Flores Carlos A, Arreortúa Medardo, González-Bernal Edna
CIIDIR Unidad Oaxaca, Instituto Politécnico Nacional, Laboratorio de Ecología de Anfibios (ECA), Hornos 1003, Col. Noche Buena, 71230, Santa Cruz Xoxocotlán, Oaxaca, Mexico CIIDIR Unidad Oaxaca, Instituto Politécnico Nacional Santa Cruz Xoxocotlán Mexico.
CONACYT - CIIDIR Unidad Oaxaca, Instituto Politécnico Nacional, Laboratorio de Ecología de Anfibios (ECA). Hornos 1003, Col. Noche Buena, 71230, Santa Cruz Xoxocotlán, Oaxaca, Mexico CONACYT - CIIDIR Unidad Oaxaca, Instituto Politécnico Nacional Santa Cruz Xoxocotlán Mexico.
Zookeys. 2022 Apr 21;1097:117-132. doi: 10.3897/zookeys.1097.76426. eCollection 2022.
Although amphibian consumption by humans has been reported globally, this practice is not well studied despite its direct implications to the decline of amphibian populations. The International Union for Conservation of Nature (IUCN) recognizes the need to document the use and trade of species to be considered in assessing their extinction risk. Here the consumption of tadpoles is documented. It is a micro endemic species categorized as Near Threatened (NT) consumed in a traditional dish called "caldo de piedra" (stone soup) prepared by the Chinantec people (Tsa Ju Jmí') in Oaxaca, Mexico. Through conversations with local people and stream monitoring, the behavior of tadpoles of this species was documented and aspects of their exploitation and habitat use described. Places where caldo de piedra is still consumed were determined and using a spatial analysis with Geographic Information Systems, the distribution of the species in relation to those localities was analyzed. A number of other areas where tadpoles of this species might also occur and be exploited is predicted. In conclusion, the school behaviour, surface feeding, and the preference for deeper waterbodies that these tadpoles exhibit makes them vulnerable to being caught in large quantities. As they are consumed locally, are not commercialized, and the species distribution range is wider than caldo de piedra consumption, this implies a low risk for their populations. However, the tadpoles' reliance on streams with depths x̄ = 60 cm and flux x̄ = 0.65 m/s reduces the availability of sites for their optimal development.
尽管全球都有关于人类食用两栖动物的报道，但这种行为尽管对两栖动物种群数量下降有直接影响，却并未得到充分研究。国际自然保护联盟（IUCN）认识到有必要记录物种的使用和贸易情况，以便在评估其灭绝风险时加以考虑。本文记录了蝌蚪的食用情况。它是一种微型特有物种，被列为近危（NT）物种，在墨西哥瓦哈卡州奇南特克人（Tsa Ju Jmí'）制作的传统菜肴“caldo de piedra”（石汤）中被食用。通过与当地人交谈和溪流监测，记录了该物种蝌蚪的行为，并描述了它们的 exploited 和栖息地利用情况。确定了仍有食用石汤的地方，并使用地理信息系统进行空间分析，分析了该物种相对于这些地方的分布情况。预测了该物种蝌蚪可能出现并被 exploited 的其他一些区域。总之，这些蝌蚪表现出的集群行为、水面觅食以及对较深水体的偏好，使它们容易被大量捕获。由于它们是在当地被食用，没有商业化，且物种分布范围比石汤消费范围更广，这意味着其种群面临的风险较低。然而，蝌蚪对深度 x̄ = 60 厘米、流量 x̄ = 0.65 米/秒的溪流的依赖降低了其最佳发育地点的可用性。
