scholarly journals Infestation and distribution of chigger mites on Brown rat (Rattus norvegicus) in Yunnan Province, Southwest China

2021 ◽  
Vol 38 (1) ◽  
pp. 111-121
Author(s):  
Ding F.
Keyword(s):  
Rattus Norvegicus ◽  
Yunnan Province ◽  
Southwest China ◽  
Brown Rat

Ecological analysis of gamasid mites on the body surface of Norway rats (Rattus norvegicus) in Yunnan Province, Southwest China

Biologia ◽  
2019 ◽  
Vol 75 (9) ◽  
pp. 1325-1336 ◽  
Author(s):  
Zhe Liu ◽  
Xian-Guo Guo ◽  
Rong Fan ◽  
Cheng-Fu Zhao ◽  
Ke-Yu Mao ◽  
...  
Keyword(s):  
Body Surface ◽  
Rattus Norvegicus ◽  
Yunnan Province ◽  
Southwest China ◽  
The Body ◽  
Ecological Analysis ◽  
Gamasid Mites ◽  
Norway Rats

scholarly journals Genetic diversity and population structure of rice stripe virus in China

2009 ◽  
Vol 90 (4) ◽  
pp. 1025-1034 ◽  
Author(s):  
Tai-Yun Wei ◽  
Jin-Guang Yang ◽  
Fu-Long Liao ◽  
Fang-Luan Gao ◽  
Lian-Ming Lu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Yunnan Province ◽  
Southwest China ◽  
Eastern China ◽  
Rice Stripe Virus ◽  
Genetic Distances ◽  
Geographical Regions ◽  
Strong Negative Selection ◽  
Recent Outbreak

Rice stripe virus (RSV) is one of the most economically important pathogens of rice and is repeatedly epidemic in China, Japan and Korea. The most recent outbreak of RSV in eastern China in 2000 caused significant losses and raised serious concerns. In this paper, we provide a genotyping profile of RSV field isolates and describe the population structure of RSV in China, based on the nucleotide sequences of isolates collected from different geographical regions during 1997–2004. RSV isolates could be divided into two or three subtypes, depending on which gene was analysed. The genetic distances between subtypes range from 0.050 to 0.067. The population from eastern China is composed only of subtype I/IB isolates. In contrast, the population from Yunnan province (southwest China) is composed mainly of subtype II isolates, but also contains a small proportion of subtype I/IB isolates and subtype IA isolates. However, subpopulations collected from different districts in eastern China or Yunnan province are not genetically differentiated and show frequent gene flow. RSV genes were found to be under strong negative selection. Our data suggest that the most recent outbreak of RSV in eastern China was not due to the invasion of new RSV subtype(s). The evolutionary processes contributing to the observed genetic diversity and population structure are discussed.

scholarly journals Acronema crassifolium sp. nov. (Apiaceae), a distinct new species from Yunnan, southwest China

Phytotaxa ◽  
2013 ◽  
Vol 87 (3) ◽  
pp. 39
Author(s):  
HUAN-CHONG WANG ◽  
XIN-MAO ZHOU ◽  
HANG SUN ◽  
YUE-HUA WANG
Keyword(s):  
New Species ◽  
Pollen Morphology ◽  
Yunnan Province ◽  
Southwest China

Acronema crassifolium, a distinct new species endemic to Yunnan province, China, is described and illustrated. It is characterized by its thickly papery, ternate, abaxially dark purple leaves, terminal umbels with 8–13 rays, and absent calyx teeth. The pollen morphology of the new species is also described in this study.

A review of the non-lyctine powder-post beetles of Yunnan (China) with a new genus and new species (Coleoptera: Bostrichidae)

Zootaxa ◽  
2022 ◽  
Vol 5091 (4) ◽  
pp. 501-545
Author(s):  
YI-FENG ZHANG ◽  
LING-ZENG MENG ◽  
ROGER A. BEAVER
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Yunnan Province ◽  
New Genus ◽  
Southwest China ◽  
Geological History ◽  
Yunnan Region ◽  
Palearctic Region ◽  
History Of ◽  
First Time

The powder post beetles (Coleoptera: Bostrichidae) (except Lyctinae) of Yunnan Province in Southwest China are reviewed for the first time. Keys to twenty-six genera and fifty-two species from the Yunnan region are provided. One new genus and seven new species are described: Dinoderus (Dinoderastes) hongheensis sp. nov., Dinoderus (Dinoderastes) nanxiheensis sp. nov., Gracilenta yingjiangensis gen. nov., sp. nov., Calonistes vittatus sp. nov., Calophagus colombiana sp. nov., Xylodrypta guochuanii sp. nov. and Xylodrypta zhenghei sp. nov.. Fourteen species are recorded in China for the first time. The bostrichid fauna of Yunnan is compared with those of the neighbouring bio-geographically related Southeast Asian and Himalayan regions. The fauna has a close affinity with that of tropical Southeast Asia and a much weaker relationship with the Palearctic region. The differences with the Himalayas may reflect the separate evolutionary and complex geological history of the two areas.

scholarly journals Human paleodiet and animal utilization strategies during the Bronze Age in northwest Yunnan Province, southwest China

PLoS ONE ◽  
2017 ◽  
Vol 12 (5) ◽  
pp. e0177867 ◽  
Author(s):  
Lele Ren ◽  
Xin Li ◽  
Lihong Kang ◽  
Katherine Brunson ◽  
Honggao Liu ◽  
...  
Keyword(s):  
Bronze Age ◽  
Yunnan Province ◽  
Southwest China ◽  
Northwest Yunnan ◽  
Animal Utilization ◽  
The Bronze Age

scholarly journals Damage to wheat by enclosed populations of Rattus norvegicus

1951 ◽  
Vol 49 (1) ◽  
pp. 22-25 ◽  
Author(s):  
S. A. Barnett
Keyword(s):  
Rattus Norvegicus ◽  
Monetary Loss ◽  
Brown Rat ◽  
The Common

Small enclosed populations of the common brown rat (ten to twenty-six rats), each with access to one ton of sacked wheat for 12–28 weeks, caused a loss in weight of 4·4% of the wheat. 70·4% of the wheat was fouled and had to be cleaned before use. The main monetary loss was due to damage to sacks. Total monetary loss was 18·23% of the original value of the wheat and sacks.

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