Temperature and the development rates of thrips: evidence for a constraint on local adaptation?

Typically, the relationship between insect development and temperature is described by two characteristics: the minimum temperature needed for development to occur (T-min) and the number of day degrees required (DDR) for the completion of development. We investigated these characteristics in three English populations of Thrips major and T tabaci [Cawood, Yorkshire (N53degrees49', W1degrees7'); Boxworth, Cambridgeshire (N52degrees15', W0degrees1'); Silwood Park, Berkshire (N51degrees24', W0degrees38')], and two populations of Frankliniella occidentalis (Cawood; Silwood Park). While there were no significant differences among populations in either T-min (mean for T major = 7.0degreesC; T tabaci = 5.9degreesC; F. occidentalis = 6.7degreesC) or DDR (mean for T major = 229.9; T tabaci = 260.8; F occidentalis = 233.4), there were significant differences in the relationship between temperature and body size, suggesting the presence of geographic variation in this trait. Using published data, in addition to those newly collected, we found a negative relationship between T-min. and DDR for F occidentalis and T tabaci, supporting the hypothesis that a trade-off between T-min and DDR may constrain adaptation to local climatic conditions.

The ecclesiastical and architectural topography of England.

Many of the ill. in pts. 4 and 7 are wood engravings by C. and O. Jewitt.

Annals of the Solar Physics Observatory, Cambridge.

Mode of access: Internet.

Theodori Episcopi Mopsuesteni in Epistolas B. Pauli commentarii : the Latin version with the Greek fragments /

Appendix A (v. 2) comprises fragments of the dogmatic works of Theodore.

The Gentleman's magazine library : being a classified collection of the chief contents of the Gentleman's magazine from 1731 to 1868 /

Vol. 4 has cover title: English traditions and foreign customs.

Ploutarchou Demosthenes = Plutarch's life of Demosthenes /

Half-title in Greek characters: Ploutarchou Demosthenes.

Views of the most interesting collegiate and parochial churches in Great Britain : including screens, fonts, monuments, &c. &c. : with historical and architectural descriptions /

No more published.

The sermons of Edwin Sandys : to which are added some miscellaneous pieces /

Includes index.

The influence of the Roman law on the law of England /

Includes index.

Magna Britannia; being a concise topographical account of the several counties of Great Britain.

No more published.

Modern Spain, 1815-1898 /

Bibliography: p. [471]-481.

The rights of man, (not Paines,) but the rights of man, in the West Indies.

Title on added t.p.: The rights of man in the West Indies.

Churches of Yorkshire.

Has bound in: Ecclesiological society, London. Churches of Cambridgeshire and the Isle of Ely. [184-?]

Magna Britannia; : being a concise topographical account of the several counties of Great Britain. /

Publisher's imprint in v. 6 differs: Printed for Thomas Cadell ... 1822.