Q. (2015). Molecular phylogeny and the underestimated species diversity of the endemic white-bellied rat (Rodentia: Muridae: Niviventer) in Southeast Asia and China. -Zoologica Scripta, 44, 475-494.The white-bellied rat, Niviventer, is a genus endemic to Southeast Asia and China. However, the interspecific phylogenetic relationships and species diversity of this genus remain poorly understood. In the present study, single and multi-locus analyses were performed. Phylogenetic reconstruction on Cytochrome b (512 individuals, including data from Genbank) revealed five major clades with approximately 35 operational taxonomic units (OTUs), a number twice the existing taxonomy. The first clade (N. langbianis species group) was the earliest diverged. The second clade (N. fulvescens species group) diverged in Southeast Asia, the south and lower altitude regions of the Hengduan Mountains, and Southeast China. The third clade (the N. eha species group) is endemic to high altitudes in Northwest Yunnan and the central region of Himalaya. The fourth clade (the N. andersoni species group), is mainly confined to alpine regions of the Hengduan Mountains. The fifth clade (N. confucianus species group) is mainly distributed in the north and higher altitude regions of eastern Himalaya, the Hengduan Mountains and Taiwan, with the complex also invading central and northern China. Results from the combined dataset of four genes (Cytochrome b, Cytochrome oxidase subunit I, the D-loop sequence of the mitochondrial genome and the first exon of the nuclear interphotoreceptor retinoid binding protein) for 82 representative individuals from China generally coincide with the result of the single gene, with 12 OTUs identified. These results provide a preliminary framework for the existing classification of this highly diversified genus. The divergence time of Niviventer based on the four gene topology was dated to the late Miocene~6.41 Ma. Significant differences were detected in the general body form changes among these units based on voucher specimens. Moreover, geometric morphometric analysis of the cranium shape of voucher specimens indicated significant differences among five major species groups. Shape divergence of the cranium among several OTUs within the N. confucinaus complex is also significant. Our results provide further evidence for rapid and highly underestimated diversification of Niviventer both in genetics and morphology.
Wohlfahrtiimonas chitiniclastica bacilli that live in the larvae of a parasitic fly were recently isolated and are speculated to be the cause of fulminant sepsis. Here we report and analyze the complete genome sequence of Wohlfahrtiimonas chitiniclastica strain SH04. No complete genome sequence of a Wohlfahrtiimonas chitiniclastica isolate has been documented previously.
The Mediterranean Basin is a global biodiversity hotspot, but formal conservation approaches have not been wholly effective to halt species and ecosystem losses in this world region. There is wide agreement that maintaining traditional and diverse land-use systems is key to conserving biodiversity across the Mediterranean region. Biocultural approaches provide a perspective to understand and manage the interplay of nature and culture in various contexts. To develop biocultural systems as positive alternatives to unsustainable land-use systems requires an understanding of the decision-making contexts that enable such approaches. The aim of this synthesis study is therefore to compare how four biocultural conservation systems in the Mediterranean are shaped by values, rules, and knowledge. Our study is based on a synthesis of the literature published on agdal (Morocco), communal forests (Spain), sacred natural sites (Greece), and hima (Lebanon). Our synthesis shows that instrumental, intrinsic, and relational values are all fundamental components of the systems studied. Instrumental values, such as the provision of fodder or firewood, are central, and are often the result of a careful adaptation to the uncertainty inherent to Mediterranean climatic conditions. Systems like agdal and hima have originally been shaped by informal rules (often with the primary motivation to ensure equitable resource use and frequently involving taboos) and were then formalized to varying degrees. All four systems are strongly driven by local knowledge. We conclude that biocultural systems in the Mediterranean represent “people and nature” approaches that support linkages between nature and human well-being. Fostering biocultural conservation in the Mediterranean requires navigating multiple interlinkages between values, rules, and knowledge in decision-making.
S U M M A R YThe female and nymph of Ixodes (Pholeoixodes) kangdingensis n. sp. are described based on both morphology and analysis of 16S rRNA gene sequences. Specimens of this new tick species were collected from a Siberian weasel (Mustela sibirica) in Kangding County, Sichuan Province, China. The morphological features of the female and nymph are unique to distinguish I. kangdingensis n. sp. from other members of the subgenus Pholeoixodes, including the presence of distinctly shaped cornua, anterior and posterior processes on palpal article I and a large angular projection on each side of the hypostome. Partial sequence of 16S rRNA gene grouped this species with Ixodes arboricola and Ixodes lividus with sequence divergence of new species from I. arboricola 4·16% and from I. lividus 8·49%. Data on the phylogenetic position, hosts, geographic distribution and key to females of closely related species are also provided.
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