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Author : Robert W. Campbell,Northeastern Forest Experiment Station (Radnor, Pa.)
Publisher : Unknown
Page : 128 pages
File Size : 52,7 Mb
Release : 1978
Category : Gypsy moth
ISBN : UIUC:30112104067514
Author : Robert W. Campbell
Publisher : Unknown
Page : 44 pages
File Size : 53,8 Mb
Release : 1967
Category : Gypsy moth
ISBN : MINN:31951D029816786
Author : Alan A. Berryman
Publisher : Springer Science & Business Media
Page : 608 pages
File Size : 48,8 Mb
Release : 2013-06-29
Category : Science
ISBN : 9781489907899
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.
Author : Judith Anne Hough
Publisher : Unknown
Page : 144 pages
File Size : 47,8 Mb
Release : 1977
Category : Insect populations
ISBN : CORNELL:31924017651971
Author : Yuri N. Baranchikov,Galina N. Nikitenko,Michael E. Montgomery
Publisher : Unknown
Page : 172 pages
File Size : 52,9 Mb
Release : 1998
Category : Forests and forestry
ISBN : MINN:31951D02964903M
Author : Sandra Fosbroke,Kurt William Gottschalk
Publisher : Unknown
Page : 144 pages
File Size : 51,7 Mb
Release : 1993
Category : Gypsy moth
ISBN : MINN:31951D02969707X
Author : Anonim
Publisher : Unknown
Page : 132 pages
File Size : 41,9 Mb
Release : 1969
Category : Forest insects
ISBN : UIUC:30112104073405
Author : Robert W. Campbell
Publisher : Unknown
Page : 32 pages
File Size : 41,5 Mb
Release : 1975
Category : Gypsy moth
ISBN : UIUC:30112019262812
Patterns of gypsy moth behavior are described, especially those related to population density. Natural mortality-causing factors that operate against this insect are also described. Several agents kill subadult male and female gypsy moths at different rates. Major determinants of year-to-year changes in gypsy moth numbers are described.
Author : Charles P. Schwalbe
Publisher : Unknown
Page : 12 pages
File Size : 53,8 Mb
Release : 1979
Category : Gypsy moth
ISBN : UIUC:30112019256376
Author : Naomi Cappuccino,Peter W. Price
Publisher : Elsevier
Page : 453 pages
File Size : 49,5 Mb
Release : 1995-09-01
Category : Science
ISBN : 9780080539256
An understanding of the dynamics of populations is critically important to ecologists, evolutionary biologists, wildlife managers, foresters, and many other biologists. This edited treatise brings together the latest research on how populations fluctuate in size, the factors that drive these changes, and the theories explaining how populations are regulated. The book also includes specific chapters dealing with insects of economic importance.
Author : Alan A. Berryman
Publisher : Garland Science
Page : 256 pages
File Size : 52,7 Mb
Release : 2020-11-25
Category : Science
ISBN : 9781000101850
This book provides an introduction to population dynamics, exploring rules that govern change in any dynamic system and applying these general principles to populations of living organisms. Principles of Population Dynamics and their Application is aimed at applied ecologists, resource managers. and pest managers. It is also aimed at undergraduate students taking courses in forestry, fisheries, widlife and pest management.
Author : Richard C. Reardon
Publisher : Unknown
Page : 28 pages
File Size : 49,7 Mb
Release : 1993
Category : Forest insects
ISBN : MINN:31951D01851200K
Author : J. Baumgartner
Publisher : CRC Press
Page : 262 pages
File Size : 48,5 Mb
Release : 2020-03-09
Category : Science
ISBN : 9781000657937
One of the themes of the 20th International Congress of Entomology held in Florence in August 1996 was Ecology and Population Dynamics, with papers presented on single species dynamics, population interactions, and community ecology. This book contains a selection of the papers that were presented, and gives a late-1990s picture of the latest research in this fast developing area.
Author : Robert W. Campbell
Publisher : Unknown
Page : 24 pages
File Size : 40,7 Mb
Release : 1973
Category : Gypsy moth
ISBN : UIUC:30112104066771
Author : A. S. Isaev,Vladislav G. Soukhovolsky,O. V. Tarasova,E. N. Palnikova,A. V. Kovalev
Publisher : John Wiley & Sons
Page : 304 pages
File Size : 40,7 Mb
Release : 2017-03-21
Category : Science
ISBN : 9781119407522
Research in insect population dynamics is important for more reasons than just protecting forest communities. Insect populations are among the main ecological units included in the analysis of stability of ecological systems. Moreover, it is convenient to test new methods of analyzing population and community stability on the insect-related data, as by now ecologists and entomologists have accumulated large amounts of such data. In this book, the authors analyze population dynamics of quite a narrow group of insects – forest defoliators. It is hoped that the methods proposed herein for the analysis of population dynamics of these species may be useful and effective for analyzing population dynamics of other animal species and their effects and role in global warming. What can insects tell us about our environment and our ever-changing climate? It is through studies like this one that these important answers can be obtained, along with data on the insects and their behaviors themselves. The authors present new theories on modeling and data accumulation, using cutting-edge processes never before published for such a wide audience. This volume presents the state-of-the-art in the science, and it is an essential piece of any entomologist’s and forest engineer’s library.