Corys Shearwater (Calonectris diomedea) Science Article 2 abstract Although aberrant colourations occur in a great variety of animal species, their frequency of occurrence is low. Here, we report the first two observations of melanistic Cory’s Shearwaters Calonectris diomedea, in the Azores archipelago and on the Canary Islands. Because dark plumages may be associated with subordinate […]
THE INFLUENCE OF NEIGHBOURS ON BREEDING SYNCHRONY INCORY’S SHEARWATER CALONECTRIS DIOMEDEA
Corys Shearwater (Calonectris diomedea) Science Article 1 abstract The influence of neighbours on breeding synchrony in Cory’s Shearwater Calonectris diomedea J-L. Mougin, C. Jouanin, M-C. Mougin & F. Roux, Marine Ornithology 29: 51-56 Download article download full text (pdf)
Annual survival rates of adult male Corsican Nuthatches Sitta whiteheadi
Corsican Nuthatch (Sitta whiteheadi) Science Article 1 abstract The endemic Corsican Nuthatch Sitta whiteheadi population is small and currently restricted to mountain forests of Corsican Pine Pinus nigra laricio. An estimate of annual survival rate is an important parameter to allow evaluation of extinction risk. Adult Corsican Nuthatches were colour-ringed and resighted on territory in […]
Kwartelkoningen in Nederland in 2005.
Corn Crake (Crex crex) Science Article 6 abstract After a population recovery in 1997, efforts to protect Corncrakes in the Netherlands have increased recently. Since 2001, a national conservation scheme is carried out by Vogelbescherming Nederland (BirdLife The Netherlands), SOVON Vogelonderzoek Nederland (Dutch Centre for Field Ornithology), the Ministry of Agriculture, Fisheries and Food Quality […]
International corncrake monitoring
Corn Crake (Crex crex) Science Article 9 abstract An International Corncrake Monitoring Scheme is suggested in order to follow the populationtrend of Corncrakes affected by large-scale changes in land-use in Central and EasternEuropean Countries. A low cost and relatively low effort monitoring method is described inthis paper. Corncrake experts in all breeding range countries are […]
Kwartelkoningen in Nederland in 2004
Corn Crake (Crex crex) Science Article 7 abstract After a population recovery in 1997, efforts to protect Corncrakes in the Netherlands have increasedrecently. Since 2001, a national conservation scheme is carried out by Vogelbescherming Nederland(BirdLife The Netherlands), SOVON Vogelonderzoek Nederland (Dutch Centre for FieldOrnithology), the Ministry of Agriculture, Fisheries and Food Quality and several localgovernmenmental […]
International Single Species Action Planfor the Conservation of the Corncrake
Corn Crake (Crex crex) Science Article 11 abstract The Corncrake is considered ‘near threatened’ worldwide. It is included in Annex I of the EU Bird Directive, Appendix II of the Bern Convention and Appendix II of the Bonn Convention. Corncrakes breed widely across Eurasia, from the Atlantic to western Siberia. The core wintering area is […]
Analyse van kerngebieden van Kwartelkoningen in Nederland in 1999 en 2000
Corn Crake (Crex crex) Science Article 8 abstract In het kader van de Bescherming Kwartelkoning 2001 (Gerritsen et al. 2001) is door SOVONVogelonderzoek Nederland een overzicht gemaakt van de gebieden die in Nederland van belang zijnvoor het voorkomen van de Kwartelkoning. Doel van deze analyse was het in kaart brengen van diegebieden die van nationale […]
Influx van Kwartelkoningen Crex crex in Nederland in 1998
Corn Crake (Crex crex) Science Article 4 abstract Halverwege de jaren negentig leek het doek definitief gevallen voor de Nederlandse populatie Kwartelkoningen. Het broedbestand telde nog hooguit 60 territoria en zou gezien de ontwikkelingen in voorgaande jaren waarschijnlijk snel verder afnemen. Groot was dan ook de verrassing toen in 1997 uit het niets meer dan […]
Effects of season, plasma testosterone and body size on corncrake (Crex crex) call rhythm.
Corn Crake (Crex crex) Science Article 3 abstract We tested whether the temporal parameters of corncrake (Crex crex) call change seasonally and/or individually. We defined a new, compound variable called RHYTHM, which quantitatively describes how corncrake call is perceived. Temporal parameters of calls, including RHYTHM, were significantly associated with both the time within the breeding […]