Search

All content is free for everyone to browse, read and share. You’ll find journal articles and non-peer reviewed grey literature. Type keywords into the search box or Use the filtering options below to browse the content.

Filter by...

Showing 6 results

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 ...

Read more

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 ...

Read more

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 ...

Read more

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...

Read more

Influence of feeding by Zeiraphera canadensis (Lepidoptera: Tortricidae) on growth of white spruce: larval density - damage and damage - shoot production relationships.

Published online: 29 Jun 1995

Authors: Carroll, A. L. & Quiring, D. T.

Content type: Journal article

Journal title: Journal of Applied Ecology

Field studies were conducted in New Brunswick, Canada, to evaluate the relationship between larval density of Zeiraphera canadensis and damage to curr...

Read more

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...

Read more