David Ehrenfeld is an American professor of biology at Rutgers University and is the author of over a dozen publications, including The Arrogance of Humanism (1978), Becoming Good Ancestors: How We Balance Nature, Community, and Technology (2009), and Swimming Lessons: Keeping Afloat in the Age of Technology (2002). He is often described as one of the forerunners of twentieth-century conservation biology. [1] Ehrenfeld's work primarily deals with the inter-related topics of biodiversity, conservation, and sustainability. He is also the founding editor of Conservation Biology , a peer-reviewed scientific journal that deals with conserving the biodiversity of Earth, and has written for various magazines and newspapers including The New York Times , the Los Angeles Times , and Harper's Magazine . [2]
Ehrenfeld attended Harvard University for both his undergraduate and medical school studies, where he received his MD in 1963. He later attended the University of Florida in 1967, where he earned a PhD in zoology. [3] As a professor at Rutgers, Ehrenfeld teaches both graduate and undergraduate courses in ecology.
Ehrenfeld is the father of four children and the grandfather of seven grandchildren. His wife, Joan Ehrenfeld, worked as an ecology professor at Rutgers University alongside David for 35 years. Like her husband, she served the scientific community in a variety of ways. She participated in National Science Foundation panels, reviewed articles for scholarly journals, and was appointed as a member of the Science Advisory Board of the United States Environmental Protection Agency. [3] AAAS fellow Joan Ehrenfeld, an expert on invasive species, wetlands ecology, and urban ecology, died at her home in Highland Park, New Jersey on June 25, 2011, after a year-long battle with acute leukemia.
Throughout his life, Ehrenfeld has written a number of books elaborating on the issues of social ecology and the ever-present dangers of technology. From 1970-1980, Ehrenfeld published Biological Conservation, Conserving Life on Earth, The Arrogance of Humanism, and The Chameleon Variant. [4] Amid the years from 1980-2009, he published the likes of Beginning Again: People and Nature in the New Millennium,Swimming Lessons: Keeping Afloat in the Age of Technology, and Becoming Good Ancestors: How We Balance Nature, Community, and Technology. The underlying themes in all of his literature are linked in some way or another and serve to portray Ehrenfeld's genuine concern for the progression of human society.
The central theme in this book revolves around the idea that biodiversity among species must be preserved in order to maintain a healthy balance in nature and society. Ehrenfeld offers many examples of how natural communities are jeopardized through the actions of humans. For instance, the actions of the United States Army Corps of engineers, which threatened ecosystems within the Oklawaha River valley in Florida, and the numerous problems associated with preserving Pacific Coast Redwood communities, are utilized as case-studies to elucidate the impact of human activity on the environment. [5] The case-studies are complemented with several discussions of how modern landscapes are changing due to human activities such as agriculture, public construction, and pollution. [6] With all of these implications in mind, Ehrenfeld explains why, as a result, extinction rates are higher than ever and that the "Sixth Great Extinction" is currently under way, which has created ecological animosity among local and global communities throughout the world. The ideas expressed by him in this book are similar to those exhibited by ecologists Barry Commoner and Jane Jacobs. [7]
Ehrenfeld states that the arrogance exhibited by today's society is attributed to humans' over-dependence on technology to solve environmental and social problems. He concludes that the intelligence of humans can not simply solve everything and that until humans accept this fact, society will not truly progress. Ehrenfeld utilizes a pessimistic tone in the course of this book in regards to these "arrogant" assumptions made by modern society. He states that, "We must live in our century and wait, enduring somehow the unavoidable sadness ... nothing is free of the taint of our arrogance. We have defiled everything, much of it forever, even the farthest jungles of the Amazon and the air above the mountains, even the everlasting sea which gave us birth." [8] Environmentalist David Orr accentuates the main points of this book when he states Ehrenfeld's belief that Americans lack the science of land health that Aldo Leopold described in the early twentieth century. [9] This book is widely regarded as one of Ehrenfeld's most influential works. [10]
Throughout this publication, a wide array of suggestions are offered to perpetuate a more sustainable life in the new millennium. Ehrenfeld urges people of society to embrace a more refined ecological awareness of advancing agricultural technology, carbon dioxide emissions, disappearing fauna, and global biodiversity. As described by philosopher Bryan Norton, "The lessons of Beginning Again are usually about the limits of general knowledge and the unlikelihood that expertise will solve the innumerable problems that arise within a society obsessed with information and centralized control." [11] In sum, the underlying message of this story outlines the dangers present in relying on technical expertise to solve the social and environmental problems of today.
Similar to the writing style of Becoming Good Ancestors: How we Balance Nature, Community, and Technology, the author employs a number of narratives to establish the main themes present throughout this novel. For example, in his chapter entitled "Rejecting Gifts," Ehrenfeld discusses how the values of modern society are steadily deteriorating through the "rejection" of the perennial gifts that Earth offers to humans such as economically viable resources. Ehrenfeld insists that, "The life of contemporary civilization is like the fairy tale of the three little pigs and the big bad wolf in reverse. Having started with a house of brick, we have moved, with great fanfare, to a house of straw; it is hard to concoct a happy ending for such a story." [12] All in all, the main objective of this book works to emphasize the relationship between technology and the environment while also outlining how corporate economics play an influential role in how the environment is shaped. [13] University
A volume pieced together with several anecdotes to portray the overshadowing effects of technology on modern ecological thought. Ehrenfeld goes on to delineate the limits of human capacity and how technology alone will not be able to solve the various environmental issues that society faces today. He draws upon specific examples of how technology will never replace natural energy sources like crude oil. The book as a whole focuses on the effects of modern society on nature and how negative patterns are reversible through the moral judgment and intelligence of humans to make changes that will positively impact the future. [14]
In his tenure, Ehrenfeld has procured a number of teaching awards. He was elected a fellow of the American Association for the Advancement of Science, was the recipient of the annual award of the Society for Conservation Biology in 1993, and was named the Barbara Munson Goff Rutgers School of Environmental and Biological Sciences Teacher of the Year in 2011. [4]
Ehrenfeld is widely regarded as one of the most prominent conservation biologists in the world. With more than forty years of teaching experience under his belt at Rutgers, he has come into contact with hundreds of students and colleagues. As a result, Ehrenfeld is warmly received throughout campus for his rapport with students and faculty. [4]
Many of his critics, such as sociologist Robert Bierstedt, argue that his literature contains a pessimistic connotation and that he speaks through sermons in his writings. [15] These critics claim that Ehrenfeld's literature presents a bleak future and tends to focus more on the negative aspects of society towards the environment. Yet, others insist that his work represents optimistic viewpoints in that it depicts the capacity of humans to reverse the forewarned implications of humans' environmental actions.
Apart from select book chapters, Ehrenfeld has written:
Edward Osborne Wilson, usually cited as E. O. Wilson, is an American biologist, naturalist, and writer. Wilson is an influential biologist who on numerous occasions has been given the nicknames "The New Darwin", "Darwin's natural heir" or "The Darwin of the 21st century". His biological specialty is myrmecology, the study of ants, on which he has been called the world's leading expert.
Natural resources are resources that exist without any actions of humankind. This includes the sources of valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value. On Earth, it includes sunlight, atmosphere, water, land, all minerals along with all vegetation, and animal life. Natural resources can be part of our natural heritage or protected in nature reserves.
Nature conservation is the moral philosophy and conservation movement focused on protecting species from extinction, maintaining and restoring habitats, enhancing ecosystem services, and protecting biological diversity. A range of values underlie conservation, which can be guided by biocentrism, anthropocentrism, ecocentrism, and sentientism. There has recently been a movement towards evidence-based conservation which calls for greater use of scientific evidence to improve the effectiveness of conservation efforts. As of 2018 15% of land and 7.3% of the oceans were protected. Many environmentalists set a target of protecting 30% of land and marine territory by 2030.
Human ecology is an interdisciplinary and transdisciplinary study of the relationship between humans and their natural, social, and built environments. The philosophy and study of human ecology has a diffuse history with advancements in ecology, geography, sociology, psychology, anthropology, zoology, epidemiology, public health, and home economics, among others.
Conservation biology is the study of the conservation of nature and of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction and the erosion of biotic interactions. It is an interdisciplinary subject drawing on natural and social sciences, and the practice of natural resource management.
Cultural ecology is the study of human adaptations to social and physical environments. Human adaptation refers to both biological and cultural processes that enable a population to survive and reproduce within a given or changing environment. This may be carried out diachronically, or synchronically. The central argument is that the natural environment, in small scale or subsistence societies dependent in part upon it, is a major contributor to social organization and other human institutions. In the academic realm, when combined with study of political economy, the study of economies as polities, it becomes political ecology, another academic subfield. It also helps interrogate historical events like the Easter Island Syndrome.
Paul Ralph Ehrlich is an American biologist, best known for his warnings about the consequences of population growth and limited resources. He is the Bing Professor Emeritus of Population Studies of the Department of Biology of Stanford University and President of Stanford's Center for Conservation Biology.
Spiritual Ecology is an emerging field in religion, conservation, and academia recognizing that there is a spiritual facet to all issues related to conservation, environmentalism, and earth stewardship. Proponents of Spiritual Ecology assert a need for contemporary conservation work to include spiritual elements and for contemporary religion and spirituality to include awareness of and engagement in ecological issues.
Applied ecology is a sub-field within ecology that considers the application of the science of ecology to real-world questions. It is also described as a scientific field that focuses on the application of concepts, theories, models, or methods of fundamental ecology to environmental problems.
Ecocentrism is a term used by environmental philosophers and ecologists to denote a nature-centered, as opposed to human-centered, system of values. The justification for ecocentrism usually consists in an ontological belief and subsequent ethical claim. The ontological belief denies that there are any existential divisions between human and non-human nature sufficient to claim that humans are either (a) the sole bearers of intrinsic value or (b) possess greater intrinsic value than non-human nature. Thus the subsequent ethical claim is for an equality of intrinsic value across human and non-human nature, or biospherical egalitarianism.
Ethnobiology is the scientific study of the way living things are treated or used by different human cultures. It studies the dynamic relationships between people, biota, and environments, from the distant past to the immediate present.
Environmental education (EE) refers to organized efforts to teach how natural environments function, and particularly, how human beings can manage behavior and ecosystems to live sustainably. It is a multi-disciplinary field integrating disciplines such as biology, chemistry, physics, ecology, earth science, atmospheric science, mathematics, and geography. The United Nations Educational, Scientific and Cultural Organisation (UNESCO) states that EE is vital in imparting an inherent respect for nature among society and in enhancing public environmental awareness. UNESCO emphasises the role of EE in safeguarding future global developments of societal quality of life (QOL), through the protection of the environment, eradication of poverty, minimization of inequalities and insurance of sustainable development. The term often implies education within the school system, from primary to post-secondary. However, it sometimes includes all efforts to educate the public and other audiences, including print materials, websites, media campaigns, etc.. There are also ways that environmental education is taught outside the traditional classroom. Aquariums, zoos, parks, and nature centers all have ways of teaching the public about the environment.
George David Tilman, ForMemRS, is an American ecologist. He is Regents Professor and McKnight Presidential Chair in Ecology at the University of Minnesota, as well as an instructor in Conservation Biology; Ecology, Evolution, and Behavior; and Microbial Ecology. He is director of the Cedar Creek Ecosystem Science Reserve long-term ecological research station. Tilman is also a professor at University of California, Santa Barbara's Bren School of Environmental Science & Management.
Conservation psychology is the scientific study of the reciprocal relationships between humans and the rest of nature, with a particular focus on how to encourage conservation of the natural world. Rather than a specialty area within psychology itself, it is a growing field for scientists, researchers, and practitioners of all disciplines to come together and better understand the earth and what can be done to preserve it. This network seeks to understand why humans hurt or help the environment and what can be done to change such behavior. The term "conservation psychology" refers to any fields of psychology that have understandable knowledge about the environment and the effects humans have on the natural world. Conservation psychologists use their abilities in "greening" psychology and make society ecologically sustainable. The science of conservation psychology is oriented toward environmental sustainability, which includes concerns like the conservation of resources, conservation of ecosystems, and quality of life issues for humans and other species.
The balance of nature is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis, which is to say that a small change will be corrected by some negative feedback that will bring the parameter back to its original "point of balance" with the rest of the system. The balance is sometimes depicted as easily disturbed and delicate, while other times it is inversely portrayed as powerful enough to correct any imbalances by itself. The concept has been described as "normative", as well as teleological, as it makes a claim about how nature should be: nature is balanced because "it is supposed to be balanced".
Deep ecology is an environmental philosophy that promotes the inherent worth of all living beings regardless of their instrumental utility to human needs, plus the restructuring of modern human societies in accordance with such ideas.
Barry William Brook is an Australian scientist. He is an ARC Australian Laureate Professor and Chair of Environmental Sustainability at the University of Tasmania in the Faculty of Science, Engineering & Technology. He was formerly an ARC Future Fellow in the School of Earth and Environmental Sciences at the University of Adelaide, Australia, where he held the Sir Hubert Wilkins Chair of Climate Change from 2007 to 2014. He was also Director of Climate Science at the Environment Institute.
Ecosystem health is a metaphor used to describe the condition of an ecosystem. Ecosystem condition can vary as a result of fire, flooding, drought, extinctions, invasive species, climate change, mining, overexploitation in fishing, farming or logging, chemical spills, and a host of other reasons. There is no universally accepted benchmark for a healthy ecosystem, rather the apparent health status of an ecosystem can vary depending upon which health metrics are employed in judging it and which societal aspirations are driving the assessment. Advocates of the health metaphor argue for its simplicity as a communication tool. "Policy-makers and the public need simple, understandable concepts like health." Critics worry that ecosystem health, a "value-laden construct", is often "passed off as science to unsuspecting policy makers and the public."
Scott P. Carroll is an American evolutionary biologist and ecologist affiliated with the University of California, Davis and the University of Queensland. Carroll's main interests are in exploring contemporary evolution to better understand adaptive processes and how those processes can be harnessed to develop solutions to evolutionary challenges in food production, medical care and environmental conservation. With Charles W. Fox, Carroll edited Conservation Biology: Evolution in Action, a book published by Oxford University Press in 2008 in which contributors, across the field of evolutionary biology and conservation, apply evolutionary thinking to concepts and practices in conservation biology, an area of research sometimes called evolutionary ecology. Carroll is founding director of the Institute for Contemporary Evolution.
Shahid Naeem is an ecologist and conservation biologist and is a Lenfest Distinguished professor and chair in the Department of Ecology, Evolution, and Environmental Biology at Columbia University. Naeem is the author of Biodiversity, Ecosystem Functioning, and Human Well-Being, and has published over 100 scientific articles.