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Category : Arthropoda
Languages : en
Pages : 460
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Book Description
Author:
Publisher:
ISBN:
Category : Arthropoda
Languages : en
Pages : 460
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Natdanai Likhitrakarn
Publisher: PenSoft Publishers LTD
ISBN: 9546426105
Category : Science
Languages : en
Pages : 171
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Book Description
ÿThe large genus Orthomorpha is rediagnosed and is shown to currently com-prise 51 identifiable species ranging from northern Myanmar and Thailand in the Northwest to Lombok Island, Indonesia in the Southeast. Of them, 20 species have been revised and/or abundantly illustrated, based on a res-tudy of mostly type material; further 12 species are described as new: O. atypica sp. n., O. communis sp. n., O. isarankurai sp. n., O. picturata sp. n., O. similanensis sp. n., O. suberecta sp. n., O. tuberculifera sp. n., O. subtuberculifera sp. n. and O. latiterga sp. n., all from Thailand, as well as O. elevata sp. n., O. spiniformis sp. n. and O. subelevata sp. n., from northern Malaysia. The type-species O. beaumontii (Le Guillou, 1841) is redescribed in due detail from male material as well, actually being a senior subjective synonym of O. spinala (Attems, 1932), syn. n. Two additional new synonymies are proposed: O. rotundicollis (Attems, 1937) = O. tuberculata (Attems, 1937), syn. n., and O. butteli Carl, 1922 = O. consocius Chamberlin, 1945, syn. n., the valid names to the left. All species have been keyed and all new and some especially widespread species have been mapped. Further six species, including two revised from type material, are still to be considered dubious, mostly because their paraterga appear to be too narrow to represent Orthomorpha species. A new genus, Orthomorphoides gen. n., diagnosed versus Orthomorpha through only moderately well developed paraterga, coupled with a poorly bi- or trifid gonopod tip, with at least some of its apical prongs being short spines, is erected for two species: O. setosus (Attems, 1937), the type-species, which is also revised from type material, and O. exaratus (Attems, 1953), both comb. n. ex Orthomorpha.
Author:
Publisher: Magnolia Press
ISBN: 1869778499
Category : Animals
Languages : en
Pages : 239
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Author: Oana Teodora Moldovan
Publisher: Springer
ISBN: 3319988522
Category : Science
Languages : en
Pages : 545
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Book Description
Cave organisms are the ‘monsters’ of the underground world and studying them invariably raises interesting questions about the ways evolution has equipped them to survive in permanent darkness and low-energy environments. Undertaking ecological studies in caves and other subterranean habitats is not only challenging because they are difficult to access, but also because the domain is so different from what we know from the surface, with no plants at the base of food chains and with a nearly constant microclimate year-round. The research presented here answers key questions such as how a constant environment can produce the enormous biodiversity seen below ground, what adaptations and peculiarities allow subterranean organisms to thrive, and how they are affected by the constraints of their environment. This book is divided into six main parts, which address: the habitats of cave animals; their complex diversity; the environmental factors that support that diversity; individual case studies of cave ecosystems; and of the conservation challenges they face; all of which culminate in proposals for future research directions. Given its breadth of coverage, it offers an essential reference guide for graduate students and established researchers alike.
Author: Alessandro Minelli
Publisher: Springer Science & Business Media
ISBN: 3642361609
Category : Science
Languages : en
Pages : 530
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Book Description
More than two thirds of all living organisms described to date belong to the phylum Arthropoda. But their diversity, as measured in terms of species number, is also accompanied by an amazing disparity in terms of body form, developmental processes, and adaptations to every inhabitable place on Earth, from the deepest marine abysses to the earth surface and the air. The Arthropoda also include one of the most fashionable and extensively studied of all model organisms, the fruit-fly, whose name is not only linked forever to Mendelian and population genetics, but has more recently come back to centre stage as one of the most important and more extensively investigated models in developmental genetics. This approach has completely changed our appreciation of some of the most characteristic traits of arthropods as are the origin and evolution of segments, their regional and individual specialization, and the origin and evolution of the appendages. At approximately the same time as developmental genetics was eventually turning into the major agent in the birth of evolutionary developmental biology (evo-devo), molecular phylogenetics was challenging the traditional views on arthropod phylogeny, including the relationships among the four major groups: insects, crustaceans, myriapods, and chelicerates. In the meantime, palaeontology was revealing an amazing number of extinct forms that on the one side have contributed to a radical revisitation of arthropod phylogeny, but on the other have provided evidence of a previously unexpected disparity of arthropod and arthropod-like forms that often challenge a clear-cut delimitation of the phylum.
Author: Petar Beron
Publisher: Springer
ISBN: 3319744186
Category : Science
Languages : en
Pages : 995
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Book Description
This volume merges all geographical and paleogeographical data on all groups of the arachnofauna. The book features topics such as the ecological factors, climate and other barriers that influence the distribution of arachnida. It also elaborates on the characteristics of the distribution such as arachnida at high altitude (e.g. Himalaya), in caves, in polar regions and highlights differences between the arachnofauna of e.g. Mediterranean regions vs Central Europe, West African vs Indomalayan and more. Furthermore, amongst other topics the volume also includes chapters on the systems of arachnida, fossil orders, dispersal and dispersion, endemics and relicts, regional arachnogeography, cave and high altitude arachnida.
Author: Marcel Florkin
Publisher: Elsevier
ISBN: 0323163084
Category : Science
Languages : en
Pages : 505
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Book Description
Chemical Zoology, Volume VI, Arthropoda Part B, provides zoologists and chemists with an overview of the state of knowledge in chemistry and zoology and an introduction to the existing literature. The treatise is arranged by phyla, an arrangement which seemed most suitable for presenting chemical information of zoological significance and for bringing to the attention of chemists those aspects of biochemical diversity of greatest potential interest. Each section, dealing with a major phylum, is introduced by a discussion of the biology and systematics of the group. This is followed by chapters dealing with various aspects of the biochemistry of the group. This volume contains 11 chapters that discuss the integument, hemolymph, blood respiratory pigments, hemolymph coagulation excretion, pigments, chemistry, toxicology, and pharmacology of Arthropoda. The respiration, energy metabolism, and chemical ecology of Crustacea as well as the oxidative metabolism of Insecta are also covered.
Author: Klaus Anger
Publisher: Oxford University Press, USA
ISBN: 0190648953
Category : Science
Languages : en
Pages : 489
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Book Description
This is the seventh volume of a ten-volume series on The Natural History of the Crustacea. Chapters in this volume synthesize our current understanding of early crustacean development from the egg through the embryonic and larval phase. The first part of this book focuses on the elemental aspects of crustacean embryonic development. The second part of the book provides an account of the larval phase of crustaceans and describes processes that influence the development from hatching to an adult-like juvenile. The third and final part of the book explores ecological interactions during the planktonic phase and how crustacean larvae manage to find food, navigate the dynamic water column, and avoid predators in a medium that offers few refuges.
Author: Klaus Anger
Publisher: Oxford University Press
ISBN: 0190094982
Category : Science
Languages : en
Pages : 489
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Book Description
This is the seventh volume of a ten-volume series on The Natural History of the Crustacea. Chapters in this volume synthesize our current understanding of early crustacean development from the egg through the embryonic and larval phase. The first part of this book focuses on the elemental aspects of crustacean embryonic development. The second part of the book provides an account of the larval phase of crustaceans and describes processes that influence the development from hatching to an adult-like juvenile. The third and final part of the book explores ecological interactions during the planktonic phase and how crustacean larvae manage to find food, navigate the dynamic water column, and avoid predators in a medium that offers few refuges.
