| 词汇 | example_english_fruit-fly |
| 释义 | Examples of fruit flyThese 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. Thus, some proportion of a fruitfly population may not visit orchids if other plant species are available. The sterile insect technique has demonstrated its ability to reduce fruitfly populations, and consequently reduce damage to fruit. The issue of concern is how accurately this reflects fruitfly visitation to orchids? Notably, 34 of the 43 plants hosting more than three fruitfly species were cultivated species. The results obtained will be used for optimizing laboratory rearing procedures and for constructing computer simulation models to predict fruitfly population dynamics. Research with fruitfly larvae found that nitric oxide plays a role in behaviour modulation in response to hypoxia. All varieties are susceptible to the olive fruitfly. Analysis of flies bearing pollinaria, therefore, offers an indirect means of assessing the occurrence of fruitfly visitation to orchids. It is therefore vital that quarantine workers can quickly and accurately identify any intercepted fruitfly species. As a result, quarantine restrictions have been imposed by many countries to limit further spread of fruitfly pests around the world. Evaluating the potential competitive risk of new fruitfly parasitoids is prudent and will add to our understanding of the ecological factors influencing host selection. The period gene in two species of tephritid fruitfly differentiated by mating behaviour. Further, fruitfly assemblages from individual rain-forest hosts were also species poor, as they included up to three species. Traps were hung, wherever possible, in fruitfly host trees at approximately 1.8 m above the ground. The potential for future fruitfly invasions is of great concern to regulatory agencies and domestic growers. For no individual region or country do we have a comprehensive assessment of how many of the local fruitfly species may visit orchids. These new parasitoid collections provided an opportunity hitherto unavailable to examine the taxonomy, distribution and host associations of the regional fruitfly parasitoid fauna. In conclusion, definition of fruitfly population subdivisions may greatly facilitate management. What demographers can learn from fruitfly actuarial models and biology. Laboratory-reared flies were used instead of wild flies since this allowed the studies on the three fruitfly species to run concurrently. There was no significant difference in frequency of mating among the three fruitfly species. There, parasitoids of olive fruitfly in wild olives serve as a population reservoir for spread into commercial olive orchards. Likewise, fruitfly assemblages from 19 plant species representing different families were divided into 14 compartments, including 12 represented by single plant species. In suggesting this view, we do not wish to imply that we consider every individual fruitfly visits orchids. Plant species hosted 0-3 fruitfly species at median (1-3 quartile) densities of 1 (0-17) fruit flies per 100 fruits. Extensively sampled hosts, including 11 plant species with 10-55 kg of fruits sampled, hosted 1-3 fruitfly species. This food web structure minimizes indirect interactions among plant species via shared herbivores, as well as interactions among fruitfly species. Process analysis and failure avoidance in fruitfly programs. Only 34 (8%) from the 435 pairs of plant species which could be generated from the 30 plant species hosting fruit flies shared at least one fruitfly species. Because of its worldwide distribution, its ability to tolerate cooler climates and its wide range of hosts, it is considered the most economically important fruitfly species. The number of species in fruitfly assemblages from plant species sampled as > 10 kg of fruits (black bars) and 1-10 kg of fruits (white bars). Their inclusion in the calculation of local species richness leads to a revised estimate of the local pool of 168 + 36, rather than 152 + 32 fruitfly species. Operations and systems analysis in fruitfly management. This last question is of particular economic importance since fruit export markets are acutely sensitive to the presence of fruitfly pests, demanding accurate assessment of potential problem species. It says that earlier estimates of the genetic hazard of radiation in man were based mainly on mutations in the fruitfly. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 That was the embargo placed upon the importation of cherries from abroad, and with them the importation of the cherry fruitfly. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Some animals like the fruitfly do not have any cytoplasmic intermediate filaments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The human brain has been estimated to contain approximately 100 trillion synapses; even the brain of a fruitfly contains several million. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is limited to birds, arthropods (including 16 species of fruitfly, moths, butterflies, arachnids, etc.), and a single species of bat. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In 1997, homologs were identified in more complex organisms including the fruitfly, human and mouse. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. With a dynamically scaled model of a fruitfly, these predicted forces later were confirmed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They include wind tunnel experiments of a tethered locust and a tethered fly, and free hovering flight of a fruitfly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, they are not exceptionally radiation-resistant compared to other insects, such as the fruitfly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It can be used as a replacement of the fruitfly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, its effectiveness against the olive fruitfly has not yet been sufficiently tested. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is to stop the fruitfly from invading crops and plantations which could have a devastating effect on the economy. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He examined the role of the hormone ecdysone in the development of the fruitfly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One of a class of genes involved in fruitfly embryonic development, called hedgehog genes, has been named sonic hedgehog after the character. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Even in animals, cytokinesis and mitosis may occur independently, for instance during certain stages of fruitfly embryonic development. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The effects of aging on fruitfly livers and plant tissues with grafted cancerous growths were also studied. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The species is known generally as the common fruitfly or vinegar fly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. True flies are written as two words, such as crane fly, robber fly, bee fly, moth fly, and fruitfly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The study reports that drosophila melanogaster (fruitfly), which is ordinarily attracted to acetophenone, spontaneously dislikes deuterated acetophenone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the honey bee and fruitfly, octopamine has a major role in learning and memory. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Dysgenic mutations have been studied in animals such as the mouse and the fruitfly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some species of fruitfly produce the largest known spermatozoon found in nature. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The fruitfly is widely studied in part because its genetics is very well understood and easily manipulated. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The brain of a fruitfly contains several million synapses, compared to at least 100 trillion in the human brain. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It does not however hook its mouthparts into its hinder end to achieve an efficient leap such as some fruitfly and carrion-fly larvae do. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The male papaya fruitfly looks like the female with the differences of a hairy abdomen and no ovipositor. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Secondarily qualitative impairments of varying severity derive from the olive fruitfly attacks due to the arrival of mold through the eclosions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It includes a number of the most familiar flies, such as the housefly, the fruitfly and the blow fly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This fruitfly is mostly composed of post-mitotic cells, has a very short lifespan, and shows gradual aging. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This strategy works not only in nematodes, but also in other species, including fruit flies, mammals and plants. The low d ensities can limit the impact of fruit flies on their host plants. The median (1-3 quartile) was respectively 1 (0-12) fruit flies per kg fruit and 1 (0-17) fruit flies per 100 fruits. Only 30 from the 53 studied plant species were colonized by fruit flies. Regression analysis yielded a significant inverse relationship between the numbers of fruit flies per kg of fruits and elevation (fig. 1). In terms of economic importance the present study included many fruit flies that are pests or have the potential to become invasive species. At the organ level, the nervous system is composed of brain regions, such as the hippocampus in mammals or the mushroom bodies of the fruitfly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Alternatively, these metabolites and spiroacetals may both be components of the pheromone blend of fruit flies. For example, a rabbit (mature after 8 months) can produce 1030 offspring per year, and a fruitfly (mature after 1014 days) can produce up to 900 offspring per year. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Such a search is relatively easy in short-lived animals such as nematodes and fruit flies, but more difficult in mammals. In the last few years, evidence has come to light suggesting a biological use of these chemicals by fruit flies. The species accumulation curve suggests that the trapping of fruit flies was indeed nearly complete. Fruit flies were rare and species poor on rain-forest plants and at least some of the apparently suitable hosts were not colonized at all. It is becoming more obvious, therefore, that natural sources of these chemicals are important, but to date largely neglected, components of the fruit fly's habitat. In fact, they can manage the attacks of the olive fruitfly when its population is contained, but less so in the case of heavy infestations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Gene-based selection is studied in bacteria and fruit flies as exemplars of a process assumed to account for all species. With the exception of bacteria and fruit flies, evolution among the animals is pretty slow. Such a high proportion indicates low beta-diversity of fruit flies. Beetle seedpredators were the most specialized guild, followed by fruit flies and leaf-chewing caterpillars. However, because it was a relatively superficial pathway rather than one shared widely by diverse organisms, little was known about the biochemical details of fruitfly eye pigment metabolism. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. But the principle's basic premises (of random mutation and natural selection) are undeniable and have been demonstrated in laboratory experiments with fruit flies and the like. Area-wide management of fruit flies and other major insect pests. Fruit flies: their biology, natural enemies and control. From our observations it appears that proteins are less available in the flies' environment and their deficiency in the natural diet of fruit flies might limit their biological potential. This designation could permit export of mangoes without strict quarantine restrictions if is confirmed that other species of fruit flies do not occur in these localities. If the genes that help postpone ageing in parasitic worms or fruit flies can also control ageing mechanisms in humans, then the postponement of human ageing should be relatively easy. Losses are due to direct feeding damage and loss of export market opportunities through quarantine restrictions imposed by importing countries to avoid entry and establishment of unwanted fruit flies. 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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