| 词汇 | pollinator |
| 释义 | pollinator noun[ C ] uk /ˈpɒl.ə.neɪ.tər/ us /ˈpɑː.lə.neɪ.t̬ɚ/ something, such as an insect, that carries pollen from one plant or part of a plant to another: 传粉昆虫;传粉媒介 These chemicals are known to be highly toxic to honeybees and other pollinators.众所周知，这些化学品对蜜蜂和其他传粉昆虫有剧毒。 Plant reproduction anther asexual reproduction asexuality asexually barrenness breeder chasmogamous endosperm germinate palynology pistillate placentation pollinate pollination self-incompatible self-pollination sexlessly siltation sporangium stamen You can also find related words, phrases, and synonyms in the topics: Insect names Examples of pollinatorpollinator Environmental conditions were observed to strongly influence the honey bee efficiency as pollinator and seed-set varied considerably from year to year. In contrast, few dioecious fig pollinators were caught and the turnover of species between years was substantial. These patterns are regarded as reflecting adaptations to minimize competition for pollinators. In these cases, the bees may be opportunistic visitors or facultative pollinators. Predators of vertebrates are absent and densities of pollinators and seed dispersers are substantially reduced in comparison to the nearby mainland. We compared the efficiency of foraging habit of one of the major pollinators in effecting pollination. There is no sign of nectar or any pollinator reward other than pollen in male flowers. Flowermorph-specific correlation suggests that natural selection by pollinators has moulded trait covariance among floral traits. Later in the life cycle, pollen is vectored by a new generation of pollinators reared in gall figs. Pollinator numbers were transformed to yield a count of individuals, per km of transect walked for each sampling occasion and year total. It deals with the major bee-pollinated crops of temperate regions, and gives correspondingly wide geographical coverage of the major bee species managed as pollinators. Two other factors contributing to the pollinating capacity of a pollinator species are flower fidelity and foraging activity thresholds. When receptive, the stigmas release a species-specific fragrance, and the bracts in the neck of the inflorescence loosen, allowing the pollinators to enter. Non-equivalent limiting factors may be biotic, such as pollinators and herbivores, or abiotic, such as available nutrients and water. Contradictions and inaccuracies abound, some insignificant, some important, some just irritating (pollenizer rather than pollinator). 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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