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  2. Biological organisation - Wikipedia

    en.wikipedia.org/wiki/Biological_organisation

    The higher levels of this scheme are often referred to as an ecological organisation concept, or as the field, hierarchical ecology. Each level in the hierarchy represents an increase in organisational complexity , with each "object" being primarily composed of the previous level's basic unit. [ 2 ]

  3. Ecological unit - Wikipedia

    en.wikipedia.org/wiki/Ecological_unit

    Ecological units refer to specific levels or degrees of organization within ecological systems. The units that are most commonly used and discussed within ecological systems are those at the levels of individuals, populations , communities , and ecosystems . [ 1 ]

  4. Ecology - Wikipedia

    en.wikipedia.org/wiki/Ecology

    The largest scale of ecological organization is the biosphere: the total sum of ecosystems on the planet. ... From the smallest scale of biology, ...

  5. List of countries by ecological footprint - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries by ecological footprint. The table is based on data spanning from 1961 to 2013 from the Global Footprint Network's National Footprint Accounts published in 2016. Numbers are given in global hectares per capita. The world-average ecological footprint in 2016 was 2.75 global hectares per person

  6. Smallest organisms - Wikipedia

    en.wikipedia.org/wiki/Smallest_organisms

    The smallest penguin species is the little blue penguin (Eudyptula minor), which stands around 30–33 cm (12–13 in) tall and weighs 1.2–1.3 kg (2.6–2.9 lb). [74] The smallest bird of prey is the Black-thighed falconet (Microhierax fringillarius), with a wingspan of 27–32 centimetres (11–13 in), roughly the size of a sparrow. [75]

  7. Megadiverse countries - Wikipedia

    en.wikipedia.org/wiki/Megadiverse_countries

    TOP 20 Global Biodiversity Index [3]; Country (or dependent territory) Bird Amphibian Fish Mammal Reptile Vascular Plant Biodiversity Index Brazil 1,816: 1,141: 4,738

  8. Ecosystem - Wikipedia

    en.wikipedia.org/wiki/Ecosystem

    The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) is an intergovernmental organization established to improve the interface between science and policy on issues of biodiversity and ecosystem services. [47] [48] It is intended to serve a similar role to the Intergovernmental Panel on Climate Change. [49]

  9. List of environmental organizations - Wikipedia

    en.wikipedia.org/wiki/List_of_environmental...

    This study examines the role of ecological threat in shaping the U.S. environmental movement. … Declines in wildlife populations are associated with the foundings of wildlife and wilderness protection organizations while increases in air pollution are associated with the foundings of organizations focused on ecosystem well-being and public health