Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Breeding Biology and Diet of the African Swallow-Tailed Kite (Chelictinia riocourii) in Senegal and Cameroon
Buij, R. ; Cavaillés, S. ; Mullié, W.C. - \ 2013
Journal of Raptor Research 47 (2013)1. - ISSN 0892-1016 - p. 41 - 53.
savanna - raptors - birds - hawk - populations - predation - survival - site
We studied the breeding biology of the African Swallow-tailed Kite (Chelictinia riocourii) in two study areas located 3400 km apart in the central (Cameroon) and western (Senegal) portions of the species' breeding range. With 110 nests in 2.8 km2 of suitable breeding habitat, Kousmar islet (23 km2) in Senegal supports the largest documented colony of African Swallow-tailed Kites known to date. Breeding kites in Senegal nested in a single large colony near a massive winter roost. In Cameroon, breeding colonies averaged seven pairs/colony, with nest densities of 0.3 nests/km2 in protected woodland and 0.9 nests/km2 in cultivated habitat. Egg-laying coincided with the end of the dry season in Cameroon, but eggs were recorded from the middle of the dry season in Senegal. Eggs hatched between April and June in both study sites in 2010, but from March 2012 in Senegal. The incubation period was estimated at 27–31 d based on two nests, and the fledging period was 32–35 d (n ¿=¿ 3 fledglings). Mean clutch size was 2.5 eggs (n ¿=¿ 32) in Cameroon and 2.1 in Senegal (n ¿=¿ 29); one clutch of four eggs was recorded in Cameroon. Nest success estimated with the Mayfield method was low at 17% in Cameroon and exceptionally low at 4% in Senegal, possibly related to a combination of suboptimal food conditions, high predation pressure, intraspecific aggression, and lack of experience among breeding pairs. Prey items at nests were made up primarily of lizards (30–54% of items) and insects (27–49%), notably grasshoppers, whereas the diet at the winter roost in Senegal was predominantly Orthoptera (55%) and Solifugids (43%). Our study suggested that African Swallow-tailed Kites were able to adapt to moderate land transformation near floodplains.
Dissoconiaceae associated with sooty blotch and flyspeck on fruits in China and the United States
Li, H.Y. ; Sun, G.Y. ; Zhai, X.R. ; Batzer, J.C. ; Mayfield, D.A. ; Crous, P.W. ; Groenewald, J.Z. ; Gleason, M.L. - \ 2012
Persoonia 28 (2012). - ISSN 0031-5850 - p. 113 - 125.
complex davidiellaceae - clustal-w - mycosphaerella - eucalyptus - apple - anamorphs - teratosphaeria - capnodiales - taxonomy - genera
Zasmidium angulare, a novel species of Mycosphaerellaceae, and several novel taxa that reside in Dissoconiaceae, were identified from a collection of apples and Cucurbita maxima (cv. Blue Hubbard) from China and the USA that exhibited sooty blotch and flyspeck (SBFS) signs on their host substrata. Morphology on fruit surfaces and in culture, and phylogenetic analyses of the nuclear ribosomal DNAs 28S and internal transcribed spacer regions, as well as partial translation elongation factor 1-alpha gene sequences in some cases, were used to delineate seven previously unidentified species and three known species. Pseudoveronaea was established as a new genus of Dissoconiaceae, represented by two species, P. ellipsoidea and P. obclavata. Although Pseudoveronaea was morphologically similar to Veronaea, these fungi clustered with Dissoconiaceae (Capnodiales) rather than Chaetothyriales (Herpotrichiellaceae). Ramichloridium mali comb. nov., and three novel species, R. cucurbitae, R. luteum and R. punctatum were closely related with R. apiculatum, which together formed a distinct subclade in Dissoconiaceae. Species of Dissoconium clustered in two well-supported clades supported by distinct morphological and cultural features. Subsequently Uwebraunia, a former synonym of Dissoconium, was resurrected for the one clade, with new combinations proposed for U. australiensis, U. commune, U. dekkeri and U. musae. Furthermore, we also reported that D. aciculare, Dissoconium sp., U. commune and U. dekkeri were associated with SBFS on apples.
Does the CAP boost rural development? An assessment with SAM analyses in UK and Dutch rural towns and their hinterlands
Leeuwen, M.G.A. van; Mayfield, L. - \ 2005
Characterization of MnII binding site mutants of manganese peroxidase.
Kishi, K. ; Kusters-van Someren, M. ; Mayfield, M.B. ; Sun, J. ; Loehr, T.M. ; Gold, M.H. - \ 1996
Biochemistry 35 (1996). - ISSN 0006-2960 - p. 8986 - 8994.
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