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Species evenness is the relative number of individuals of each species in a given area. [181] Species richness [182] is the number of species present in a given area. Species diversity [183] is the relationship between species evenness and species richness. There are many ways to measure biodiversity within a given ecosystem.
Diversity in the ecosystem is significant to human existence for a variety of reasons. Ecosystem diversity boosts the availability of oxygen via the process of photosynthesis amongst plant organisms domiciled in the habitat.
A megadiverse country is one of a group of nations that harbours the majority of Earth's species and high numbers of endemic species. Conservation International identified 17 megadiverse countries in 1998, [1] [2] all of which are located at least partially in tropical or subtropical regions. Megadiversity means exhibiting great biodiversity.
Insects make up the vast majority of animal species. [14]Chapman, 2005 and 2009 [9] has attempted to compile perhaps the most comprehensive recent statistics on numbers of extant species, drawing on a range of published and unpublished sources, and has come up with a figure of approximately 1.9 million estimated described taxa, as against possibly a total of between 11 and 12 million ...
A stable condition is favored by species if compared to unstable condition. Species can develop and reproduce if the situation is favorable. No doubt, a disaster can totally cause extinction to an area, for example: flood in Thailand (2011). However, a small or moderate amount of disturbance may increase the biodiversity as well.
Meliaceae, the mahogany family, is a flowering plant family of mostly trees and shrubs (and a few herbaceous plants, mangroves) in the order Sapindales.. They are characterised by alternate, usually pinnate leaves without stipules, and by syncarpous, [2] apparently bisexual (but actually mostly cryptically unisexual) flowers borne in panicles, cymes, spikes or clusters.
Species diversity is the number of different species that are represented in a given community (a dataset). The effective number of species refers to the number of equally abundant species needed to obtain the same mean proportional species abundance as that observed in the dataset of interest (where all species may not be equally abundant).
Other ape species include the white-handed gibbon and the siamang. [1] Malaysia has 10 monkey species, divided between langurs and macaques. [5] Proboscis monkeys, the world's largest monkey, [1] are a langur species endemic to Borneo. [5] Macaque species include the crab-eating macaque and the pig-tailed macaque. [1]