词汇 | oviposition |
释义 | BETA Examples of ovipositionoviposition isn’t in the Cambridge Dictionary yet. You can help! The time spent on parasitization consisted of the time spent on oviposition and the time in between, searching for new hosts. The females had no oviposition experience before the bioassay. For the oviposition experiments, blackflies were allowed to bloodfeed until fully engorged. The time from oviposition to adult eclosion was shorter in the cell line diet (290 h) than in the haemolymph diet (336 h). These figures give no indication of the possible total oviposition of the species, since the females were not continuously supplied with hosts. It has been proposed that polyphagous insects experience a difficulty in decision-making when selecting food and oviposition sites in the presence of different host plants. Oviposition height seemed to increase with increasing maximal vegetation height of sites. This suggests there is some upper threshold of aphid density at which maximum oviposition occurs. Oviposition height was the only factor which significantly could explain winter mortality. Additionally, 11 similar semi-arid grassland sites in the same study area were selected for an investigation of oviposition height and vegetation structure at different sites. Mean oviposition height per site (70.2+4.9 cm) was significantly higher than mean vegetation height (28.4+2.4 cm). We had observed on occasions that rapid decomposition occurred in larvae which had been paralysed by the parasite preparatory to oviposition thereon in breeding compartments. Moreover, on most occasions, the variance was greater than the mean indicating a contagious distribution of oviposition. Similar analyses were conducted on the log-transformed estimates of the daily oviposition rate (ln(egg masses per animal) +1). Besides the above explanation, several other theories for male rarity at oviposition sites are currently being investigated. Three mo after fruit-fall, therefore, most endocarps exposed to oviposition contain only larvae and no endosperm. |
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