Download or read book Population Ecology of the Gypsy Moth written by Henry A. Bess and published by . This book was released on 1961 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Ecology of the Gypsy Moth Porthetria Dispar L Lepidoptera written by Henry Alver Bess and published by Hassell Street Press. This book was released on 2021-09-09 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book Effects of Temperature and Host Distribution on Gypsy Moth Growth Rates Along Its Expanding Population Front written by Riley Metz and published by . This book was released on 2017 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The gypsy moth, Lymantria dispar (L.), has been a major pest species in North American forests for >100 years and has caused defoliation on >369,000 km2 since 1924. Due to the economic and ecological consequences of gypsy moth, many aspects of its population biology and ecology have been studied. However, much prior work has focused at local spatial scales and in established outbreaking populations. In contrast, gypsy moth invasion dynamics are understudied in newly established populations and across landscape scales. I first analyzed the effect of sub- and supraoptimal temperatures on nascent gypsy moth population growth rates, and the spatial patterns of growth rates, along the expanding invasion front in the eastern United States. Second, I quantified the relationship between primary and secondary host plant fragmentation and gypsy moth population growth rates along the expanding invasion front. The data from this study indicate that there are geographical differences in how temperature and host fragmentation is affecting gypsy moth growth rates, and the spatial structure of those growth rates within expanding populations along the leading edge of the invasion front. Furthermore, the results from this study emphasize the important role that secondary hosts play in establishing populations. The results from this study could help in the development of more accurate risk assessment models pertaining to gypsy moth invasion potential.

Download or read book Population Dynamics of the Gypsy Moth written by Robert W. Campbell and published by . This book was released on 1978 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Gypsy Moth and Its Natural Enemies written by Robert W. Campbell and published by . This book was released on 1975 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Gypsy Moth Management in the United States Appendix G Ecological risk assessment written by and published by . This book was released on 1995 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Gypsy Moth written by Charles C. Doane and published by . This book was released on 1981 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Untersuchung zur Populations kologie des Schwammspinners in ausgew hlten Untersuchungsfl chen in S dhessen written by Sarina von Wensierski and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamics of Forest Insect Populations written by Alan A. Berryman and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book The Analysis of Numerical Change in Gypsy Moth Populations written by Robert W. Campbell and published by . This book was released on 1967 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book POPULATION DYNAMICS OF THE GYPSY MOTH written by Robert Wilson CAMPBELL and published by . This book was released on 1961 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gypsy Moth Egg Mass Sampling for Decision making written by and published by . This book was released on 1994 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Controlling the Gypsy Moth Through an Understanding of the Forest Pest s Population Dynamics and an Evaluation of Past and Current Control Efforts written by Peter M. Barclay and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forecasting Gypsy Moth Egg mass Density written by Robert W. Campbell and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gypsy Moth Management in the United States a Cooperative Approach written by and published by . This book was released on 1995 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gypsy Moth Management in the United States written by United States. Forest Service and published by . This book was released on 1995 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The History Biology Damage and Control of the Gypsy Moth Porthetria Dispar L written by Michael H. Gerardi and published by Fairleigh Dickinson Univ Press. This book was released on 1979 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive study of the life stages, biology, ecology, behavior, dynamics, economic importance, and success and failure of large- and small- scale control programs of the most destructive forest pest in the northern United States today.