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
Madagascar succulent woodlands Last Updated on 2015-06-30 20:22:56 WWF Terrestrial Ecoregions Collection The Madagascar succulent woodlands ecoregion comprises a mosaic of succulent xeric adapted plants and deciduous forests that represent critical habitats for many species of animals and plants restricted to the western region of Madagascar. Some of the remarkable fauna and flora found in this ecoregion include the Giant jumping rat (Hypogeomys antimena), the Flat-tailed tortoise (Pyxis planicauda), two species of baobabs and several species of primates. The Madagascar succulent woodlands is classified within the Desert and Xeric Shrublands Biome, and is part of the Afrotropics Realm. These succulent woodlands are situated in southwestern Madagascar extending northward to the central western part of the island. Its southern limit is the start of the Madagascar spiny thicket and northern limit the lower... More »
Madagascar spiny thickets Last Updated on 2015-06-25 20:16:56 WWF Terrestrial Ecoregions Collection The Madagascar spiny thickets or spiny desert of southern Madagascar, also referred to as deciduous thicket, is a globally distinctive ecoregion. This ecoregion is part of the Deserts and Xeric Shrublands biome, within the Afrotropics Realm. While the island of Madagascar is notable for exceptional levels of endemic plants and animals, the spiny thicket is particularly distinctive with 95 percent of the plant species endemic to the ecoregion. Members of the endemic Didiereaceae family present dominate the thicket, which have similar xeric adaptations to New World cacti, such as small leaves and spines, but with the Madagascar spiny thickets displaying more woody rather than succulent characteristics. There are a total of 288 recorded vertebrate taxa in the Madagascar spiny thickets, including several endemic... More »
Madagascar ericoid thickets Last Updated on 2015-06-17 16:30:14 WWF Terrestrial Ecoregions Collection The fragile montane habitats of the Madagascar ericoid thickets of Madagascar are naturally isolated zones which are threatened mostly by man-made fires to expand cattle pasture. Located on the upper slopes of Madagascar's four major mountain massifs, the ericoid thickets have only recently been explored biologically. There is presently much to be discovered about the biodiversity of this region and how it relates to Madagascar's original forest cover. However, it is established that similar to other ecoregions on Madagascar there are a number of narrowly distributed endemic species and recent biological inventories of the ericoid thicket has identified further endemic species. The Madagascar ericoid thickets is within the Montane grasslands and shrublands biome in the Afrotropics Realm. This... More »
Madagascar lowland forests Last Updated on 2015-06-13 15:41:54 WWF Terrestrial Ecoregions Collection The Madagascar lowland forests include a narrow strip of humid forests along the east coast of Madagascar, low-elevation forests (from sea level up to 800 metres). Madagascar, the fourth largest island in the world, has been isolated for 150 to 180 million years from any continental landmass. This prolonged isolation is the major factor that led to extremely high levels of endemism of plant and animal species. Endemism within the island is approximately 80 to 90 percent for all groups, and endemic families and genera are commonplace. It is estimated that 85 percent of the island's 12,000 species of flowering plants are found nowhere else in the world. This unique biodiversity has led to the recognition of Madagascar, which is roughly twice the size of Arizona, as a "living laboratory" and the... More »
Madagascar subhumid forests Last Updated on 2015-06-12 14:14:17 WWF Terrestrial Ecoregions Collection The Madagascar subhumid forests ecoregion, covering most of the Central Highlands of Madagascar, boasts a considerable number of endemic species, found chiefly in the relict forest patches and also in some wetland areas, but the remaining habitats are agricultural areas that have almost no biological value, or eroded bare soil areas virtually devoid of vegetation. This ecoregion is the site of some of the major extinctions of recent times, including that of the world’s largest flightless bird, Madagascar elephant bird (Aepyornis maximus); this bird stood at a height of three metres and attained a body mass of one fourth of a ton. It was hunted to extinction by native peoples, who also collected the eggs for human consumption. A number of large lemurs have also been driven to extinction by native... More »