How to Compare the Lower Developmental Thresholds

Shi, Peijian; Ge, Feng; Men, Xingyuan

doi:10.1603/en10136

Cited by 19 publications

(18 citation statements)

References 25 publications

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“…1) using the published mean development rate data for insects and mites. Shi et al (2010) found evidence supporting this hypothesis based on data on the developmental rate of egg and nymphal stages of Lygocoris lucorum Meyer-Dür. In addition Ikemoto (2003) proposed the common-intersection hypothesis (CIH), which states that the development times of the related members within a taxon (e.g., within a family) are equal at a given temperature.…”

Section: Introductionmentioning

confidence: 73%

Common-intersection hypothesis of development rate lines of ectotherms within a taxon revisited

Bonato

Ikemoto

Shi

et al. 2011

Journal of Thermal Biology

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Section: Introductionmentioning

confidence: 73%

Common-intersection hypothesis of development rate lines of ectotherms within a taxon revisited

Bonato

Ikemoto

Shi

et al. 2011

Journal of Thermal Biology

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“…Method 5 Shi et al . (2010) proposed a new method on the basis of the Chow test (Chow, 1960) to test whether there is a significant difference among the LDTs of different developmental stages obtained from .…”

Section: Methodsmentioning

confidence: 99%

“…While this experiment provides only a single‐example insect species, it is adequate for substantiating rate isomorphy. A few feasible statistical methods for comparing the equality of LDT values calculated using the raw developmental rate data were executed, including a new method based on the Chow test (Shi et al ., 2010).…”

Section: Introductionmentioning

confidence: 99%

Testing the rate isomorphy hypothesis using five statistical methods

Kuang

Parajulee²,

Shi

et al. 2011

Insect Science

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Organisms are said to be in developmental rate isomorphy when the proportions of developmental stage durations are unaffected by temperature. Comprehensive stage‐specific developmental data were generated on the cabbage beetle, Colaphellus bowringi Baly (Coleoptera: Chrysomelidae), at eight temperatures ranging from 16°C to 30°C (in 2°C increments) and five analytical methods were used to test the rate isomorphy hypothesis, including: (i) direct comparison of lower developmental thresholds with standard errors based on the traditional linear equation describing developmental rate as the linear function of temperature; (ii) analysis of covariance to compare the lower developmental thresholds of different stages based on the Ikemoto‐Takai linear equation; (iii) testing the significance of the slope item in the regression line of versus temperature, where p is the ratio of the developmental duration of a particular developmental stage to the entire pre‐imaginal developmental duration for one insect or mite species; (iv) analysis of variance to test for significant differences between the ratios of developmental stage durations to that of pre‐imaginal development; and (v) checking whether there is an element less than a given level of significance in the p‐value matrix of rotating regression line. The results revealed no significant difference among the lower developmental thresholds or among the aforementioned ratios, and thus convincingly confirmed the rate isomorphy hypothesis.

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“…Later it was shown that rate isomorphy occurs in all ectotherm animals (Jarošṍk et al 2004), and different methods to tests for rate isomorphy were developed (Shi et al 2010, Bonato et al 2011. There are also indications that it might be applied to plants.…”

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confidence: 99%

Developmental Database for Phenology Models: Related Insect and Mite Species Have Similar Thermal Requirements

Jaros̆ı́k¹,

Honěk²,

Magarey³

et al. 2011

jnl. econ. entom.

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Two values of thermal requirements, the lower developmental threshold (LDT), that is, the temperature at which development ceases, and the sum of effective temperatures, that is, day degrees above the LDT control the development of ectotherms and are used in phenology models to predict time at which the development of individual stages of a species will be completed. To assist in the rapid development of phenology models, we merged a previously published database of thermal requirements for insects, gathered by online search in CAB Abstracts, with independently collected data for insects and mites from original studies. The merged database comprises developmental times at various constant temperatures on 1,054 insect and mite species, many of them in several populations, mostly pests and their natural enemies, from all over the world. We show that closely related species share similar thermal requirements and therefore, for a species with unknown thermal requirements, the value of LDT and sum of effective temperatures of its most related species from the database can be used.

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How to Compare the Lower Developmental Thresholds

Cited by 19 publications

References 25 publications

Common-intersection hypothesis of development rate lines of ectotherms within a taxon revisited

Common-intersection hypothesis of development rate lines of ectotherms within a taxon revisited

Testing the rate isomorphy hypothesis using five statistical methods

Developmental Database for Phenology Models: Related Insect and Mite Species Have Similar Thermal Requirements

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