Jump to Main Content
PubAg
Main content area
Search
Search Results
- Author:
- Briggs, C.J., et al. ; Daugherty, M.P.; Show all 2 Author
- Source:
- Environmental entomology 2007 v.36 no.4 pp. 776-791
- ISSN:
- 0046-225X
- Subject:
- plant tissues; food webs; Pyrus communis; arthropod communities; community structure; biological control agents; predatory arthropods; herbivores; carbon nitrogen ratio; Cacopsylla pyricola; stable isotopes; omnivores
- Abstract:
- ... Documenting trophic links in a food web has traditionally required complex exclusion experiments coupled with extraordinarily labor-intensive direct observations of predator foraging. Newer techniques such as stable isotope analysis (SIA) may facilitate relatively quick and accurate assessments of consumer feeding behavior. Ratios of N and C isotopes are thought to be useful for determining specie ...
- DOI:
- 10.1603/0046-225X(2007)36[776:MSOIVI]2.0.CO;2
- PubMed:
- 17716468
-
http://dx.doi.org/10.1603/0046-225X(2007)36[776:MSOIVI]2.0.CO;2
- Author:
- Briggs, C.J., et al. ; Daugherty, M.P.; Welter, S.C.; Show all 3 Authors
- Source:
- Biological control 2007 v.43 no.3 pp. 257-264
- ISSN:
- 1049-9644
- Subject:
- Cacopsylla pyricola; population density; population growth; nitrogen fertilizers; fertilizer rates; Pyrus communis; pears; plant growth; nitrogen content; predatory insects; natural enemies; Anthocoris nemoralis; predation; biological control agents; tritrophic interactions; insect control
- Abstract:
- ... Herbivore population dynamics are governed both by bottom-up (plant-mediated) and by top-down (natural enemy-mediated) processes, with the potential for interaction between them. Pear psylla (Cacopsylla pyricola Foërster) is a phytophagous pest in pear orchards. Pear psylla is commonly attacked by several different natural enemies, but it may escape control, especially if fertilizer additions and ...
- DOI:
- 10.1016/j.biocontrol.2007.09.001
-
http://dx.doi.org/10.1016/j.biocontrol.2007.09.001
- Author:
- Briggs, C.J., et al. ; Boukili, V.K.S.; Hoopes, M.F.; Show all 3 Authors
- Source:
- Environmental entomology 2007 v.36 no.2 pp. 441-450
- ISSN:
- 0046-225X
- Subject:
- temperature; stem elongation; galls; Rhopalomyia californica; host plants; light intensity; environmental factors; wind speed; seasonal variation; insect development; insect reproduction; cages; Baccharis pilularis; California
- Abstract:
- ... This study assessed the influence of microenvironment on the establishment and relative reproductive success of the gall-forming midge Rhopalomyia californica Felt on its host plant Baccharis pilularis De Candolle in Marin County, CA. Mesh cages were used to alter the microenvironment, which also allowed us to assess the validity of using these types of experimental manipulations in this system. T ...
- DOI:
- 10.1603/0046-225X(2007)36[441:EOMODO]2.0.CO;2
- PubMed:
- 17445380
-
http://dx.doi.org/10.1603/0046-225X(2007)36[441:EOMODO]2.0.CO;2
- Author:
- Briggs, C.J., et al. ; Jiang, P.; Burczynski, F.; Campbell, C.; Pierce, G.; Austria, J.A.; Show all 6 Authors
- Source:
- Food research international 2007 v.40 no.3 pp. 356-364
- ISSN:
- 0963-9969
- Subject:
- Fagopyrum tataricum; rutin; cultivars; lipid peroxidation; plant extracts; Fagopyrum esculentum; low density lipoprotein; antioxidant activity; antioxidants; cholesteremic effect; buckwheat
- Abstract:
- ... This study was conducted to investigate the rutin content of three buckwheat species: Fagopyrum esculentum, Fagopyrum tataricum and Fagopyrum homotropicum, and to evaluate their antioxidant capacity. In total, 11 cultivars/accessions were analyzed. The contents of both rutin and total flavonoids were significantly different depending on species, 0.02% and 0.04% in F. esculentum, 0.10% and 0.35% in ...
- DOI:
- 10.1016/j.foodres.2006.10.009
-
http://dx.doi.org/10.1016/j.foodres.2006.10.009