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
Southern Africa bushveld Last Updated on 2015-04-18 19:57:14 WWF Terrestrial Ecoregions Collection The Southern Africa bushveld is an element of the vast savannas that cover much of southern Africa. There is low endemism in this ecoregion for both flora or fauna, but the charismatic large mammals and rich birdlife characteristic of African savannas are in evidence. The rugged Waterberg Mountains contain the highest levels of species richness and endemism in the region, and are noted for their reptile endemism. Cattle ranching and urban expansion from the nearby Pretoria-Witwatersrand-Vereeniging complex are the major threats to the conservation of this ecoregion. However, ecotourism has become a major land-use commitment in the bushveld and has led to the establishment of a number of small nature reserves and private game parks, which augment the conservation status of this ecoregion. The Southern African... More »
Kalahari acacia-baikiaea woodlands Last Updated on 2015-04-08 23:56:27 WWF Terrestrial Ecoregions Collection Semi-arid Kalahari acacia-baikiaea woodland stretches across the center of southern Africa, from northern Namibia through Botswana and just into the Tuli Block of South Africa. Surface water is scarce here, and droughts occur approximately once every seven years. As a result, the human population is relatively low, especially on the sandveld that covers most of the ecoregion. This woodland supports a rich and diverse fauna, including a variety of ungulates and a number of threatened large mammals such as White Rhinoceros (Ceratotherium simum), Black Rhinoceros (Diceros bicornis), African Painted Hunting Dog (Lycaon pictus), and African Elephant (Loxodonta africana). However, human populations are increasing and the growing cattle industry has far-reaching adverse effects on the environment and wildlife. The... More »
Angolan scarp savanna and woodlands Last Updated on 2015-04-08 23:53:01 WWF Terrestrial Ecoregions Collection The Angolan scarp savanna and woodlands ecoregion is a complex area where several major African ecological zones meet, and where topographical features have resulted in a high diversity of vegetation types and significant levels of endemism. Biologically, the most important portion of the ecoregion is the west-facing scarp that supports rainforest at higher altitudes. This forest holds a significant number of endemic birds, and some other endemic animals and plants. The long period of insurrection, foreign mercenary activity and civil instability in Angola have contributed to the outcome that these forests and other parts of the ecoregion have never been adequately surveyed biologically, and hence more endemics can be expected with further study. However, the highly unstable civil war means that all biological... More »
Madagascar mangroves Last Updated on 2015-04-08 23:48:19 WWF Terrestrial Ecoregions Collection Shielded from monsoon winds by the central mountains of Madagascar, Madagascar mangroves occupy a wide range of environmental and climatic conditions along the western coastline along the Indian Ocean. Although the ecoregion’s species richness is low, it is unusual in supporting certain endemic tree species. The mangroves also shelter highly diverse mollusk and crustacean communities, while capturing sediment that threatens coral reefs and seagrass beds. Birds, sea turtles, and dugongs all utilize mangroves, as do the Malagasy people. Rice farming, shrimp aquaculture and construction materials are all carried out within these mangroves. On Madagascar, mangroves are found primarily along the western coast. They occur in a wide range of environmental and climatic conditions, fostered by a low coastal... More »
Puget lowland forests Last Updated on 2015-04-08 23:44:49 WWF Terrestrial Ecoregions Collection The Puget lowland forests occupy a north-south topographic depression between the Olympic Peninsula and western slopes of the Cascade Mountains, extending from north of the Canadian border to the lower Columbia River along the Oregon border. The portion of this forest ecoregion within British Columbia includes the Fraser Valley lowlands, the coastal lowlands locally known as the Sunshine Coast and several of the Gulf Islands. This ecoregion is within the Nearctic Realm and classified as part of the Temperate Coniferous Forests biome. This ecoregion is distinct from the mountainous hydro-riparian systems to the west, as well as the drier areas to the north and east. The Puget Sound Valley is a topographically depressed previously glaciated area consisting of moderately dissected tableland covered by glacial till,... More »