基于MaxEnt模型的兩種捕食性盲蝽潛在分布區(qū)及其適生性分析
發(fā)布時間:2018-10-12 07:24
【摘要】:【目的】為了預測和分析稻飛虱的兩種重要捕食性天敵中華淡翅盲蝽Tytthus chinensis和黑肩綠盲蝽Cyrtorhinus lividipennis的潛在分布區(qū),研究氣候環(huán)境因素對其潛在分布的影響!痉椒ā縈ax Ent是以最大熵理論為基礎(chǔ)的預測物種地理分布的模型,本文運用Max Ent模型,根據(jù)這兩種盲蝽的已知分布區(qū)及其氣候環(huán)境影響因素,推測這兩種盲蝽的適生性分布及氣候環(huán)境因素的影響。【結(jié)果】中華淡翅盲蝽主要適宜分布區(qū)域為中國秦嶺-淮河以南地區(qū)、東北亞的朝鮮半島和日本、東南亞以及菲律賓和印度尼西亞群島部分地區(qū),即東洋區(qū)和大洋區(qū)北部群島;黑肩綠盲蝽適宜分布區(qū)比中華淡翅盲蝽更廣,可達山東、河北以南,陜西、云南、貴州以東的中國大部地區(qū),海外除中華淡翅盲蝽分布區(qū)外,也可分布于南美亞馬遜雨林地區(qū)。研究還發(fā)現(xiàn),最熱季度降雨量、平均日溫差對中華淡翅盲蝽、黑肩綠盲蝽適宜性分布有重要影響;夏季降雨量大于500 mm、平均日溫差低于10℃,有利于這兩種盲蝽的分布!窘Y(jié)論】兩種捕食性盲蝽適宜生境主要受最熱季度降雨量、平均日溫差影響。本研究為發(fā)揮這兩種捕食性盲蝽在害蟲生物防治中的作用提供了重要依據(jù)。
[Abstract]:[objective] to predict and analyze the potential distribution areas of Tytthus chinensis and Cyrtorhinus lividipennis, two important predatory natural enemies of rice planthopper. [methods] Max Ent is a model based on maximum entropy theory to predict the geographical distribution of species. The Max Ent model is used in this paper. According to the known distribution of the two species and their climatic and environmental factors, [results] the main suitable distribution areas of these two species were the south of Qinling and Huaihe River in China, the Korean Peninsula in Northeast Asia and Japan. Southeast Asia as well as parts of the Philippines and Indonesia, that is, the Oriental region and the northern islands of the Oceanic region; the suitable distribution area of the black-shouldered green bug is wider than that of the Chinese alpine bug, reaching to Shandong, south of Hebei, Shaanxi, Yunnan, Most parts of China to the east of Guizhou can also be found in the Amazon rainforest of South America. It was also found that the hot seasonal rainfall and the average daily temperature difference had important effects on the distribution of the suitability of the two species, and the average daily temperature difference of mm, in summer was lower than 10 鈩,
本文編號:2265275
[Abstract]:[objective] to predict and analyze the potential distribution areas of Tytthus chinensis and Cyrtorhinus lividipennis, two important predatory natural enemies of rice planthopper. [methods] Max Ent is a model based on maximum entropy theory to predict the geographical distribution of species. The Max Ent model is used in this paper. According to the known distribution of the two species and their climatic and environmental factors, [results] the main suitable distribution areas of these two species were the south of Qinling and Huaihe River in China, the Korean Peninsula in Northeast Asia and Japan. Southeast Asia as well as parts of the Philippines and Indonesia, that is, the Oriental region and the northern islands of the Oceanic region; the suitable distribution area of the black-shouldered green bug is wider than that of the Chinese alpine bug, reaching to Shandong, south of Hebei, Shaanxi, Yunnan, Most parts of China to the east of Guizhou can also be found in the Amazon rainforest of South America. It was also found that the hot seasonal rainfall and the average daily temperature difference had important effects on the distribution of the suitability of the two species, and the average daily temperature difference of mm, in summer was lower than 10 鈩,
本文編號:2265275
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