| 词汇 | primary-species |
| 释义 | BETA primary speciescollocation in Englishmeanings of primaryand speciesThese words are often used together. Click on the links below to explore the meanings. primary noun[ C ] uk /ˈpraɪ.mə.ri/ us /ˈpraɪ.mer.i/ in the US, an election in which people choose who will represent a particular party in an election for ... See more at primary species noun[ C ] uk /ˈspiː.ʃiːz/ us /ˈspiː.ʃiːz/ a set of animals or plants in which the members have similar characteristics to each other and can breed with ... See more at species Examples of primary speciesprimary species Secondary species occurred mainly or exclusively in successional stands and/or the fire-degraded stand, while primaryspecies were encountered chiefly in mature stands. At the undisturbed rain-forest site, traps were placed under the canopy to catch later secondary/primaryspecies. Secondary species are expressed as a proportion of sites occupied by the primaryspecies. In small gaps, pioneer species showed higher mortality rates and were the primaryspecies that persisted. Closer to the forest border, the richness of primaryspecies is higher. This indicates that even at intermediate and older successional stages, contiguous forest remnants serve an important role as sources of primaryspecies propagules. As the forest matures, primaryspecies outcompete secondary species. There is a balance between the linear relationships for primaryspecies (positive) and secondary species (negative) along the chronosequence. Smallmouth bass, northern pike and walleye are its primaryspecies of fish. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In some cases the new species may outcompete the present ones for nutrients leading to the primaryspecies demise. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Primaryspecies of fish include bass, bluegill, channel catfish, redear, crappie, and northern pike. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Salmon are one of the primaryspecies of the rainforest, spawning in the forest streams. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Due to its abundance, it may be one of the primaryspecies in a fishery. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Three primaryspecies of seagrass are found in the park: turtlegrass, shoal grass and manatee grass. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Typical habitats are mountain screes and glacier forelands, but it will also form old growth forests as the primaryspecies or in mixed forests with deodar, birch, spruce, and fir. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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