Author: Elizabeth Ellen CronePublisher:
ISBN:
Category : Cardamine
Languages : en
Pages : 190
Book Description
Causes and Consequences of Complex Population Dynamics in an Annual Plant, Cardamine Pensylvanica
Author: Elizabeth Ellen CronePublisher:
ISBN:
Category : Cardamine
Languages : en
Pages : 190
Book Description
Causes and Consequences of Complex Population Dynamics in an Annual Plant, Cardamine Pensylvanica
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 96
Book Description
The relative importance of density-dependent and density-independent factors in determining the population dynamics of plants has been widely debated with little resolution. In this thesis, the author explores the effects of density-dependent population regulation on population dynamics in Cardamine pensylvanica, an annual plant. In the first chapter, she shows that experimental populations of C. pensylvanica cycled from high to low density in controlled constant-environment conditions. These cycles could not be explained by external environmental changes or simple models of direct density dependence (N{sub t+1} = f[N{sub t}]), but they could be explained by delayed density dependence (N{sub t+1} = f[N{sub t}, N{sub t+1}]). In the second chapter, she shows that the difference in the stability properties of population growth models with and without delayed density dependence is due to the presence of Hopf as well as slip bifurcations from stable to chaotic population dynamics. She also measures delayed density dependence due to effects of parental density on offspring quality in C. pensylvanica and shows that this is large enough to be the cause of the population dynamics observed in C. pensylvanica. In the third chapter, the author extends her analyses of density-dependent population growth models to include interactions between competing species. In the final chapter, she compares the effects of fixed spatial environmental variation and variation in population size on the evolutionary response of C. pensylvanica populations.
The American Naturalist
Author: Ecology
Author: POPULATION DYNAMICS OF ANNUAL PLANTS OF EARLY SUCCESSIONAL COMMUNITIES
Author: Dudley Jones RaynalPublisher:
ISBN:
Category : Plant populations
Languages : en
Pages : 0
Book Description
American Doctoral Dissertations
Author: Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 896
Book Description
Ecology Abstracts
Author: Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 406
Book Description
Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.
Mechanisms and Functions of Brain and Behavioural Asymmetries
Author: Royal Society (Great Britain). Discussion MeetingPublisher:
ISBN:
Category : Ability
Languages : en
Pages : 812
Book Description
Bibliography of Agriculture
Author: Nonlinear Dynamics and Chaos
Author: J. M. T. ThompsonPublisher: John Wiley & Sons
ISBN: 9780471876847
Category : Science
Languages : en
Pages : 492
Book Description
Ein angesehener Bestseller - jetzt in der 2.aktualisierten Auflage! In diesem Buch finden Sie die aktuellsten Forschungsergebnisse auf dem Gebiet nichtlinearer Dynamik und Chaos, einem der am schnellsten wachsenden Teilgebiete der Mathematik. Die seit der ersten Auflage hinzugekommenen Erkenntnisse sind in einem zusätzlichen Kapitel übersichtlich zusammengefasst.