Journal article
Comparative Demography of Three Hawaiian Fruit Flies (Diptera: Tephritidae) at Alternating Temperatures
Annals of the Entomological Society of America, Vol.93(1), pp.75-81
01/01/2000
Handle:
https://hdl.handle.net/2376/113681
Abstract
Reproductive and population parameters of melon flies, Bactrocera cucurbitae Coquillett, oriental fruit flies, B. dorsalis Hendel, and Mediterranean fruit flies, Ceratitis capitata (Wiedemann), were measured in environmental chambers maintained at temperatures of (maximum:minimum) 24:13, 24:24, 29:18, and 35:24 plus or minus 1 degree C. Alternating temperature regimes more realistically approached the variation found in nature and produced higher parameters than an optimal constant temperature (24 degree C). Intra- and interspecific comparisons were done with 4 separate generations of wild fruit flies reared on a common natural host. All species attained their highest intrinsic rates of population increase at 29:18 or 35:24 degree C; C. capitata exhibited the highest intrinsic rates of increase at all temperature regimes. All species attained maximum net reproductive rates at 29:18 degree C, in the order C. capitata > B. dorsalis > B. cucurbitae. The 35:24 degree C regime caused reductions in net reproductive rates of all species, with B. dorsalis affected most strongly. Male longevity was greater than that of females for all species in all temperature regimes. Two distinctly different life history patterns were evident: (1) early reproduction, short life span, and a high intrinsic rate of increase (C. capitata), and (2) later onset of reproduction, longer life span, and a lower intrinsic rate of increase (B. cucurbitae).
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Details
- Title
- Comparative Demography of Three Hawaiian Fruit Flies (Diptera: Tephritidae) at Alternating Temperatures
- Creators
- R I VargasW A WalshD KanehisaJ D StarkT Nishida
- Publication Details
- Annals of the Entomological Society of America, Vol.93(1), pp.75-81
- Academic Unit
- Entomology, Department of
- Identifiers
- 99900547722901842
- Language
- English
- Resource Type
- Journal article