Swollen Thorn Acacias Of Central America
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Latin American Insects and Entomology
| Author | : Charles Leonard Hogue |
| Publisher | : Univ of California Press |
| Total Pages | : 568 |
| Release | : 1993-01-01 |
| Genre | : Science |
| ISBN | : 9780520078499 |
00 This is the first comprehensive guide to insect life in a part of the world known for its abundant, and endangered, life forms. Charles Hogue's scholarship embraces vast geographical territory--Mexico, Central and South America, and the Caribbean. Color photographs and first-rate drawings illustrate the clearly written text. This is the first comprehensive guide to insect life in a part of the world known for its abundant, and endangered, life forms. Charles Hogue's scholarship embraces vast geographical territory--Mexico, Central and South America, and the Caribbean. Color photographs and first-rate drawings illustrate the clearly written text.
Invasion of Woody Legumes
| Author | : O.W. Van Auken |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 71 |
| Release | : 2013-05-22 |
| Genre | : Science |
| ISBN | : 1461471990 |
Includes our current knowledge of the invasion or encroachment and cause of population growth and spread of some dry land, arid zone woody legumes. Community structure, population growth, and competition of these woody legumes will also be examined. These species and ecosystems are both extensive and dynamic. They occur worldwide, but mainly in the arid zones of the tropics and sub-tropics. The cause of the growth and spread of these species and communities has long been claimed to be caused by distal factors rather than proximal ones. However, these species appear to be influenced and perhaps controlled by anthropogenic factors, specifically grazing and fire or lack of fire. Their overall worldwide distribution has probably changed little in the recent past, but their populations have expanded into grasslands and their density has increased in many places. Some associated communities have shown dramatic changes in response to recent large-scale droughts and the loss of most of the dominant overstory species. However, changes in the woody legume communities and their species are generally unknown.
The Coevolutionary Process
| Author | : John N. Thompson |
| Publisher | : University of Chicago Press |
| Total Pages | : 388 |
| Release | : 2009-04-24 |
| Genre | : Science |
| ISBN | : 0226797678 |
Traditional ecological approaches to species evolution have frequently studied too few species, relatively small areas, and relatively short time spans. In The Coevolutionary Process, John N. Thompson advances a new conceptual approach to the evolution of species interactions—the geographic mosaic theory of coevolution. Thompson demonstrates how an integrated study of life histories, genetics, and the geographic structure of populations yields a broader understanding of coevolution, or the development of reciprocal adaptations and specializations in interdependent species. Using examples of species interactions from an enormous range of taxa, Thompson examines how and when extreme specialization evolves in interdependent species and how geographic differences in specialization, adaptation, and the outcomes of interactions shape coevolution. Through the geographic mosaic theory, Thompson bridges the gap between the study of specialization and coevolution in local communities and the study of broader patterns seen in comparisons of the phylogenies of interacting species.
The Essential Naturalist
| Author | : Michael H. Graham |
| Publisher | : University of Chicago Press |
| Total Pages | : 550 |
| Release | : 2011-04-15 |
| Genre | : Science |
| ISBN | : 0226307182 |
Like nearly every area of scholarly inquiry today, the biological sciences are broken into increasingly narrow fields and subfields, its practitioners divided into ecologists, evolutionary biologists, taxonomists, paleontologists, and much more. But all these splintered pieces have their origins in the larger field of natural history—and in this era where climate change and relentless population growth are irrevocably altering the world around us, perhaps it’s time to step back and take a new, fresh look at the larger picture. The Essential Naturalist offers exactly that: a wide-ranging, eclectic collection of writings from more than eight centuries of observations of the natural world, from Leeuwenhoek to E. O. Wilson, from von Humboldt to Rachel Carson. Featuring commentaries by practicing scientists that offer personal accounts of the importance of the long tradition of natural history writing to their current research, the volume serves simultaneously as an overview of the field’s long history and as an inspirational starting point for new explorations, for trained scientists and amateur enthusiasts alike.
Monthly Catalog of United States Government Publications, Cumulative Index
| Author | : United States. Superintendent of Documents |
| Publisher | : |
| Total Pages | : 1466 |
| Release | : 1976 |
| Genre | : United States |
| ISBN | : |
Ant-Plant Interactions
| Author | : Paulo S. Oliveira |
| Publisher | : Cambridge University Press |
| Total Pages | : 461 |
| Release | : 2017-08-17 |
| Genre | : Nature |
| ISBN | : 110715975X |
The first volume devoted to anthropogenic effects on interactions between ants and flowering plants, considered major parts of terrestrial ecosystems.
Biological Nitrogen Fixation
| Author | : Frans J. de Bruijn |
| Publisher | : John Wiley & Sons |
| Total Pages | : 2250 |
| Release | : 2015-06-12 |
| Genre | : Science |
| ISBN | : 1118637097 |
Nitrogen is arguably the most important nutrient required by plants. However, the availability of nitrogen is limited in many soils and although the earth's atmosphere consists of 78.1% nitrogen gas (N2) plants are unable to use this form of nitrogen. To compensate , modern agriculture has been highly reliant on industrial nitrogen fertilizers to achieve maximum crop productivity. However, a great deal of fossil fuel is required for the production and delivery of nitrogen fertilizer. Moreover carbon dioxide (CO2) which is released during fossil fuel combustion contributes to the greenhouse effect and run off of nitrate leads to eutrophication of the waterways. Biological nitrogen fixation is an alternative to nitrogen fertilizer. It is carried out by prokaryotes using an enzyme complex called nitrogenase and results in atmospheric N2 being reduced into a form of nitrogen diazotrophic organisms and plants are able to use (ammonia). It is this process and its major players which will be discussed in this book. Biological Nitrogen Fixation is a comprehensive two volume work bringing together both review and original research articles on key topics in nitrogen fixation. Chapters across both volumes emphasize molecular techniques and advanced biochemical analysis approaches applicable to various aspects of biological nitrogen fixation. Volume 1 explores the chemistry and biochemistry of nitrogenases, nif gene regulation, the taxonomy, evolution, and genomics of nitrogen fixing organisms, as well as their physiology and metabolism. Volume 2 covers the symbiotic interaction of nitrogen fixing organisms with their host plants, including nodulation and symbiotic nitrogen fixation, plant and microbial "omics", cyanobacteria, diazotrophs and non-legumes, field studies and inoculum preparation, as well as nitrogen fixation and cereals. Covering the full breadth of current nitrogen fixation research and expanding it towards future advances in the field, Biological Nitrogen Fixation will be a one-stop reference for microbial ecologists and environmental microbiologists as well as plant and agricultural researchers working on crop sustainability.
