Ecology

Ecology is the study of a community of biota, including the interactions with abiotic factors such as soils, water, and meteorological factors. The field of ecology addresses interactions of plants and animals including feeding behavior, selection of nesting or denning sites and competition among species. Time changes are particularly important, such as landscape changes arising from plant succession. Conservation of habitats is analyzed in order to determine the viability of not only individual species, but of the entire assemblage of flora, fauna and micro-organisms in a given ecosystem.

  • Review: Forest restoration Featured Article Review: Forest restoration Review: Forest restoration

    This Review, written by Raf Aerts and Olivier Honnay*, appeared first in BioMed Central Ecology—a peer-reviewed, open access journal. This review article is part of the... More »

  • Orangutan Featured Article Orangutan Orangutan

    The largest of the Asian primates, the orangutan, belongs to the Hominidae (or Great Apes) family whose members also include humans, chimpanzees, and gorillas.  While fossil... More »

  • Arctic marine environments Featured Article Arctic marine environments Arctic marine environments

    This is Section 10.2.1 of the Arctic Climate Impact Assessment Lead Author: Michael B. Usher; Contributing Authors:Terry V. Callaghan, Grant Gilchrist, Bill Heal, Glenn P.... More »

  • Habitat fragmentation Featured Article Habitat fragmentation Habitat fragmentation

    Habitat fragmentation involves alteration of habitat resulting in spatial separation of habitat units from a previous state of greater... More »

  • Terrestrial biome Featured Article Terrestrial biome Terrestrial biome

    Introduction Many places on Earth share similar climatic conditions despite being found in geographically different areas. As a result of natural selection, comparable... More »

  • Virus Featured Article Virus Virus

    A virus is a microscopic organism that can replicate only inside the cells of a host organism. Most viruses are so tiny they are only observable with at least a conventional... More »

  • Europa Island Featured Article Europa Island Europa Island

    Europa Island located in the southern Mozambique Channel, between Madagascar and Mozambique. Europa Island is about 100 kilometers (km) southeast of Bassas da... More »

  • Mojave Desert Featured Article Mojave Desert Mojave Desert

    WWF Terrestrial Ecoregions Collection The Mojave Desert is the smallest of the four North American deserts. While the Mojave lies between the... More »

  • Cheetah Featured Article Cheetah Cheetah

    The Cheetah, Acinonyx jubatus, is a vulnerable species within the cat family. While the fastest land animal and an adept hunter, this felid is not agressive... More »

Recently Updated
Mediterranean woodlands and forests Last Updated on 2016-02-05 20:54:08 WWF Terrestrial Ecoregions Collection The Mediterranean woodlands and forests ecoregion stretches from the coastal plains to the hills of northern Morocco, Algeria and Tunisia, and eventually surrounds the Atlas Mountains. To the north is the Alboran Sea, the westernmost element of the Mediterranean Sea. The variety of substrates and climates leads to a diverse mix of vegetation including holm oak forests, cork oak forests, wild olive and carob woodlands, as well as extensive Berber thuya forest. This old, endemic North African conifer species is representative of the great diversity and endemism of both flora and fauna in this ecoregion. Reptile diversity is high and the region harbors charismatic large mammals, including the rare and endangered Barbary leopard. Unfortunately, this region contains expanding human populations and is enduring... More »
Zambezian and mopane woodlands Last Updated on 2016-01-20 13:37:37 WWF Terrestrial Ecoregions Collection Zambezian and mopane woodlands are dispersed throughout southern Africa, bounded by the Luangwa River in the north and the Pongola River in the south. Mopane tree (Colophospermum mopane) woodlands mix with Zambezian woodlands in lower-elevation areas, often along major river valleys. Although the ecoregion, particularly the mopane communities, is considered to be low in endemism, it supports some of the largest and most significant wildlife populations in Africa, particularly those of the endangered African elephant (Loxodonta africana) and critically endangered Black rhino (Diceros bicornis). Important populations of predators are also found in the Zambezian and Mopane Woodlands. The abundance of wildlife can be largely attributed to the high level of protection in the ecoregion, in which more than 45 percent of... More »
Europa Island Last Updated on 2016-01-13 02:13:53 Europa Island located in the southern Mozambique Channel, between Madagascar and Mozambique. Europa Island is about 100 kilometers (km) southeast of Bassas da India. Europa, with 30 square kilometers (km2) of land area, is 6-7 km in diameter with a maximum altitude of 6 meters (m). Its shallow lagoon (generally 1 m deep) is open to the sea at one side, and covers about 900 hectares (ha), including some 700 ha of mangrove swamp that is particularly extensive to the south. The lagoon is almost entirely exposed at low tide, and supports sparse seagrass beds at its outflow. These are dominated by Thalassodendron and Halodule species. Another smaller lagoon supports a mixed vegetation. The rim of the atoll is a karst is also a quantity of exposed coral rock and extensive sand dunes and rubble to the southwest. Europa is estimated to have formed about 90,000 years ago. It is... More »
Lake Baikal Basin, Russian Federation Last Updated on 2015-09-15 16:56:57 Lake Baikal Basin (53°10'24.96 North, 107°39'45 East) is a World Heritage Site located in the Russian Federation. Situated in south central Siberia close to the Mongolian border, Lake Baikal is the oldest by 25 million years, and deepest, at 1637 metres (m), of the world's lakes. It is 3.15 million hectares (ha) in size and contains a fifth of the world's unfrozen surface freshwater. Its age and isolation and unusually fertile depths have given it the world's richest and most unusual lacustrine fauna which, like the Galapagos Islands, is of outstanding value to evolutionary science. The exceptional variety of endemic animals and plants make the lake one of the most biologically diverse on Earth. A pulp and cellulose mill on the southern shore, which has created water pollution of 200 square kilometres (km2) of the lake and generated some of the highest... More »
Enriquillo wetlands Last Updated on 2015-09-12 15:54:07 WWF Terrestrial Ecoregions Collection Consisting of a series of lagoons, the Enriquillo wetlands ecoregion  represents the remains of an ancient marine channel that divided the island of Hispaniola (Dominican Republic and Haiti) into two paleo-islands more than 5000 years before present. The largest lake in this ecoregion, Lake Enriquillo in the Dominican Republic is the largest and most hypersaline lake in all of the Antilles. It consists of a depression that is approximately 44 metres (m) below sea level, surrounded by thorny subtropical mountains and dry forests of great biological importance. The lake surface is the lowest topographic point in the entire Caribbean Basin. This lake is home to the largest population of American crocodile (Crocodylus acutus), although currently its the populations of this reptile are at risk. It is also the... More »