干旱区生态环境知识资源中心(Arid): Batrachochytrium dendrobatidis in the Arid and Thermally Extreme Sonoran Desert

Arid

DOI	10.1007/s10393-023-01668-1
	Batrachochytrium dendrobatidis in the Arid and Thermally Extreme Sonoran Desert
	Roth, Sadie A.; Griffis-Kyle, Kerry L.; Barnes, Matthew A.
通讯作者	Roth, SA
来源期刊	ECOHEALTH
ISSN	1612-9202
EISSN	1612-9210
出版年	2023
卷号	20 期号:4 页码:370-380
英文摘要	Batrachochytrium dendrobatidis (Bd), the causative agent of the devastating global amphibian disease chytridiomycosis, was not projected to threaten amphibians in hot and arid regions due to its sensitivity to heat and desiccation. However, Bd is being detected more frequently than ever in hot and arid regions of Australia and the USA, challenging our current understanding of the environmental tolerances of the pathogen under natural conditions. We surveyed for Bd in an extremely hot and arid portion of the Sonoran Desert, where the pathogen is not projected to occur, and related presence and prevalence of the pathogen to local environmental conditions. We collected eDNA samples from isolated desert water sites including six tinajas and 13 catchments in June and August of 2020 and swabbed a total of 281 anurans of three species (red-spotted toad Anaxyrus punctatus, Couch's spadefoot Scaphiopus couchii, and the Sonoran Desert toad Incillius alvarius) across five catchments and six tinajas from June to September of 2020. Overall, Bd occurred at 68.4% of sites, despite extreme heat and aridity routinely exceeding tolerances established in laboratory studies. Average summer maximum air and water temperatures were 40.7(degrees)C and 30.7(degrees)C, respectively, and sites received an average of just 16.9 mm of precipitation throughout the summer monsoon season. Prevalence was low (5.7%) across species and life stage. Our results demonstrate that Bd is capable of persisting and infecting amphibians beyond its projected range, indicating a need to account for higher thermal tolerances when quantifying risk of Bd presence and infection.
英文关键词	Batrachochytrium dendrobatidis Disease monitoring Amphibians Environmental DNA (eDNA) Physiological tolerances Ephemeral waters
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001145184900001
WOS关键词	AMPHIBIAN CHYTRID FUNGUS ; HIGH PREVALENCE ; DENDROBATIDIS ; PATHOGEN ; CHYTRIDIOMYCOSIS ; TEMPERATURE ; PATTERNS ; DISEASE ; LIFE ; PERSISTENCE
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395887
推荐引用方式 GB/T 7714	Roth, Sadie A.,Griffis-Kyle, Kerry L.,Barnes, Matthew A.. Batrachochytrium dendrobatidis in the Arid and Thermally Extreme Sonoran Desert[J],2023,20(4):370-380.
APA	Roth, Sadie A.,Griffis-Kyle, Kerry L.,&Barnes, Matthew A..(2023).Batrachochytrium dendrobatidis in the Arid and Thermally Extreme Sonoran Desert.ECOHEALTH,20(4),370-380.
MLA	Roth, Sadie A.,et al."Batrachochytrium dendrobatidis in the Arid and Thermally Extreme Sonoran Desert".ECOHEALTH 20.4(2023):370-380.