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  2. Local adaptation - Wikipedia

    en.wikipedia.org/wiki/Local_adaptation

    A stricter definition of local adaptation requires 'reciprocal home site advantage', where for a pair of populations each out performs the other in its home site. [ 5 ] [ 2 ] This definition requires that local adaptation result in a fitness trade-off, such that adapting to one environment comes at the cost of poorer performance in a different ...

  3. Skeletal changes of vertebrates transitioning from water to land

    en.wikipedia.org/wiki/Skeletal_changes_of...

    Yet, it shares the ability to lift itself using a solid surface as a base with its pelvic region with Acanthostega and is also observed to move with tetrapod-like locomotion in an aquatic environment. [4] This illustrates that a fundamental innovation in tetrapods is also found in a lower, sister taxon, in which members lack a sacrum. [4]

  4. Natal homing - Wikipedia

    en.wikipedia.org/wiki/Natal_homing

    One hypothesis is that they use both chemical and geomagnetic cues that allow them to return to their birthplace. The Earth's magnetic field may help the fish navigate the ocean to find the spawning region. From there, the animal locates where the river dumps into the sea with the chemical cues unique to the fish's natal stream. [3]

  5. Species translocation - Wikipedia

    en.wikipedia.org/wiki/Species_translocation

    Reinforcement is the deliberate introduction and integration of an organism into an area where its species is already established. [1] This mode of translocation is implemented in populations whose numbers have dropped below critical levels, become dangerously inbred, or who need artificial immigration to maintain genetic diversity. [15]

  6. Migration (ecology) - Wikipedia

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

    Wildebeest migrating in the Serengeti. Migration, in ecology, is the large-scale movement of members of a species to a different environment.Migration is a natural behavior and component of the life cycle of many species of mobile organisms, not limited to animals, though animal migration is the best known type.

  7. Ecological succession - Wikipedia

    en.wikipedia.org/wiki/Ecological_succession

    When there are more than one climax communities in the region, modified by local conditions of the substrate such as soil moisture, soil nutrients, topography, slope exposure, fire, and animal activity, it is called edaphic climax. Succession ends in an edaphic climax where topography, soil, water, fire, or other disturbances are such that a ...

  8. Diel vertical migration - Wikipedia

    en.wikipedia.org/wiki/Diel_vertical_migration

    Some organisms have been found to move with the tidal cycle. A study looked at the abundance of a species of small shrimp, Acetes sibogae, and found that they tended to move further higher in the water column and in higher numbers during flood tides than during ebb tides experiences at the mouth of an estuary. It is possible that varying ...

  9. Animal migration - Wikipedia

    en.wikipedia.org/wiki/Animal_migration

    Tidal migration is the use of tides by organisms to move periodically from one habitat to another. This type of migration is often used in order to find food or mates. Tides can carry organisms horizontally and vertically for as little as a few nanometres to even thousands of kilometres. [11]