Plant genetics predicts intra‐annual variation in phytochemistry and arthropod community structure

• DOI: 10.1111/j.1365-294x.2007.03544.x
• Publication Date: 2007-10-10T18:26:37Z
• Authors: G. M. WIMP; S. WOOLEY; R. K. BANGERT; W. P. YOUNG; G. D. MARTINSEN; P. KEIM; B. REHILL; R. L. LINDROTH; T. G. WHITHAM
• Keywords: Arthropod; Chemical genetics; Phytochemistry

Abstract With the emerging field of community genetics, it is important to quantify key mechanisms that link genetics and structure. We studied cottonwoods in common gardens natural stands examined potential for plant chemistry be a primary mechanism linking arthropod communities. If drives relationship between structure, then several predictions followed. would find (i) strongest correlation genetic composition chemical composition; (ii) an intermediate (iii) weakest composition. Our results supported our first prediction: had garden wild. largely second prediction, but varied across space, seasonally, according feeding group. Plant played larger role structuring communities relative wild communities, free‐living arthropods leaf stem modifiers, early‐season late‐season arthropods. did not support last as host was at least tightly linked structure chemistry, if more so. demonstrate consistency biodiversity. Additionally, can by which affects composition, other genetic‐based factors are likely involved remain measured.