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Diversity of planthoppers associated with the winter rice agroecosystems in southern Yunnan, China.

Hu SJ, Fu DY, Liu XJ, Zhao T, Han ZL, Lü JP, Wan HL, Ye H - J. Insect Sci. (2012)

Bottom Line: A field survey of the overwintering planthoppers (Hemiptera: Delphacidae) associated with the rice agroecosystems in southern Yunnan was carried out during January-February in 2010 and 2011. 22 species of planthoppers were collected and identified, with one species representing the subfamily Stenocraninae and the other 21 species in Delphacinae.Planthopper species diversity showed a reductive trend from south to north and reflected a gradient of more severe winter temperatures.In addition, planthopper diversity was influenced by smaller-scale differences in terrain and habitat, as evidenced by greater diversity in the valleys and low-altitude areas as compared to mid-mountain and Karst plain areas.

View Article: PubMed Central - PubMed

Affiliation: Laboratory of Biological Invasion and Transboundary Ecosecurity, Yunnan University, Kunming, 650091, China. shaojihu@hotmail.com

ABSTRACT
A field survey of the overwintering planthoppers (Hemiptera: Delphacidae) associated with the rice agroecosystems in southern Yunnan was carried out during January-February in 2010 and 2011. 22 species of planthoppers were collected and identified, with one species representing the subfamily Stenocraninae and the other 21 species in Delphacinae. Nycheuma cognatum (Muir), Peregrinus maidis (Ashmead), and Pseudosogata vatrenus (Fennah) were new provincial records for Yunnan. The pest species, Sogatella furcifera (Horváth), Nilaparvata lugens (Stål), and Laodelphax striatellus (Fallén) were able to overwinter in part of the survey range. 13 species were listed to be of economic importance. Abandoned rice paddies with dense Poaceae grasses (Poaceae) were the most favorable overwintering habitat. The survey range was divided into four regions and five areas based on natural geographical characteristics. The study demonstrated that winter temperature differentiation, terrains, and habitat differences were three factors affecting planthopper diversity. Planthopper species diversity showed a reductive trend from south to north and reflected a gradient of more severe winter temperatures. In addition, planthopper diversity was influenced by smaller-scale differences in terrain and habitat, as evidenced by greater diversity in the valleys and low-altitude areas as compared to mid-mountain and Karst plain areas.

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Number of species of planthoppers (total N = 22) collected in the six habitat types in southern Yunnan. The habitat types are described in Table 1. High quality figures are available online.
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f02_01: Number of species of planthoppers (total N = 22) collected in the six habitat types in southern Yunnan. The habitat types are described in Table 1. High quality figures are available online.

Mentions: The habitat affinity analysis showed a clear selection preference for particular habitats by several species (Table 2, Figure 2). 16 species of planthoppers (72.7%) were collected from abandoned paddies with dense grasses, while only 5 species (22.7%) of planthoppers were found in the wheat plantation. 10 species (45.5%) of planthoppers were collected from field drainages with dense grass. Species abundance in paddies with ratooning rice was higher than in paddies with actively growing rice.


Diversity of planthoppers associated with the winter rice agroecosystems in southern Yunnan, China.

Hu SJ, Fu DY, Liu XJ, Zhao T, Han ZL, Lü JP, Wan HL, Ye H - J. Insect Sci. (2012)

Number of species of planthoppers (total N = 22) collected in the six habitat types in southern Yunnan. The habitat types are described in Table 1. High quality figures are available online.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3472921&req=5

f02_01: Number of species of planthoppers (total N = 22) collected in the six habitat types in southern Yunnan. The habitat types are described in Table 1. High quality figures are available online.
Mentions: The habitat affinity analysis showed a clear selection preference for particular habitats by several species (Table 2, Figure 2). 16 species of planthoppers (72.7%) were collected from abandoned paddies with dense grasses, while only 5 species (22.7%) of planthoppers were found in the wheat plantation. 10 species (45.5%) of planthoppers were collected from field drainages with dense grass. Species abundance in paddies with ratooning rice was higher than in paddies with actively growing rice.

Bottom Line: A field survey of the overwintering planthoppers (Hemiptera: Delphacidae) associated with the rice agroecosystems in southern Yunnan was carried out during January-February in 2010 and 2011. 22 species of planthoppers were collected and identified, with one species representing the subfamily Stenocraninae and the other 21 species in Delphacinae.Planthopper species diversity showed a reductive trend from south to north and reflected a gradient of more severe winter temperatures.In addition, planthopper diversity was influenced by smaller-scale differences in terrain and habitat, as evidenced by greater diversity in the valleys and low-altitude areas as compared to mid-mountain and Karst plain areas.

View Article: PubMed Central - PubMed

Affiliation: Laboratory of Biological Invasion and Transboundary Ecosecurity, Yunnan University, Kunming, 650091, China. shaojihu@hotmail.com

ABSTRACT
A field survey of the overwintering planthoppers (Hemiptera: Delphacidae) associated with the rice agroecosystems in southern Yunnan was carried out during January-February in 2010 and 2011. 22 species of planthoppers were collected and identified, with one species representing the subfamily Stenocraninae and the other 21 species in Delphacinae. Nycheuma cognatum (Muir), Peregrinus maidis (Ashmead), and Pseudosogata vatrenus (Fennah) were new provincial records for Yunnan. The pest species, Sogatella furcifera (Horváth), Nilaparvata lugens (Stål), and Laodelphax striatellus (Fallén) were able to overwinter in part of the survey range. 13 species were listed to be of economic importance. Abandoned rice paddies with dense Poaceae grasses (Poaceae) were the most favorable overwintering habitat. The survey range was divided into four regions and five areas based on natural geographical characteristics. The study demonstrated that winter temperature differentiation, terrains, and habitat differences were three factors affecting planthopper diversity. Planthopper species diversity showed a reductive trend from south to north and reflected a gradient of more severe winter temperatures. In addition, planthopper diversity was influenced by smaller-scale differences in terrain and habitat, as evidenced by greater diversity in the valleys and low-altitude areas as compared to mid-mountain and Karst plain areas.

Show MeSH
Related in: MedlinePlus