Author
Dmitry A. Sidorov
Bio: Dmitry A. Sidorov is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Genus & Crangonyctidae. The author has an hindex of 8, co-authored 29 publications receiving 231 citations.
Topics: Genus, Crangonyctidae, Gammaridae, Monophyly, Ecology
Papers
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01 Nov 2015
TL;DR: A checklist of the amphipod fauna from continental water bodies, streams and subterranean waters of the Russian Federation is provided (based on data for the end of 2013).
Abstract: A checklist of the amphipod fauna from continental water bodies, streams and subterranean waters of the Russian Federation is provided (based on data for the end of 2013). Species are divided into 11 ecological and biogeographic groups: Holarctic, West Palearctic, Baltic Sea Estuarine, Siberia-Pacific Coast (East Palearctic), Amphi-Pacific, Caucasus, Central Asiatic and Baikalian, and three groups of escapees (emigrants) from the Baikalian, Ponto-Caspian and Arctic Oceans. Twenty-six families, 110 genera and 581 species and subspecies are reported. Species that constitute the autochthonous complex of Lake Baikal comprise 61% of the fauna (276 species, and 78 subspecies). The current taxonomic and the nomenclatural problems of amphipods from the Baikalian and Caspian groups are discussed. A separate list of alien species (or invaders) for continental waters of Russia is provided. РЕЗЮМЕ. Приведен таксономический контрольный список видов амфипод, зарегистрированных в континентальных водоемах, водотоках и подземных водах Российской Федерации (по данным на конец 2013 г.). Виды подразделены на 11 эколого-биогеографических групп: голарктические, западно-палеарктические, балтийские эстуарные, сибирско-тихоокеанского региона (восточно-палеарктические), амфипацифические, кавказские, центрально-азиатские, байкальские, эмигранты из Байкала, виды понто-каспийского происхождения, эмигранты из Северного Ледовитого океана. На данный момент отмечено 26 семейств, 110 родов и 581 вид и подвид амфипод. На виды, составляющие автохтонный комплекс озера Байкал, приходится 61% состава фауны (276 видов и 78 подвидов). Даны пояснения, касающиеся современных проблем таксономии и номенклатуры байкальских и каспийских амфипод. Отдельно приведен список чужеродных видов, или видов-вселенцев в континентальные водоемы регионов России вне их первоначального ареала.
53 citations
TL;DR: It is indicated that crangonyctids originated during the Early Cretaceous in a northerly temperate area comprising nowadays North America and Europe, supporting the Laurasian origin hypothesis and an ideal model for testing continental-level vicariance hypotheses.
38 citations
TL;DR: The research confirms that the studied species of Crangonyctidae share a common ancestor, which was probably widespread in the Northern hemisphere well before the break up of Laurasia and supports the hypothesis of the Trans-Atlantic land bridge between Greenland and Iceland which might have persisted until 6 million years ago.
25 citations
TL;DR: This study deals with taxonomic problems of the semi-subterranean crangonyctid amphipod Synurella ambulans, well-known from various freshwater habitats in Europe.
Abstract: This study deals with taxonomic problems of the semi-subterranean crangonyctid amphipod Synurella ambulans (F. Muller, 1846), well-known from various freshwater habitats in Europe. The taxonomy of the species S. ambulans and the generic diagnosis for the genus Synurella are revised. A new synonymy is proposed: Synurella ambulans (F. Muller, 1846) = Synurella ambulans meschtscherica Borutzky, 1929, syn. nov. The affinity with the related groups, distribution and ecology of the species are examined.
14 citations
TL;DR: The affinity of the new species to its congeners is discussed, emphasizing morphological and biogeographical relationships.
Abstract: Procrangonyx stygoedincus n. sp. (Amphipoda, Pseudocrangonyctidae) is described from subterranean fresh waters of the Edinka River basin, Primory territory, Russia. The affinity of the new species to its congeners is discussed, emphasizing morphological and biogeographical relationships. Procrangonyx stygoedincus n. sp., Amphipoda, Pseudocrangonyctidae est decrit des eaux douces souterraines du bassin du fleuve Edinka, territoire de Primory, Russie. Les affinites entre cette nouvelle espece et ses congeneres sont discutees en insistant sur les relations morphologiques et bio-geographiques.
12 citations
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Journal Article•
TL;DR: A variety of local and relaxed clock methods have been proposed and implemented for phylogenetic divergence dating as discussed by the authors, which allows different molecular clocks in different parts of the phylogenetic tree, thereby retaining the advantages of the classical molecular clock while casting off the restrictive assumption of a single, global rate of substitution.
Abstract: The estimation of phylogenetic divergence times from sequence data is an important component of many molecular evolutionary studies. There is now a general appreciation that the procedure of divergence dating is considerably more complex than that initially described in the 1960s by Zuckerkandl and Pauling (1962, 1965). In particular, there has been much critical attention toward the assumption of a global molecular clock, resulting in the development of increasingly sophisticated techniques for inferring divergence times from sequence data. In response to the documentation of widespread departures from clocklike behavior, a variety of local- and relaxed-clock methods have been proposed and implemented. Local-clock methods permit different molecular clocks in different parts of the phylogenetic tree, thereby retaining the advantages of the classical molecular clock while casting off the restrictive assumption of a single, global rate of substitution (Rambaut and Bromham 1998; Yoder and Yang 2000).
707 citations
Posted Content•
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TL;DR: A state rarity rank of S2S3 means: Imperiled or Vulnerable in New York Very vulnerable to disappearing from New York, or vulnerable to becoming imperiled, due to rarity or other factors; typically 6 to 80 populations or locations in Manhattan, few individuals, restricted range, few remaining acres (or miles of stream), and/or recent and widespread declines.
Abstract: A global rarity rank of G4 means: Apparently secure globally, though it may be quite rare in parts of its range, especially at the periphery. A state rarity rank of S2S3 means: Imperiled or Vulnerable in New York Very vulnerable to disappearing from New York, or vulnerable to becoming imperiled in New York, due to rarity or other factors; typically 6 to 80 populations or locations in New York, few individuals, restricted range, few remaining acres (or miles of stream), and/or recent and widespread declines. More information is needed to assign a single conservation status.
407 citations
TL;DR: The Amphipoda includes a large clade defined by the presence of a previously unrecognised synapomorphy, apical robust setae on the rami of uropods 1-2, which is introduced for the first time in am-phipod classification, the level parvorder between infraorder and superfamily.
Abstract: The Amphipoda includes a large clade defined by the presence of a previously unrecognised synapomorphy, apical robust setae on the rami of uropods 1–2. We term this clade the Senticaudata subord. nov. (Latin: sentis = thorn). It includes almost all freshwater species as well as a number of marine benthic taxa, formerly part of the ‘Gammaridea’. The phylog-eny of the senticaudates was determined by cladistic analysis of morphological characters and character states. Within the suborder Senticaudata there are six infraorders: Carangoliopsida, Talitrida, Hadziida, Corophiida, Bogidiellida and Gam-marida. A classification is provided and all the senticaudate families are diagnosed. We introduce for the first time in am-phipod classification, the level parvorder between infraorder and superfamily. Four new families are described: Kairosidae; Eriopisidae; Nuuanuidae and Kergueleniolidae.
174 citations
TL;DR: Sex and Parthenogenesis — Evolutionary Ecology of Reproductive Modes in Non-Marine Ostracods explores the role of sex and parthenogenesis in the evolution of sexuality and the ecology of reproduction in non-marine ostracod animals.
Abstract: Sex and Parthenogenesis — Evolutionary Ecology of Reproductive Modes in Non-Marine Ostracods
72 citations