Investigation of the Peninsula Effect Using the Latitudinal Abundance Pattern for Tree Species in Florida

摘要: The peninsula effect is a biological diversity pattern found in peninsulas which the number of species decreases toward tip peninsula. geometry hypothesis, as one proposed cause effect, attempts to predict this by examining peculiarities peninsular geometry. As are characterized their isolated positions, it has been suggested that decreased immigration-to-extinction rate decrease from base We aimed test hypothesis on tree Florida modeling latitudinal abundance using sample-based inventory data. postulated current distribution ramification past immigration–extinction dynamics peninsula, well an important indicator such future. patterns 113 southeastern United States were simulated with Huisman–Olff–Fresco (HOF) model USDA Forest Service’s Inventory and Analysis (FIA) database. Evidence for then selected if was asymmetric its maxima occurring within (i.e., approximately 31.5° latitude or lower). Our HOF results most (87% species) did not experience any steep decline along when compared general trend across range, suggesting observed could merely be continuation gradients States, independent