干旱区生态环境知识资源中心(Arid): Addressing the Linnean shortfall in a cryptic species complex

Arid

DOI	10.1093/zoolinnean/zlaa099
	Addressing the Linnean shortfall in a cryptic species complex
	Walters, Ashley D.; Cannizzaro, Andrew G.; Trujillo, Daniel A.; Berg, David J.
通讯作者	Walters, AD (corresponding author), Miami Univ, Dept Biol, Oxford, OH 45056 USA.
来源期刊	ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN	0024-4082
EISSN	1096-3642
出版年	2021
卷号	192 期号:2 页码:277-305
英文摘要	Biodiversity is being lost at an alarming rate, but the rate of this loss is likely to be underestimated as a result of a deficit in taxonomic knowledge (i.e. the Linnean shortfall). This knowledge gap is more extensive for morphologically indistinct taxa. The advancement of molecular techniques and delimitation methods has facilitated the identification of such cryptic species, but a majority of these taxa remain undescribed. To investigate the effects of taxonomic uncertainty on understanding of biodiversity, we applied the general lineage concept of species to an amphipod species complex, the Gammaruslacustris lineage that occupies springs of the northern Chihuahuan Desert, which is emerging in contemporary times. We investigated species boundaries using a validation-based approach and examined genetic structure of the lineage using a suite of microsatellite markers to identify independently evolving metapopulations. Our results show that each spring contains a genetically distinct population that is geographically isolated from other springs, suggesting evolutionary independence and status as separate species. Additionally, we observed subtle interspecific morphological variation among the putative species. We used multiple lines of evidence to formally describe four new species (Gammarus langi sp. nov., G. percalacustris sp. nov., G. colei sp. nov. and G. malpaisensis sp. nov.) endemic to the northern Chihuahuan Desert. Cryptic speciation is likely to be high in other aquatic taxa within these ecosystems, and across arid landscapes throughout North America and elsewhere, suggesting that the magnitude of the Linnean shortfall is currently underestimated in desert springs worldwide.
英文关键词	biodiversity ecology evolution genetics speciation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000661494900002
WOS关键词	MICROSATELLITE NULL ALLELES ; FRESH-WATER ; CRUSTACEA-AMPHIPODA ; PHYLOGENETIC PERSPECTIVE ; INTEGRATIVE TAXONOMY ; EMPIRICAL-EVALUATION ; NIPHARGUS CRUSTACEA ; POPULATION-GENETICS ; HYALELLA CRUSTACEA ; GAMMARUS CRUSTACEA
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/2XILL650/352015
作者单位	[Walters, Ashley D.] Miami Univ, Dept Biol, Oxford, OH 45056 USA; [Cannizzaro, Andrew G.; Berg, David J.] Miami Univ, Dept Biol, Hamilton, OH USA; [Trujillo, Daniel A.] New Mexico Dept Game & Fish, Santa Fe, NM USA
推荐引用方式 GB/T 7714	Walters, Ashley D.,Cannizzaro, Andrew G.,Trujillo, Daniel A.,et al. Addressing the Linnean shortfall in a cryptic species complex[J],2021,192(2):277-305.
APA	Walters, Ashley D.,Cannizzaro, Andrew G.,Trujillo, Daniel A.,&Berg, David J..(2021).Addressing the Linnean shortfall in a cryptic species complex.ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,192(2),277-305.
MLA	Walters, Ashley D.,et al."Addressing the Linnean shortfall in a cryptic species complex".ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 192.2(2021):277-305.