Download or read book Genetic Analysis of Pardosa Wolf Spiders Aranae written by Kathrin Sim and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "An analysis of the genetic structure of northern Nearctic wolf spiders from the genus Pardosa (Lycosidae) was conducted. Wolf spiders are common and abundant across the Nearctic, but despite their ecological importance, little is known about their phylogeography and taxonomically uncertain species exist. Wolf spiders were collected from sites across northern Canada to examine the phylogeographic history of Pardosa glacialis (Thorell) and taxonomic status of the Nearctic members of the Pardosa lapponica species-group. Results show that the high Arctic species P. glacialis occupied two major glacial refugia during the Wisconsin glaciation: Beringia and a lesser-known high Arctic refugium. Additionally, analyses support a P. glacialis population expansion in Beringia during the Wisconsin glaciation, likely facilitated by an increase in habitat due to suitable climate in the region. Post-glacial dispersal from the Beringian and high Arctic refugia produced a secondary contact zone in central high Arctic Canada. With regards to taxonomy, morphometric analyses of P. lapponica (Thorell) and P. concinna (Thorell), the only two members of the P. lapponica species-group in the Nearctic, revealed no species-specific variation beyond a single male morphological character. Genetic analyses showed there was more genetic variation between Palearctic and Nearctic P. lapponica specimens than between Nearctic P. lapponica and P. concinna specimens. The P. lapponica species-group is in need of taxonomic revision to resolve the species boundaries among its members." --
Download or read book Feeding Ecology and Predatory Importance of Wolf Spiders Pardosa Spp Araneae Lycosidae in Winter Wheat Fields written by Martin Nyffeler and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life Histories of Two Wolf Spiders Pardosa Tristis and P Steva Araneae written by Evelyn Ruth Lee and published by . This book was released on 1977 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wolf Spiders of the Pardosa Monticola Group Araneae Lycosidae written by Paolo Tongiorgi and published by . This book was released on 1966 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Italian Wolf Spiders of the Genus Pardosa Araneae Lycosidae written by Paolo Tongiorgi and published by . This book was released on 1966 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lapidicina Group of the Wolf Spider Genus Pardosa Araneae Lycosidae written by Robert D. Barnes and published by . This book was released on 1959 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spider Physiology and written by Jerome Casas and published by Academic Press. This book was released on 2011-12-13 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of contents vol. 41: The Sensory and Behavioural Biology of Whip Spiders (Arachnida, Amblypygi) Dynamic Population Structure and the Evolution of Spider Mating Systems Spider Cognition The Form and Function of Spider Orb Webs: Evolution from Silk to Ecosystems
Download or read book Lapidicina Group of Wolf Spider Genus Pardosa Araneae Lycosidae American Museum Novitates written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spider Research in the 21st Century written by David Penney and published by . This book was released on 2013 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The result is a great increase in multi-disciplinary research and novel avenues incorporating spiders as model organisms.
Download or read book Spider Ecophysiology written by Wolfgang Nentwig and published by Springer Science & Business Media. This book was released on 2013-02-15 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: With over 43,000 species, spiders are the largest predacious arthropod group. They have developed key characteristics such as multi-purpose silk types, venoms consisting of hundreds of components, locomotion driven by muscles and hydraulic pressure, a highly evolved key-lock mechanism between the complex genital structures, and many more unique features. After 300 million years of evolutionary refinement, spiders are present in all land habitats and represent one of the most successful groups of terrestrial organisms. Ecophysiology combines functional and evolutionary aspects of morphology, physiology, biochemistry and molecular biology with ecology. Cutting-edge science in spiders focuses on the circulatory and respiratory system, locomotion and dispersal abilities, the immune system, endosymbionts and pathogens, chemical communication, gland secretions, venom components, silk structure, structure and perception of colours as well as nutritional requirements. Spiders are valuable indicator species in agroecosystems and for conservation biology. Modern transfer and application technologies research spiders and their products with respect to their value for biomimetics, material sciences, and the agrochemical and pharmaceutical industries.
Download or read book A life caught in a spider s web written by Pavel Stoev and published by PenSoft Publishers LTD. This book was released on 2009-07-29 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue is dedicated to Dr. Christo Deltshev, the doyen of Bulgarian araneology. It contains seventeen arachnological publications, including a concise biography of Dr. Deltshev, a list of his scientific publications and his described taxa. The volume comprises taxonomic contributions in the spider families Hypochilidae, Sicariidae, Dysderidae, Hersiliidae, Theridiidae, Linyphiidae, Lycosidae, Dictynidae, Gnaphosidae, Sparassidae, Philodromidae and Salticidae and fossil taxa in the harvestmen suborders Dyspnoi and Eupnoi, written by a total of 36 authors. Four new genera and 37 new spider and harvestmen species have been described in this volume, and dozens of new taxonomic alterations (new combinations, new synonyms, new statuses, etc.) are proposed too. Geographically, the papers deal with material originating from Europe, Africa, Asia, North and South America. There is also an overview of the use of barcoding to identify spiders in species-rich genera.
Download or read book An Investigation of the Ecology of the Wolf Spider Pardosa Groenlandica Th Araneae Lycosidae written by David Raynor Ricards and published by . This book was released on 1967 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Genomics written by C. Cristofre Martin and published by Springer Science & Business Media. This book was released on 2008-01-18 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is a manual for an environmental scientist who wishes to embrace genomics to answer environmental questions. The volume covers: gene expression profiling, whole genome and chromosome mutation detection, and methods to assay genome diversity and polymorphisms within a particular environment. This book provides a systematic framework for determining environmental impact and ensuring human health and the sustainability of natural populations.
Download or read book Habitat Structure written by S.S. Bell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: We conceived the idea for this book after teaching a graduate seminar on 'Habitat Complexity' at The University of South Florida. Discussions during the seminar led us to conclude that similar goals were to be found in studies of the topic that spanned the breadth of ecological research. Yet, the exact meaning of 'habitat structure', and the way in which it was measured, seemed to differ widely among subdisciplines. Our own research, which involves several sorts of ecology, convinced us that the differences among subdisciplines were indeed real ones, and that they did inhibit communica tion. We decided that interchange of ideas among researchers working in marine ecology, plant-animal interactions, physiological ecology, and other more-or-less independent fields would be worthwhile, in that it might lead to useful generalizations about 'habitat structure'. To foster this interchange of ideas. we organized a symposium to attract researchers working with a wide variety of organisms living in many habitats, but united in their interest in the topic of 'habitat structure'. The symposium was held at The University of South Florida's Chinsegut Hill Conference Center, in May. 1988. We asked participants to think about 'habitat structure' in new ways; to synthesize important, but fragmented, information; and. perhaps. to consider ways of translating ideas across systems. The chapters contained in this book reflect the participants' attempts to do so. The book is divided into four parts, by major themes that we have found useful categorizations.
Download or read book Issues in Radiation Biology and Toxicology Research 2012 Edition written by and published by ScholarlyEditions. This book was released on 2013-01-10 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Radiation Biology and Toxicology Research: 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Toxicology. The editors have built Issues in Radiation Biology and Toxicology Research: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Toxicology in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Radiation Biology and Toxicology Research: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Download or read book Behaviour and Ecology of Spiders written by Carmen Viera and published by Springer. This book was released on 2017-11-02 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the last few decades, arachnology in the Neotropical region has experienced a great development filling the knowledge gap in one of the most diverse regions of the world. Nevertheless, large geographical areas remain poorly sampled, especially within the Amazon, and new genera and species have been continuously discovered, even in urban areas. In congruence with the recent improvements in research, several aspects of the ecology, behaviour and natural history of spiders, such as interactions with other predators and parasitoids, social interactions, dispersal patterns, habitat requirements, mating behaviors, among others, are being carefully investigated. These recent contributions incorporate substantial information on the preexisting knowledge on these subjects every year. Our main objective with this book is to present a summary on these new researches and on the currently knowledge on the main subjects involved in the general theme, emphasizing the contribution of the rich fauna of the Neotropical region to the research of behaviour and ecology of the spiders.
Download or read book Sexual Selection and Animal Genitalia written by William G. Eberhard and published by . This book was released on 2013-10-01 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
