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Author: International Rice Research Institute
Publisher: Int. Rice Res. Inst.
ISBN: 9711040220
Category : Delphacidae
Languages : en
Pages : 377
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Book Description
Author: International Rice Research Institute
Publisher: Int. Rice Res. Inst.
ISBN: 9711040220
Category : Delphacidae
Languages : en
Pages : 377
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Book Description
Author: Bert Hölldobler
Publisher: Harvard University Press
ISBN: 0674040759
Category : Ants
Languages : en
Pages : 784
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Book Description
From the Arctic to South Africa - one finds them everywhere: Ants. Making up nearly 15% of the entire terrestrial animal biomass, ants are impressive not only in quantitative terms, they also fascinate by their highly organized and complex social system. Their caste system, the division of labor, the origin of altruistic behavior and the complex forms of chemical communication makes them the most interesting group of social organisms and the main subject for sociobiologists. Not least is their ecological importance: Ants are the premier soil turners, channelers of energy and dominatrices of the insect fauna. TOC:The importance of ants.- Classification and origins.- The colony life cycle.- Altruism and the origin of the worker caste.- Colony odor and kin recognition.- Queen numbers and domination.- Communication.- Caste and division of labor.- Social homeostasis and flexibility.- Foraging and territorial strategies.- The organization of species communities.- Symbioses among ant species.- Symbioses with other animals.- Interaction with plants.- The specialized predators.- The army ants.- The fungus growers.- The harvesters.- The weaver ants.- Collecting and culturing ants.- Glossary.- Bibliography.- Index.
Author:
Publisher: Government Printing Office
ISBN: 9780160729966
Category : Gardening
Languages : en
Pages : 310
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Book Description
NOTE: NO FURTHER DISCOUNT FOR THIS PRODUCT -- Significantly reduced price -- Overstock List Price Describes invasive, non-native plants moving into Alaska.
Author: T.R. New
Publisher: Springer Science & Business Media
ISBN: 1402060475
Category : Science
Languages : en
Pages : 94
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Book Description
This issue of Journal of Insect Conservation is the first to be dedicated entirely to beetles. It contains a number of papers to demonstrate the variety and scope of problems and conservation concerns that surround these insects. A short introductory perspective is followed by eight original contributions, in which beetles from many parts of the world are considered, and in which some major threats to their wellbeing are evaluated.
Author: Randall T. Schuh
Publisher: Cornell University Press
ISBN: 9780801420665
Category : Science
Languages : en
Pages : 362
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Book Description
This monumental reference work treats an entire worldwide order of insects. It summarizes, from both a biological and sytematic perspective, current knowledge on the Heteroptera, or true bugs, a group containing approximately 35,000 species, many of which are important to agriculture and public health. To introduce the reader to this group, Randall T. Schuh and James A. Slater offer chapters on the history of the study of the Heteroptera, research techniques, and sources of specimens. They also cover attributes of general biological interest, including habitats, habits, mimicry, and wing polymorphism; selected taxa of economic importance; and basic morphology.Presenting a current classification of the Heteroptera, the authors synthesize to the subfamily and sometimes tribal level the enormous, scattered literature, including diagnoses, keys, general natural history, a summary of distributions, and a listing of important faunistic works. In addition to a wealth of detailed illustrations, they provide a glossary to help the reader deal with the confusing terminology that has evolved over the years, as well as an extensive bibliography of more than 1350 entries.Meticulously prepared by two of the world's leading specialists, this major work will be the standard reference on the Heteroptera for many years to come.
Author: Sergei Meyen
Publisher: Springer Science & Business Media
ISBN: 9400931514
Category : Science
Languages : en
Pages : 446
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Book Description
There have been at least ten English-language textbooks of palaeobotany since D. H. Scott published the first edition of Studies inFossilBotany in 1900. Most have been written by scientists who were primarily botanists by training, and were aimed largely at a readership familiar with living plants. They tended to follow a general pattern of an introductory chapter on preservation of plants as fossils, followed by a systematic treatment, group by group. Only Seward in his Plant Life Through the Ages departed from this pattern in presenting a chronological sequence. In the present book, Meyen breaks with?is tradition. Although having a basically biological approach, he reaches out into all aspects of the history of plant life and the wider implication of its study. Only half of the present work deals sequentially with fossil plant groups, treated systematically. The remainder then explores those topics which most other textbooks have incidentally??e generally either ignored or have only mentioned rather problems of naming and classifying fragmentary plant fossils, their ecology; biogeography and palaeoclimatic significance and the contribution that?ey have made to the understanding of living plant morphology, and of the process of evolution.
Author: Benjamin Daydon Jackson
Publisher: London : Duckworth
ISBN:
Category : Botany
Languages : en
Pages : 504
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Book Description
Preface; Plan of the work; Glossary; Supplement.
Author: Richard James Wilkinson
Publisher:
ISBN:
Category : English language
Languages : en
Pages : 812
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Book Description
Author:
Publisher:
ISBN:
Category : Encyclopedias and dictionaries
Languages : en
Pages : 1216
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Book Description
Author: Bruce Turner
Publisher: Springer Science & Business Media
ISBN: 1468446525
Category : Science
Languages : en
Pages : 651
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Book Description
It is my hope that this collection of reviews can be profitably read by all who are interested in evolutionary biology. However, I would like to specifically target it for two disparate groups of biologists seldom men tioned in the same sentence, classical ichthyologists and molecular biologists. Since classical times, and perhaps even before, ichthyologists have stood in awe at the tremendous diversity of fishes. The bulk of effort in the field has always been directed toward understanding this diversity, i. e. , extracting from it a coherent picture of evolutionary processes and lineages. This effort has, in turn, always been overwhelmingly based upon morphological comparisons. The practical advantages of such compari sons, especially the ease with which morphological data can be had from preserved museum specimens, are manifold. But considered objectively (outside its context of "tradition"), morphological analysis alone is a poor tool for probing evolutionary processes or elucidating relationships. The concepts of "relationship" and of "evolution" are inherently genetic ones, and the genetic bases of morphological traits are seldom known in detail and frequently unknown entirely. Earlier in this century, several workers, notably Gordon, Kosswig, Schmidt, and, in his salad years, Carl Hubbs, pioneered the application of genetic techniques and modes of reasoning to ichthyology. While certain that most contemporary ichth yologists are familiar with this body of work, I am almost equally certain that few of them regard it as pertinent to their own efforts.
