caa a22 4500 39757150X CHVBK 20180308164842.0 cr unu---uuuuu 161202e19961001xx s 000 0 eng 10.1093/ee/25.5.977 doi (NATIONALLICENCE)oxford-10.1093/ee/25.5.977 Pattern of Herbivore Abundance Along a Climatic Gradient: Guild Shift of Leaf-Feeding Insects and Changes in Leaf Characteristics [Elektronische Daten] [Molly Thomas Hysell, Michael R. Wagner, Charles C. Grier] The abundance of insects in 3 feeding guilds (strip-feeding, pit-feeding, and sucking) and leaf characteristics (toughness as measured by resistance to penetration, and specific leaf area) were examined during 2 summers along a climatic and vegetation gradient in the southwest United States. Strip-feeding insects were more abundant, and needles were softer (less resistant to penetration) and thinner (higher specific leaf area) on piñon pines of summer-wet southeast Arizona than on piñon pines of the drier summer climates of northcentral and northwest Arizona. Sucking insects were more abundant and needles were tougher on piñon pines of northcentral Arizona. Pit-feeding insects were less abundant on southeast piñon pines (the difference was significant in 1990 but not 1991) and showed different abundance on northcentral and northwest piñon pines between the 2 summers. © 1996 Entomological Society of America Community and Ecosystem Ecology nationallicence insect feeding-guilds nationallicence climatic gradient nationallicence piñon pines nationallicence xeromorphic leaf characteristics nationallicence insect herbivore abundance nationallicence Hysell Molly Thomas School of Forestry, Northern Arizona University, Flagstaff, AZ 86011 aut Wagner Michael R. School of Forestry, Northern Arizona University, Flagstaff, AZ 86011 aut Grier Charles C. School of Forestry, Northern Arizona University, Flagstaff, AZ 86011 aut Environmental Entomology Oxford University Press 25/5(1996-10-01), 977-982 0046-225X 25:5<977 1996 25 ee https://doi.org/10.1093/ee/25.5.977 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.5.977 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hysell Molly Thomas School of Forestry, Northern Arizona University, Flagstaff, AZ 86011 aut NATIONALLICENCE 700 1- Wagner Michael R. School of Forestry, Northern Arizona University, Flagstaff, AZ 86011 aut NATIONALLICENCE 700 1- Grier Charles C. School of Forestry, Northern Arizona University, Flagstaff, AZ 86011 aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/5(1996-10-01), 977-982 0046-225X 25:5<977 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