Download or read online books in PDF, EPUB and Mobi Format. Click Download or Read Online button to get book now. This site is like a library, Use search box in the widget to get ebook that you want.

The Phytochemical Landscape

The Phytochemical Landscape Author Mark D. Hunter
ISBN-10 9781400881208
Release 2016-08-09
Pages 376
Download Link Click Here

The dazzling variation in plant chemistry is a primary mediator of trophic interactions, including herbivory, predation, parasitism, and disease. At the same time, such interactions feed back to influence spatial and temporal variation in the chemistry of plants. In this book, Mark Hunter provides a novel approach to linking the trophic interactions of organisms with the cycling of nutrients in ecosystems. Hunter introduces the concept of the "phytochemical landscape"—the shifting spatial and temporal mosaic of plant chemistry that serves as the nexus between trophic interactions and nutrient dynamics. He shows how plant chemistry is both a cause and consequence of trophic interactions, and how it also mediates ecosystem processes such as nutrient cycling. Nutrients and organic molecules in plant tissues affect decomposition rates and the fluxes of elements such as carbon, nitrogen, and phosphorus. The availability of these same nutrients influences the chemistry of cells and tissues that plants produce. In combination, these feedback routes generate pathways by which trophic interactions influence nutrient dynamics and vice versa, mediated through plant chemistry. Hunter provides evidence from terrestrial and aquatic systems for each of these pathways, and describes how a focus on the phytochemical landscape enables us to better understand and manage the ecosystems in which we live. Essential reading for students and researchers alike, this book offers an integrated approach to population-, community-, and ecosystem-level ecological processes.



Metacommunity Ecology

Metacommunity Ecology Author Mathew A. Leibold
ISBN-10 9781400889068
Release 2017-12-18
Pages 504
Download Link Click Here

Metacommunity ecology links smaller-scale processes that have been the provenance of population and community ecology—such as birth-death processes, species interactions, selection, and stochasticity—with larger-scale issues such as dispersal and habitat heterogeneity. Until now, the field has focused on evaluating the relative importance of distinct processes, with niche-based environmental sorting on one side and neutral-based ecological drift and dispersal limitation on the other. This book moves beyond these artificial categorizations, showing how environmental sorting, dispersal, ecological drift, and other processes influence metacommunity structure simultaneously. Mathew Leibold and Jonathan Chase argue that the relative importance of these processes depends on the characteristics of the organisms, the strengths and types of their interactions, the degree of habitat heterogeneity, the rates of dispersal, and the scale at which the system is observed. Using this synthetic perspective, they explore metacommunity patterns in time and space, including patterns of coexistence, distribution, and diversity. Leibold and Chase demonstrate how these processes and patterns are altered by micro- and macroevolution, traits and phylogenetic relationships, and food web interactions. They then use this scale-explicit perspective to illustrate how metacommunity processes are essential for understanding macroecological and biogeographical patterns as well as ecosystem-level processes. Moving seamlessly across scales and subdisciplines, Metacommunity Ecology is an invaluable reference, one that offers a more integrated approach to ecological patterns and processes.



The Theory of Ecological Communities MPB 57

The Theory of Ecological Communities  MPB 57 Author Mark Vellend
ISBN-10 9781400883790
Release 2016-08-23
Pages 248
Download Link Click Here

A plethora of different theories, models, and concepts make up the field of community ecology. Amid this vast body of work, is it possible to build one general theory of ecological communities? What other scientific areas might serve as a guiding framework? As it turns out, the core focus of community ecology—understanding patterns of diversity and composition of biological variants across space and time—is shared by evolutionary biology and its very coherent conceptual framework, population genetics theory. The Theory of Ecological Communities takes this as a starting point to pull together community ecology's various perspectives into a more unified whole. Mark Vellend builds a theory of ecological communities based on four overarching processes: selection among species, drift, dispersal, and speciation. These are analogues of the four central processes in population genetics theory—selection within species, drift, gene flow, and mutation—and together they subsume almost all of the many dozens of more specific models built to describe the dynamics of communities of interacting species. The result is a theory that allows the effects of many low-level processes, such as competition, facilitation, predation, disturbance, stress, succession, colonization, and local extinction to be understood as the underpinnings of high-level processes with widely applicable consequences for ecological communities. Reframing the numerous existing ideas in community ecology, The Theory of Ecological Communities provides a new way for thinking about biological composition and diversity.



Advances in Mathematical Chemistry and Applications

Advances in Mathematical Chemistry and Applications Author Subhash C. Basak
ISBN-10 9781681080529
Release 2016-02-11
Pages 354
Download Link Click Here

Advances in Mathematical Chemistry and Applications highlights the recent progress in the emerging discipline of discrete mathematical chemistry. Editors Subhash C. Basak, Guillermo Restrepo, and Jose Luis Villaveces have brought together 27 chapters written by 68 internationally renowned experts in these two volumes. Each volume comprises a wise integration of mathematical and chemical concepts and covers numerous applications in the field of drug discovery, bioinformatics, chemoinformatics, computational biology, mathematical proteomics, and ecotoxicology. Volume 2 explores deeper the topics introduced in Volume 1, with numerous additional topics such as topological approaches for classifying fullerene isomers; chemical reaction networks; discrimination of small molecules using topological molecular descriptors; GRANCH methods for the mathematical characterization of DNA, RNA and protein sequences; linear regression methods and Bayesian techniques; in silico toxicity prediction methods; drug design; integration of bioinformatics and systems biology, molecular docking, and molecular dynamics; metalloenzyme models; protein folding models; molecular periodicity; generalized topologies and their applications; and many more. Brings together both the theoretical and practical aspects of the fundamental concepts of mathematical chemistry Covers applications in diverse areas of physics, chemistry, drug discovery, predictive toxicology, systems biology, chemoinformatics, and bioinformatics About half of the book focuses primarily on current work, new applications, and emerging approaches for the mathematical characterization of essential aspects of molecular structure, while the other half describes applications of structural approach to new drug discovery, virtual screening, protein folding, predictive toxicology, DNA structure, and systems biology



Ant Plant Interactions

Ant Plant Interactions Author Paulo S. Oliveira
ISBN-10 9781107159754
Release 2017-08-31
Pages 470
Download Link Click Here

Ants are probably the most dominant insect family on earth, and flowering plants have been the dominant plant group on land for more than 100 million years. In recent decades, human activities have degraded natural environments with unparalleled speed and scale, making it increasingly apparent that interspecific interactions vary not only under different ecological conditions and across habitats, but also according to anthropogenic global change. This is the first volume entirely devoted to the anthropogenic effects on the interactions between these two major components of terrestrial ecosystems. A first-rate team of contributors report their research from a variety of temperate and tropical ecosystems worldwide, including South, Central and North America, Africa, Japan, Polynesia, Indonesia and Australia. It provides an in-depth summary of the current understanding for researchers already acquainted with insect-plant interactions, yet is written at a level to offer a window into the ecology of ant-plant interactions for the mostly uninitiated international scientific community.



Communication Centers

Communication Centers Author Kathleen J. Turner
ISBN-10 9780739190999
Release 2015-01-12
Pages 244
Download Link Click Here

Communication Centers: A Theory-Based Guide to Training and Management addresses what communication centers are and why they are valuable, examines their rich rhetorical roots, and offers advice to faculty who are asked to develop a communication center. Directors of established centers and peer tutors will also find valuable information.



Biodiversity

Biodiversity Author Takuya Abe
ISBN-10 9781461219064
Release 2012-12-06
Pages 294
Download Link Click Here

Despite acknowledgment that loss of living diversity is an international biological crisis, the ecological causes and consequences of extinction have not yet been widely addressed. In honor of Edward O. Wilson, winner of the 1993 International Prize for Biology, an international group of distinguished biologists bring ecological, evolutionary, and management perspectives to the issue of biodiversity. The roles of ecosystem processes, community structure and population dynamics are considered in this book. The goal, as Wilson writes in his introduction, is "to assemble concepts that unite the disciplines of systematics and ecology, and in so doing to create a sound scientific basis for the future management of biodiversity."



Seaweed Ecology and Physiology

Seaweed Ecology and Physiology Author Catriona L. Hurd
ISBN-10 9780521145954
Release 2014-07-17
Pages 562
Download Link Click Here

A synthesis of concepts and examples of how physiological processes influence seaweed communities worldwide, authored by experts in the field.



Insect Plant Biology

Insect Plant Biology Author Louis M. Schoonhoven
ISBN-10 9780198525943
Release 2005-12-01
Pages 421
Download Link Click Here

"This multidisciplinary approach will appeal to students in agricultural entomology, plant sciences, ecology, and indeed anyone interested in the principles underlying the relationships between the two largest groups of organisms on earth: plants and insects."--BOOK JACKET.



Nutrition for the Primary Care Provider

Nutrition for the Primary Care Provider Author D.M. Bier
ISBN-10 9783318026672
Release 2014-11-18
Pages 222
Download Link Click Here

Nutrition is an integral part of the prevention and management of the most prevalent conditions faced by today's primary care providers. This book is aimed at physicians around the world who treat patients from all walks of life. The first section is devoted to the basic principles of nutrition, covering the fundamentals of body composition, energy balance, and appetite, as well as the importance of the different macro- and micronutrients. The following section builds on the principles of the first by focusing on the special needs for specific circumstances, including pregnancy, exercise, food allergies and religion. The third part provides an overview of our latest understanding of various disease states and how they are influenced by nutrition. The final part on Food Policy takes a bird's eye view, offering perspectives on global sustainability, the rapidly changing face of malnutrition and the role played by the food industry in consumer health. This book is a practical reference source that will guide physicians on how to use nutrition as a tool to prevent and cure disease.



Biological Diversity and Function in Soils

Biological Diversity and Function in Soils Author Richard Bardgett
ISBN-10 0521609879
Release 2005-09-22
Pages 411
Download Link Click Here

The dynamic nature of current research into soil biodiversity is reflected in this excellent volume.



Behaviour and Ecology of Spiders

Behaviour and Ecology of Spiders Author Carmen Viera
ISBN-10 9783319657172
Release 2017-11-02
Pages 437
Download Link Click Here

Within the last few decades, arachnology in the Neotropical region has experienced a great development filling the knowledge gap in one of the most diverse regions of the world. Nevertheless, large geographical areas remain poorly sampled, especially within the Amazon, and new genera and species have been continuously discovered, even in urban areas. In congruence with the recent improvements in research, several aspects of the ecology, behaviour and natural history of spiders, such as interactions with other predators and parasitoids, social interactions, dispersal patterns, habitat requirements, mating behaviors, among others, are being carefully investigated. These recent contributions incorporate substantial information on the preexisting knowledge on these subjects every year. Our main objective with this book is to present a summary on these new researches and on the currently knowledge on the main subjects involved in the general theme, emphasizing the contribution of the rich fauna of the Neotropical region to the research of behaviour and ecology of the spiders.



Root Physiology from Gene to Function

Root Physiology  from Gene to Function Author Hans Lambers
ISBN-10 9781402040993
Release 2006-02-03
Pages 270
Download Link Click Here

In the last decade, enormous progress has been made on the physiology of plant roots, including on a wide range of molecular aspects. Much of that progress has been captured in the chapters of this book. Breakthroughs have been made possible through integration of molecular and whole-plant aspects. The classical boundaries between physiology, biochemistry and molecular biology have vanished. There has been a strong focus on a limited number of model species, including Arabidopsis thaliana. That focus has allowed greater insight into the significance of specific genes for plant development and functioning. However, many species are very different from A. thaliana, in that they are mycorrhizal, develop a symbiosis with N2-fixing microsymbionts, or have other specialised root structures. Also, some have a much greater capacity to resist extreme environments, such as soil acidity, salinity, flooding or heavy-metal toxicities, due to specific adaptations. Research on species other than A. thaliana is therefore pivotal, to develop new knowledge in plant sciences in a comprehensive manner. This fundamental new knowledge can be the basis for important applications in, e.g., agriculture and plant conservation. Although significant progress has been made, much remains to be learnt. It is envisaged that discoveries made in the recent past will likely lead to major breakthroughs in the next decade.



Terrestrial Photosynthesis in a Changing Environment

Terrestrial Photosynthesis in a Changing Environment Author Jaume Flexas
ISBN-10 9780521899413
Release 2012-07-19
Pages 728
Download Link Click Here

An integrated guide to photosynthesis in an environmentally dynamic context, covering all aspects from basic concepts to methodologies.



Multitrophic Level Interactions

Multitrophic Level Interactions Author Teja Tscharntke
ISBN-10 0521791103
Release 2002-03-21
Pages 284
Download Link Click Here

The multitrophic level approach to ecology addresses the complexity of food webs much more realistically than the traditional focus on simple systems and interactions. Only in the last twenty years have ecologists become interested in the nature of more complex systems including tritrophic interactions between plants, herbivores, and natural enemies. These interactions are explored in this exciting new volume by expert researchers from a variety of ecological fields. This book provides a much-needed synthesis of multitrophic level interactions and serves as a guide for future research for ecologists of all descriptions.



New Strategies in Locust Control

New Strategies in Locust Control Author Stephan Krall
ISBN-10 9783034892025
Release 2012-12-06
Pages 522
Download Link Click Here

In the late eighties large-scale control operations were carried out to control a major desert locust upsurge in Africa. For the first time since the banning of organochlorine pesticides these operations relied mainly on non-persistent pesticides such as organophosphates and pyrethroids. The amount of pesticides sprayed and the area covered were probably the highest in the history of locust control and raised criticism with respect to efficacy, economic viability and environmental impact. As a consequence, applied research into the problem was intensified, both at the national and the international level, with the goal of finding new and environmentally sound approaches and solutions to locust and grasshopper control. Emphasis was laid on developing new control agents and techniques.



Biology of Earthworms

Biology of Earthworms Author Ayten Karaca
ISBN-10 3642146368
Release 2010-11-09
Pages 316
Download Link Click Here

Earthworms, which belong to the order Oligochaeta, comprise roughly 3,000 species grouped into five families. Earthworms have been called ‘ecosystem engineers’; much like human engineers, they change the structure of their environments. Earthworms are very versatile and are found in nearly all terrestrial ecosystems. They play an important role in forest and agricultural ecosystems. This Soil Biology volume describes the various facets of earthworms, such as their role in soil improvement, soil structure, and the biocontrol of soil-borne plant fungal diseases. Reviews discuss earthworms’ innate immune system, molecular markers to address various issues of earthworm ecology, earthworm population dynamics, and the influences of organic farming systems and tillage. Further topics include the characteristics of vermicompost, relationships between soil earthworms and enzymes, the role of spermathecae, copulatory behavior, and adjustment of the donated sperm volume.