50 Years of Cetacean Strandings Reveal a Concerning Rise in Chilean Patagonia.

摘要: Cetacean strandings (CS) have been reported in increasing numbers coastal areas worldwide. Although the causes of these are unknown, a number anthropogenic and environmental factors suggested. This paper aims to characterize CS patterns describe their fine-scale spatiotemporal dynamics. We analysed spatial Chile from January 1968 2020. identified total 436 events affecting eight cetacean families, 21 genera, 35 species, which represent more than 85% species richness for country. Most (94.1%) were single (i.e., ≤two individuals). There also 18 mass stranding (three 24 individuals, 4.1%) nine unusually large (>25 2%). Purely tests showed appearing random occurrence along Chilean coast. Local spatio-temporal clusters, however, greater hotspots southernmost part country, namely, Patagonia. Specifically, significant clusters defined as containing three or individuals within two-month period focal event (<1 km radius). It is cause concern that consistently over last decades, although we not able identify causes, highlight importance changes climate conditions an increase monitoring activities primary drivers such patterns, particularly important