干旱区生态环境知识资源中心(Arid): Thin-skinned invaders: geographic variation in the structure of the skin among populations of cane toads (Rhinella marina)

Arid

DOI	10.1093/biolinnean/blaa128
	Thin-skinned invaders: geographic variation in the structure of the skin among populations of cane toads (Rhinella marina)
	Kosmala, Georgia K.; Brown, Gregory P.; Shine, Richard
通讯作者	Shine, R (corresponding author), Univ Sydney, Sch Life & Environm Sci, Sydney, NSW 2006, Australia. ; Shine, R (corresponding author), Macquarie Univ, Dept Biol Sci, Sydney, NSW 2109, Australia.
来源期刊	BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN	0024-4066
EISSN	1095-8312
出版年	2020
卷号	131 期号:3 页码:611-621
英文摘要	The structure of the skin may evolve rapidly during a biological invasion, for two reasons. First, novel abiotic challenges such as hydric conditions may modify selection of traits (such as skin thickness) that determine rates of evaporative water loss. Second, invaders might benefit from enhanced rates of dispersal, with locomotion possibly facilitated by thinner (and hence more flexible) skin. We quantified thickness of layers of the skin in cane toads (Rhinella marina) from the native range (Brazil), a stepping-stone population (Hawaii), and the invaded range in Australia. Overall, the skin is thinner in cane toads in Australia than in the native range, consistent with selection on mobility. However, layers that regulate water exchange (epidermal stratum corneum and dermal ground substance layer) are thicker in Australia, retarding water loss in hot dry conditions. Within Australia, epidermal thickness increased as the toads colonized more arid regions, but then decreased in the arid Kimberley region. That curvilinearity might reflect spatial sorting, whereby mobile (thin-skinned) individuals dominate the invasion front; or the toads' restriction to moist sites in this arid landscape may reduce the importance of water-conservation. Further work is needed to clarify the roles of adaptation versus phenotypic plasticity in generating the strong geographic variation in skin structure among populations of cane toads.
英文关键词	Bufo marinus dispersal integument invasion skin stratum water balance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000605985700012
WOS关键词	BUFO-MARINUS ; WATER-LOSS ; DISPERSAL BEHAVIOR ; EVOLUTION ; AMPHIBIA ; ANURA ; ADAPTATIONS ; COLORATION ; SECRETIONS ; INVASION
WOS类目	Evolutionary Biology
WOS研究方向	Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348750
作者单位	[Kosmala, Georgia K.; Brown, Gregory P.; Shine, Richard] Univ Sydney, Sch Life & Environm Sci, Sydney, NSW 2006, Australia; [Brown, Gregory P.; Shine, Richard] Macquarie Univ, Dept Biol Sci, Sydney, NSW 2109, Australia
推荐引用方式 GB/T 7714	Kosmala, Georgia K.,Brown, Gregory P.,Shine, Richard. Thin-skinned invaders: geographic variation in the structure of the skin among populations of cane toads (Rhinella marina)[J],2020,131(3):611-621.
APA	Kosmala, Georgia K.,Brown, Gregory P.,&Shine, Richard.(2020).Thin-skinned invaders: geographic variation in the structure of the skin among populations of cane toads (Rhinella marina).BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,131(3),611-621.
MLA	Kosmala, Georgia K.,et al."Thin-skinned invaders: geographic variation in the structure of the skin among populations of cane toads (Rhinella marina)".BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 131.3(2020):611-621.