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Ephemerality (from the Greek word ἐφήμερος, meaning 'lasting only one day' [2]) is the concept of things being transitory, existing only briefly. Academically, the term ephemeral constitutionally describes a diverse assortment of things and experiences, from digital media to types of streams. [ 3 ] "
Trillium grandiflorum in the foreground and the smaller Thalictrum thalictroides in the background are both spring ephemerals of North American deciduous forests. An ephemeral plant is a plant with a very short life cycle or very short period of active growth, often one that grows only during brief periods when conditions are favorable.
One definition for ephemera is "the minor transient documents of everyday life". [3] [4] Ephemera are often paper-based, printed items, including menus, ticket stubs, newspapers, postcards, posters, sheet music, stickers, and greeting cards. However, since the 1990s, the term has been used to refer to digital artefacts or texts. [5]
Prefix meaning "position away from". [1] abaxial Surface of an organ facing away from the organ's axis, e.g. the lower surface of a lateral organ such as a leaf or petal. [2] Contrast adaxial. abort To abandon development of a structure or organ. [3] abscission Natural shedding of an organ that is mature or aged, as of a ripe fruit or an old ...
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Vernal pools, also called vernal ponds or ephemeral pools, are seasonal pools of water that provide habitat for distinctive plants and animals. They are considered to be a distinctive type of wetland usually devoid of fish, and thus allow the safe development of natal amphibian and insect species unable to withstand competition or predation by ...
Around half of all mayfly species whose reproductive biology has been described are parthenogenetic (able to asexually reproduce), including both partially and exclusively parthenogenetic populations and species. [18] Many species breed in moving water, where there is a tendency for the eggs and nymphs to get washed downstream.
Phoresis is used as a strategy for dispersal, [5] [6] seasonal migration, [7] transport to new host/habitat, [8] escaping ephemeral habitats, [9] [3] and reducing inbreeding depression. [10] In addition to the benefits afforded to individuals and species, its presence can add to the ecological diversity and complexity of an ecosystem.