Download or read book Phylogeography and Population Genetics of the Moor Frog Rana Arvalis Nilsson in Northern Europe written by Theresa Knopp and published by . This book was released on 2008 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tolerance to Low PH in a Population of Moor Frogs Rana Arvalis from an Acid and a Neutral Environment written by Claes Andrén and published by . This book was released on 1989 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atlas of Amphibians and Reptiles in Europe written by Jean-Pierre Gasc and published by Muséum National d'Histoire Naturelle. This book was released on 2004 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Présente la répartition géographique, la taxinomie, l'état de la population et les problèmes de conservation des espèces d'amphibiens et de reptiles en Europe.
Download or read book A Comparative Study on the Morphological Characters of Adult Specimens of the Grass Frog Rana Temporaria Temporaria Linnaeus 1758 and Moor Frog Rana Arvalis Arvalis Nilsson 1842 written by Lucjan Tomasik and published by . This book was released on 1971 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparative Study on the Morphological Characters of Adult Specimens of the Grass Frog and Moor Frog Rana Arvalis Nilsson 1842 written by Lucjan Tomasik and published by . This book was released on 1971 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling the Impact of Roads on Regional Population of Moor Frogs Rana Arvalis written by and published by . This book was released on 2013 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coexistence of the Moor Frog Rana Arvalis and Common Frog Rana Temporaria in a Degraded Landscape written by Leo Norda and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 2000 with total page 1762 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Adaptive Divergence of the Moor Frog Rana Arvalis Along an Acidification Gradient written by Sandra Bettina Hangartner and published by . This book was released on 2010 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Colonizing Northern Landscapes written by Andrée-Michelle D'Aoust-Messier and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The genetic structuring of populations can be influenced by present processes and past events. One of the largest historical events to affect the distribution and genetic characteristics of present-day North American biota is the Pleistocene glaciation. Thus, the study of post-glacial colonization patterns of species in northern landscapes can relay important ecological information, as species had to expand their range extensively following the retreat of the glaciers and are often at the terminal end of their expansion. These species consequently exhibit the genetic fingerprints of sequential founder events, in turn decreasing the genetic variation available for adaptation. Using amphibians to investigate post-glacial range expansion is advantageous, as they have limited dispersal abilities revealing fine-scale patterns and they are thought to be one of the first vertebrates to colonize post-glacial habitat. Therefore, to model the phylogeography of a primary colonizer and the population structure of anurans in northern landscapes, population genetics analyses of wood frogs (Lithobates sylvaticus) were performed in the James Bay area. Wood frogs were sampled from 17 localities around James Bay and genetic analyses were conducted with seven microsatellite loci and mitochondrial DNA sequences of the ND2/tRNATRP genes. Results show that the post-glacial recolonization of the James Bay area by wood frogs originated from the putative refugium in western Wisconsin, an area known as the Driftless Area. Two routes were taken by founders to colonize the James Bay area: one north-west of Lake Superior, colonizing western Ontario, and one through the Upper Peninsula of Michigan, colonizing southern and eastern Ontario and western Québec. Interestingly, the meeting of the two lineages south-west of James Bay led to the establishment of a zone of higher genetic variation than expected under the founder effect hypothesis. Additionally, population structure analyses revealed the segregation of three genetic populations east, north-west, and south-west of the bay, the latter showing the highest genetic variation and likely representing a zone of secondary contact. This study shows that past events such as post-glacial range expansions can explain present patterns of genetic variation and population structure, and that studies in northern landscapes may be very useful in understanding genetic patterns throughout the range of a species.
Download or read book Relict Species written by Jan Christian Habel and published by Springer Science & Business Media. This book was released on 2009-12-03 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mankind has evolved both genetically and culturally to become a most successful and dominant species. But we are now so numerous and our technology is so p- erful that we are having major effects on the planet, its environment, and the b- sphere. For some years prophets have warned of the possible detrimental consequences of our activities, such as pollution, deforestation, and overfishing, and recently it has become clear that we are even changing the atmosphere (e. g. ozone, carbon dioxide). This is worrying since the planet’s life systems are involved and dependent on its functioning. Current climate change – global w arming – is one recognised consequence of this larger problem. To face this major challenge, we will need the research and advice of many disciplines – Physics, Chemistry, Earth Sciences, Biology, and Sociology – and particularly the commitment of wise politicians such as US Senator Al Gore. An important aspect of this global problem that has been researched for several decades is the loss of species and the impoverishment of our ecosystems, and hence their ability to sustain themselves, and more particularly us! Through evolutionary time new species have been generated and some have gone extinct. Such extinction and regeneration are moulded by changes in the earth’s crust, atmosphere, and resultant climate. Some extinctions have been massive, particularly those asso- ated with catastrophic meteoric impacts like the end of the Cretaceous Period 65Mya.
Download or read book The Evolution of Social Behaviour written by Michael Taborsky and published by Cambridge University Press. This book was released on 2021-08-26 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: How can the stunning diversity of social systems and behaviours seen in nature be explained? Drawing on social evolution theory, experimental evidence and studies conducted in the field, this book outlines the fundamental principles of social evolution underlying this phenomenal richness.To succeed in the competition for resources, organisms may either 'race' to be quicker than others, 'fight' for privileged access, or 'share' their efforts and gains. The authors show how the ecology and intrinsic attributes of organisms select for each of these strategies, and how a handful of straightforward concepts explain the evolution of successful decision rules in behavioural interactions, whether among members of the same or different species. With a broad focus ranging from microorganisms to humans, this is the first book to provide students and researchers with a comprehensive account of the evolution of sociality by natural selection.
Download or read book Carabid Beetles Ecology and Evolution written by K. Desender and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Carabidae form one of the largest and best studied families of insects, occurring in nearly every terrestrial habitat. The contributions included in this book cover a broad spectrum of recent research into this beetle family, with an emphasis on various aspects of ecology and evolution. They deal both with individual carabid species, for example in studies on population and reproductive biology or life history in general, and with ground beetle communities, as exemplified in papers treating assemblages in natural habitats, on agricultural land and in forests. Disciplines range from biogeography and faunistics, over morphology, taxonomy and phylogenetics, ecophysiology and functional ecology, to population, community, conservation and landscape ecology. This volume is the result of the 8th European Carabidologists' Meeting, 2nd International Symposium of Carabidology, September 1-4, 1992, Belgium.
Download or read book Diversity of Insect Faunas written by Laurence Alfred Mound and published by Blackwell Scientific Publications Limited. This book was released on 1978 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: A variety of diversities. The components of diversity. Influence of spatial and host-plant isolation on polymorphism in Philaenus spumarius. Ecological and behavioural origins of diversity in butterflies. Diversity of the sternorrhyncha within major climatic zones. Determinants of local diversity in phytophagous insects: host specialists in tropical environments. Host-plant influences on insect diversity: the effects of space and time. Urbanisation and the diversity of insects. Colonisation of islands by insects: immigration, extinction, and diversity. Evolution and diversity under bark. Constancy of insect species versus incostancy of quaternary environments. The dinamics and diversity of insect faunas.
Download or read book The Aquatic Adephaga Coleoptera of the Fennoscandia and Denmark Ii Dytiscidae written by Anders N. Nilsson and published by BRILL. This book was released on 1995 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains richly illustrated keys and descriptions of the 157 species of predaceous diving beetles (Dytiscidae) found in Fennoscandia, Denmark and the Baltic States. Information about biology and distribution is included, as is a catalogue of provincial records.
Download or read book Molecular Markers in Plants written by Robert J. Henry and published by John Wiley & Sons. This book was released on 2012-09-27 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular Markers in Plants surveys an array of technologies used in the molecular analysis of plants. The role molecular markers play in plant improvement has grown significantly as DNA sequencing and high-throughput technologies have matured. This timely review of technologies and techniques will provide readers with a useful resource on the latest molecular technologies. Molecular Markers in Plants not only reviews past achievements, but also catalogs recent advances and looks forward towards the future application of molecular technologies in plant improvement. Opening chapters look at the development of molecular technologies. Subsequent chapters look at a wide range of applications for the use of these advances in fields as diverse as plant breeding, production, biosecurity, and conservation. The final chapters look forward toward future developments in the field. Looking broadly at the field of molecular technologies, Molecular Markers in Plants will be an essential addition to the library of every researcher, institution, and company working in the field of plant improvement.
Download or read book The Natterjack Toad written by Trevor John Clark Beebee and published by Oxford University Press, USA. This book was released on 1983 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
