History of term
The term conservation biology was introduced as the title of a conference held at the University of California, San Diego in La Jolla, California in 1978 organized by biologists Bruce Wilcox and Michael E. Soulé. The meeting was prompted by the concern among scientists over tropical deforestation, disappearing species, eroding genetic diversity within species.[8] The conference and proceedings that resulted[2] sought to bridge a gap existing at the time between theory in ecology and population biology on the one hand and conservation policy and practice on the other.[9] Conservation biology and the concept of biological diversity (biodiversity) emerged together, helping crystallize the modern era of conservation science and policy.
[edit]Description
The rapid decline of established biological systems around the world means that conservation biology is often referred to as a "Discipline with a deadline".[10] Conservation biology is tied closely toecology in researching the dispersal, migration, demographics, effective population size, inbreeding depression, and minimum population viability of rare or endangered species.[11] To better understand the restoration ecology of native plant and animal communities, the conservation biologist closely studies both their polytypic and monotypic habitats[12] that are affected by a wide range of benign and hostile factors. Conservation biology is concerned with phenomena that affect the maintenance, loss, and restoration of biodiversity and the science of sustaining evolutionary processes that engender genetic, population, species, and ecosystem diversity.[5][6][7][11] The concern stems from estimates suggesting that up to 50% of all species on the planet will disappear within the next 50 years,[13] which has contributed to poverty, starvation, and will reset the course of evolution on this planet.[14][15]
Conservation biologists research and educate on the trends and process of biodiversity loss, species extinctions, and the negative effect these are having on our capabilities to sustain the well-being of human society. Conservation biologists work in the field and office, in government, universities, non-profit organizations and industry. They are funded to research, monitor, and catalog every angle of the earth and its relation to society. The topics are diverse, because this is an interdisciplinary network with professional alliances in the biological as well as social sciences. Those dedicated to the cause and profession advocate for a global response to the current biodiversity crisis based on morals, ethics, and scientific reason. Organizations and citizens are responding to the biodiversity crisis through conservation action plans that direct research, monitoring, and education programs that engage concerns at local through global scales.[4][5][6][7]
[edit]History
The conservation of natural resources is the fundamental problem. Unless we solve that problem, it will avail us little to solve all others.
Theodore Roosevelt[16]
[edit]Natural resource conservation
See also: Conservation movement
Efforts to conserve and protect global biodiversity are a recent phenomenon.[7] Prior to the global conservation era, there was the coming of the age of conservation. Some historians have linked this with the 1916 National Parks Act, which included the 'use without impairment' clause, sought by John Muir. This eventually resulted in the removal of a proposal to build a dam in Dinosaur National Monument in 1959.[17]
Natural resource conservation, however, has a history that extends prior to the age of conservation. Resource ethics grew out of necessity through direct relations with nature. Regulation or communal restraint became necessary to prevent selfish motives from taking more than could be locally sustained, therefore compromising the long-term supply for the rest of the community.[7]This social dilemma with respect to natural resource management is often called the "Tragedy of the Commons".[18][19] From this principal, conservation biologists can trace communal resource based ethics throughout cultures as a solution to communal resource conflict.[7] For example, the Alaskan Tlingit peoples and the Haida of the Pacific Northwest had resource boundaries, rules, and restrictions among clans with respect to the fishing of Sockeye Salmon. These rules were guided by clan elders who knew lifelong details of each river and stream they managed.[7][20] There are numerous examples in history where cultures have followed rules, rituals, and organized practice with respect to communal natural resource management.[21]
Conservation ethics are also found in early religious and philosophical writings. There are examples in the Tao, Shinto, Hindu, Islamic and Buddhist traditions.[7][22] In Greek philosophy, Plato lamented about pasture land degradation: "What is left now is, so to say, the skeleton of a body wasted by disease; the rich, soft soil has been carried off and only the bare framework of the district left."[23] In the bible, through Moses, God commanded to let the land rest from cultivation every seventh year.[7][24] Before the 18th century, however, much of European culture considered it a pagan view to admire nature. Wilderness was denigrated while agricultural development was praised.[25] However, as early as AD 680 a wildlife sanctuary was founded on the Farne Islands bySt Cuthbert in response to his religious beliefs.[7]
[edit]Early naturalists
Natural history was a major preoccupation in the 18th century, with grand expeditions and the opening of popular public displays in Europe and North America. By 1900 there were 150 natural history museums in Germany, 250 in Great Britain, 250 in the United States, and 300 in France.[26] Preservationist or conservationist sentiments are a development in the late 18th to early 20th century. The 19th century fascination with natural history engendered a fervor to be the first to collect rare specimens with the goal of doing so before they became extinct by other such collectors.[25][26] Although his artistic works and romantic depiction of avian life inspired many bird enthusiasts and conservation organizations, the writings of John James Audubon, by modern standards, show insensitivity toward bird conservation as he shot and collected hundreds of specimens.[26] Inspired by him, however, the first chapter of the Audubon Societystarted in 1905 for the purpose of protecting birds.[27]
[edit]Coming of the Age of Conservation
The modern concept of ecosystem services can be found in the late 19th century. "The utility of Natural History or its applicability to promote the material wealth of the State cannot be doubted. It was a great mistake to suppose that the subjects of Zoology, Botany, and Geology did not involve much that affects our comfort, convenience, health and wealth."[28] However, the article continues and discusses the dread of agricultural pests and the utility of understanding their natural history for the purpose of facilitating their destruction.
In the department of Woods and Forestry we should teach on the principals of conservation and teach on the lessons of economy rather than of waste in the natural resources of our country.
By the early 19th century biogeography was ignited through efforts of Alexander von Humboldt, Lyell andDarwin;[30] their efforts, while important in relating species to their environments, were part of the naturalist tradition and fell short of conservation biology proper. Darwin, for example, hunted and shot birds and kept natural history cabinets in line with Victorian tradition.
Modern roots of conservation biology can be found in the late 19th century Enlightenment period particularly in England and Scotland.[25][31]A number of thinkers, among them notably Lord Monboddo,[31] described the importance of "preserving nature"; much of this early emphasis had its origins in Christian theology.
[edit]20th century conservation
In the 20th century, actions in the United Kingdom, United States, and Canada emphasized the protection of habitat areas pursuant to visions of such people as John Muir, Theodore Roosevelt, and Aldo Leopold. While the Canadian nor the United Kingdom governments did not pioneer the creation of National Parks as the United States did in the late 19th century, there were many far-sighted civil servants who were dedicated to wildlife conservation and of notable mention. Some of these historical figures include Charles Gordon Hewitt [23] and James Harkin.[32]
The term conservation came into use in the late 19th century and referred to the management, mainly for economic reasons, of such natural resources as timber, fish, game, topsoil, pastureland, and minerals. In addition it referred to the preservation of forests (forestry), wildlife (wildlife refuge), parkland,wilderness, and watersheds. Western Europe was the source of much 19th century progress for conservation biology, particularly the British Empire with the Sea Birds Preservation Act 1869. However, the United States made contributions to this field starting with thinking of Thoreau and taking form with the Forest Act of 1891, John Muir's founding of the Sierra Club in 1892, the founding of the New York Zoological Society in 1895 and establishment of a series of national forests and preserves by Theodore Roosevelt from 1901 to 1909.[33]
Not until the mid-20th century did efforts arise to target individual species for conservation, notably efforts in big cat conservation in South America led by the New York Zoological Society.[34] In the early 20th century the New York Zoological Society was instrumental in developing concepts of establishing preserves for particular species and conducting the necessary conservation studies to determine the suitability of locations that are most appropriate as conservation priorities; the work of Henry Fairfield Osborn Jr., Carl E. Akeley, Archie Carr and Archie Carr III is notable in this era.[35][36][citation needed] Akeley for example, having led expeditions to the Virunga Mountains and observed the mountain gorilla in the wild, became convinced that the species and the area were conservation priorities. He was instrumental in persuading Albert I of Belgium to act in defense of themountain gorilla and establish Albert National Park (since renamed Virunga National Park) in what is now Democratic Republic of Congo.[37]
By the 1970s, led primarily by work in the United States under the Endangered Species Act[38] along with the Species at Risk Act (SARA) of Canada, Biodiversity Action Plans developed inAustralia, Sweden, the United Kingdom, hundreds of species specific protection plans ensued. Notably the United Nations acted to conserve sites of outstanding cultural or natural importance to the common heritage of mankind. The programme was adopted by the General Conference of UNESCO in 1972. As of 2006, a total of 830 sites are listed: 644 cultural, 162 natural. The first country to pursue aggressive biological conservation through national legislation was the United States, which passed back to back legislation in the Endangered Species Act[39] (1966) andNational Environmental Policy Act (1970),[40] which together injected major funding and protection measures to large scale habitat protection and threatened species research. Other conservation developments, however, have taken hold throughout the world. India, for example, passed the Wildlife Protection Act of 1972 [24].
In 1980 a significant development was the emergence of the urban conservation movement. A local organization was established in Birmingham, UK, a development followed in rapid succession in cities across the UK, then overseas. Although perceived as a grassroots movement, its early development was driven by academic research into urban wildlife. Initially perceived as radical, the movement's view of conservation being inextricably linked with other human activity has now become mainstream in conservation thought. Considerable research effort is now directed at urban conservation biology. The Society for Conservation Biology originated in 1985.[41]
By 1992 most of the countries of the world had become committed to the principles of conservation of biological diversity with the Convention on Biological Diversity;[42] subsequently many countries began programmes of Biodiversity Action Plans to identify and conserve threatened species within their borders, as well as protect associated habitats. The late 1990s saw increasing professionalism in the sector, with the maturing of organisations such as the Institute of Ecology and Environmental Management and the Society for the Environment.
Since 2000 the concept of landscape scale conservation has risen to prominence, with less emphasis being given to single-species or even single-habitat focused actions. Instead an ecosystem approach is advocated by most mainstream conservationist, although concerns have been expressed by those working to protect some high-profile species.
Ecology has clarified the workings of the biosphere; i.e., the complex interrelationships among humans, other species, and the physical environment. The burgeoning human population and associated agriculture, industry, and the ensuing pollution, have demonstrated how easily ecological relationships can be disrupted.[43]
| “ | The last word in ignorance is the man who says of an animal or plant: "What good is it?" If the land mechanism as a whole is good, then every part is good, whether we understand it or not. If the biota, in the course of aeons, has built something we like but do not understand, then who but a fool would discard seemingly useless parts? To keep every cog and wheel is the first precaution of intelligent tinkering. |
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