Vertical and Temporal Distribution of Carabidae and Elateridae in Flight Above an Agricultural Landscape

A Seasonal Survey of Click Beetles in a Potato Production Area Near Palmer, Alaska

“…Species richness, measured by the total number of species present in our insect study is low (8 species) compared to reports from Canada and Japan where 46 and 53 species of elaterids were collected from an agricultural landscape (including potatoes and other crops) and forest respectively (Boiteau et al 2000;Ohsawa 2004). The differences in species richness between our study and previous reports from subarctic environments cannot be explained with current knowledge of elaterid biology in the state, but might be associated to temperature.…”

“…The differences in species richness between our study and previous reports from subarctic environments cannot be explained with current knowledge of elaterid biology in the state, but might be associated to temperature. The Canadian study, which involved different elaterid species, was at latitude N45.55° (Boiteau et al 2000). Our work was conducted at N61.60°.…”

“…In the United States, Canada, and Europe, wireworms (Coleoptera: Elateridae) are important pests of vegetables, small grains, and potatoes (Solanum tuberosum L.) (Lane and Stone 1960;Onsager 1975;Toba 1981;Toba and Campbell 1992;Boiteau et al 2000;Landolt 2001, 2002;Parker and Howard 2001;Crozier et al 2003). In Alaska, wireworm damage to potato was noted as early as 1949 (Chamberlin 1949).…”

Vertical distribution profile of Colorado potato beetle [Coleoptera: Chrysomelidae] in flight above host, resistant host and non-host fields

“…Few studies (Boiteau et al 1999(Boiteau et al , 2000a(Boiteau et al , 2000b have evaluated insect vertical profiles above agricultural landscapes and the most exhaustive study on vertical distributions of insect populations in flight (Taylor 1974) was carried out above grass. The objective of this project was to determine if the vertical distribution profile of CPB in flight above the potato crop changed as beetles dispersed above CPB resistant crops and non-host crops.…”

“…The objective of this project was to determine if the vertical distribution profile of CPB in flight above the potato crop changed as beetles dispersed above CPB resistant crops and non-host crops. A secondary objective was to verify observations of Boiteau et al (2000a) on the vertical profile of CPB. Field data on the expected positive relationship between CPB flight height and distance flown (Caprio and Grafius 1993;Voss andFerro 1990a, 1990b) were obtained for New Brunswick to help interpret data on vertical profiles.…”