combination of current and historic distributions of species. Ecological niche modeling can predict the expansion of pest species.
