Niche breadth and the implications of climate change in the conservation of the genus Astrophytum (Cactaceae)

摘要: Abstract The niche breadth of a species reflects its ability to inhabit different conditions, and use resources, hence, with wider are expected be more resilient anthropogenic derived climate change. We estimated the all genus Astrophytum from macro-environmental variables measures local habitat uses, in order evaluate whether having breadths less prone experience unsuitable conditions projected by A1B A2 scenarios IPCC for 2020 2050, analyzed implications projections conservation Astrophytum. Our analysis suggests that most populations four will increasingly due increase temperature reduction precipitation. affected were those situated middle latitudinal range or lower extreme precipitation (A. capricorne A. myriostigma). Although main threats come destruction their habitats activities as illegal extraction, change may reduce chances regeneration success reintroduction programs.