History of biological conservation
The origins of biological conservation can be traced to philosophical and religious beliefs about Man as a full part of Nature:
Taoist and Shintoist philosophies encourage recognition of special sites, allowing spiritual experiments.
Jainism, Hinduism and Buddhism, grant a sacred value to animals. Primitive religions also recognize sacred values to sites such as forests, lakes, mountains. Islam recognizes each species as its own "nation", and an obligation of man to khalifa, or "stewardship" of the Earth. Specific conservation mechanisms such as haram and hima zones, and the origins of the idea of carrying capacity, were a product of Islamic civilization.
There are three main philosophical movements roughly characterized as conservation movements (plural):
Romantic-Transcendental
Ralph Waldo Emerson and Henry David Thoreau, in 1880, defend the idea that Nature has a meaning, beyond economic profits. Nature is a temple where the Man can share and communicate with God.
John Muir defends a preservationist ethic, according to which the beauty of Nature stimulates the religious feelings and supports spiritual experiments. He also sees in biological communities, groups of species evolving together and depending ones on the others. These communities, superorganisms, are a prelude to the Gaia hypothesis developed later by James Lovelock (1988) and the Gaia philosophy that began to stem from it.
Resource Conservation
Gifford Pinchot, at the beginning of the 20th century, develops an ethics of resource conservation, which is based on an utilitarian philosophy. According to him, Nature is a set of things defined by their utility or their harmful character. He defends the sharing of resources between all users, current and future (a first approach to sustainable development) by avoiding despoiling. However, he does not take into account the costs of degradation and pollution of the environment nor the erosion of resources. This view is taken by the modern environmental movement and the attempts to assign a value of Earth, value of life and quantify nature's services.
Evolutionary-Ecological
With Aldo Leopold (A Sand County Almanac, 1959), an evolutionary ecology develops, a prospect marked by dynamism rather than by static conservation. In his famous chapter Land Ethics, Leopold states A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community. It is wrong when it tends otherwise.
As an extension, Donella Meadows later defined eco-evolution as a prerequisite to the intelligent extension of a system - a theme carried to its limits by Deep Ecology and the later terrist movement.
See also:
- diversity, biodiversity, cultural diversity
- Conservation ecology
- Conservation biology
- ex-situ conservation
- in-situ conservation
- List of Conservation topics and Protected area
- Global 200 (200 ecoregions defined by WWF as the most critical regions for conservation)
- environmental movement
- globalization
- International Treaty on Plant Genetic Resources for Food and Agriculture
- Environmental organisations
- ecology