Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Urbanization is one of the main drivers of global change. It often takes place in areas with high biodiversity, threatening species worldwide. To protect biodiversity not only outside but also right within urban areas, knowledge about the effects of urban land use on species assemblages is essential. Sonja Knapp compares several aspects of plant biodiversity between urban and rural areas in Germany. Using extensive databases and modern statistical methods, she goes beyond species richness: Urban areas are rich in species but plant species in urban areas are closer related to each other than plant species in rural areas, respectively. The urban environment, characterized by high temperatures and frequent disturbances, changes the functional composition of the flora. It promotes e.g. short-lived species with leaves adapted to drought but threatens insect-pollinated or wind-dispersed species. The author claims that the protection of biodiversity should not only focus on species richness but also on functional and phylogenetic diversity, also right within urban areas, to preserve a flora with a high potential for adaptation to changing global conditions.

Biotechnology --- biotechnologie --- insecten

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This book presents completely novel, yet unpublished findings on aphid population dynamics and ecology in the context of recent environmental changes and closely related issues. It can be used as complementary text in any course on population dynamics and ecology of crop pests at undergraduate or graduate levels. The book is intended mainly for graduate students, researchers in crop science, crop protection, agricultural advisors and managers, but it will surely attract attention of many other people interested in insect pests, their biological control and ecology.

Insects. Springtails --- insecten

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

The prevalence of obesity has dramatically increased in western and westernized societies, making the disease the second leading cause of unnecessary deaths in the US. Obesity results from imbalanced metabolic regulation leading to excessive lipid storage. As important novel entities in metabolic regulation, taste receptors and their cells are critical elements that adapt the gustatory system to metabolic signals and vice versa. The role of taste receptor genes in gastrointestinal tissues, as well as their dynamic regulation in gustatory and non-gustatory tissues in response to metabolic cues, has become the focus of an entirely new and rapidly developing research field with impacts on fuel sensing, metabolic control, and ingestive behavior. This book reflects the recent scientific progress in the field of fuel sensing in the mouth, GI tract, and brain and examines the olfactory bulb as a potential metabolic sensor and the brain-gut endocrine axis. It also touches on relevant novel molecular and cellular mechanisms regulating lipid storage and metabolism and covers the identification and functional characterization of obesity genes. Lastly, it illustrates the use of insect models to study relevant problems of energy homeostasis.

Histology. Cytology --- cytologie --- histologie --- insecten

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

The prevalence of obesity has dramatically increased in western and westernized societies, making the disease the second leading cause of unnecessary deaths in the US. Obesity results from imbalanced metabolic regulation leading to excessive lipid storage. As important novel entities in metabolic regulation, taste receptors and their cells are critical elements that adapt the gustatory system to metabolic signals and vice versa. The role of taste receptor genes in gastrointestinal tissues, as well as their dynamic regulation in gustatory and non-gustatory tissues in response to metabolic cues, has become the focus of an entirely new and rapidly developing research field with impacts on fuel sensing, metabolic control, and ingestive behavior. This book reflects the recent scientific progress in the field of fuel sensing in the mouth, GI tract, and brain and examines the olfactory bulb as a potential metabolic sensor and the brain-gut endocrine axis. It also touches on relevant novel molecular and cellular mechanisms regulating lipid storage and metabolism and covers the identification and functional characterization of obesity genes. Lastly, it illustrates the use of insect models to study relevant problems of energy homeostasis.

Histology. Cytology --- cytologie --- histologie --- insecten

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Despite the long association of organohalogen compounds with human activities, nature is the producer of nearly 5,000 halogen-containing chemicals. Once dismissed as accidents of nature or isolation artifacts, organohalogen compounds represent an important and ever growing class of natural products, in many cases exhibiting exceptional biological activity. Since the last comprehensive review in 1996 (Vol. 68, this series), there have been discovered an additional 2,500 organochlorine, organobromine, and other organohalogen compounds. These natural organohalogens are biosynthesized by bacteria, fungi, lichen, plants, marine organisms of all types, insects, and higher animals including humans. These compounds are also formed abiogenically, as in volcanoes, forest fires, and other geothermal events.In some instances, natural organohalogens are precisely the same chemicals that man synthesizes for industrial use, and some of the quantities of these natural chemicals far exceed the quantities emitted by man.

Organic chemistry --- Pharmacology. Therapy --- organische chemie --- farmacologie --- insecten