학술논문
Distribution, nymphal habitat, genetic structure and conservation of the New Zealand mayfly Isothraulus abditus(Insecta: Ephemeroptera) and a description of its subimago
Document Type
Article
Author
Source
New Zealand Journal of Zoology; January 2019, Vol. 46 Issue: 1 p13-30, 18p
Subject
Language
ISSN
03014223; 11758821
Abstract
ABSTRACTDistribution, nymphal habitat and genetic structure of the New Zealand mayfly Isothraulus abdituswere investigated to improve our understanding of its ecology and conservation status. A description of the undescribed subimaginal stage is also provided. Isothraulus abditushas now been recorded from 55 North Island streams, 47 being new to published literature. Its distribution currently extends from Mangonui in Northland to Taumatatahi near Whanganui. Nymphs live in forested stream pools and backwaters containing organic detritus. Genetic structure of six populations was assessed using the mitochondrial cytochrome coxidase subunit I (COI) gene. Thirty-six haplotypes were identified from 123 individuals, and a maximum uncorrected genetic distance of 1.8% indicated that specimens belong to a single species. However, those within Northland showed some genetic differentiation. Restricted habitat, sparse distribution and some genetic differentiation of I. abditussuggest its conservation status should be classified as ‘At Risk’.LSID: urn:lsid:zoobank.org:pub:75C386BC-C0A5-4627-AE4B-8C5D749D53BA