PMID: 23342512Jan 25, 2013Paper

Population fluctuation of Xyleborus ferrugineus and X. affinis (Coleoptera: Curculionidae) in ecosystems of Tabasco, Mexico

Revista de biología tropical
Ricardo RangelSilvia Capello

Abstract

The Scolytinae insects are commonly known as bark or ambrosial beetles because of their feeding habits. Among them, some species restrict their reproductive activity to a host plant or a small number of them, whereas others are highly polyphagous. In order to evaluate the population dynamics of Scolytinae species, populations of Xyleborusferrugineus and X. affinis in ecosystems from Tabasco, Mexico were studied. The study was carried out from November 2010-July 2011, February 2010-January 2011 and 2007. The trapping methods used were alcohol traps, light traps and direct capture on their host plants. A total of 688 specimens ofX ferrugineus and 3 911 specimens of X. affinis were collected. The population dynamics of X. ferrugineus showed low size population in the studied ecosystems, without any marked seasonality. The highest population sizes were recorded both in dry season (March-May) and rainy season (September-December). Unlike the populations of X. ferrugineus, those of X. affinis were more abundant and showed the highest peaks during the rainy seasons (except in May at the Botanical Garden "José Narciso Rovisora"). Alcohol and light traps can be complementary methods for monitoring the populations of these types of insec...Continue Reading

Related Concepts

Order Coleoptera
Underpopulation
Neomalthusianism
Seasonal Variation
Habitat
Food
Insecta
Evaluation
Weevils
Scolytinae

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