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The complete mitochondrial genome of common Shelduck Shengjin Lake Tadorna tadorna.

ABSTRACT: The complete mtDNA of Shengjin Lake Tadorna tadorna 16622?bp in length, containing 13 protein-coding genes, 2 rRNAs, 22 tRNAs and one D-loop. Mitochondrial genes of the Shengjin Lake Tadorna tadorna was arranged in the same order and orientation as those of reported Tadorna tadorna. All the start codon of the protein-coding genes is ATG, TAA is the most frequent stop codon. The 12S rRNA and 16S rRNA genes are located between the tRNA^Leu and tRNA^Phe genes and separated by the tRNA^Val gene. The control region, located between the tRNA^Glu and tRNA^Phe genes and is rich in A and T. Phylogenetic trees show Shengjin Lake Tadorna tadorna has close relative with Cairina moschata.

SUBMITTER: Liu G

PROVIDER: S-EPMC7706780 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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The complete mitochondrial genome of common Shelduck Shengjin Lake Tadorna tadorna.

Liu Gang G Li Qingyue Q Gong Zhizong Z

Mitochondrial DNA. Part B, Resources 20190919 2

The complete mtDNA of Shengjin Lake Tadorna tadorna 16622 bp in length, containing 13 protein-coding genes, 2 rRNAs, 22 tRNAs and one D-loop. Mitochondrial genes of the Shengjin Lake Tadorna tadorna was arranged in the same order and orientation as those of reported Tadorna tadorna. All the start codon of the protein-coding genes is ATG, TAA is the most frequent stop codon. The 12S rRNA and 16S rRNA genes are located between the tRNALeu and tRNAPhe gene ...[more]

PMID: 33365855

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Project description:The coexistence of species with similar ecological niches is one of the core interests of community ecology research. However, how functional feeding traits, including bill size and leg length, determine the niche of mixed flocks of shorebird species has seldomly been studied, as well as, microhabitat variables affect the spatial patterns of availability and the quality of patches for wintering. From October 2016 to March 2017 at Shengjin Lake, Anhui Province, China, we recorded 226 scan samples from the different microhabitats and 93 focal animal videos of four common shorebird species: common greenshank, spotted redshank, Kentish plover, and little ringed plover. We found that the species participating in the mixed groups were different in each microhabitat. The results of the overlap index for microhabitats and foraging techniques between the species were consistent with the morphological characteristics of these species. Kentish and little ringed plovers had the highest Pianka's niche overlap index values of 0.95 and 0.98 for microhabitats and foraging techniques, respectively, whereas common greenshank and spotted redshank had values of 0.78 and 0.89, respectively. Common greenshank and spotted redshank used four foraging techniques: a single probe (PR), multiple probes (MPR), a single peck (PE), and multiple pecks (MPE). Kentish and little ringed plovers only used PE and MPE. The mean bill size, mean leg length, and mean foraging frequency were significantly associated with water depth. The mean bill size and mean leg length were both significantly correlated with the mean foraging frequency of shorebirds. The vegetated area was the most important variable for grouping among shorebirds. We concluded that the four species showed differences in their preferred microhabitats and foraging patterns. Interspecific morphological differences, including bill and leg lengths, resulted in niche differentiation. Thus, effective resource allocation by regional species was realized, and a dynamic balance was achieved by the mixed foraging species. The information on foraging behavior and habitat requirements could be useful in the management of water levels in natural areas and conservation of a diversity of wintering shorebirds.

Dataset Information

The complete mitochondrial genome of common Shelduck Shengjin Lake Tadorna tadorna.

Publications

The complete mitochondrial genome of common Shelduck Shengjin Lake <i>Tadorna tadorna</i>.

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