289,245 research outputs found

    Bulletin No. 18: Seaweeds of the Connecticut Shore: A Wader\u27s Guide

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    Illustrated guide to 60 different algae with keys to their identification. 36 pp. 1972

    Keys to families of Cladocera and to subfamilies, genera, species and subspecies of Macrothricidae and Moinidae [Translation from: Leningrad, Fauna SSSR, Crustacea 1 (3), 1971]

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    Identification keys to families of Cladocera and to subfamilies, genera, species and subspecies of Macrothricidae and Moinidae are given. This translation does not include ecological notes or illustrations

    An Annotated List of the Cerambycidae of Michigan (Coleoptera) Part II, the Subfamilies Lepturinae and Lamiinae

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    (excerpt) This is a continuation of Part I of an annotated list of the Cerambycidae known from Michigan, and includes the remaining subfamilies Lepturinae and Lamiinae. The format is similar to that used in Part I. We have largely followed the systematic order of Chemsak and Linsley (1975) in this part of the list. Keys for the identification of adult Lepturinae can be found in Linsley and Chemsak (1972; in press). References to keys for adult Lamiinae are listed under that subfamily. Many larvae may be identified through the keys in Craighead (1923), but not all Michigan species are covere

    Online identification of Mysida through NeMys

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    Identification of specimens is a task that every biologist is confronted with. The process of identification in many cases delivers many problems due to unavailability of keys, difficult specialised keys or old keys.Within NeMys (http://intramar.ugent.be/nemys) recently a new identification module has been added. Based upon morphological data derived from published literature, polytomous digital identification keys are made. This kind of keys has the advantage that users are not forced to follow a predefined pathway (as in dichotomous keys), users can choose their best suitable characteristics to work with and the keys can be easily updated with new insights through a fully online key-generation system.By using internet technologies, the identification keys are at any time anywhere available for use. As the data used in the keys is derived from the database system NeMys, it is also possible to check the identification process at any level, with literature sources, images, distribution patterns, … on the website of NeMys.This kind of technology opens new possibilities for biologists to share their taxonomic knowledge with a broader audience without being forced to go through the difficult process of creating dichotomous paper-based keys

    Dung beetles (Coleoptera: Scarabaeidae: Aphodiinae) of the Mpala Research Centre and environs, Laikipia District, Kenya

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    The dung beetle fauna of the subfamily Aphodiinae occurring in the Laikipia District of Kenya was surveyed. In total, 14 genera and 29 species were found and these taxa are placed in identification keys. Known generic distributions are provided and species collection data listed

    Types of identification keys

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    A number of terms related to identification tools are introduced and the advantages of selected types of identification keys are compared

    Jörg Wunderlich (ed.) (2012): Fifteen papers on extant and fossil spiders (Araneae)

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    This book consists of fifteen papers (considered below as Chapters) on fossil and extant arachnids, mostly spiders. Most papers are written by the editor, two papers in cooperation with Peter Jäger and with Søren Toft, and a single one by Peter Jäger. Chapters 1 and 2 are identification keys to the European genera of the families Zodariidae and Corinnidae, respectively

    Morphological Differentiation Between \u3ci\u3eAphis Spiraecola\u3c/i\u3e and \u3ci\u3eAphis Pomi\u3c/i\u3e (Homoptera: Aphididae)

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    Aphis pomi and Aphis spiraecola, are both found on agriculturally important hosts such as apple and pear, and in trap collections. Their morphological similarity makes identification difficult. Examination of specimens of both species fom a wide geographical range demonstrated that available keys, especially those based on European material, were not always accurate for North American specimens. Data taken from North American specimens is presented and a key is provided to aid in the identification of trapped alatae preserved in alcohol as well as slide mounted alatae and apterae of these two species

    A Synopsis of the Coreoidea (Heteroptera) of Michigan

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    An overview of the species of Coreoidea (Alydidae, Coreidae, and Rhopalidae) found in Michigan is presented, along with identification keys, distribution maps, and relevant literature. New state records for Alydus pilosulus Herrich-Schaeffer (Alydidae: Alydinae), Merocoris distinctus Dallas (Coreidae: Meropachyinae), Leptoglossus corculus (Say) (Coreidae: Coreinae), Leptoglossus oppositus (Say) (Coreidae: Coreinae), and Liorhyssus hyalinus (Fabricius) (Rhopalidae: Rhopalinae) are included
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