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food web 食物網。

foodstuff

The instructor will focus on woodland ecosystems and wetland ecosystems and will consider the kinds of investigations that people can do to look key biological concepts ( food webs , energy flows , adaptation , succession , issues of pollution and so on ) using different ecosystems 講師將以林地、 ?地等不同生態系為背景,說明在戶外教學中可應用之調查方法,來探索生物界中如食物鏈、能量循環、生物適應與延續、污染問題等等主題。

The nitrogen fertilization not only improved the nutrients and habitats for arthropods but also altered the dynamics and structure of food web through the changing the aquatic invertebrate community in rice fields 稻田生態系統中施用氮肥不僅可以改進節肢動物的營養條件和生境,而且還可以通過水生無脊椎動物群落的變化改變整個食物鏈的結構和動態。

The diverse phytoplankton species inhabiting the ocean ' s surface waters ? which mainly consist of single - celled cyanobacteria , diatoms and other kinds of algae ? form the base of the marine food web 這表層水域里住了各式各樣的浮游植物(以單細胞的藍綠藻、矽藻和其他藻類為主) ,形成了海洋食物網的基礎。

The food web in soil , with two types of detrital food chain and predator food chain , is defined as a relationship of resource and consumer formed by functional groups of soil organisms 摘要土壤食物網可定義為不同功能土壤生物類群之間形成的消費者資源關系網絡,包括腐食食物鏈和捕食食物鏈。

A 3d coupled physical and biological model was used to examine the marine ecosystem of the bohai sea . the biological model described a simple , nitrate and phosphate based , lower trophic food web system 過糾成邢分,風場足鄭的咨個渤海行和十流; raj的下蟄m素,發皿風場隨時” 。

Birds are positioned at high trophic level within the food web in the ecosystem , and thus any changes within the system can affect the birds in one way or another 鳥類在生態系統中處于較高的營養級,生態系統中住何一個環節的變化都可能對鳥類造成一定的影響。

Soil nematodes are the most abundant metazoan , which have various types of life - history and feeding habits , and play a key role in soil food web 線蟲作為土壤中數量最豐富的后生動物,其生活史和取食類型多樣,在生態系統中發揮著重要作用。

The study significance and status of food web in soil are analyzed and the function of soil food web in soil ecosystem is also stated 簡述了土壤食物網的研究意義及國內外研究現狀,闡明了土壤食物網各結構成分在土壤生態系統中的功能作用。

The position a particular animal occupies in the strata of a food web is determined by its size , the anatomy of its mouthparts and its feeding preferences 一種動物在食物網中所?的位置,是由?的體型、口器構造與食性來決定的。

“ our study provides evidence that the loss of great sharks triggers changes that cascade throughout coastal food webs , “ said baum 波姆表示:我們的研究證明,大型鯊魚的減少,已對海岸地區的食物鏈造成一連串的影響。

Fallen leaves of mangroves are important food for shrimps , crabs and fishes . the leaves also serve vital links in the wetland food web 紅樹的落葉碎屑,是蝦、蟹及魚類的重要食物,并且也是濕地食物網的重要環節。

Whatever happens to zooplankton in the ocean has an immediate impact on the rest of the marine food web 任何影響海中浮游動物的事件,都會立即牽連到海洋食物網其他的部份。

On a larger scale , food webs and ecosystems can be represented as networks of species 在更大的尺度上,食物鏈與生態系統則相當于物種所構成的網絡。

In the sea , at the base of what scientists call the food web , are single - celled plants 在海洋中,科學家所謂的食物鏈網最低層,是單細胞植物。

Food web game - a demonstration of how living things are related to each other . 食物網游戲讓學生了解生物之間的關系。

The complexity of the food web is thus greatly simplified . 這樣,錯綜復雜的食物網就大大簡化了。