Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Rudolf F. Verheyen"'
Publikováno v:
Ibis
We recorded the song of 25 male Starlings Sturnus vulgaris to investigate differences in song characteristics between yearling and older males. Older males had significantly larger repertoire sizes and sang significantly longer average song bouts tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ca3d76d94748828fe280302467c9deb
https://doi.org/10.1111/j.1474-919x.1992.tb07233.x
https://doi.org/10.1111/j.1474-919x.1992.tb07233.x
Publikováno v:
Ecotoxicology and environmental safety
Three spined sticklebacks (Gasterosteus aculeatus) were sampled from five different watercourses in Flanders (Belgium). Concentrations of cadmium, lead, copper, and zinc were measured in water, sediment, food, and fish tissues. Considered as food was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df1a1f7b5d8ba18869608cddd946c9e9
https://doi.org/10.1006/eesa.2000.2010
https://doi.org/10.1006/eesa.2000.2010
Publikováno v:
International Journal of Primatology. 21:445-465
In species in which paternal care has an important impact on the offspring's fitness, concealment of reproductive status has been proposed as a strategy employed by females to prevent males from practicing desertion and polygamy, which would then lea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44b7a482ce16bd17d35d17ec7173d2d8
https://doi.org/10.1023/a:1005439919150
https://doi.org/10.1023/a:1005439919150
Publikováno v:
Primates
In this study we provide new data on the duration of the inter-menstrual intervals of six captive female bonobos (Pan paniscus). We found that the mean duration of the inter-menstrual interval was about 34 days. This lies close to the average value o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77f07ac2d9e5f92b4b1505d4aa7a2606
https://doi.org/10.1007/bf02557552
https://doi.org/10.1007/bf02557552
Publikováno v:
Journal of vegetation science
Nitrogen, phosphorus and potassium were supplied to some Belgian fens of varying nutrient status and productivity. Plant growth in the lowest productive fen with a species-rich Caricion davallianae vegetation was strongly P-limited. N was ineffective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45047bdeace979e52d7f3c0f34308ce4
https://doi.org/10.2307/3237333
https://doi.org/10.2307/3237333
Publikováno v:
Biogeochemistry. 37:15-32
Intact rich fen soil cores with controlled water levels near the surface were installed in an open greenhouse. To simulate short term summer drought, water levels were lowered (20 cm) after two weeks in half of the cores (experimental cores) and rema
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::282a12890f57bd0027d008437f51a4a1
https://doi.org/10.1023/a:1005767505058
https://doi.org/10.1023/a:1005767505058
Publikováno v:
Vegetatio
The habitat of low growing, herbaceous rich-fen vegetation (Caricion davallianae) is now threatened throughout Western Europe. Its conservation, restoration and even recreation receives increasing attention. In the Campine area of Belgium a rich fen,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70873851a9f9c62309c9ab2d8ec0ecec
https://doi.org/10.1007/bf00047761
https://doi.org/10.1007/bf00047761
Publikováno v:
Environmental Toxicology and Chemistry. 15:1423-1428
The uptake of zinc by the freshwater midge larvae Chironomus riparius was studied as a function of salinity. Fourth instar larvae were exposed to a salinity range up to 10‰ by diluting chemically defined seawater with chemically defined river water
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84f005a721f8ba7ce7ca0fcbf63c1249
https://doi.org/10.1002/etc.5620150823
https://doi.org/10.1002/etc.5620150823
Publikováno v:
International journal of primatology
We examined (i) whether bonobos display a specific food-calling behavior when discovering a hidden food resource, (ii) whether the presence of competitors affects this behavior, and (iii) whether food quantity or gender influences its appearance. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41b5328e4e72439ae14e87eded9a3de3
https://doi.org/10.1007/bf02735448
https://doi.org/10.1007/bf02735448
Publikováno v:
Hydrobiologia
ResearcherID
ResearcherID
We present observations on the variability of sediment penetration depth by the Ponar grab sampler, which lead us to question the reliability of grab samples in the quantitative study of freshwater benthos. Penetration depth of the Petite Ponar grab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0ffefc0df05139304195f9db0a3cf47
https://doi.org/10.1007/bf00015507
https://doi.org/10.1007/bf00015507