caa a22 4500 397571356 CHVBK 20180308164842.0 cr unu---uuuuu 161202e19961001xx s 000 0 eng 10.1093/ee/25.5.1147 doi (NATIONALLICENCE)oxford-10.1093/ee/25.5.1147 Competition, Leaf Morphology, and Host Clone Effects on Leaf-Galling Grape Phylloxera (Homoptera: Phylloxeridae) [Elektronische Daten] [Diana N. Kimberling, Peter W. Price] Multivoltine, parthenogenetic grape phylloxera, Daktulosphaira vitifoliae Fitch, gall the leaves of wild grape, Vitis arizonica Englemann, along riparian areas in Arizona. We compared patterns of distribution of 1st-generation galls within leaves to determine if intraspecific competition for sites influenced the probability of survival and reproductive success. Within-leaf distribution patterns of galls were random or aggregated. There were significantly more galls on primary and secondary veins than on tertiary veins, but there were no differences in numbers of galls colonizing proximal, medial, or distal regions of a leaf. Survivorship of females was not significantly different among vein type or region colonized. There was a significantly greater mean fecundity within galls when females colonized secondary veins compared with primary or tertiary veins, but this difference explained only 3% of the variance. Leaf size was not correlated with percentage of survivorship or mean fecundity within galls. Increased gall density from 4 to 10 galls per leaf did not result in decreased survivorship and the effect on mean fecundity was marginal. There were significant differences in percentage of phylloxera survivorship and mean fecundity among leaves collected from different host clones. Interference competition appeared to be absent at the within-leaf spatial scale, but at greater spatial scales, host quality was important to phylloxera fitness. © 1996 Entomological Society of America Population Ecology nationallicence leaf galler nationallicence competition nationallicence grape phylloxera nationallicence survivorship nationallicence fecundity nationallicence Kimberling Diana N. Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011 aut Price Peter W. Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011 aut Environmental Entomology Oxford University Press 25/5(1996-10-01), 1147-1153 0046-225X 25:5<1147 1996 25 ee https://doi.org/10.1093/ee/25.5.1147 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.5.1147 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kimberling Diana N. Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011 aut NATIONALLICENCE 700 1- Price Peter W. Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011 aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/5(1996-10-01), 1147-1153 0046-225X 25:5<1147 1996 25 ee Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford