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Dominance (ecology)
Ecological dominance is the degree to which one or several species have a major influence controlling the other species in their ecological community (because of their large size, population, productivity, or related factors) or make up more of the biomass. Most ecological communities are defined by their dominant species. *In many examples of wet woodland in western Europe, the dominant tree is alder (''Alnus glutinosa''). *In temperate bogs, the dominant vegetation is usually species of ''Sphagnum'' moss. * Tidal swamps in the tropics are usually dominated by species of mangrove (''Rhizophoraceae'') *Some sea floor communities are dominated by brittle stars. *Exposed rocky shorelines are dominated by sessile organisms such as barnacles and limpets. See also * National Vegetation Classification, a system for classifying British plant communities by their dominant species * Monodominance Monodominance is an ecological condition in which more than 60% of the tree canopy c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wunderlichioideae
The Wunderlichioideae are a subfamily of flowering plants belonging to the family Asteraceae. The subfamily includes eight genera and about 24 species that are concentrated in Brazil (''Wunderlichia'') and Guyana (''Chimantaea'', ''Stenopadus'', and ''Stomatochaeta''), with some species in other South America countries (''Hyalis'' and ''Ianthopappus'') and others (''Nouelia'' and ''Leucomeris'') in Southeast Asia and the Himalayas.Panero, J. L., and V. A. FunkThe value of sampling anomalous taxa in phylogenetic studies: major clades of the Asteraceae revealed.Mol. Phylogenet. Evol. 2008; 47: 757-782. Distinguishing features of the members of this subfamily are presence of styles with glabrous style branches and a deletion in the ''rpoB'' gene. Two tribes, Wunderlicheae and Hyalideae, are recognised. References External links *Stevens, PF (2001 onwards)Asteraceae Angiosperm Phylogeny Website The Angiosperm Phylogeny Website (or APweb) is a website dedicated to research on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae Genera
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more techn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
