predator pressure是捕食壓力.也就是說同種動(dòng)物數(shù)量越大,因?yàn)槭澄锖愣?他們之間的競爭壓力會(huì)逐漸增大,反而會(huì)影響種群數(shù)量.
翻譯為：
在對(duì)亞利桑那森林24種物種進(jìn)行調(diào)查并分析數(shù)據(jù)之后,證明了他的假設(shè)：由于捕食壓力,動(dòng)物求食的動(dòng)作或者聲音越發(fā)的進(jìn)化得難以監(jiān)測和定位.more evidence that predator pressure favors the evolution of begging calls that are hard to detect and pinpoint. 這一部分的句子結(jié)構(gòu)能不能幫我分析下？看不懂。謝謝首先是這部分和data....from an Arizona forest是并列的。that后面的從句修飾more evidence，也就是說后面是說一個(gè)什么樣的"more evidence"。that后面的話可以單獨(dú)提出來分析predator pressure .. begging calls ==> 是第一部分that ... detect and pinpoint 為第二部分第二部分中第一個(gè)that同上面一樣，也是修飾名詞的，這部分是形容begging calls are hard to detect and pinpoint。也就是說原句可以分拆成以下單獨(dú)句子：his prediction was supported by data collected in one survey of 24 species from an Arizona forest.his prediction was supported by more evidence.predator pressure favors the evolution of begging calls.begging calls are hard to detect and pinpoint.