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Author: D.M. Stoddart Publisher: Springer Science & Business Media ISBN: 9400957726 Category : Science Languages : en Pages : 396
Book Description
From their largely descriptive beginnings about a half century ago, studies on the ecology of small mammals have mushroomed in number, scope, content and complexity. Yet strangely, or perhaps not so strangely if one considers the extent and complexity of ecological interactions, the main problems for which the early workers sought answers still defy complete analysis, and basic hypotheses remain untested if not even untestable. The same holds true for so many branches of animal ecology that it seems to be the complexity of the concepts that frustrates efforts rather than the subject species. Like all branches of science, small mammal ecology has been subject to a series of fashionable approaches, one following another as tech nology penetrates previously impregnable regions. Doubtless the future development of our science will be punctuated by wave upon wave of new endeavour in whole fields that are perhaps even yet unidentified. Answers to the complex questions which ecologists ask do not come easily. Increasingly though, they arise in direct proportion to the efforts expended upon their elucidation. Many studies have achieved such a high level of elegance, in terms of manpower and apparatus, that there is a feeling that questions asked when such resources are unavailable are not worth asking. Nothing could be further from the truth. Many a complex model has failed fully to explain the phenomenon for which it was construc ted because of a lack of basic field data on the species' natural h~story.
Author: D.M. Stoddart Publisher: Springer Science & Business Media ISBN: 9400957726 Category : Science Languages : en Pages : 396
Book Description
From their largely descriptive beginnings about a half century ago, studies on the ecology of small mammals have mushroomed in number, scope, content and complexity. Yet strangely, or perhaps not so strangely if one considers the extent and complexity of ecological interactions, the main problems for which the early workers sought answers still defy complete analysis, and basic hypotheses remain untested if not even untestable. The same holds true for so many branches of animal ecology that it seems to be the complexity of the concepts that frustrates efforts rather than the subject species. Like all branches of science, small mammal ecology has been subject to a series of fashionable approaches, one following another as tech nology penetrates previously impregnable regions. Doubtless the future development of our science will be punctuated by wave upon wave of new endeavour in whole fields that are perhaps even yet unidentified. Answers to the complex questions which ecologists ask do not come easily. Increasingly though, they arise in direct proportion to the efforts expended upon their elucidation. Many studies have achieved such a high level of elegance, in terms of manpower and apparatus, that there is a feeling that questions asked when such resources are unavailable are not worth asking. Nothing could be further from the truth. Many a complex model has failed fully to explain the phenomenon for which it was construc ted because of a lack of basic field data on the species' natural h~story.
Author: Gary W. Barrett Publisher: Springer Science & Business Media ISBN: 0387216227 Category : Science Languages : en Pages : 355
Book Description
A summary of much of the experimental work on the spatial ecology of small mammals. This field has entered an exciting stage with such new techniques as GIS and systems modeling becoming available. Leading contributors describe and analyze the most well-known case studies and provide new insights into how landscape patterns and processes have had an impact on small mammals and how small mammals have, in turn, affected landscape structure and composition.
Author: Robert McCleery Publisher: JHU Press ISBN: 1421442124 Category : Science Languages : en Pages : 381
Book Description
All the information researchers, students, and practitioners need to conducted innovative, state-of-the-art research on small mammals. Rodents and insectivores constitute the vast majority of mammals on our planet, yet we often overlook the importance of this group. As seed dispersers, prey species, and disease regulators, these animals are critical to the functioning of our ecological systems. While considerable material exists that describes these species, there has been no dedicated guide explaining how to effectively research them—until now. Methods for Ecological Research on Terrestrial Small Mammals is a one-stop resource compiling all the information readers need to conduct state-of-the-art research on small terrestrial mammals across the globe. The authors cover the full spectrum of issues, from capture, handling, identification, reproduction, demography, and taxonomy to behavior, diet, evolution, diseases, movements, morphometrics, and more. They also: • highlight the latest techniques while carefully explaining the tried-and-tested methods needed to conduct rigorous scientific inquiries; • provide step-by-step examples and case studies, demonstrating how the methods discussed can be used in actual research projects; • compare and contrast methodologies, analytical techniques, and software packages, helping researchers determine which pathways and tools will yield the best results for their studies. A comprehensive and invaluable resource, Methods for Ecological Research on Terrestrial Small Mammals is a must-have for any ecologist working on small mammals.
Author: S. Halle Publisher: Springer ISBN: 364218264X Category : Science Languages : en Pages : 331
Book Description
Environmental conditions change considerably in the course of 24 h with respect to abiotic factors and intra- and interspecific interactions. These changes result in limited time windows of opportunity for animal activities and, hence, the question of when to do what is subject to fitness maximisation. This volume gives a current overview of theoretical considerations and empirical findings of activity patterns in small mammals, a group in which the energetic and ecological constraints are particularly severe and the diversity of activity patterns is particularly high. Following a comparative ecological approach, for the first time activity timing is consequently treated in terms of behavioural and evolutionary ecology, providing the conceptual framework for chronoecology as a new subdiscipline within behavioural ecology. An extensive Appendix gives an introduction to methods of activity modelling and to tools for statistical pattern analysis.
Author: N.C. Stenseth Publisher: Springer Science & Business Media ISBN: 9401123381 Category : Science Languages : en Pages : 365
Book Description
4.1.1 Demographic significance Confined populations grow more rapidly than populations from which dispersal is permitted (Lidicker, 1975; Krebs, 1979; Tamarin et at., 1984), and demography in island populations where dispersal is restricted differs greatly from nearby mainland populations (Lidicker, 1973; Tamarin, 1977, 1978; Gliwicz, 1980), clearly demonstrating the demographic signi ficance of dispersal. The prevalence of dispersal in rapidly expanding populations is held to be the best evidence for presaturation dispersal. Because dispersal reduces the growth rate of source populations, it is generally believed that emigration is not balanced by immigration, and that mortality of emigrants occurs as a result of movement into a 'sink' of unfavourable habitat. If such dispersal is age- or sex-biased, the demo graphy of the population is markedly affected, as a consequence of differ ences in mortality in the dispersive sex or age class. Habitat heterogeneity consequently underlies this interpretation of dispersal and its demographic consequences, although the spatial variability of environments is rarely assessed in dispersal studies.
Author: S. Morand Publisher: Springer Science & Business Media ISBN: 4431360255 Category : Science Languages : en Pages : 647
Book Description
This book provides a comprehensive survey of the diversity and biology of metazoan parasites affecting small mammals, of their impact on host individuals and populations, and of the management implications of these parasites for conservation biology and human welfare. Designed for a broad, multidisciplinary audience, the book is an essential resource for researchers, students, and practitioners alike.
Author: D.M. Stoddart
Author: D.M. Stoddart
Author: Gary W. Barrett
Author: Joseph F. Merritt
Author: Robert McCleery
Author: S. Halle
Author: N.C. Stenseth
Author: Michael J. Delany
Author: M. J. Delany
Author: S. Morand
Author: John B. Calhoun