本文關(guān)鍵詞：云南省微紅纖恙螨分布規(guī)律的進(jìn)一步研究　出處：《中國(guó)病原生物學(xué)雜志》2017年10期 　論文類(lèi)型：期刊論文

  更多相關(guān)文章： 恙螨 微紅纖恙螨 恙蟲(chóng)病媒介 分布規(guī)律

【摘要】：目的以往研究的基礎(chǔ)上進(jìn)一步探討云南省微紅纖恙螨的分布規(guī)律。方法根據(jù)2001-2015年對(duì)云南省34個(gè)調(diào)查地點(diǎn)的現(xiàn)場(chǎng)調(diào)查資料,統(tǒng)計(jì)和比較微紅纖恙螨在不同地域、地理景觀、生境和宿主體表的分布比例及感染狀況(包括感染率、平均多度和感染度),比較該螨在不同性別宿主感染的差異性。用協(xié)調(diào)系數(shù)測(cè)定微紅纖恙螨與地里纖恙螨的種間關(guān)系,用聚塊指數(shù)(m*/m)測(cè)定微紅纖恙螨在宿主動(dòng)物不同個(gè)體間的空間分布。結(jié)果共調(diào)查的34個(gè)點(diǎn),僅8個(gè)調(diào)查點(diǎn)采集到微紅纖恙螨706只,占全部恙螨的0.55%(705/127460),89.08%的微紅纖恙螨采自位于云南省南部的西雙版納地區(qū),特別是位于江河沿岸的低緯度、低海拔、氣候炎熱和潮濕的河谷壩區(qū)。705只微紅纖恙螨宿主分布為3目5科7屬8種,宿主特異性較低,主要宿主為黃胸鼠等。該螨在宿主的不同個(gè)體間分布不均勻,呈聚集性。該螨與其近緣種地里纖恙螨之間存在一定的正協(xié)調(diào)關(guān)系(V=0.57,P0.01)。結(jié)論云南省有微紅纖恙螨的分布,但不是主要螨種。該恙螨主要分布在炎熱、潮濕的低緯度、低海拔河谷壩區(qū)室外生境。其宿主特異性低,主要傾向于寄生在黃胸鼠等宿主,且呈聚集性。
[Abstract]:Objective to further explore the distribution of chigger mites in Yunnan Province on the basis of previous studies. Methods based on the field investigation data of 34 investigation sites in Yunnan Province from 2001 to 2015. The distribution and infection status of chigger mites in different regions, geographical landscape, habitat and host surface (including infection rate, average abundance and infection degree) were analyzed and compared. To compare the difference of the infection of the mites in different sex hosts, and to determine the interspecific relationship between the mites of red fir chigger mites and that of chigger mites by using the coordination coefficient. The spatial distribution of chigger mites in different individuals of host animals was determined by means of mass index / mics. Results 706 chigger mites were collected from only 8 of the 34 sites investigated. 0.55% of all chigger mites were collected from Xishuangbanna area in the south of Yunnan Province, especially in the low latitude along the river bank. In the valley dam area of low altitude, hot and humid climate. 705 mites were distributed in 3 orders, 5 families, 7 genera and 8 species, and the host specificity was relatively low. The main host was Rattus flavipectus et al. The mites distributed unevenly among the host individuals and showed aggregation. There was a positive coordination relationship between the mites and chigger mites in their related species. Conclusion there are some species of chigger mites in Yunnan Province, but they are not the main species. The mites are mainly distributed in hot, humid low latitude and outdoor habitat in low elevation valley dam area. The host specificity is low. It is mainly parasitic in the host, such as yellow thorax mice, and it is clustered.
【作者單位】： 大理大學(xué)病原與媒介生物研究所云南省自然疫源性疾病防控技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(No.81460313,81672055)
【分類(lèi)號(hào)】：R384.4
【正文快照】： ***恙螨是一個(gè)節(jié)肢動(dòng)物類(lèi)群,全球已知恙螨超過(guò)3 000種,我國(guó)超過(guò)400種[1-4]。恙螨的生活史復(fù)雜,僅幼蟲(chóng)階段營(yíng)體表寄生生活,目前對(duì)恙螨的研究主要集中在幼蟲(chóng)階段[1,3-4]。恙螨是恙蟲(chóng)病的唯一傳播媒介,恙蟲(chóng)病是由恙蟲(chóng)東方體(即:恙蟲(chóng)立克次體)引起的急性自然疫源性疾病,通過(guò)恙螨幼

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