The impact of ozone fumigations on the biology of a late season sugar maple defoliator (Heterocampa guttivitta Walker)

Conference · Tue Jun 01 04:00:00 EDT 1993 · Bulletin of the Ecological Society of America; (United States)

OSTI ID:6202482

Constantin, M; Mauffette, Y ^[1]

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1. UQAM, GREF, C.P., Montreal, Quebec (Canada)

Two-year old sugar maple seedlings were exposed to charcoal-filtered air (CFA) and to three multiples (1x, 1.5x or 3x) of the ambient ozone (O[sub 3]) concentrations during the summers of 1991 and 1992. The saddled prominent (Heterocampa guttivitta Walker) was reared on leaves sampled from CFA and fumigated plants. Developmental cues such as pupal weight, survival rate, egg production and larval developmental time were measured and compared among CFA and 0, treatments. In 1991, larvae reared on the CFA foliage developed significantly lighter pupal weights than those reared on 1x and 3x (306mg vs 355mg and 353mg); the other variables were not affected by the treatments. A similar trend was observed in 1992 although pupal weights did not significantly differ among CFA and O[sub 3] fumigations. These results indicate that this lepidopteran can respond to biochemical changes induced by abiotic stresses such as ozone.

• OSTI ID: 6202482
• Report Number(s): CONF-930798--
• Conference Information: Journal Name: Bulletin of the Ecological Society of America; (United States) Journal Volume: 74:2
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
ARTHROPODS
BIOLOGICAL EFFECTS
INSECTS
INVERTEBRATES
LARVAE
LEAVES
MAGNOLIOPHYTA
MAGNOLIOPSIDA
MAPLES
OZONE
PLANTS
SEEDLINGS
TREES
WEIGHT