Global and regional drivers of abundance patterns in the hart's tongue fern complex (Aspleniaceae).

ABSTRACT:

Background and aims

The hart's tongue fern (HTF) complex is a monophyletic group composed of five geographically segregated members with divergent abundance patterns across its broad geographic range. We postulated hierarchical systems of environmental controls in which climatic and land-use change drive abundance patterns at the global scale, while various ecological conditions function as finer scale determinants that further increase geographic disparities at regional to local scales.

Methods

After quantifying the abundance patterns of the HTF complex, we estimated their correlations with global climate and land-use dynamics. Regional determinants were assessed using boosted regression tree models with 18 potential ecological variables. Moreover, we investigated long-term

SUBMITTER: Heo N 

PROVIDER: S-EPMC10184436 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature