昆蟲密度 的英文怎麼說
中文拼音 [kūnchóngmìdù]
昆蟲密度
英文
prevalence-
We have found that densities of insectivorous songbirds can be higher along salmon streams than along waterways that do not support spawning salmon, suggesting that the bird communities respond to the abundance of insects produced by the harvest of salmon carcasses
我們發現有鮭魚的溪流中，食蟲鳴鳥的密度比無法供鮭魚產卵的水道還高，可見鳥類社會對鮭魚殘骸能產生大量昆蟲是有回應的。The great bustard is polyphagia bird, but it feeds mainly on plants. the feeding field habitat selection relate with that whether the grassland burn or not last year. the important factors that determine the feeding field selection are the plant species, vegetative cover score. density hemerrocallis minor and the density of pedacularis sp. on burning grasslandsjthe density of vegetation. insects quanlity. plant species richness and the height of plant are the main factors that determine the feeding field selection on unburning grasslands
大鴇是雜食性鳥類，但以植物性食物為主。對于取食地的選擇往往跟草原上一年是否被火燒過有關。在火燒地，植物種類數、植被蓋度、小黃花菜密度和蒿密度是取食地選擇的重要因素；在非火燒地，植被密度、昆蟲數量、植物物種豐富度及植物高度在大鴇取食地選擇中發揮重要作用。According to basic principle and application experience of black light lamp, the trapping lamps were opened out using the principle of wave, color and taste to trap insect pests imago with the electric networks of frequently vibration and high voltages, it can trap many species and amounts of insect pests, reduce amounts of field ovum, greatly reduce insect pests density, save energy, have low lost, little harm to natural enemy and persons and livestock, have remarkable economic, ecological and social efficiency
摘要借鑒黑光燈的基本原理和應用經驗，再配以頻振高壓電網觸殺的頻振式殺蟲燈，誘集的害蟲種類多、數量大，既大幅度降低了田間落卵量，又顯著減少了蟲口密度；節能省電，成本低；葉昆蟲天敵殺傷力較小，對人畜安全，不污染環境，具有顯著的經濟、生態和社會效益。Bivalve density in east tangsun lake was maximal while that in niushan lake and longgan lake were minimal. insect density in east tangsun lake was maximal but that in huang lake was minimal, and the differences of them among three lakes were distinct ( p 0. 05 ). zoobenthic density in east tangsun lake was maximal but that in huang lake was minimal, and the difference in two lakes was distinct ( p < 0. 05 )
在密度方面，寡毛類以龍感湖最高，牛山湖最低，且兩湖差異顯著（ p 0 . 05 ） ；牛山湖螺類明顯比其它三個湖湖泊高（ p 0 . 05 ） ；雙殼類以東湯孫湖最高，牛山湖和龍感湖最低；水生昆蟲以東湯孫湖最高，黃湖最低，且東湯孫湖與龍感湖和黃湖差界顯著（ p 0 . 05 ） ；底棲動物總密度以東湯孫湖最高，黃湖最低，且兩湖差異顯著（ p 0 . 05 ） 。The habitats for moving about of great bustard are hillocks on grassland. and they prefer to move about on the valleies of grassland during their breeding season. there are 4 main vegetation characteristic factors that determine the nest - site selection, the factors are the vegetation canopy, vegetation density, food and the height of plant. the great bustard selects the areas with higher vegetation canopy, vegetation density, plant species and insect quantity. most height of plants are below 20cm, but we also found they move about in tall grass occasionally
大鴇繁殖期活動棲息地為波狀起伏的草原漫崗地，多喜歡活動在海拔為170 300m左右，四周高、中間凹的漫崗凹地中。決定大鴇繁殖期棲息地選擇的主要植被特徵因子共有4個，分別為植被蓋度因子、植被密度因子、食物因子和植物高度因子。大鴇多選擇在植被蓋度和密度較大、植物種類和昆蟲數量較多及多數植物高度在20cm以下，但又不乏高草的地方活動。Maximum density of moths typically occurred below 500 m, and strong layers were often observed at about 200 m above ground level in airflows which would carry the moths towards the south
最大蛾類密度通常出現在500m以下，強的昆蟲層出現在地上200m左右高度的氣流中，這里氣流可將昆蟲帶到南方。分享友人