干旱区生态环境知识资源中心(Arid): Carapacial Shell Disease Process Revealed by a Long-term Field Study of the Yellow Mud Turtle, Kinosternon flavescens, in Texas

Arid

DOI	10.1670/19-032
	Carapacial Shell Disease Process Revealed by a Long-term Field Study of the Yellow Mud Turtle, Kinosternon flavescens, in Texas
	Christiansen, James L.1; Davis, Drew R.1,2; Jacobson, Elliott R.3; LaDuc, Travis J.1
通讯作者	LaDuc, Travis J.
来源期刊	JOURNAL OF HERPETOLOGY
ISSN	0022-1511
EISSN	1937-2418
出版年	2020
卷号	54 期号:1 页码:1-8
英文摘要	While shell diseases may be often encountered in captive aquatic turtles maintained in less than optimum conditions, cases of nonulcerating shell disease in wild populations are rare. We discovered lesions on the carapace of individual Kinosternon flavescens (Yellow Mud Turtle) adapted to a highly aquatic existence in the artificial ponds of a cattle ranch in the Chihuahuan Desert of west Texas. Because the carapacial lesions seemed to represent a continuum of a single process, we followed the gross changes in the lesions on turtles over a 13-yr period, testing the hypothesis that we were seeing a progressive shell disease. We confirmed our working hypothesis as we observed Arnoldiella chelonum, a common, filamentous alga, protruding from enlarged pores in newly formed shell and growing under translucent shell lamellae. As the disease advanced, our gross and histological studies revealed that algae were found between more of the shell lamellae, eventually culminating with sloughing of lamellae. Erosion of lamellae led to a localized but complete loss of portions of the scute and exposure of underlying bone. We provide data on the occurrence of this condition among the marked population and progression of the lesions to more-severe forms in individual turtles. Studies of specimens in research collections provided evidence of our observed disease process in K. flavescens across time and throughout the distribution of the species in Texas. We suggest that, by capitalizing on permanent artificial water sources, K. flavescens has serendipitously allowed A. chelonum to invade and damage the nonliving portion of the shell.
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000513005100001
WOS关键词	MELANOMACROPHAGES ; HISTORY ; DESERT
WOS类目	Zoology
WOS研究方向	Zoology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314976
作者单位	1.Univ Texas Austin, Dept Integrat Biol, Biodivers Collect, Austin, TX 78758 USA; 2.Univ Texas Rio Grande Valley, Sch Earth Environm & Marine Sci, South Padre Isl, TX 78597 USA; 3.Univ Florida, Coll Vet Med, Gainesville, FL 32610 USA
推荐引用方式 GB/T 7714	Christiansen, James L.,Davis, Drew R.,Jacobson, Elliott R.,et al. Carapacial Shell Disease Process Revealed by a Long-term Field Study of the Yellow Mud Turtle, Kinosternon flavescens, in Texas[J],2020,54(1):1-8.
APA	Christiansen, James L.,Davis, Drew R.,Jacobson, Elliott R.,&LaDuc, Travis J..(2020).Carapacial Shell Disease Process Revealed by a Long-term Field Study of the Yellow Mud Turtle, Kinosternon flavescens, in Texas.JOURNAL OF HERPETOLOGY,54(1),1-8.
MLA	Christiansen, James L.,et al."Carapacial Shell Disease Process Revealed by a Long-term Field Study of the Yellow Mud Turtle, Kinosternon flavescens, in Texas".JOURNAL OF HERPETOLOGY 54.1(2020):1-8.