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Diederik van Liere

Diederik van Liere
CABWIM consultancy · Director

PhD

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21
Publications
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475
Citations

Publications

Publications (21)
Article
Full-text available
Transmission of experience about prey and habitat supports the survival of next generation of wolves. Thus, the parent pack (PP) can affect whether young migrating wolves (loners) kill farm animals or choose to be in human environments, which generates human–wolf conflicts. Therefore, we researched whether the behavior of loners resembles PP behavi...
Article
Full-text available
The full article is available in issue 20 of Carnivore Damage Prevention News: http://www.protectiondestroupeaux.ch/fileadmin/doc/International/CDP_and_General_Infos/CDPNews20_Nov2020.pdf
Article
We aimed to characterize differences between sheep farms in wolf habitat in Slovenia that either suffered from wolf attacks (n=30) or not (n=30) during the pasture seasons 2008–2010. Main pasture season was from April until November. Median fenced pastures were 2.7ha and herd size was 93 sheep. The three-year period contained 288 attacks, mostly oc...
Article
Greylag geese (Anser anser) can cause serious damage to agricultural fields near wetlands that are attractive for resting and nesting but not for feeding. Alternative plantings or spraying fields may prevent goose damage. We randomly designed 64 plots in spring 2004 and prepared plantings of white clover (Trifolium repens), white clover with perenn...
Article
The introduction of N2-fixing white clover (Trifolium repens) in grassland is a management measure that may contribute to sustainable grassland systems by making them less dependent on inorganic fertilizers. However, little is known about the impact of this measure on soil biota and ecosystem services. We investigated earthworms, nematodes, bacteri...
Article
In een proef in het kader van het project Zorg voor zand wordt het verband tussen gewas, beworteling, bodemleven en bodem bevestigd. De biomassa van wormen in een puur klaverzode blijkt bijna 2 x zo hoog te zijn t.o.v. onbemest grasland, waardoor ook de klaver weer beter kan bewortelen
Article
Thirty beak-trimmed and thirty intact hens were reared in mixed groups and individually housed in battery cages; partial beak amputation took place 6 weeks after hatching. All hens were tested with a novel stimulus when they were 42 weeks old: a small paper sticker (36 mm2) was attached to the distal parts of the feathers at the back of the hen. It...
Article
After a prolonged experience with wood-shavings or with sand, 2 x 11 hens (Gallus gallus domesticus) were litter-deprived. Prior to the 7 to 8 day deprivation period feather samples were taken. This was repeated immediately after the deprivation had ended and right after the first bath in the familiar litter. Each feather was cut at the transition...
Article
Dustbathing in fowls (eg chickens, Gallus gallus) consists of tossing the litter onto and between the fluffed feathers and subsequently enclosing it by flattening the feathers. The proximal contact between litters like sand and peat, and the integument is intensified by rubbing the body. This is not the case in wood-shavings which adhere to the dis...
Article
During 21 weeks of sand deprivation, intact and beak-trimmed laying hens, Gallus gallus domesticus, dustbathed on a barren floor (sham-dustbathing). The amount of dustbathing increased during the experiment to the same level (in the intact hens) as in non-deprived control hens, or to a higher level (in the beak-trimmed hens). During deprivation, th...
Article
Laying hens oiled the plumage twice a day, while oiling behaviour consisted of a bout of five oilings (median value). During one oiling, a hen collected lipids from the preen gland with her bill and subsequently performed (as a median) five strokes or rubs over and through the feathers. The breast was oiled most, whereas during later oilings within...
Article
Full-text available
Dustbathing in laying hens ( Gallus gallus domesticus ) serves to remove excessive feather lipids which accumulate and become stale during dust deprivation. In addition and probably as a consequence of lipid removal the fluffiness of the downy feather parts is enhanced. A dustbath consists of appetitive tossings and consummatory rubbings. Its funct...
Article
Full-text available
The dustbathing behaviour of laying hens (Gallus gallus domesticus) is significantly influenced when either sand or woodshavings are offered as a dustbathing material. Hens that are familiar with both materials prefer sand over woodshavings as a dustbathing material. This preference is also indicated by the findings that hens increased their dustba...
Article
Laying hens, deprived of dust for 33 days, showed an average increase in amount of lipids on back feathers from 10.3 to 14.5 mg lipids per g feathers at the end of the dust-deprivation period. After the hens could dust-bathe again, the original level was restored within 2 days. Also the downy parts of these feathers appeared to be fluffier. Dust-ba...

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Projects (4)