Uribe -Mú , C. A. and Quesada, M. 2006. Preferences, patterns and consequences of branch removal on the dioecious tropical tree Spondias purpurea (Anacardiaceae) by the insect borer Oncideres albomarginata chamela (Cerambycidae). Á/ Oikos 112: 691 Á/ 697.Most studies of plant Á/herbivore interactions in dioecious species have evaluated foliar herbivory. In this studie we evaluated preferences of branch removal by the insect borer Oncideres albomarginata chamela in the tropical dioecious tree Spondias purpurea L. The objectives were to determine the preferences and patterns of the removal of branches, to evaluate the effect of branch removal in the vegetative regeneration of branches, and to evaluate the effect of branch removal on the regeneration of fertile branches of male and female trees of S. purpurea . During three consecutive years of study, damage caused to branches by the girdled borer was associated with plant gender. The proportion of branches removed by the insect was greater for female than for male trees. The effects of branch removal were evaluated in attacked regenerated and unattacked branches. Removed branches regenerated a year after the insect borer attacked them. Branch removal affected the probability of producing fertile branches. The preference by O. a. chamela is apparently associated with the nutritional quality of the host.

The present study provides information on the composition and seasonal abundance of the families Chrysopidae, Coniopterygidae and Hemerobiidae associated with Mexican lime trees [Citrus aurantifolia (Christm.) Swingle] in Tecomán, Colima. The study was conducted in a Mexican lime orchard, untreated chemically. Field surveys were carried out during 13 months, from May 2013 to June 2014. Sampling was carried out monthly using 5 collecting techniques: Malaise trap, sweeping net, aerial net, yellow pan traps, and canopy fogging. A total of 508 specimens were collected, placed in 3 families and 21 species, 6 of those are new citrus records worldwide, 7 are new distribution records for Colima state, and 7 are new citrus records in Mexico. The most abundant and frequent species were Ceraeochrysa cubana (Hagen, 1861), Ceraeochrysa cincta (Scheider, 1851) and Chrysoperla externa (Hagen, 1861). Diversity of order 1, including the species of the 3 families and their relative abundance, was 7.1 effective species; and during the first period of vegetative sprouting of Mexican lime trees, the 3 families share maximum values of diversity. The results have implications for the conservation and use of the diversity of Neuroptera associated with citrus trees in the state.

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