Ecological relations

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  • My goal in this book is to introduce the reader to the evidence, both historical and contemporary, for how the reciprocal interactions between people and nature have developed, the urgency for action now to prevent truly disastrous consequences, and to make suggestions as to how we might go about doing so. While the book does not follow the usual organization for an introduction to human ecology, cultural ecology, or ecological anthropology text, the book covers much of this material in what I hope is a more engaging organization....

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  • This textbook covers Plant Ecology from the molecular to the global level.

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  • Our goal in writing this book was to describe why weeds occur where they do. We have made no attempt to discuss their management and control: there are excellent texts available for that. Rather, we think that students should understand how and why weeds fit into their environment. This text presents ecological principles as they relate to weeds. Ecology is central to our understanding of how and why weeds invade and yet there are few books that make this connection. That is the niche we hope to fill.

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  • Based on logistic regression, we developed habitat models for the burnet moth Zygaena carniolica and the nymphalid butterfly Coenonympha arcania in Northern Bavaria, Germany. The relation between adult occurrence and habitat parameters - including the influence of the landscape context - was analyzed on 118 sites.

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  • Why consider the role of place in Milton’s poetry? A few years ago, while attending a seminar conducted by Diane McColley on the relation of nature to culture in the literary history of the natural world, I found myself returning again and again to the same question: what happens when culture is privileged over place? No mere academic question, as the last acres of the place my family had farmed for generations had given way to bulldozers the year before, I found myself feeling that I had somehow lost my place in the world....

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  • In December 2009 a large international conference on climate change was held in Copenhagen, Denmark. Among many people around the world, plans for that conference triggered strong hopes, especially the expectation that the lopsided and exploitative relation between humanity and nature would be corrected or at least ameliorated. As we know in retrospect, these hopes were not fulfi lled—although the demand for corrective measures is steadily gaining in urgency.

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  • IN RECENT YEARS it has become impossible to talk about man's relation to nature without referring to "ecology." This peculiar field of study has been suddenly called on, in a manner unusual even in our scienceimpressed age, to playa central intellectual role. Such leading scientists in this area as Rachel Carson, Barry Commoner, Eugene Odum, Paul Ehrlich, and others, have become our new delphic voices, writing bestsellers, appearing in the media, shaping government policies, even serving as moral touchstones.

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  • In the decade that has passed since the first edition of this book, the global environment has changed rapidly. Even the most steadfast ‘‘deny-ers’’ have come to accept that atmospheric CO2 enrichment and global warming pose serious challenges to life on Earth.

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  • Human activities may seriously affect the quality of aquatic ecosystems. Pathogen organisms, nutrients, heavy metals, toxic elements, pesticides, pharmaceuticals and various other organic micropollutants enter to aquatic environment through a range of point and diffuse sources. The presence of these compounds has adverse impacts on aquatic biota. It is well recognised that the distribution and the abundance of various species in aquatic systems are directly related to the water quality and hydrological conditions....

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  • Agroecology encompasses not only aspects of ecology and agriculture, but the ecology of sustainable food production systems, including the technology and related societal and cultural values (e.g. Gliessman 1998; Altieri and Hecht 1990; Altieri 1989, 1987, 1983) to better promote healthy and functional environments for a sustainable quality of life (see also Castillo et al. 2005). To provide effective com munication regarding the status and advances in this burgeoning field, connections must be established with many disciplines including (but not limited to)...

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  • 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.

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  • This book offers an interdisciplinary view of the biophysical issues related to climate change. Climate change is a phenomenon by which the long-term averages of weather events (i.e. temperature, precipitation, wind speed, etc.) that define the climate of a region are not constant but change over time. There have been a series of past periods of climatic change, registered in historical or paleoecological records.

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  • The prevailing low food production in sub-Saharan Africa is an issue of great concern especially since Africa south of the Sahara is the only remaining region of the world where per capita food production has remained stagnant. This chapter reviews long-term experiments in Africa in the context of shifting paradigms related to tropical soil fertility management from fi rst external input paradigm right through to the current Integrated Soil Fertility Management (ISFM) approach, which is a culmination of the participatory methods developed along the paradigm shift.

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  • 3 Ecosystems have ontic openness 3.1 INTRODUCTION This chapter’s title may mean little to many persons, yet the essence may be understood fairly easily on an intuitive basis. The adjective “ontic”, which hardly appears in any dictionary, clearly relates to the term ontology, which is used in philosophy in its widest sense

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  • .United Nations University Press is the publishing arm of United Nations University. UNU Press publishes scholarly and policy-oriented books and periodicals on the issues facing the United Nations and its people and member states, with particular emphasis upon international, regional, and trans-boundary policies.

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  • Large lakes are important because of their size and ecological distinctiveness, as well as their economic and cultural value. Optimal management of them requires a proper understanding of anthropogenic impacts, both on the lake ecosystems, as such and on the services they provide for society. The specific structural and functional properties of large lakes, e.g. morphology, hydrography, biogeochemical cycles, and food-web structure, are all directly related to their size.

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  • P a r t Tw o THE SCIENCE OF ECOLOGY In his essay “Must We Shoot Deer to Save Nature?” conservation biologist Jared Diamond poses a difficult but common dilemma by relating the story of Fontenelle Forest, a 1,300-acre nature reserve near Omaha, Nebraska.

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  • Environmental pollution has played a critical role in human lives since the early history of the nomadic tribes. During the last millennium, industrial revolution, increased population growth and urbanization have been the major determinants in shaping our environmental quality. Initially primary air pollutants such as sulfur dioxide and particulate matter were of concern. For example, the killer fog of London in 1952 resulted in significant numbers of human fatality leading to major air pollution control measures....

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  • This chapter proceeds from an ecological framework, which recognizes that multiple aspects of an adolescent's life may affect their reproductive health experiences, including a teen's family environment, their individual attitudes and behaviors, and peer attitudes and behaviors. In addition, the characteristics of a teen's community, including school context, neighborhood environment, and broader policies may affect reproductive health behaviors.

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  • Grace period after the expiry of the 10 - year storage limit W e recommend amending clause 5 of the bill by substituting new text to repeal and replace section 10 of the Act. W e also recommend the adoption of the related new purpose clause 4(aa). These amend- ments would provide a grace period of six months upon the expiry of the 10 - year storage limit and any extensions to it. The grace period would lessen the burden of disposal management for fertility clin- ics.

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