| digestibility, n balance and blood metabolite levels in alpine goat wethers fed either water oak or shining sumac leaves. | eight alpine wethers (8-9 months of age, 27.5+/-1.10kg body weight (bw)) were randomly assigned to consume, free-choice, either shining sumac (rhus copallina) or water oak (quercus nigra) leaves as a sole diet. leaves were collected and dried prior to feeding. a 14-day adaptation period was followed by a 4-day total fecal and urine collection. chemical composition (%) of the fed water oak and shining sumac leaves revealed similar levels of om (95.9 and 94.1) and n (1.54 and 1.42) but higher conc ... | 2001 | 11295394 |
| aedes albopictus (diptera: culicidae) oviposition response to organic infusions from common flora of suburban florida. | we evaluated the oviposition response of gravid aedes albopictus (skuse) to six organic infusions. laboratory and field-placed oviposition cups baited with water oak (quercus nigra l.), longleaf pine (pinus palustris p. mill), or st. augustine grass (stenotaphrum secundatum (walt.) kuntze), as well as binary infusion mixtures of each, were used. in addition, a triple-cage, dual port olfactometer was used to measure upwind response of gravid individuals to these infusions. we found that ae. albop ... | 2010 | 21175935 |
| southern pine beetle, dendroctonus frontalis, antennal and behavioral responses to nonhost leaf and bark volatiles. | a growing body of evidence suggests that bark beetles detect and avoid release points of volatile compounds associated with nonhost species, and thus such nonhost volatiles may have potential utility in the management of bark beetles. we used a coupled gas chromatograph-electroantennographic detector (gc-ead) to assay the olfactory sensitivity of the southern pine beetle, dendroctonus frontalis zimmermann, to volatiles from leaves and bark of eight species of nonhost angiosperm trees that are co ... | 2013 | 23460417 |
| litter breakdown and microbial succession on two submerged leaf species in a small forested stream. | microbial succession during leaf breakdown was investigated in a small forested stream in west-central georgia, usa, using multiple culture-independent techniques. red maple (acer rubrum) and water oak (quercus nigra) leaf litter were incubated in situ for 128 days, and litter breakdown was quantified by ash-free dry mass (afdm) method and microbial assemblage composition using phospholipid fatty acid analysis (plfa), ribosomal intergenic spacer analysis (risa), denaturing gradient gel electroph ... | 2015 | 26098687 |
| stomatal frequency responses in hardwood-swamp vegetation from florida during a 60-year continuous co2 increase. | in a stomatal frequency analysis of leaf remains of quercus nigra, acer rubrum, myrica cerifera, ilex cassine, and osmunda regalis that were preserved in precisely dated peat deposits of north-central florida, the stomatal index decreased as a response to an atmospheric co(2) increase from 310 ppmv to 370 ppmv over the past 60 years. the observations indicate that co(2) responsiveness may occur in different canopy levels of hardwood-swamp vegetation. apart from common woody plants, long-lived fe ... | 2005 | 21652447 |