Conceptual ecology

Xem 1-17 trên 17 kết quả Conceptual ecology
  • In this edited volume, global experts in ecology and evolutionary biology explore how theories in ecology elucidate the processes of invasion, while also examining how specific invasions inform ecological theory. This reciprocal benefit is highlighted in a number of scales of organization: population, community and biogeographic. The text describes example invaders in all major groups of organisms and from a number of regions around the globe.

    pdf523p camchuong_1 11-12-2012 25 3   Download

  • Microbes produce an extraordinary array of microbial defense systems. These include broad-spectrum classical antibiotics, metabolic byproducts, such as the lactic acids produced by lactobacilli, lytic agents such as lysozymes, numerous types of protein exotoxins, and bacteriocins, which are loosely defined as biologically active protein moieties with a bacteriocidal mode of action.

    pdf154p phoebe75 01-02-2013 46 20   Download

  • It is intended that this book be suitable for a variety of engineers and ecologists, who may wish to gain an introduction to the rapidly growing field of ecological and environmental modelling. An understanding of the fundamentals of environmental problems and ecology, as presented for instance in the textbook Principles of Environmental Science and Technology is assumed. Furthermore, it is assumed that the reader has either a fundamental knowledge of differential equations and matrix calculations or has read the Appendix, which gives a brief introduction to these topics....

    pdf543p phoebe75 01-02-2013 30 16   Download

  • Human activities are affecting the global environment in myriad ways, with numerous direct and indirect effects on ecosystems. The climate and atmospheric composition of Earth are changing rapidly. Humans have directly modified half of the ice-free terrestrial surface and use 40% of terrestrial production. Our actions are causing the sixth major extinction event in the history of life on Earth and are radically modifying the interactions among forests, fields, streams, and oceans.

    pdf455p phoebe75 01-02-2013 26 8   Download

  • The natural world is a place I escape to: a place that goes about its business regardless of everyday individual human concerns. It is a place of beauty, change, diversity, and endless fa scination. Like many who share these sentiments, I was never content to just be in nature: I had to watch, name, learn, and understand. This book is about understanding how and why the natural world works, thereby to appreciate it more for what it really is. For me, that is one of the things that make life ‘more than just living’....

    pdf220p phoebe75 01-02-2013 17 5   Download

  • When we eventually look back at the intellectual shibboleths of the high capitalist period—say the last three centuries—few ingrained assumptions will look so wrongheaded or so globally destructive as the common-sense separation of society and nature. Historically and geographically, most societies have avoided such a stark presumption as hubristic folly, but from physicists to sociologists, physicians to poets, the brains of the ascendant capitalist “west” not only embraced but made a virtue of society’s separation from nature (and vice versa).

    pdf282p camchuong_1 11-12-2012 21 2   Download

  • The concept of forest sustainability dates from centuries ago, although the understanding of sustainable forest management (SFM) as an instrument that harmonizes ecological and socio-economic concerns is relatively new. The change in perspective occurred at the beginning of the 1990s in response to an increased awareness of the deterioration of the environment, in particular of the alarming loss of forest resources. The main and most striking cause of this deterioration is the deforestation occurring in some areas of the world.

    pdf269p baobinh1311 25-09-2012 35 15   Download

  • Although farmers do not receive any support from society for the contribution of the dehesa to welfare of society and the environment, they still conserve, prune and reforest oaks to maintain fruit production to feed and fatten Iberian pigs during the montanera or pannage. The ability of the Iberian pig breed to feed on acorns is a key feature in maintaining the dehesa.

    pdf328p conquynho32 14-09-2012 25 7   Download

  • Benthic algae have been intensively studied, especially over the past two decades. This intensity has been stimulated by the widespread recognition that benthic algae are ideal indicators of the health of many, if not most, aquatic ecosystems. With this book we hope to synthesize this vital area of research and share its essence with our colleagues and students. We started with an outline of the myriad abiotic and biotic determinants of benthic algal ecology.

    pdf781p phoebe75 01-02-2013 21 5   Download

  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Laudation to Prof. Dr. Hans-Toni Ratte–towards conceptual, theory-based ecological science and its transfer to the applied field of ecotoxicology

    pdf8p dauphong11 06-02-2012 15 3   Download

  • The impetus to write a book on the riverine ecosystem synthesis emerged at the 2005 annual meeting of the North American Benthological Society in New Orleans, and barely 2 months later, we signed a contract with Academic Press. This book was to be an expansion of a manuscript that was In Press at that time in River Research and Applications (Thorp et al., 2006).

    pdf233p phoebe75 01-02-2013 10 3   Download

  • Available data suggest that, in addition to the obvious catches of fish for human needs, the by- catches in the world’s fisheries have a significant ecological impact and cause mortality amongst fin-fish (particularly the juveniles of commercial fish species), as well as amongst benthic invertebrates, marine mammals, turtles and birds.

    pdf0p tieuyeuquai456 08-10-2012 14 2   Download

  • We wrote this book to share with other ecologists what we have learned about the structure and use of theory and its relationship to the myriad activities that constitute modern science. Our own quest was motivated by the sometimes unclear way in which the term “theory” is used in both scientifi c publications and informal discussions. We needed to fi nd out what theory was and how it was built. We also wanted to evaluate the varied and often contradictory claims made about what constitutes proper scientifi c practice.

    pdf244p camchuong_1 11-12-2012 14 1   Download

  • This is probably the first study that has used resilience, the adaptive cycle and panarchy as a major part of the conceptual foundation for the work. Resilience (as used here) has been explored in the literature for about 30 years, the adaptive cycle originated about 18 years ago and both have been integrated within the panarchy concept for only a few years.

    pdf267p huetay_1 28-02-2013 31 13   Download

  • This book discusses interdisciplinary views of understanding and conceptualizing the changing global economy, by emphasizing a specific spatial perspective that mirrors unequal economic development, and selective specialization and growth processes.

    pdf315p baobinh1311 25-09-2012 33 10   Download

  • Due to the growing importance of forest goods and services an increasing amount of information is being collected on the ecological and also on the socio-economic value of goods and services provided by forests. However, much of this information is collected and presented at incompatible scales or it has been classified differently. In order to make comparative ecological or economic analysis possible, standardized frameworks for assessing the importance of forest goods and services are needed.

    pdf35p dangsuynghi 15-03-2013 17 6   Download

  • The ARIES methodology is based on explicit conceptualizations (ontologies: Villa, Athanasiadis et al. 2009) that lay out first of all a novel vision of ES, based on the breakdown into individual benefits, each of which is modeled independently, then linked to the others. Domain ontologies in ARIES result from a large-scale expert consensus. Artificial intelligence techniques (machine reasoning, pattern recognition) examine source data and extract from the ontologies models that best represent the situation at hand.

    pdf8p connhobinh 07-12-2012 18 3   Download

Đồng bộ tài khoản