The Dynamics Of Insect And Bird Populations In Pine Woods
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The Dynamics Of Insect And Bird Populations In Pine Woods
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Author : Lukas Tinbergen
language : en
Publisher: Brill Archive
Release Date : 1960
The Dynamics Of Insect And Bird Populations In Pine Woods written by Lukas Tinbergen and has been published by Brill Archive this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with Animal ecology categories.
Dynamics Of Forest Insect Populations
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Author : Alan A. Berryman
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Dynamics Of Forest Insect Populations written by Alan A. Berryman and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.
Insects multiply. Destruction reigns. There is dismay, followed by outcry, and demands to Authority. Authority remembers its experts or appoints some: they ought to know. The experts advise a Cure. The Cure can be almost anything: holy water from Mecca, a Government Commis sion, a culture of bacteria, poison, prayers denunciatory or tactful, a new god, a trap, a Pied Piper. The Cures have only one thing in common: with a little patience they always work. They have never been known entirely to fail. Likewise they have never been known to prevent the next outbreak. For the cycle of abundance and scarcity has a rhythm of its own, and the Cures are applied just when the plague of insects is going to abate through its own loss of momentum. -Abridged, with insects in place of voles, from C. Elton, 1924, Voles, Mice and Lemmings, with permission of Oxford University Press This book is an enquiry into the "natural rhythms" of insect abundance in forested ecosystems and into the forces that give rise to these rhythms. Forests form unique environ ments for such studies because one can find them growing under relatively natural (pri meval) conditions as well as under the domination of human actions. Also, the slow growth and turnover rates of forested ecosystems enable us to investigate insect popula tion dynamics in a plant environment that remains relatively constant or changes only slowly, this in contrast to agricultural systems, where change is often drastic and frequent.
Proceedings Of The Fifth Berkeley Symposium On Mathematical Statistics And Probability
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Author : Lucien Marie Le Cam
language : en
Publisher: Univ of California Press
Release Date : 1967
Proceedings Of The Fifth Berkeley Symposium On Mathematical Statistics And Probability written by Lucien Marie Le Cam and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Biometry categories.
Wildlife Abstracts
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Author : U.S. Fish and Wildlife Service
language : en
Publisher:
Release Date : 1954
Wildlife Abstracts written by U.S. Fish and Wildlife Service and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1954 with Animals categories.
International Review Of Forestry Research
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Author : John A. Romberger
language : en
Publisher: Elsevier
Release Date : 2013-10-22
International Review Of Forestry Research written by John A. Romberger and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
International Review of Forestry Research, Volume 1 is a collection of reviews and summaries of world literature concerning defined problem areas in forestry research. This book is composed of seven chapters, and starts with a general survey of the historical development of international forestry research, specifically in Central Europe, since the origin of forest management and of forestry as a science lies on it. This historical development includes historical methods in the practice of forest science, human influences, economics, culture, and laws. The subsequent chapters describe the methods for improvement of forest growth on swamps, the concept of nutrient requirement in forestry, and the methods for determining nutrient requirements of forest trees and stands. These topics are followed by discussions on the biological and environmental aspects of forest site appraisal systems; the anatomy, chemistry, and physiology of bark; and advances in the physiology and biochemistry of tree seeds during maturation, storage, and germination. The concluding chapter considers the development of harmonious control in agricultural, horticultural, and forestry crops, as well as the human influence on regulation and determination of insect populations. This book will prove useful to forest scientists, research workers, teachers, advanced students, administrators, economists, and forest and land managers.
Agriculture Handbook
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Author :
language : en
Publisher:
Release Date : 1979
Agriculture Handbook written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Agriculture categories.
Set includes revised editions of some issues.
Wildlife Habitats In Managed Forests
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Author : Jack Ward Thomas
language : en
Publisher:
Release Date : 1979
Wildlife Habitats In Managed Forests written by Jack Ward Thomas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Forest animals categories.
That is what this book is about. It is a framework for planning, in which habitat is the key to managing wildlife and making forest managers accountable for their actions. This book is based on the collective knowledge of one group of resource professionals and their understanding about how wildlife relate to forest habitats. And it provides a longoverdue system for considering the impacts of changes in forest structure on all resident wildlife.
Introduction To Forest And Shade Tree Insects
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Author : Bozzano G Luisa
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Introduction To Forest And Shade Tree Insects written by Bozzano G Luisa and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Technology & Engineering categories.
This comprehenisive text approaches the subject from an ecological/evolutionary biological perspective. The assumption is that one cannot study forest insects without understanding the dynamics of the relationship between an insect and its host plant. This relationship includes knowing what factors control forest insect populations such as food, food quality, tree vigor, host selection, and symbiotic relationships. The authors also discuss tree-injuring insects from the perspective of their influence on tree physiology and growth as well as economic and commercial effects. The book represents a "modern" approach to the topic of forest and shade tree insects; is well-illustrated; and includes a comprehensive primary reference list.
The European Pine Sawfly
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Author : Nikolaĭ Grigorʹevich Kolomiet︠s︡
language : en
Publisher:
Release Date : 1979
The European Pine Sawfly written by Nikolaĭ Grigorʹevich Kolomiet︠s︡ and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Diprionidae categories.
Populations In A Seasonal Environment Mpb 5
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Author : Stephen D. Fretwell
language : en
Publisher: Princeton University Press
Release Date : 2020-03-31
Populations In A Seasonal Environment Mpb 5 written by Stephen D. Fretwell and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-31 with Science categories.
Most organisms live in a seasonal environment. During their life cycles, some species face seasons of cold and heat, aridity and abundant rainfall, migration and stable residence, breeding and nonbreeding. Populations grow and decline as supplies of materials essential to their survival wax and wane. Such qualitative truths as these flow obviously from field observations. In this original monograph, Stephen Fretwell analyzes the highly complex interaction between a population and a regularly varying environment in an attempt to define and measure seasonality as a critical parameter in the general theory of population regulation. Concerned primarily with the size and the habitat distribution of populations, Professor Fretwell develops simple models that, when applied to specific populations, usually of birds, demonstrate the effect of seasonal variations on the regulation of populations. He maintains that seasonality, as a concept, is essential to a full understanding of environmental interaction. During the course of his exposition, the author offers several new hypotheses, including theories affecting the breeding, numbers, distribution, and diversity of wintering birds, and a theory affecting the body size of sparrows.