The Conditioned Environmental Center-Periphery Hypothesis of Biogeography: Statistical Evidence From Tree Species.

ABSTRACT: It has been discussed for decades whether species occur most frequently at their geographic center, and more recently at their environmental niches' center. The aim here is to analyze for each environmental gradient separately the ecological niche of 12 Mexican tree species and 16 abiotic environmental gradients, in the form of statistical probability density functions. Is a symmetrically positioned center always possible by searching for additional data? For each species-variable combination, the occurrences along an environmental gradient were grouped in histograms. Logistic regression was used to fit a polynomial equation, whose degree depended on the number of significantly different bins. A highest-probability interval on the gradient was determined, where 25% of the individuals were

SUBMITTER: Antunez P 

PROVIDER: S-EPMC11911017 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature