In der Antike mythisch verklärt, später als Rohstoffquelle verbraucht, sind Wale und Delphine mittlerweile zu Publikumslieblingen und Symboltieren des Naturschutzes geworden.
Bivalve filter-feeding mollusks are important components of coastal ecosystems because they remove large quantities of suspended material from the water and excrete abundant amounts of reactive nutrients.
Advances in Comparative and Environmental Physiology helps biologists, physiologists, and biochemists keep track of the extensive literature in the field.
Described here are the origin and general trends in the development of fishing from the earliest times up to the present in various parts of the world.
Studies on the colon not only serve medical interest or clinical purposes, but are also a highly interesting subject of comparative physiology, from which we can learn much about the basic principles in physiology.
As a result of the molecular genetic analysis of development similar mechanisms for the regulation of gene expression are found in a wide range of organisms.
Harderian glands, first described by Jacob Harder in two species of deer in 1694, are large, intraorbital glands which, with but few exceptions, are found in all land vertebrates.
Presenting an analysis of the water relationships of the major groups of organisms: fungi, plants and animals, the text examines water stress at all levels of biological organization.
Summarizing research progress achieved in 32 areas of cell biology covered in this series, this volume places special emphasis on the following topics: recognition in parasitic and symbiotic systems - the molecular biology and genetics of susceptibility and resistance of plants and animals to pathogens, parasites and symbionts - the cell to cell recognition and differentiation - the most challenging problems in developmental biology of plants and animals - the plasticity in cell to cell communication which plays a major role in cell differentiation and function.
Investigations of the oxygen carriers range from the characterization of natural populations to measurements of tenths of nanometer distances between atoms.
Anticlastogens in Mammalian and Human Cells covers research on the protection of chromosomes from the action of chemical mutagens by use of natural and synthetic antimutagens, which, because of their specific action on clastogenic damage are called anticlastogens.
Advances in Compararative and Environmental Physiology helps biologists, physiologists, and biochemists keep track of the extensive literature in the field.
A wide variety of hormones, neurotransmitters and growth factors exert their cellular effects by reacting first with membrane receptors resulting in an increase of intracellular calcium and the cellular response.
Advances in Comparative and Environmental Physiology helps biologists, physiologists, and biochemists keep track of the extensive literature in the field.
Advances in Comparative and Environmental Physiology helps biologists, physiologists, and biochemists keep track of the extensive literature in the field.
Being both broad - perception and motor organization - andnarrow - just onegroup of animals - at the same time, thisbook presents a new unified framework for understandingperceptuomotor organization, stressing the importance of anecological perspective.
The new field of applied genetic research, genetic toxicology and mutation research investigates the muta- genicity and cancerogenicity of chemicals and other agents.
The new field of applied genetic research, genetic toxicology and mutation research investigates the mutagenicity and cancerogenicity of chemicals and other agents.
All relevant ecological aspects of plankton, especially seasonal changes in the species composition, the role of competition for limiting resources in species replacements, the role of parasitism, predation and competition in seasonal succession are treated in detail considering phytoplankton, zooplankton and bacteroplankton.
With the growing recognition during the last two centuries that the Earth has an immense age and processes over long periods of time have changed the morphology and composition of the Earth's crust, geologists have become increasingly interested in determination of absolute ages.
Ecophysiology of Desert Arthropods and Reptiles starts with a new classification of the world's deserts, based upon the type of precipitation and the effect on their faunas of arthropods and reptiles.
In July 1989 a symposium was held at the Physiology Department of the Georg August University, G6ttingen, on the physiological, biophysical, biochemical, and technical principles of the coding of chemical substances both in nervous systems and artificial devices.
Behavioural Mechanisms of Food Selection examines animals belonging to diverse trophic groups, from carnivores, herbivores, micro-algal grazers, to filter-feeders and detritus-feeders.
Population Biology of Passerine Birds is an up-to-date synthesis of the most recent developments in its field, especially in the framework of modern life history theories.
As indicated in the Preface, the contributions to this volume are based upon the papers presented at the symposium on Thermoreceptors and Temperature Regula- tion held in July 1988 at the Institute of Physiology of the University of Marburg (Federal Republic of Germany) to celebrate and commemorate the life and achievements of HERBERT HENSEL, who directed that Institute from 1955 until his death in 1983, and whose most notable and significant contributions to thermo- physiology were in the areas of the properties and characteristics of thermo sensors, mammalian thermoregulation more generally, and the psychophysiology of ther- mal sensation.
No matter what forests are used for, forest managers have to deal with interactions between individual trees and between trees and other forest organisms.
Evolution of Castes in Insects l BERNHARD RENSCH The evolution of organisms in the succession of generations has been primarilly achieved through the appearance of new hereditary variants with minor deviations along with the development of stable structures and functions.
