Ecology (from Ancient Greek οἶκος (oîkos) 'house' and -λογία (-logía) 'study of') is the natural science of the relationships among living organisms and their environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere levels. Ecology overlaps with the closely related sciences of biogeography, evolutionary biology, genetics, ethology, and natural history.
Ecology is a branch of biology, and is the study of abundance, biomass, and distribution of organisms in the context of the environment. It encompasses life processes, interactions, and adaptations; movement of materials and energy through living communities; successional development of ecosystems; cooperation, competition, and predation within and between species; and patterns of biodiv...
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Aegopodium podagraria1 ies.jpg
Aegopodium podagraria
Blue Linckia Starfish.JPG
A Blue Starfish (Linckia laevigata) resting on hard Acropora and Porites corals (one can also see An...
Bufo boreas.jpg
This is a western toad (Bufo boreas - or Anaxyrus boreas) photographed in a wetland with duckweed.
Chameleon spectra.jpg
Social display, colours and reflectance spectra from different species of African dwarf chameleons (...
Chesapeake Waterbird Food Web.jpg
Diagram of a food chain for waterbirds of the Chesapeake Bay, United States.
DNA simple horizontal.svg
DNA molecule
Darwin EcoExperiment.JPG
This shows the Hortus Gramineus, or grass garden, at Woburn Abbey in 1817 which was the site of the ...
Earth Day Flag.png
Higher-quality PNG version of John McConnell's Earth Day flag, based on this photograph. Requested a...
European honey bee extracts nectar.jpg
A European honey bee (Apis mellifera) extracts nectar from an Aster flower using its proboscis. Tiny...
Grassflowers.jpg
Self made picture of a grass species showing flowers.
Issoria lathonia.jpg
Lodgepole pine cone after fire.jpg
Long-tailed Broadbill (Psarisomus dalhousiae).jpg
Long-tailed Broadbill (Psarisomus dalhousiae) at Kaeng Krachan, Phetchaburi, Thailand
Male Lion and Cub Chitwa South Africa Luca Galuzzi 2004 edit1.jpg
Male Lion (Panthera leo) and Cub eating a Cape Buffalo in Northern Sabi Sand Game Reserve, South Afr...
Mosaic fire burn.jpg
Nicola Perscheid - Ernst Haeckel.jpg
Photo des Mediziners Ernst Haeckel.
Parasitismus.jpg
harvestman suffering from mite infestation. Description: With a short break in the Giant Mountains I...
Ecoecolfigure1.jpg
Hawk eating prey.jpg
A juvenile Red-tailed Hawk Buteo jamaicensis eating its prey (California Meadow Vole Microtus califo...
Leaf 1 web.jpg
A leaf.