A. ecosystem B. biotic community C. population D. biome 相关知识点: 试题来源: 解析 B。本题考查生物群落的定义。一群不同物种在同一区域生活和相互作用被称为生物群落。选项 A“ecosystem”是包含生物和非生物成分的整体。选项 C“population”是同一物种的个体集合。选项 D“biome”是大的生态区域。反馈...
To capture patterns of commonness and species composition we calculated the number of hyperdominants (H#), defined as the minimum number of species required to account for 50% of the population of an assemblage6, hyperdominant species identities, total number of species (TS), hyperdominant ...
Earth’s biosphere functioning is highly dependent on trees, which are essential ecosystem engineers1,2and generate habitat to half the world’s known terrestrial flora and fauna3,4. Furthermore, tree diversity holds significant cultural and spiritual value, provides economically valuable products for ...
Why a native population becomes super-dominant? Compared to exotics, native species are much less likely to develop invasive behaviour in a community. In North America and Europe, for example, it has been verified that non-native species are much more prone to become invasive and cause impacts...
Synthetic communities of microbes and individual synthetic, multicellular plants, and animals generated by metagenome and mcirobiome engineering in a population or ecosystem, and which have no or merely ambiguous comparators. These classes indicate that even the safest microbes carry some risk, with unce...
Technical terms that imply different degrees to which assemblages can be divided spatially include association, habitat, ecosystem, biome, life zone, ecoregion, landscape, or biotype. There is also no agreement on the boundaries of assemblages—say, where the forest biome ends and the prairie ...
Regrowth-based Population Control:The option exists for population control to adjust plant regrowth speed instead of food efficiency. This is likely to result in larger population booms and crashes than the default, but is also more realistic. ...
Discuss how an organism (or population) in an ecosystem might be affected by the following abiotic factor: Temperature. A farmer sets up a buffalo farm in this ecosystem. Over time, the buffalo greatly reduce the grass biomass ...
(that is, fire activity and population density) and topography (that is, elevation) (Supplementary Table6). Incoming solar radiation can also strongly impact diversity but was excluded due to its high collinearity with temperature for the boreal biome. Seasonal precipitation and temperature from 2000...
One is the species richness which refers to the total number of individuals within that community. The other is species composition which is the total number of different species present (types of plants, animals, etc.). For example, an ecosystem rich in species diversity is going to have a...