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Showing 11 results

The role of different organo-chlorine compounds in the breeding of British sparrowhawks.

Published online: 01 Jan 1978

Authors: Newton, I. & Bogan, J.

Content type: Journal article

Journal title: Journal of Applied Ecology

Organochlorine levels and shell thickness indices varied little between eggs in the same clutch of Accipiter nisus in the UK, but they varied greatly ...

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Eggshell pigmentation indicates pesticide contamination.

Published online: 26 Mar 2008

Authors: Jagannath, A. & Shore, R. F. & Walker, L. A. & Ferns, P. N. & Gosler, A. G.

Content type: Journal article

Journal title: Journal of Applied Ecology

Persistent pesticide residues remain a significant environmental pollutant, reducing breeding success of predatory birds even where such pesticides ha...

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Changes attributed to pesticides in the nesting success of the sparrowhawk in Britain.

Published online: 01 Jan 1974

Authors: Newton, I.

Content type: Journal article

Journal title: Journal of Applied Ecology

The nesting success of the sparrowhawk (Accipiter nisus) in and near arable areas in Britain has declined since 1947, owing to increased egg-breakage ...

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Recovery of a sparrowhawk population in relation to declining pesticide contamination.

Published online: 03 Apr 1993

Authors: Newton, I. & Wyllie, I.

Content type: Journal article

Journal title: Journal of Applied Ecology

Sparrowhawks (Accipiter nisus) found dead in eastern England showed a significant reduction in HEOD (organochlorine pesticide residues derived from al...

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Trends and effects of organochlorine compounds in sparrowhawk eggs.

Published online: 05 Feb 1987

Authors: Newton, I. & Bogan, J. A. & Rothery, P.

Content type: Journal article

Journal title: Journal of Applied Ecology

A statistical study of breeding success, eggshell index, and DDE, HEOD and PCB levels in Accipiter nisus eggs collected from 17 areas in Britain durin...

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DDE-induced eggshell-thinning in the American kestrel: a comparison of the field situation and laboratory results.

Published online: 01 Jan 1976

Authors: Lincer, J. L.

Content type: Journal article

Journal title: Journal of Applied Ecology

Residues of DDE in kestrel eggs collected near Ithaca, New York, averaged 35, 42, 33 and 37 p.p.m. in 1969, 1970, 1971 and 1972, respectively. Based o...

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Changes attributable to pesticides in egg breakage frequency and eggshell thickness in some British birds.

Published online: 01 Jul 1970

Authors: Ratclife, D. A.

Content type: Journal article

Journal title: Journal of Applied Ecology

The following is virtually the author's summary. Since 1950, egg breakage has occurred with unprecedented frequency in the nests of peregrines (Falco ...

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A simple method of predicting DDE contamination and reproductive success of populations of DDE-sensitive species.

Published online: 01 Jan 1980

Authors: Fox, G. A.

Content type: Journal article

Journal title: Journal of Applied Ecology

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Habitat, female age, organo-chlorine compounds and breeding of European sparrowhawks.

Published online: 01 Jan 1980

Authors: Newton, I. & Marquiss, M. & Moss, D.

Content type: Journal article

Journal title: Journal of Applied Ecology

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Effect of calcium concentration on growth and egg laying of Helisoma duryi, Biomphalaria alexandrina, B. camerunensis and Bulinus truncatus (Gastropoda: Planorbidae).

Published online: 19 Apr 1988

Authors: Madsen, H.

Content type: Journal article

Journal title: Journal of Applied Ecology

In order to evaluate the potential of H. duryi to establish populations in schistosomiasis endemic areas, the response of H. duryi to calcium concentr...

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