干旱区生态环境知识资源中心(Arid): GOPHERUS AGASSIZII

Arid

DOI	10.2172/776442
报告编号	MOL.19980319.0468
来源ID	OSTI_ID: 776442
	GOPHERUS AGASSIZII
	Boone, James L.; Rakestraw, Danny L.; Rautenstrauch, Kurt R.
英文摘要	GOPHERLTS AGAISSIZII (Desert Tortoise). Predation. A variety of predators, most notably coyotes (Canis Iatrans) and Common Ravens (Corvis corau) have been reported to prey on hatchling desert tortoises (Emst et al. 1994). Turtles of the United States and Canada (Smithsonian Institution Press, Washington, D.C. 578 pp.). Here, we report an observation of a hatchling tortoise, fitted with a radiotransmitter, that was preyed upon by native fire ants (Solenopsis sp.) in the eastern Mojave Desert at Yucca Mountain, Nevada (36 degrees 50 minutes N, 116 degree 25 minutes E). On 8/27/94, tortoise No.9315 (carapace length = 45 mm, age = 5 d) was found alive with eyes, chin, and parts of the head and legs being eaten by ants. The tortoise was alive, but lethargic, and responded little when touched. Eight of 74 other radiomarked hatchlings monitored at Yucca Mountain during 1992-1994 were found dead with fire ants on their carcass 3-7 days after the hatchlings emerged from their nests. It is not known whether those tortoises were killed by ants or were being scavenged when found. While imported fire ants (S. invicta) have long been known to kill hatchling gopher tortoises (G. polyphemus; Mount 1981. J. Alabama Acad. Sci. 52: 71-78), native fire ants have previously not been implicated as predators of desert tortoises. However, only 1 of 75 (or at worst 9 of 75) was killed by fire ants, suggesting that although fire ants do kill hatchlings, they were not important predators on desert tortoises during this study. Tortoise specimens were deposited at the University of California at Berkeley.
出版年	1997
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES ; ALABAMA ; ANTS ; CALIFORNIA ; CANADA ; COYOTES ; DESERTS ; EYES ; LEGS ; TURTLES ; YUCCA MOUNTAIN
URL	http://www.osti.gov/scitech/servlets/purl/776442
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/267371
推荐引用方式 GB/T 7714	Boone, James L.,Rakestraw, Danny L.,Rautenstrauch, Kurt R.. GOPHERUS AGASSIZII,1997.