Physical and chemical alteration of soil by two subterranean termite species in Sonoran Desert grassland

Effective active ingredients in toxicant bait formulations must be non-deterrent to insect feeding behavior at lethal concentrations. This study evaluated feeding deterrence for Coptotermes formosanus Shiraki, C. gestroi (Wasmann), and Reticulitermes flavipes (Kollar) when provided access to cellulose impregnated with various concentrations of the insect molting hormone, 20-hydroxyecdysone (20E). Termites were exposed to 20E concentrations of 200, 500, 1000 and 2000 ppm and to noviflumuron at 5000 ppm in a 24 h choice-test, and the mass of substrate consumption from treated and untreated media pads was compared for each treatment. 20E feeding deterrence was detected at 500, 1000 and 2000 ppm for C. gestroi, and at 2000 ppm for C. formosanus. No significant differences in consumption of treated and untreated substrate was detected at any concentration for R. flavipes. Potential methods for reducing deterrence are discussed.

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Delineation of Heterotermes aureus (Isoptera: Rhinotermitidae) Foraging Territories in a Sonoran Desert Grassland

Environmental Entomology ◽

10.1093/ee/19.4.1047 ◽

1990 ◽

Vol 19 (4) ◽

pp. 1047-1054 ◽

Cited By ~ 28

Author(s):

Susan C. Jones

Keyword(s):

Sonoran Desert ◽

Desert Grassland

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Effects of Temperature, Directional Aspects, Light Conditions, and Termite Species on Subterranean Termite Activity (Isoptera: Rhinotermitidae)

Environmental Entomology ◽

10.1603/0046-225x-33.2.242 ◽

2004 ◽

Vol 33 (2) ◽

pp. 242-248 ◽

Cited By ~ 10

Author(s):

Huixin Fei ◽

Gregg Henderson

Keyword(s):

Subterranean Termite ◽

Light Conditions ◽

Termite Species ◽

Effects Of Temperature

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Physical and Chemical Characteristics of the Hyporheic Zone of a Sonoran Desert Stream

Journal of the North American Benthological Society ◽

10.2307/1467584 ◽

1990 ◽

Vol 9 (3) ◽

pp. 201-215 ◽

Cited By ~ 124

Author(s):

H. Maurice Valett ◽

Stuart G. Fisher ◽

Emily H. Stanley

Keyword(s):

Sonoran Desert ◽

Hyporheic Zone ◽

Chemical Characteristics ◽

Physical And Chemical Characteristics ◽

Physical And Chemical ◽

Desert Stream

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Niche analysis of dominant species in alpine desert grassland communities in Qaidam Basin

E3S Web of Conferences ◽

10.1051/e3sconf/202125703021 ◽

2021 ◽

Vol 257 ◽

pp. 03021

Author(s):

Jiancai Sun ◽

Yonghui Li ◽

Deting Deng ◽

Sha Yang ◽

Yukun Wu ◽

...

Keyword(s):

Plant Communities ◽

Dominant Species ◽

Qaidam Basin ◽

Chemical Properties ◽

Niche Overlap ◽

Desert Plant ◽

Desert Grassland ◽

Qinghai Province ◽

Physical And Chemical ◽

The Relationship

Community dominant plants and their ecological niche research is the focus of community ecology research. To explore the niche characteristics of desert dominant plants and the relationship between them and soil factors in Qaidam Basin, and to provide a basis for the construction of desert plant communities and the sustainable management of natural resources in Qaidam Basin. Taking 13 desert plant communities in Qaidam Basin, Qinghai Province as the research objects, this paper analyzed the characteristics of desert plant communities and dominant species based on soil physical and chemical properties, and calculated the niche width and niche overlap of dominant plants. The dominant plants are, Haloxylon ammodendron, Tamarix chinensis, Achnatherum splendens, Poacynum hendersonii, Reaumuria songonica, Phragmites australiss, Sympegma regelii, and Ajania Tenuifolia, Artemisia sphaerocephala, Ceratoides latens, Pearl russianthistle, Scirpustriquter. There were different degree of niche overlap among species in the community. In addition, CCA sequencing showed that different species had different requirements on the environment, and the distribution of dominant species was mainly affected by soil total nitrogen and soil organic matter.

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