Integrative taxonomy reveals cryptic diversity in North American Lasius ants, and an overlooked introduced species

被引:8
作者
Schar, Sami [1 ]
Talavera, Gerard [2 ]
Rana, Jignasha D. [3 ]
Espadaler, Xavier [4 ,5 ]
Cover, Stefan P. [6 ]
Shattuck, Steven O. [6 ]
Vila, Roger [1 ]
机构
[1] UPF, CSIC, Inst Biol Evolut, Passeig Maritim Barceloneta 37, Barcelona 08003, Catalonia, Spain
[2] CSIC Ajuntament Barcelona, IBB, Inst Bot Barcelona, Passeig Migdia S-N, Barcelona 08038, Catalonia, Spain
[3] George Washington Univ, Dept Biol Sci, 800 22nd St NW,Suite 6000, Washington, DC 20052 USA
[4] Univ Autonoma Barcelona, Fac Ciencies, CREAF, Bellaterra 08193, Spain
[5] Univ Autonoma Barcelona, Fac Ciencies, Unitat Ecol, Bellaterra 08193, Spain
[6] Harvard Univ, Museum Comparat Zool, 26 Oxford St, Cambridge, MA 02138 USA
基金
瑞士国家科学基金会;
关键词
HYMENOPTERA-FORMICIDAE; PHYLOGENY; ALBERTA; IMPACT; NIGER;
D O I
10.1038/s41598-022-10047-9
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Biological invasions are a grave threat to ecosystems. The black garden ant (Lasiusniger) is a pest species in Europe. Current literature states that L. niger occupies a disjunct native distribution in the Holarctic, however, based on recent work, we re-evaluate this distribution. The native range of L. niger is reconsidered based on phylogenetic relationships (nine mitochondrial and nuclear markers, 5670 bp), DNA-barcoding (98 Holarctic specimens), morphometry (88 Holarctic specimens, 19 different measurements) and subjective assessment of phenotype. The potential spread of this species is estimated using ecological niche modeling. Lasius niger is more closely related to other Palearctic species than to the Nearctic ants known under this name. The latter are described as a distinct species, L. ponderosae sp. nov. However, DNA-barcoding discovered established populations of L. niger in metropolitan areas in Canada (Vancouver and Halifax). We describe a morphometrical method to delineate L. ponderosae sp. nov. and L. niger. MtDNA diversity and divergence is high within L. ponderosae sp. nov., but low within L. niger. More than 1,000,000 km(2) are suitable as a habitat for L. niger in North America. This case emphasizes the critical role of integrative taxonomy to detect cryptic species and identify potential biological invasions in their nascent stages.
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页数:12
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