Environmental Aspects – Temperature

Bursell, E.

doi:10.1016/b978-0-12-591602-8.50008-4

Cited by 78 publications

(97 citation statements)

References 227 publications

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“…Temperature greatly influenced the development time of immature stages (egg, larva and pupa) of H. grandella, as it occurs with many insect species (Davidson 1944, Bursell 1964, Wigglesworth 1972, Dent 1991. Except for the larval stage at 25°C and 30°C, development time for immature stages decreased as temperature increased (P < 0.05) ( Table 1).…”

Section: Resultsmentioning

confidence: 98%

Development of Hypsipyla grandella (Zeller) (Lepidoptera: Pyralidae) in response to constant temperatures

Taveras¹,

Hilje²,

Carballo³

2004

Neotrop. Entomol.

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C. O estudo foi realizado em câmaras climáticas, com umidade de 80-90% e fotoperíodo de 8L:16D. Após a eclosão, as larvas foram alimentadas com folhas tenras de cedro (Cedrela odorata) e inspecionados a cada 24h para determinar a duração das fases larval e de pupa, e a emergência dos adultos em cada temperatura. As relações entre essas variáveis e a temperatura foram analisadas através de ANOVA, regressão e correlação. A temperatura teve grande influência no desenvolvimento das fases imaturas e na emergência dos adultos de H. grandella. A duração do ciclo biológico (ovo-adulto) variou de 30 dias (30ºC) a 104 dias (15ºC). A mortalidade do estágio larval foi alta nessas temperaturas, alcançando taxas de 90% (15°C) e 45% (30ºC). A mortalidade de larvas de primeiro instar foi também relativamente alta (51-75%) nas temperaturas dentro do intervalo de 15ºC a 30ºC, com exceção daquelas que se desenvolveram a 25ºC (14%). O peso das pupas foi menor em temperaturas extremas (15ºC e 30ºC). A estimativa da temperatura base de desenvolvimento para todos os estágios imaturos (8,5ºC) permitiu calcular a constante térmica (1320 graus dias), a qual possibilitará a previsão de picos populacionais no campo. PALAVRAS-CHAVE: Meliaceae, taxa de desenvolvimento, limiar térmico, constante térmica, Costa Rica ABSTRACT -Developmental response of the mahogany shootborer, Hypsipyla grandella (Zeller), to temperature was determined in laboratory trials in Turrialba, Costa Rica. Two hundred fresh eggs (less than 24h old) were placed individually inside glass flasks, and exposed to seven constant temperatures (10, 12.5, 15, 20, 25, 30 and 35°C), in separate experiments. These were carried out in environmental chambers, at 80-90% relative humidity and 8L:16D photoperiod. After hatch, larvae were fed tender foliage of Spanish cedar (Cedrela odorata) and were inspected every 24h to determine larval and pupal duration, and adult emergence, at each temperature. Relationships between these variables and temperature were analyzed by means of ANOVA, regression and correlation procedures. Temperature greatly influenced development of H. grandella immature stages and adult emergence; development time varied between 30 days (30ºC) and 104 days (15°C). Larval mortality was high at those temperatures, reaching values of 90% (15°C) and 45% (30ºC). Also, mortality of the first larval instar was relatively high (51-75%) at all temperatures in the range 15-30°C, except at 25ºC (14%). Pupal weight was lower at extreme temperatures (15ºC and 30ºC). Estimation of a common lower thermal threshold for all immature stages (8.5ºC) allowed calculation of a general thermal constant (1320 degree-days), which could be used to predict population peaks in the field.

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Section: Resultsmentioning

confidence: 98%

Development of Hypsipyla grandella (Zeller) (Lepidoptera: Pyralidae) in response to constant temperatures

Taveras¹,

Hilje²,

Carballo³

2004

Neotrop. Entomol.

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“…At each habitat, we measured two physical parameters known to be critical to insect behavior, thermoregulation, and development (Clark 1967, Bursell 1974)-photosynthetically active radiation (PAR) and seasonal temperature accumulation. PAR intensities were taken in sun and in adjacent shade habitats using a PAR sensor (LiCor 190S,Lincoln,Nebr.).…”

Section: Methodsmentioning

confidence: 99%

Patterns of Resource Use by a Drosophilid (Diptera) Leaf Miner on a Native Crucifer

Collinge

Louda

1988

Annals of the Entomological Society of America

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“…Generally, the oviposition rate reaches a maximum at relatively high temperatures near to the upper limit for egg laying, falling sharply above this maximum, but more gradually below it (Bursell, 1964). Work on the effects of different constant temperatures on progeny production by A. pseudococci, showed that high temperatures stimulate egg laying by this parasitoid (Aviflov et aL, 1967 ;Niyazov, 1968).…”

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confidence: 96%

Progeny production and adult longevity of the mealybug parasitoidsAnagyrus pseudococci, Leptomastix dactylopii, andLeptomastidea abnormis [Hym.: Encyrtidae] in relation to temperature

Tingle

Copland

1989

Entomophaga

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Progeny production increased and adult longevity decreased with rising temperature within the range 18 *C to 30 *C for the 3 mealybug parasitoids Anagyrus pseudococci (Girault), Leptomastix dactylopii Howard and Leptomastidea abnormis (Girault). The Weibull distribution gave a good fit to survival curves for the 3 parasitoids and statistical comparison of Weibull b and c parameters at different temperatures allowed changes in the scale and shape of the curves to be detected, In general, ~ lived longer than ~' for all 3 species, except at high temperature.Female L. abnormis attained their maximum progeny production at 24 *C and maintained this level up to 34 *C. They lived longer than the other 2 parasitoid species at 30 *C and showed a type I survival curve throughout the range of temperatures examined. A. pseudococci and L. daetylopii both required high temperatures (30 *C) to attain their maximal progeny production, but were short-lived at this temperature. At 30 *C the survival curves of both ff and ~ A.pseudococci tended towards type II, with a larger proportion of the population dying within the first few days. L. dactylopii lived longest at 26 *C, with ~ showing a type I survival curve at all temperatures and ~' survival curves changing from type I to type II at 30 *C. The implications of these findings for the population dynamics of the different parasitoids are briefly discussed.

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Environmental Aspects – Temperature

Cited by 78 publications

References 227 publications

Development of Hypsipyla grandella (Zeller) (Lepidoptera: Pyralidae) in response to constant temperatures

Development of Hypsipyla grandella (Zeller) (Lepidoptera: Pyralidae) in response to constant temperatures

Patterns of Resource Use by a Drosophilid (Diptera) Leaf Miner on a Native Crucifer

Progeny production and adult longevity of the mealybug parasitoidsAnagyrus pseudococci, Leptomastix dactylopii, andLeptomastidea abnormis [Hym.: Encyrtidae] in relation to temperature

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