Local demographic rates and Critical Thermal Maximum (CTMax) values of four Eleutherodactylus frogs in Puerto Rico, 2021-2022

We determined the critical thermal maximum (CTMax) of six species of Eleutherodactylus frogs (Eleutherodactylus antillensis, Eleutherodactylus brittoni, Eleutherodactylus cochranae, Eleutherodactylus coqui, Eleutherodactylus juanariveroi, Eleutherodactylus wightmanae) to understand their response to warming temperatures. Data consist of capture history, body condition, and temperature at which the frog exhibited spasms and erratic behavior, which may impair predator avoidance. Our results underscored the potential vulnerability of Eleutherodactylus species exhibiting lower CTMax to the forecasted warming of tropical zones (e.g., E. wightmanae, E. brittoni).

为探究细趾蟾属（Eleutherodactylus）蛙类对升温环境的响应，本研究测定了该属下6个物种种群的临界热最大值（critical thermal maximum, CTMax），涉及物种分别为安的列斯细趾蟾（Eleutherodactylus antillensis）、布里顿细趾蟾（Eleutherodactylus brittoni）、科克伦细趾蟾（Eleutherodactylus cochranae）、科奎细趾蟾（Eleutherodactylus coqui）、胡安里韦罗细趾蟾（Eleutherodactylus juanariveroi）以及怀特曼细趾蟾（Eleutherodactylus wightmanae）。本数据集包含捕获历史记录、身体状况指标，以及蛙类出现痉挛与行为紊乱时的临界温度——此类异常行为可能会削弱其天敌规避能力。研究结果显示，临界热最大值较低的细趾蟾属物种（如怀特曼细趾蟾（E. wightmanae）、布里顿细趾蟾（E. brittoni）），可能更容易受到热带地区预估升温的潜在威胁。