Functional and Evolutionary Ecology of Fleas

Author: Boris R. Krasnov
Publisher: Cambridge University Press
ISBN: 1139472666
Format: PDF, Mobi
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Fleas are one of the most interesting and fascinating taxa of ectoparasites. All species in this relatively small order are obligatory haematophagous (blood-feeding) parasites of higher vertebrates. This book examines how functional, ecological and evolutionary patterns and processes of host-parasite relationships are realized in this particular system. As such it provides an in-depth case study of a host-parasite system, demonstrating how fleas can be used as a model taxon for testing ecological and evolutionary hypotheses. The book moves from basic descriptive aspects, to functional issues and finally to evolutionary explanations. It extracts several general principles that apply equally well to other host-parasite systems, so it appeals not only to flea biologists but also to 'mainstream' parasitologists and ecologists.

Parasite Diversity and Diversification

Author: Serge Morand
Publisher: Cambridge University Press
ISBN: 1316239934
Format: PDF, ePub
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The development of molecular tools has dramatically increased our knowledge of parasite diversity and the vectors that transmit them. From viruses and protists to arthropods and helminths, each branch of the Tree of Life offers an insight into significant, yet cryptic, biodiversity. Alongside this, the studies of host-parasite interactions and parasitism have influenced many scientific disciplines, such as biogeography and evolutionary ecology, by using comparative methods based on phylogenetic information to unravel shared evolutionary histories. Parasite Diversity and Diversification brings together two active fields of research, phylogenetics and evolutionary ecology, to reveal and explain the patterns of parasite diversity and the diversification of their hosts. This book will encourage students and researchers in the fields of ecology and evolution of parasitism, as well as animal and human health, to integrate phylogenetics into the investigation of parasitism in evolutionary ecology, health ecology, medicine and conservation.

New Directions in Conservation Medicine

Author: A. Alonso Aguirre
Publisher: Oxford University Press
ISBN: 0199909059
Format: PDF, ePub, Docs
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In recent years, species and ecosystems have been threatened by many anthropogenic factors manifested in local and global declines of populations and species. Although we consider conservation medicine an emerging field, the concept is the result of the long evolution of transdisciplinary thinking within the health and ecological sciences and the better understanding of the complexity within these various fields of knowledge. Conservation medicine was born from the cross fertilization of ideas generated by this new transdisciplinary design. It examines the links among changes in climate, habitat quality, and land use; emergence and re-emergence of infectious agents, parasites and environmental contaminants; and maintenance of biodiversity and ecosystem functions as they sustain the health of plant and animal communities including humans. During the past ten years, new tools and institutional initiatives for assessing and monitoring ecological health concerns have emerged: landscape epidemiology, disease ecological modeling and web-based analytics. New types of integrated ecological health assessment are being deployed; these efforts incorporate environmental indicator studies with specific biomedical diagnostic tools. Other innovations include the development of non-invasive physiological and behavioral monitoring techniques; the adaptation of modern molecular biological and biomedical techniques; the design of population level disease monitoring strategies; the creation of ecosystem-based health and sentinel species surveillance approaches; and the adaptation of health monitoring systems for appropriate developing country situations. New Directions of Conservation Medicine: Applied Cases of Ecological Health addresses these issues with relevant case studies and detailed applied examples. New Directions of Conservation Medicine challenges the notion that human health is an isolated concern removed from the bounds of ecology and species interactions. Human health, animal health, and ecosystem health are moving closer together and at some point, it will be inconceivable that there was ever a clear division.

The Balance of Nature and Human Impact

Author: Klaus Rohde
Publisher: Cambridge University Press
ISBN: 1107310946
Format: PDF, Docs
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It is clear that nature is undergoing rapid changes as a result of human activities such as industry, agriculture, travel, fisheries and urbanisation. What effects do these activities have? Are they disturbing equilibria in ecological populations and communities, thus upsetting the balance of nature, or are they enhancing naturally occurring disequilibria, perhaps with even worse consequences? It is often argued that large-scale fluctuations in climate and sea-levels have occurred over and over again in the geological past, long before human activities could possibly have had any impact, and that human effects are very small compared to those that occur naturally. Should we conclude that human activity cannot significantly affect the environment, or are these naturally occurring fluctuations actually being dangerously enhanced by humans? This book examines these questions, first by providing evidence for equilibrium and non-equilibrium conditions in relatively undisturbed ecosystems, and second by examining human-induced effects.

Tangled Trees

Author: Roderic D. M. Page
Publisher: University of Chicago Press
ISBN: 9780226644660
Format: PDF, ePub, Docs
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In recent years, the use of molecular data to build phylogenetic trees and sophisticated computer-aided techniques to analyze them have led to a revolution in the study of cospeciation. Tangled Trees provides an up-to-date review and synthesis of current knowledge about phylogeny, cospeciation, and coevolution. The opening chapters present various methodological and theoretical approaches, ranging from the well-known parsimony approach to "jungles" and Bayesian statistical models. Then a series of empirical chapters discusses detailed studies of cospeciation involving vertebrate hosts and their parasites, including nematodes, viruses, and lice. Tangled Trees will be welcomed by researchers in a wide variety of fields, from parasitology and ecology to systematics and evolutionary biology. Contributors: Sarah Al-Tamimi, Michael A. Charleston, Dale H. Clayton, James W. Demastes, Russell D. Gray, Mark S. Hafner, John P. Huelsenbeck, J.-P. Hugot, Kevin P. Johnson, Peter Kabat, Bret Larget, Joanne Martin, Yannis Michalakis, Roderic D. M. Page, Ricardo L. Palma, Adrian M. Paterson, Susan L. Perkins, Andy Purvis, Bruce Rannala, David L. Reed, Fredrik Ronquist, Theresa A. Spradling, Jason Taylor, Michael Tristem

Biologie von Parasiten

Author: Richard Lucius
Publisher: Springer-Verlag
ISBN: 3662548623
Format: PDF, Kindle
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Die 3. vollständig überarbeitete Auflage dieses Buches führt in die Biologie parasitärer Einzeller, Würmer und Arthropoden ein. Die Autoren bieten auf Grundlage der aktuellen Systematik eine Übersicht über die verschiedenen Parasitengruppen. Ausführlich wird auf wichtige Infektionserreger, wie die der Malaria, Schlafkrankheit und Toxoplasmose eingegangen, wobei die molekularen Grundlagen der Pathogene erläutert werden. Außerdem werden Parasiten als Krankheitsüberträger dargestellt und wichtige Infektionskrankheiten, die bei Tieren vorkommen, besprochen. Daher wendet sich dieses Buch sowohl an Biologen, als auch an Veterinärmediziner und Mediziner. In den einzelnen Kapiteln kommen die Anpassungen an die parasitische Lebensweise zur Sprache. Anhand häufiger Vertreter werden exemplarisch typische Lebenszyklen, die Immunreaktionen und die resultierenden Krankheitsbilder erklärt. Viele Abbildungen veranschaulichen dabei den Text. Die Prüfungsfragen am Ende eines jeden Kapitels helfen den Lerninhalt zu rekapitulieren und zu verinnerlichen.