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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

    These terms help distinguish between very specific, localized interactions, such as those occurring at the individual or population level, and broader, more complex interactions that occur at the community and ecosystem levels, providing a framework for understanding ecological structure and processes at different scales. [2]

  4. Hierarchy theory - Wikipedia

    en.wikipedia.org/wiki/Hierarchy_theory

    Hierarchy theory focuses on levels of organization and issues of scale, with a specific focus on the role of the observer in the definition of the system. [1] Complexity in this context does not refer to an intrinsic property of the system but to the possibility of representing the systems in a plurality of non-equivalent ways depending on the ...

  5. Category:Levels of organization (Biology) - Wikipedia

    en.wikipedia.org/wiki/Category:Levels_of...

    Download as PDF; Printable version; In other projects Wikidata item; ... Help. Pages in category "Levels of organization (Biology)" The following 2 pages are in this ...

  6. Ecological efficiency - Wikipedia

    en.wikipedia.org/wiki/Ecological_efficiency

    A diagram of energy transfer between trophic levels. Primary production occurs in autotrophic organisms of an ecosystem. Photoautotrophs such as vascular plants and algae convert energy from the sun into energy stored as carbon compounds. Photosynthesis is carried out in the chlorophyll of green plants. The energy converted through ...

  7. Ecology - Wikipedia

    en.wikipedia.org/wiki/Ecology

    The scope of ecology contains a wide array of interacting levels of organization spanning micro-level (e.g., cells) to a planetary scale (e.g., biosphere) phenomena. Ecosystems, for example, contain abiotic resources and interacting life forms (i.e., individual organisms that aggregate into populations which aggregate into distinct ecological ...

  8. Living systems - Wikipedia

    en.wikipedia.org/wiki/Living_systems

    Below the level of living systems, he defines space and time, matter and energy, information and entropy, levels of organization, and physical and conceptual factors, and above living systems ecological, planetary and solar systems, galaxies, etc. [3] [4] [5] Miller's central thesis is that the multiple levels of living systems (cells, organs ...

  9. Energy flow (ecology) - Wikipedia

    en.wikipedia.org/wiki/Energy_flow_(ecology)

    Of all the net primary productivity at the producer trophic level, in general only 10% goes to the next level, the primary consumers, then only 10% of that 10% goes on to the next trophic level, and so on up the food pyramid. [1] Ecological efficiency may be anywhere from 5% to 20% depending on how efficient or inefficient that ecosystem is.