| 词汇 | example_english_alternative-prey |
| 释义 | alternative preycollocation in Englishmeanings of alternativeand preyThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with prey. alternative adjective uk /ɒlˈtɜː.nə.tɪv/ us /ɑːlˈtɝː.nə.t̬ɪv/ An alternative plan or method is one that you can use if you do not want to use ... See more at alternative prey noun[U] uk /preɪ/ us /preɪ/ an animal that is hunted and killed for food by ... See more at prey Examples of alternative preyThese 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. The availability of alternativeprey may have affected the quantities of slug consumed, but clearly did not prevent the beetles from reducing slug populations. Such systems depend upon temporal separation between periods of maximum alternativeprey availability and periods of pest abundance. At the same time we tested the hypothesis that alternativeprey, and prey diversity, would have a positive effect upon carabid fitness. The mean individual slug weights were greater in treatments with alternativeprey than where no alternativeprey were provided to the carabids. Numbers of alternativeprey introduced to each plot are given in parentheses. The hypothesis that access to alternativeprey can lead to reduced pest suppression under semi-field conditions was tested. Significantly fewer slugs survived where no alternativeprey were provided. These results suggest that pests may survive and reproduce more rapidly in patches where predators have access to alternativeprey. Alternativeprey strongly affected carabid fitness in terms of biomass and egg load. Both interpretations could be true under different circumstances, but availability of alternative prey is rarely, if ever, considered as the primary factor driving the observed dynamics. In addition, we tested the hypothesis that a higher diversity of alternativeprey would reduce still further the ability of the beetles to limit slug numbers. Growth in beetle weight, and crop biomass, may have been affected by the presence of alternativeprey. May the goals of encouraging alternativeprey and biodiversity, and seeking biocontrol of pests, sometimes conflict? May not the fittest predators, replete with alternativeprey, be the least effective at controlling pests? The most probable scenario is that alternativeprey help to balance the nutritional requirements of the spiders, enabling them to exploit aphids as a food resource while maintaining predator fitness. Within year, therefore, reproductive numerical responses will not have time to operate, and spatial numerical responses will be limited, restricting responses by the predators to alternativeprey to functional responses. The effects of alternativeprey were taxon-specific. However, in theory, this effect may be negated if the availability of a greater abundance and diversity of alternativeprey diverts predators away from feeding on pests. This apparently counterintuitive result may be due to the snakes utilizing some alternativeprey, the abundance and spatial distribution of which was not examined in this study (fish). Locally, alternativeprey animals (usually comprising less than 20% of prey intake) include hares, moles, shrews, weasels, thrushes, grouse, grey jays, small hawks and ducks. 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. Want to learn more? Go to the definition of alternative Go to the definition of prey See other collocations with prey |
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