A new genus, Thelazacallis Zhang (Homoptera: Drepanosiphidae) and a new species, Thelazacallis ranunculicola Qiao et Zhang from China is described with 9 original figures in the present paper. All type specimens a...A new genus, Thelazacallis Zhang (Homoptera: Drepanosiphidae) and a new species, Thelazacallis ranunculicola Qiao et Zhang from China is described with 9 original figures in the present paper. All type specimens are deposited in the Institute of Zoology, Chinese Academy of Sciences.展开更多
The Black-necked Crane (Grus nigricollis) is an endemic species of the Qinghai-Tibetan Plateau,with its population in Xinjiang largely found in the Kunlun and Altun mountain regions.A survey of the distribution,popula...The Black-necked Crane (Grus nigricollis) is an endemic species of the Qinghai-Tibetan Plateau,with its population in Xinjiang largely found in the Kunlun and Altun mountain regions.A survey of the distribution,population dynamics,flock size and behavior was conducted in Altun Mountain National Natural Reserve from September to November 2011.We investigated the size and distribution of its population in this area with a sample spot survey and by direct counting.We found Black-necked Cranes on the wetlands of Wuzunxiaoer,Yusup Aleksei,Yaziquan,Qimantag,Tula Ranch and elsewhere,where we recorded 126 individual birds of the species in Yixiekepati (37° 15′-37°23′N,90°11′-90°20′E,elevation 3903 m),the largest population we have observed in this area.In the reserve,the population consists of about 180-200 birds.Combined with previous records,we conclude that more than 260 Black-necked Cranes live in Xinjiang.Cranes gathered conspicuously in the middle of October where the highest number of birds appeared on 29 October.All of the cranes had migrated out of this area by 6 November.Time budgets and diurnal behavior rhythms of Blacknecked Cranes were observed in the Yixiekepati wetland at daylight (from 06:00 to 18:00).Foraging was the most prevalent type of behavior during the autumn period,accounting for 58.9％ of the diurnal time budget,followed by preening (13.2％),vigilance (9.5％),walking (8.2％),flying (3.5％),resting (3.4％),chirping (2.7％) and other types of behavior (0.6％).展开更多
系贵州地区妙蝇属Myospila Rondani研究的系列论文之一,记述该属1新种群:双色妙蝇群Myospila bina species group并描述新种群1新种:长妙蝇Myospi lalonga sp.nov.。文中给出了双色妙蝇群的定义,编制了新种群所有已知种的检索表,描述了...系贵州地区妙蝇属Myospila Rondani研究的系列论文之一,记述该属1新种群:双色妙蝇群Myospila bina species group并描述新种群1新种:长妙蝇Myospi lalonga sp.nov.。文中给出了双色妙蝇群的定义,编制了新种群所有已知种的检索表,描述了其详细的形态特征及其与近缘种的鉴别特征。新种的模式标本保存于作者所在单位。展开更多
Caryota obtusa of Arecaceae is a fascinating palm tree native to southwestern China,India,Myanmar,Thailand,Laos and Vietnam.It is an economically important and threatened species and appears as a canopy dominant in so...Caryota obtusa of Arecaceae is a fascinating palm tree native to southwestern China,India,Myanmar,Thailand,Laos and Vietnam.It is an economically important and threatened species and appears as a canopy dominant in some karst areas in Yunnan.We aim to clarify the forest structure,species diversity,population status and regeneration dynamics of C.obtusa in the karst forest ecosystem of Yunnan,China.We established 56 vegetation plots dominated by C.obtusa in 10 counties of southern Yunnan.Based on the plot data,we analyzed the community stratification,floristic composition and C.obtusa’s population structure.We used questionnaires to interview local people and recorded the human activity history in C.obtusa-dominated forests.Caryota obtusa palm forests were distributed on limestone mountain slopes and gullies.There were seven forest community types.The stratification of each community included arborous layer,shrub layer and understory.The communities had rich species composition.For all the plots as a whole of each community type,Shannon–Wiener diversity index of either woody or herbaceous species ranged from 2.1 to 3.8.The diameter at breast height(DBH)-class frequency distribution of C.obtusa was a multimodal type.The regeneration was sporadic and dependent on intermediate natural disturbances.In the current population structure,a number of C.obtusa trees with small DBHs consisted mainly of the forest communities with no or a slight degree of human disturbances.Intensive human activities terribly hindered recruitment of C.obtuse,followed by the medium intensity of human activities.展开更多
基金The work was supported by the National Natural Science Foundation of China!(No. 3970 0 0 1 5)
文摘A new genus, Thelazacallis Zhang (Homoptera: Drepanosiphidae) and a new species, Thelazacallis ranunculicola Qiao et Zhang from China is described with 9 original figures in the present paper. All type specimens are deposited in the Institute of Zoology, Chinese Academy of Sciences.
基金supported by the National Natural Science Foundation of China(No.31272291,30970340)the Hong Kong Bird Watching Society China Conservation Fund and the Management Bureau of Altun Mountain Natural Reserve
文摘The Black-necked Crane (Grus nigricollis) is an endemic species of the Qinghai-Tibetan Plateau,with its population in Xinjiang largely found in the Kunlun and Altun mountain regions.A survey of the distribution,population dynamics,flock size and behavior was conducted in Altun Mountain National Natural Reserve from September to November 2011.We investigated the size and distribution of its population in this area with a sample spot survey and by direct counting.We found Black-necked Cranes on the wetlands of Wuzunxiaoer,Yusup Aleksei,Yaziquan,Qimantag,Tula Ranch and elsewhere,where we recorded 126 individual birds of the species in Yixiekepati (37° 15′-37°23′N,90°11′-90°20′E,elevation 3903 m),the largest population we have observed in this area.In the reserve,the population consists of about 180-200 birds.Combined with previous records,we conclude that more than 260 Black-necked Cranes live in Xinjiang.Cranes gathered conspicuously in the middle of October where the highest number of birds appeared on 29 October.All of the cranes had migrated out of this area by 6 November.Time budgets and diurnal behavior rhythms of Blacknecked Cranes were observed in the Yixiekepati wetland at daylight (from 06:00 to 18:00).Foraging was the most prevalent type of behavior during the autumn period,accounting for 58.9％ of the diurnal time budget,followed by preening (13.2％),vigilance (9.5％),walking (8.2％),flying (3.5％),resting (3.4％),chirping (2.7％) and other types of behavior (0.6％).
基金supported by the Guizhou Provincial Governor Fund of Talented Person for Excellent Science,Technology and Education [(2005)91]
文摘系贵州地区妙蝇属Myospila Rondani研究的系列论文之一,记述该属1新种群:双色妙蝇群Myospila bina species group并描述新种群1新种:长妙蝇Myospi lalonga sp.nov.。文中给出了双色妙蝇群的定义,编制了新种群所有已知种的检索表,描述了其详细的形态特征及其与近缘种的鉴别特征。新种的模式标本保存于作者所在单位。
基金support from Science and Technology Department of Yunnan University,China(2019YNU002).
文摘Caryota obtusa of Arecaceae is a fascinating palm tree native to southwestern China,India,Myanmar,Thailand,Laos and Vietnam.It is an economically important and threatened species and appears as a canopy dominant in some karst areas in Yunnan.We aim to clarify the forest structure,species diversity,population status and regeneration dynamics of C.obtusa in the karst forest ecosystem of Yunnan,China.We established 56 vegetation plots dominated by C.obtusa in 10 counties of southern Yunnan.Based on the plot data,we analyzed the community stratification,floristic composition and C.obtusa’s population structure.We used questionnaires to interview local people and recorded the human activity history in C.obtusa-dominated forests.Caryota obtusa palm forests were distributed on limestone mountain slopes and gullies.There were seven forest community types.The stratification of each community included arborous layer,shrub layer and understory.The communities had rich species composition.For all the plots as a whole of each community type,Shannon–Wiener diversity index of either woody or herbaceous species ranged from 2.1 to 3.8.The diameter at breast height(DBH)-class frequency distribution of C.obtusa was a multimodal type.The regeneration was sporadic and dependent on intermediate natural disturbances.In the current population structure,a number of C.obtusa trees with small DBHs consisted mainly of the forest communities with no or a slight degree of human disturbances.Intensive human activities terribly hindered recruitment of C.obtuse,followed by the medium intensity of human activities.
