Dispersal

Author : Jean Clobert,Michel Baguette,Tim G. Benton,James M. Bullock
Publisher : OUP Oxford
Page : 496 pages
File Size : 41,9 Mb
Release : 2012-09-27
Category : Science
ISBN : 9780191640360

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Dispersal Ecology and Evolution by Jean Clobert,Michel Baguette,Tim G. Benton,James M. Bullock Pdf

Now that so many ecosystems face rapid and major environmental change, the ability of species to respond to these changes by dispersing or moving between different patches of habitat can be crucial to ensuring their survival. Understanding dispersal has become key to understanding how populations may persist. Dispersal Ecology and Evolution provides a timely and wide-ranging overview of the fast expanding field of dispersal ecology, incorporating the very latest research. The causes, mechanisms, and consequences of dispersal at the individual, population, species, and community levels are considered. Perspectives and insights are offered from the fields of evolution, behavioural ecology, conservation biology, and genetics. Throughout the book theoretical approaches are combined with empirical data, and care has been taken to include examples from as wide a range of species as possible - both plant and animal.

Author : Jean Clobert
Publisher : Unknown
Page : 0 pages
File Size : 55,6 Mb
Release : 2023
Category : Animal ecology
ISBN : 1383021368

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Dispersal by Jean Clobert Pdf

The ability of species to migrate and disperse has been of interest for many years. This text considers the mechanics, causes, and consequences of dispersal at the individual, population, and species level.

Author : Michael A. Steele
Publisher : Johns Hopkins University Press
Page : 480 pages
File Size : 45,9 Mb
Release : 2021-01-05
Category : Science
ISBN : 9781421439013

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Oak Seed Dispersal by Michael A. Steele Pdf

Theimer, an accomplished ecologist.

Author : L. van der Pijl
Publisher : Springer Science & Business Media
Page : 171 pages
File Size : 45,5 Mb
Release : 2012-12-06
Category : Nature
ISBN : 9783642961083

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Principles of Dispersal in Higher Plants by L. van der Pijl Pdf

Reviewers from diverse branches of botany have exerted pressure to have chapters dealing with their field extended. If only to cover his incompetence, the author could not accede to these requests. Nor was it possible to respond to Eastern European urgings to extend the classificatory terminology, especially in ChapterX. He is grateful for indications of factual shortcomings in the chosen field, especially for those by Dr. RUDOLF SCHMID (Ann Arbor), who provided exten sive comment. L. VAN DER PIlL The Hague, spring 1972 Preface to the First Edition The work offered here is a companion volume to the work by K. FAEGRI and 1. VAN DER PIJL, Principles of Pollination Ecology, whim. deals with the preced ing phase of reproduction in plants. In the present work too, the emphasis is on principles and ecology. It is neither an enumeration of mechanisms, nor a compilation of cases. RIDLEY'S monumental work The Dispersal of Plants Throughout the World comprises 700 large pages of small print, and research has proceeded since then. Though this work is more than just a compilation and contains much insight and thoughts on principles in addition to reviews, its completeness hinders its use as a text book. As a reference work, it is unsurpassed and the writer made frequent use of it. The writer paid special attention to functional backgrounds for the use of taxonomists working with "characters" and to biosystematics at the macro-level.

Author : British Ecological Society. Symposium
Publisher : Cambridge University Press
Page : 478 pages
File Size : 54,8 Mb
Release : 2002-08
Category : Nature
ISBN : 0521549310

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Dispersal Ecology by British Ecological Society. Symposium Pdf

Dispersal has become central to many questions in theoretical and applied ecology in recent years. In this volume a team of leading ecologists aim to provide the advanced student and researcher with a comprehensive review of dispersal and its implications for modern ecology.

Author : N.C. Stenseth,W.Z. Lidicker
Publisher : Springer Science & Business Media
Page : 365 pages
File Size : 48,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401123389

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Animal Dispersal by N.C. Stenseth,W.Z. Lidicker Pdf

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 : David R. Murray
Publisher : Academic Press
Page : 322 pages
File Size : 45,6 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780323139885

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Seed Dispersal by David R. Murray Pdf

Seed Dispersal focuses on the mechanics and processes involved in seed dispersal, including its implications in ecology, animal behavior, plant and animal biogeography, speciation, and evolution. The selection first elaborates on the aerial motion of seeds, fruits, spores, and pollen and seed dispersal by water. Discussions focus on seed dispersal by rain, river, and flood, effective seed dispersal by ocean currents compared to other vectors, aerodynamic forces and their effects, and launching and release mechanisms. The text then takes a look at seed dispersal syndromes in Australian Acacia, including inference of dispersal syndromes, seed dispersal syndromes, ecological consequences of seed dispersal, and evolutionary derivation of dispersal syndromes. The publication ponders on seed dispersal by fruit-eating birds and mammals, rodents as seed consumers and dispersers, and seed dispersal in relation to fire. Topics include fire as a dispersal vector, long distance dispersal, granivorous rodents and the fates of seeds, determinants of the fate path, population ecology of seed dispersal, and foraging for fruits. The selection is a valuable reference for researchers interested in the factors involved in seed dispersal.

Author : Peter Deines,Brendan J. M. Bohannan,Posy Elizabeth Busby,Steven Earl Lindow,Kyle Matthew Meyer,Zhong Wei
Publisher : Frontiers Media SA
Page : 152 pages
File Size : 42,7 Mb
Release : 2022-11-22
Category : Science
ISBN : 9782832506790

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The Role of Dispersal and Transmission in Structuring Microbial Communities by Peter Deines,Brendan J. M. Bohannan,Posy Elizabeth Busby,Steven Earl Lindow,Kyle Matthew Meyer,Zhong Wei Pdf

Author : Jean Clobert
Publisher : Oxford University Press
Page : 498 pages
File Size : 43,8 Mb
Release : 2012-09-27
Category : Nature
ISBN : 9780199608904

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Dispersal Ecology and Evolution by Jean Clobert Pdf

Provides an overview of the fast expanding field of dispersal ecology. The causes, mechanisms, and consequences of dispersal at the individual, population, species, and community levels are all considered.

Author : Michael A. Steele
Publisher : JHU Press
Page : 480 pages
File Size : 46,7 Mb
Release : 2021-01-05
Category : Science
ISBN : 9781421439020

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Oak Seed Dispersal by Michael A. Steele Pdf

The definitive examination of oak forest evolutionary ecology. Seed dispersal is a critical stage in the life cycle of most flowering plants. The process can have far-reaching effects on a species' biology, especially numerous aspects of its ecology and evolution. This is particularly the case for the oaks, in which the dispersal of the acorn is tied to numerous tree characteristics, as well as the behavior and ecology of the animals that feed on and move these seeds to their final destination. Forest structure, composition, and genetics often follow directly from the dispersal process—while also influencing it in turn. In Oak Seed Dispersal, Michael A. Steele draws on three decades of field research across the globe (e.g., the United States, Mexico, Central America, Europe, and China) to describe the interactions between oaks and their seed consumers. Rodents, birds, and insects, he writes, collectively influence the survival, movement, and germination of acorns, as well as the establishment of seedlings, often indicating a coevolutionary bond between oaks and their seed consumers. This bond can only be understood by unraveling the complex interactions that occur in the context of factors such as partial seed consumption due to acorn chemistry, scatterhoarding, predation of the seed consumers by other organisms, and the limiting effects of masting on insect, rodent, and jay damage. Offering new insights on how animal-mediated dispersal drives ecological and evolutionary processes in forest ecosystems, Oak Seed Dispersal also includes an overview of threatened oak forests across the globe and explains how a lack of acorn dispersal contributes to many important conservation challenges. Highly illustrated, the book includes photographs of key dispersal organisms and tactics, as well as a foreword by Stephen B. Vander Wall, a leading authority on food hoarding and animal-mediated seed dispersal, and beautiful artwork by Tad C. Theimer, also an accomplished ecologist.

Author : Douglas John Levey,Wesley R. Silva,Mauro Galetti
Publisher : CABI
Page : 530 pages
File Size : 55,6 Mb
Release : 2002
Category : Science
ISBN : 9780851995250

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Seed Dispersal and Frugivory by Douglas John Levey,Wesley R. Silva,Mauro Galetti Pdf

This book provides information on the historical and theoretical perspectives of biodiversity and ecology in tropical forests, plant and animal behaviour towards seed dispersal and plant-animal interactions within forest communities, consequences of seed dispersal, and conservation, biodiversity and management.

Author : Karen van Rheede van Oudtshoorn,Margaretha W. van Rooyen
Publisher : Springer Science & Business Media
Page : 249 pages
File Size : 49,9 Mb
Release : 2013-03-09
Category : Science
ISBN : 9783662035610

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Dispersal Biology of Desert Plants by Karen van Rheede van Oudtshoorn,Margaretha W. van Rooyen Pdf

Dispersal processes have important effects on plant distribution and abundance. Although adaptations to long range dispersal (telechory) are by no means rare in desert plants, many desert plant species do not possess any features to promote dispersal (atelechory), while others have structures that hamper dispersal (antitelechory). The high frequency with which atelechorous and antitelechorous mechanisms are present in plants inhabiting arid areas indicates the importance of these adaptations. Among the benefits derived from these adaptations are the spreading of germination over time, the provision of suitable conditions for germination and subsequent seedling establishment, and the maintenance of a reservoir of available seeds (seed bank). This book describes the ways and means - anatomical, morphological and ecological - by which dispersal in desert plants has evolved to ensure the survival of these species in their harsh and unpredictable environment.

Author : Patricia Hynes
Publisher : Policy Press
Page : 242 pages
File Size : 47,6 Mb
Release : 2011
Category : Law
ISBN : 9781847423269

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The Dispersal and Social Exclusion of Asylum Seekers by Patricia Hynes Pdf

This book establishes asylum seekers as a socially excluded group. It provides an overview of historic and contemporary dispersal systems, and it investigates the policy of dispersing asylum seekers across the UK and how this dispersal impacts their lives. It argues that deterrent asylum policies increase the sense of liminality experienced by individuals. The book challenges assumptions that asylum seekers should be socially excluded until they receive refugee status, and it illustrates how asylum seekers create their own sense of 'belonging' in the absence of official recognition.

Author : J. E. Lambert,P. E. Hulme,S. B. Vander Wall
Publisher : CABI
Page : 432 pages
File Size : 43,5 Mb
Release : 2005
Category : Science
ISBN : 085199072X

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Seed Fate by J. E. Lambert,P. E. Hulme,S. B. Vander Wall Pdf

This book presents current knowledge of seed fate in both natural and human-disturbed landscapes, from various regions of the world. Habitats considered range from mountain and arid deserts in the temperate zone, to savanna and lowland rainforests in tropical regions of the world. Particular attention is paid to plant diversity conservation when seed removal is affected by factors such as hunting, habitat fragmentation or intensive logging. Contributors include leading scientists involved in research on seed ecology and on animal-plant relationships from the perspective of both primary and secondary seed dispersal, and predation.

Author : Andrew J. Dennis,R.J. Green,E.W. Schupp
Publisher : CABI
Page : 704 pages
File Size : 55,6 Mb
Release : 2007
Category : Technology & Engineering
ISBN : 9781845931667

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Seed Dispersal by Andrew J. Dennis,R.J. Green,E.W. Schupp Pdf

Fresh concepts in the study of seed dispersal are spurring a host of exciting new questions, new answers to old questions, new methods and approaches, and a reinvigoration of the field.Seed Dispersal: Theory and its Application in a Changing World presents both recent advances and reviews of current knowledge demonstrating the vigour and vibrancy of the field. It provides new perspectives and directions at a time when efforts to meet growing environmental challenges threatening natural systems are of utmost importance.