Local Dispersal of Male Spruce Budworm (Lepidoptera: Tortricidae) Moths Determined by Mark, Release, and Recapture

Abstract

Can. Ent. 115: 1053-1058 (1983) Laboratory wind tunnel and field observations have demonstrated an important behavioural role of tetradecanal(14:Ald) in the chemical communication system of the spruce budworm, Choristoneura fumiferana (Clemens). A greater numbe; of males initiated upwind flight and continued on to contact the source when 14:Ald was present than with 9515 EIZ1 1-tetradecenal (EIZ11-14:Ald) alone. The presence of E l l-tetradecen-1-01 acetate (Ell-14:Ac) decreased the males' responsiveness to the aldehydes. Its effect appeared to be attenuated, when present at low levels with 9515 EIZ11-14:Ald, by the presence of 14:Ald, but it is still unclear what effects low levels of E l 1-14:Ac have on male behaviour.

Factors influencing flight potential of Choristoneura conflictana

“…However, a lack of resources may induce flight dispersal of moths in poor body condition at high population densities. Small male Choristoneura fumiferana from dense populations fly farther than large males (Sanders, 1983). This is in contrast to our laboratory findings in which large C. conflictana moths fly farther than small moths.…”

“…Movement of female and male moths can occur for different reasons within the same habitat. Male moths can fly long distances in search of a mate ( Sanders, 1983;Showers et al , 2001 ), whereas females may fly to find suitable oviposition sites ( Hughes & Dorn, 2002 ). Female movement is therefore more likely to direct population relocation or colonization than male movement ( Johnson, 1966;Hughes & Dorn, 2002;Benton et al , 2005;Sarvary et al , 2008 ).…”

Seasonal history ofOrthotomicus erosus (Coleoptera: Scolytidae) in Israel

“…Although usually only one sex can be monitored, during a limited period of adult activity, this method appears to permit the detection of dispersive insects at extremely sparse population densities. It has successfully been applied in studies of active, as well as passive, dispersal of a number of lepidopterous species (BAREL 1973; BALTENSWEILER and VON SALIS 1975; CAMPION et al 1977;MANI and WILDBOLZ 1977;SKUHRAVY and ZUMR 1978;BALTENSWEILER and DELUCCHI 1979;BALTENSWEILER and FRISCHLIN 1979;CROFT 1979;DATERMAN 1979;STERN 1979;SANDERS 1979SANDERS , 1983SZIRAKI 1979SZIRAKI , 1984ELKINTON and CARDB 1980;ARTHUR and BAUER 1981;FLINT and MERKLE 1981; S K U H R A~ 1981; VAN KASTER and SHOWERS 1982;DOMINO et al 1983;CIOCHIA et al 1984;NASR et al 1984;ROSE et al 1984…”

Larval experience induces adult aversion to rearing host plants: a novel behaviour contrary to Hopkins' host selection principle

“…Additional matings, long‐distance dispersal and subsequent layings can occur, depending on weather and female condition (Sanders & Lucuik, 1975). Males disperse at the scale of 100 m within a stand, following odour plumes; at lower population densities, dispersal distances are thought to be greater as pheromone plumes are fewer (Sanders, 1983). The spruce budworm is a strong flyer and long‐range (up to 100 km) dispersal flight can be undertaken by both males and mated females (Saunders, 1987).…”

“…Mean SE pheromone plumes are fewer (Sanders, 1983). The spruce budworm is a strong flyer and long-range (up to 100 km) dispersal flight can be undertaken by both males and mated females (Saunders, 1987).…”