Download or read book Lycosidae Arachnida Araneae written by Cornelis Jacob Vink and published by . This book was released on 2002-01 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Text on the family Lycosidae (wolf spiders), of which there are more than 2200 known species that are found world wide. Twenty-seven species are found in New Zealand. The text contains descriptions of all genera and species. Text is well supplemented with photographs, illustrations and distribution maps.

Download or read book Spiders Arachnida Araneae of Milbridge Washington County Maine written by Daniel T. Jennings and published by . This book was released on 2007 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adult spiders (N = 6,979) of 19 families, 145 genera, and 302 species (including 4 unknown) were collected from diverse inland, coastal, and offshore habitats of Milbridge, a 6,290-ha minor civil division of the East Coastal BioPhysical Region. Spider species richness per family ranged from 1 (Titanoecidae and Pisauridae) to 89 (Linyphiidae); species richness per genus ranged from 1 to 13, with 88 genera represented by a single species. As expected, the collected taxa were distributed unequally between two basic foraging strategies: 10 families, 98 genera, and 179 species of web spinners; 9 families, 47 genera, and 123 species of hunters. Spider abundances varied widely among taxa; individuals per family ranged from 1 (Titanoecidae and Pisauridae) to 1,691(Lycosidae); individuals per species ranged from 1 (86 species) to 470. Pardosa moesta was the most frequently collected spider. Although total species composition favored web spinners over hunters, more hunters were collected than web spinners, and more female spiders were collected than male spiders, a pattern evident for both web spinners and hunters. Spider sex ratios varied widely among the collected species and were influenced by sampling method, habitat, and season. Pitfall traps yielded more species and more individuals than any other sampling method. Fully 47.0 percent of the inventoried fauna were method-unique species; most were taken by pitfall traps, searches, and sweep nets. Species-faunal compositions among habitats were generally distinct among habitats (QS [less than or equal to] 50.0), and included habitat-unique species.

Download or read book Studies on Some Spiders of the Family Lycosidae Araneae Arachnida from Madhya Pradesh India written by U. A. Gajbe and published by . This book was released on 2004 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Revision of North American Spiders of the Family Lycosidae written by Ralph Vary Chamberlin and published by . This book was released on 1908 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The spider family Micropholcommatidae Arachnida Araneae Araneoidea a relimitation and revision at the generic level written by Mihael G. Rix and published by PenSoft Publishers LTD. This book was released on 2010-02-22 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Micropholcommatidae are a family of tiny, distinctive araneoid spiders, known from southern-temperate habitats throughout Australasia and Chile. The greatest abundance of individuals and the largest diversity of taxa occur in the cool-temperate rainforests of south-eastern Australia and New Zealand, where micropholcommatid spiders can be very common within moss and leaf litter microhabitats. Although poorly studied biologically and largely neglected taxonomically, the Micropholcommatidae are a diverse lineage, with a significantÿ The monograph in this volume presents a complete generic-level revision of the spider family Micropholcommatidae. The phylogenetic position and internal phylogeny of the family are tested with two separate morphological cladistic analyses, the results of which inform a comprehensive generic-level classification. In total, 26 new species, 12 new genera, one new tribe and two new subfamilies are described, taking the total documented micropholcommatid fauna to 58 species. The distribution and Gondwanan biogeography of the family are also discussed, and natural history information is provided where known. Most importantly, the results of this paper present a taxonomic framework and a phylogenetic foundation for all future research on the Micropholcommatidae; a template by which new species can be described and existing species can be identified, and a valuable dataset for exploring phylogenetic hypotheses.

Download or read book The spider family Selenopidae Arachnida Araneae in Australasia and the Oriental Region written by Sarah C. Crews and published by PenSoft Publishers LTD. This book was released on 2011-05-19 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: ÿThe Selenopidae are a family of medium to large spiders with extremely flattened bodies. They are exceptional in that both their running and striking speeds place them amongst the world?s fastest animals. They occur in all habitable continents but are most abundant in tropical and adjacent realms. Selenopid spiders are usually found under rocks or under tree bark, and have the ability to squeeze into tight crevices. The family currently comprises around 200 species in five genera. In this monograph, four new genera and 27 new species are described from Australia and the Oriental Region, bringing the world total to nine genera and over 230 species. Several species previously placed in Selenops are transferred to the new genera. The Australian fauna is found to be more diverse than previously documented with a total of 24 species, 23 of which are new. A key to the genera of Selenopidae is provided, as are keys to the species of the new genera Karaops and Makdiops.

Download or read book Why Do Wolf Spiders Make Burrows written by Meghan Sharif and published by Gareth Stevens Publishing LLLP. This book was released on 2018-07-15 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: It isn't unusual to see a spider hanging out in the middle of its complex silk web, just waiting for a tasty bug to come by. Less well-known is a spider that digs a burrow in the ground. Several species are known for doing this, and the reason why isn't as odd as it seems. Arachnid aficionados will love finding out about the weird adaptations that these creatures have developed. Intriguing text and in-depth sidebars are supported by remarkable photographs of all kinds of arachnids in their wild habitats.

Download or read book The Biology of Spiders written by Theodore Horace Savory and published by . This book was released on 1928 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Spider Taxonomy 1981 1987 written by Norman I. Platnick and published by Manchester University Press. This book was released on 1989 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SPIDER written by Cecil Warburton and published by BoD - Books on Demand. This book was released on 2024-02-11 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: THERE are certain days of the year when the immense wealth of spider industry going on all around us is revealed in a way calculated to strike even the least observant. We all know—and derive no peculiarly pleasant thrill from the knowledge—that we can, if so minded, find abundance of cobwebs and their occupants by visiting the cellar or the tool-house; and probably we have all at times noticed, with a languid interest, large circular webs on our favourite rose-bushes, with a spider motionless in the centre. But some spring or autumn morning, when the night has been foggy and the sun has only just succeeded in dispersing the mists, every bush and hedge is seen to be draped, every square foot of lawn and meadow to be carpeted with spiders’ silk. There has been no special activity in the domain of these creatures, but every silken line is beaded with drops perhaps fifty times its diameter, and what yesterday required careful observation to detect is now visible yards away, and we realise for once something of the prodigious activity constantly going on though ordinarily unnoted. And it never entirely ceases. True hibernation, if it ever occurs, is not the rule among spiders, and there is no time of the year when some species may not be found at work. Beat trees or bushes over an old umbrella, or sweep grass and herbage with a sweeping net in summer, and you will never draw a blank—some spiders are sure to be found. In winter such measures are profitless, but if you take the trouble to grub among ground vegetation, or shake fallen leaves over a newspaper, or search under stones or logs of wood you will have no difficulty in finding spiders enough, and by no means dormant. I have even seen an enthusiastic collector remove inches of snow and disinter rare species from among the roots of the grass beneath!

Download or read book Spiders Arachnida Araneae of Milbridge Washington County Maine written by Daniel T. Jennings and published by . This book was released on 2007 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigations Into the Phylogeny of the Lycosoid Spiders and Their Kin Arachnida Araneae Lycosoidea written by Charles E. Griswold and published by . This book was released on 1993 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The velvet spiders an atlas of the Eresidae Arachnida Araneae written by Jeremy A. Miller and published by PenSoft Publishers LTD. This book was released on 2012-05-18 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The name velvet spider describes the dark and shiny appearance of members of the family Eresidae. Some species also have brightly-colored highlights, such as the red, white, and black ladybird spiders of Europe and North Asia. This family also includes some of the world?s most cooperative spider species. Social species can be very abundant in parts of tropical Africa and Asia with conspicuous colonies dotting the landscape. Social colonies may consist of hundreds of closely-related individuals that participate in dramatic mass attacks on prey and care for their young. The ecology of these social species is fascinating and has been the subject of several landmark scientific papers. By contrast, most kinds of velvet spider are rarely encountered. Most species keep well hidden or dig burrows and live underground. This monograph provides a generic-level review of Eresidae documented with collections of photographs, scanning electron micrographs, and illustrations. A key to the nine genera and other major lineages is provided. A new phylogeny of Eresidae based on molecular sequence data expands on a previously published analysis. Cybertaxonomic enhancements include an interactive map of the specimens used in the study explorable using Google Earth, specimen records uploaded to GBIF, and molecular sequence alignments and other data archived on Dryad. An EDIT Integrated Research grant provided principal funding for this project.

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 Spiders written by Cecil Warburton and published by . This book was released on 1912 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pisauridae Arachnida Araneae written by Cor J. Vink and published by . This book was released on 2010 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four closely related species of Pisauridae (nurseryweb spiders) are found in New Zealand; three on the mainland and one on the Chatham Islands. All species are endemic to New Zealand and are likely to be related to Australian species. The most common species is Dolomedes minor, found throughout New Zealand in scrubland, grassland, swamps and marshes. Dolomedes aquaticus is found in open riverbeds and stony lakeshores throughout the South Island and in the southern half of the North Island. A new species of Dolomedes is found in shaded riverbeds throughout the mainland. The Chatham Island species, Dolomedes schauinslandi, is nationally endangered due to its restricted range. In this Fauna the genus Dolomedes and all New Zealand species are described, with information on synonymy, type data, material examined, and geographical distribution. Habitus images of adults, illustrations of important structural features, and distribution maps are provided. A key to adults is given. A molecular phylogenetic analysis examining the relationships of New Zealand species in the genus is presented."--Publisher's description.

Download or read book Catalogue of the Ground beetles of Bulgaria Coleoptera Carabidae written by Vasil Borisov Georgiev and published by Pensoft Publishers. This book was released on 1995 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: