辽宁革螨的生态地理分布

辽宁省已知的革螨46种,分属于5科19属.本文依据四个不同地理景观区内革螨的优势种、常见种和罕见种,对其生态地理分布作了讨论.(1)辽西低山丘陵及沿海平原区:本区共有革螨20种,其中仓鼠真厉螨、格氏血厉螨为优势种;塔山巨刺螨、长毛鞘厉螨为罕见种.(2)辽东山地及半岛丘陵区:本区共有革螨22种.半岛丘陵革螨优势种为仓鼠真厉螨、格氏血厉螨;辽东山地革螨优势种为耶氏厉螨与东方真厉螨.本区罕见种为赛氏血革螨、达呼尔血革螨、大连肪刺螨、三角血厉螨等.(3)辽河平原区:本区共有革螨20种.优势种为耶氏厉螨与厩真厉螨;乌苏里土厉螨为罕见种.(4)努鲁儿虎山脉北麓黄土丘陵台地及西辽河沙地区:本区共有革螨26种.优势种为东北血革螨、仓鼠真厉螨及格氏血厉螨.巨腹赫刺螨、鼬赫刺螨、拟小赫刺螨、半漠血厉螨、乌苏地厉螨、北野血革螨、楠本血革螨等为罕见种.

THE ECOGEOGRAPHICAL DISTRIBUTION OF GAMASIDES IN LIAONING PROVINCE

An investigation on gamasides in Liaoning Province revealed that there are 46 species belonging to 5 families and 19 genera.Based on the characteristics of the topography and vegetation covering,Liaoning may be divided into four rigions and the gamasides found in these regions can be enumerated as follows:1.Liaoxi low mountainous region with hill and coastal plain:There are 20 species of gamasides in the region.Eulaelafs cricetuli and Haemolaelaps glasgowi are dominantes.Ma-cronyssus tashanensis and Coleolaelaps longisetatus are rare species.2.Liaodong mountainous region and peninsular hill:There are 22 species of gamasides in the region Etdaelaps cricetuli and Haemolaelaps glasgo-wi are dominantes in the peninsular hill region.Laelaps jettmari,Eulaelaps dongfangis are dominantes in the Liaodon mountainous region.Haemogamasus serdjukovae,Haemogamasus dauricus,Steatonyssus dalinensis and Haemolaelaps triangularis are rare species.3.Liao-River plain:There are 20 species of gamasides in the region.Laelaps jeitmari and Eulaelaps stabularis are dominantes.Ololaelaps ussuriensis is rare species.4.Northern foot-region of Nuluerhu mountain and western Liao-river sandy:There are 26 species of gamasides in the region.Haemogamasus mandschuricus,Eulaelaps cricetuli and Haemolaelaps glasgowi are dominantes.Hirstionyssus ventricosus Htrstionyssus mustelae,Hirstionyssus sub-minor,Haemolaelaps semidesertus,Dipolaelaps ubsunaris,Haemo-gamasus kitanoi and Haemogamasus kusumotoi are rare species.