Kategoria BISAC: Science >> Life Sciences - Zoology - Invertebrates

Many biological facts are irreconcilable with the assumption that larvae and adults evolved from the same genetic stock. The author of this book draws attention to these, and presents his alternative hypothesis that larvae have been transferred from one taxon to another.

In his previous book (Larvae and Evolution, 1992), the author used larval transfer to explain developmental anomalies in eight animal phyla. In the present book, he claims that the basic forms of all larvae and all embryos have been transferred from foreign taxa. This leads to a new, comprehensive theory on the origin...

Over the past three decades there has been a dramatic increase in theoretical and practical studies on insect natural enemies. The appeal of insect predators, and parasitoids in particular, as research animals derives from the relative ease with which many species may be cultured and experimented with in the laboratory, the simple life cycles of most parasitoids, and the increasing demand for biological pest control.

There is now a massive literature on insect natural enemies, so there is a great need for a general text that the enquiring student or research worker can use in...

Contemporary research on genetic control of disease-transmitting insects knows two kinds of scientists: those that work in the laboratory and those known as 'field people'. Over the last decade, both groups seem to have developed differing research priorities, address fundamentally different aspects within the overall discipline of infectious-disease control, and worse, have developed a scientific 'language' that is no longer understood by the 'other' party. This gap widens every day, between the North and the South, between ecologists and molecular biologists, geneticists and...

Contemporary research on genetic control of disease-transmitting insects knows two kinds of scientists: those that work in the laboratory and those known as 'field people'. Over the last decade, both groups seem to have developed differing research priorities, address fundamentally different aspects within the overall discipline of infectious-disease control, and worse, have developed a scientific 'language' that is no longer understood by the 'other' party. This gap widens every day, between the North and the South, between ecologists and molecular biologists, geneticists and...

East African forests, among the world's most biologically rich and diverse, are subject to multiple pressures, including insects. As the first work to focus exclusively on East African forest insects, this monograph distils 135 years of scientific and historical literature extending from before the colonial era to the present into an authoritative survey of this region's major pests of trees and wood, as well as their antagonists.

• Investigates the shell-rich Llandovery strata of the Anticosti ramp and presents the orthide brachiopods which reached their evolutionary diversity acme and abundance in the Ordovician
  
• Highlights the nine families of orthides which were lost at the end of the Ordovician, but discusses how...

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This introduction to the diverse yet little known world of spiders is packed with concise, accurate information. With full-color pictures and readable text, this guide identifies representative species and describes:
Their characteristics and habits
Growth, courtship and enemies
Where they are found

Includes information on poisonous species and how to collect, preserve, and raise spiders.