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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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A comparative study on the food-locating ability of Helisoma duryi, Biomphalaria camerunensis and Bulinus truncatus (Pulmonata: Planorbidae).

Published online: 06 Mar 1993

Authors: Madsen, H.

Content type: Journal article

Journal title: Journal of Applied Ecology

Helisoma duryi has been suggested as a biological control agent against the snail intermediate hosts of schistosomes, Biomphalaria and Bulinus species...

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Reducing wounding of game by shotgun hunting: effects of a Danish action plan on pink-footed geese.

Published online: 18 Jul 2007

Authors: Noer, H. & Madsen, J. & Hartmann, P.

Content type: Journal article

Journal title: Journal of Applied Ecology

Shooting of game by shotgun inevitably leads to wounding of some individuals. Few attempts, however, have been made to quantify the numbers involved. ...

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Simulated field trials to evaluate the effect of Sargochromis codringtoni and Tilapia rendalli on snails in the presence and absence of aquatic plants.

Published online: 31 Oct 1997

Authors: Chimbari, M. J. & Madsen, H. & Ndamba, J.

Content type: Journal article

Journal title: Journal of Applied Ecology

Two cichlid fish were studied under semi-natural conditions to evaluate their potential as agents for the biological control of schistosome intermedia...

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Distribution of freshwater snails in irrigation schemes in the Sudan.

Published online: 02 Jun 1990

Authors: Madsen, H. & Daffalla, A. A. & Karoum, K. O. & Frandsen, F.

Content type: Journal article

Journal title: Journal of Applied Ecology

The distribution of aquatic macrophytes and of molluscan intermediate hosts of schistosomes in the following irrigation systems in the Sudan: the Gezi...

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