Possible impact of global warming on cabbage root fly (<i>Delia radicum</i>) activity in the UK

Collier, Rosemary; Finch, S.; Phelps, K.; Thompson, A. R.

doi:10.1111/j.1744-7348.1991.tb05627.x

Cited by 41 publications

(21 citation statements)

References 19 publications

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“…These varied responses are expected to change current large-scale patterns and processes, such as distributions of species and the composition and dynamics of communities (Collier et al 1991;Dewar and Watt 1992;Ayres 1993;Ives and Gilchrist 1993;Pacala and Hurtt 1993;Williams and Liebold 1995).…”

Section: Introductionmentioning

confidence: 99%

Direct and indirect effects of climate change on St John's wort, Hypericum perforatum L. (Hypericaceae)

et al. 1999

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We report results from a continuing, long-term field experiment addressing biotic responses to climatic change in grasslands. We focus on effects of summer precipitation (enhanced rainfall, drought, control) and winter ground temperatures (warming, control) on growth, reproduction and herbivory in St John's wort, Hypericum perforatum L. Both winter warming and summer rainfall regimes modified performance and interactions of H. perforatum, particularly those with herbivorous insects. Winter warming had positive effects, with earlier initiation of plant growth and reduced damage by gall-forming and sucking insects in spring, but also had strong negative effects on plant height, flowering, and reproduction. Summer drought reduced reproductive success, but even severe drought did not affect plant growth or flowering success directly. Rather, summer drought acted indirectly by modifying interactions with herbivorous insects via increased vulnerability of the plants to herbivory on flowers and capsules. Overall, the effects of summer precipitation were expressed mainly through interactions that altered the responses to increased winter temperatures, particularly as summer drought increased. The field site, in Oxfordshire, UK, is near the northern limit of distribution of the species, and the experiment tested probable responses of H. perforatum as climates shift towards those more typical of the current center of the distribution of the species. However, if climates do change according to the projected scenarios, then H. perforatum is unlikely to fare well near its northern boundary. Increased winter temperatures, particularly if accompanied by increased summer drought, will probably render this species even less abundant in England than at present.

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Section: Introductionmentioning

confidence: 99%

Direct and indirect effects of climate change on St John's wort, Hypericum perforatum L. (Hypericaceae)

et al. 1999

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“…Although virus-vector nematodes are important soil-borne plant parasites which occur in most terrestrial biotopes they have so far received less attention compared with airborne pests, e.g. aphids, with respect to potential climatic changes [Collier et al, 1991].…”

Section: Introductionmentioning

confidence: 99%

The predicted impact of possible climatic change on virus-vector nematodes in Great Britain

Neilson

Boag

1996

Eur J Plant Pathol

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Data extracted from surveys of plant-parasitic nematodes in Great Britain allowed relatively detailed maps of the geographical distribution of various longidorid and trichodorid virus-vector nematode species to be produced. These distributions are related to long-term monthly mean temperature. Recently published figures for climate change were applied to the distribution data. A potential increase in nematode associated problems due to climate change using examples of existing published data are examined and discussed.

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“…Each egg deposition cycle is termed an oviposition bout (Koštá l et al 2000, Spencer andMiller 2002). In Canada, adult ßies of D. radicum emerging from diapausing pupae start to lay eggs in mid-May and can generate up to four generations per year (Richard and Boivin 1994) depending on the geographic area and climatic conditions (Collier et al 1991). The timing and intensity of oviposition bouts are strongly inßuenced by temperature (Maynard Smith 1958, Costa-Lima et al 2010, Yamashita et al 2010.…”

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confidence: 98%

Oviposition Pattern of Early and Late-Emerging Genotypes ofDelia radicum(Diptera: Anthomyiidae) at Different Temperatures

Lepage¹,

Boivin²,

Brodeur³

et al. 2014

Environ Entomol

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The cabbage maggot, Delia radicum L., has a bimodal pattern of emergence caused by the presence in populations of early and late-emerging genotypes that differ in their pupal development time. These genotypes could also express different egg-laying strategies. To examine oviposition patterns between genotypes and, particularly, their response to temperature, the egg-laying activity of females and egg mortality from each genotype were evaluated at temperatures from 12 to 30°C. Several criteria were used to describe the oviposition pattern: longevity of females, preoviposition period, lifetime fecundity, number of oviposition bouts, duration and number of eggs for each oviposition bout, duration of an oviposition cycle, and time interval between oviposition bouts. All criteria were similar between genotypes, except the preoviposition period and time interval between oviposition bouts. The preoviposition period was 1-4 d longer for the early emerging genotype than for the late-emerging genotype at temperatures <25°C, but similar at temperatures ≥25°C. The time interval between oviposition bouts of early emerging genotype was a few hours longer than for the late-emerging genotype at all temperatures. All oviposition pattern criteria responded to temperature, except the duration of oviposition bouts (≍6.5 d) and egg mortality (≍11%). The duration of a bout could be a compromise between oogenesis duration and the risks associated with egg deposition. According to these results, early and late-emerging genotypes express similar egg-laying strategies for all temperatures tested.

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Possible impact of global warming on cabbage root fly (Delia radicum) activity in the UK

Cited by 41 publications

References 19 publications

Direct and indirect effects of climate change on St John's wort, Hypericum perforatum L. (Hypericaceae)

Direct and indirect effects of climate change on St John's wort, Hypericum perforatum L. (Hypericaceae)

The predicted impact of possible climatic change on virus-vector nematodes in Great Britain

Oviposition Pattern of Early and Late-Emerging Genotypes ofDelia radicum(Diptera: Anthomyiidae) at Different Temperatures

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