Climate-Driven Range Extension of Amphistegina (Protista, Foraminiferida): Models of Current and Predicted Future Ranges

摘要: Species-range expansions are a predicted and realized consequence of global climate change. Climate warming the poleward widening tropical belt have induced range shifts in variety marine terrestrial species. Range may broad implications on native biota ecosystem functioning as shifting species perturb recipient communities. Larger symbiont-bearing foraminifera constitute ubiquitous prominent components shallow water ecosystems, these important protists likely to trigger changes functioning. We used historical newly acquired occurrence records compute current Amphistegina spp., larger foraminifera, along eastern coastline Africa compare them analogous currently observed Mediterranean Sea. The study provides new evidence that amphisteginid rapidly progressing southwestward, closely approaching Port Edward (South Africa) at 31°S. To project future distributions, we applied distribution model (SDM) based ecological niche constraints ranges. Our indicates further is cause continued extension, predicts dispersal nearly entire southeastern coast Africa. average rates shift were computed between 8 2.7 km year−1, projected lead total southward expansion 267 km, or 2.4° latitude, year 2100. results corroborate findings from fossil record some cope well with rising temperatures beneficiaries