Coot (Fulica atra) Science Article 4 abstract Chick survival in the European Coot typically shows a convex seasonal pattern. Previous experiments revealed that this pattern is directly linked to hatching date and that food supply within the first ten days after hatching is a causal factor in this relationship. However, the precise mechanism through which […]
Trends in numbers of the Coot (Fulica atra)in the Czech Republic in 1988-2000
Coot (Fulica atra) Science Article 2 abstract Common Coot Fulica atra is one of thecommonest waterbird species in the CzechRepublic. The total size of the breedingpopulation was estimated between 1985and 1989 as 30 000 to 60 000 bp (breedingpairs) (Stastn
Wintering swans Cygnus spp. and Coot Fulica atra in the Oresund,South Sweden, in relation to available food recources
Coot (Fulica atra) Science Article 3 abstract In connection with the building of a Fixed Link (bridge-arti.cial island-tunnel) between Sweden and Denmark intensive studies of waterfowl and benthic fauna and .ora in the Oresund were undertaken as a part of the Environmental Impact Assessment Study. This paper analysis the occurrences of staging and wintering herbivores […]
Size and quality of the Coot Fulica atra territory in relation to age of its tenants and neighbors.
Coot (Fulica atra) Science Article 5 abstract The size and composition of the breeding territory of the Coot Fulica atra has been studied in relation to the age of the breeding birds, the age of their neighbours, and the date of arrival in the territory. Old pairs arrive earlier than young pairs. Old pairs have […]
Dual functions of a melanin-based ornamentin the common yellowthroat
Common Yellowthroat (Geothlypis trichas) Science Article 1 abstract Melanin-based ornaments often function as signals in male-male competition, whereas carotenoid-based ornaments appear to be important in female mate choice. This difference in function is thought to occur because carotenoid pigments are more costly to produce than melanins and are thus more reliable indicators of male quality. […]
Male mask size is correlated with mating success in the commonyellowthroat
Common Yellowthroat (Geothlypis trichas) Science Article 2 abstract Many socially monogamous species have sexually dimorphic traits. The evolution of these traits is puzzling as sexual selection is often thought to be relatively weak in monogamous species KEVIN J. THUSIUS et al., ANIMAL BEHAVIOUR, 2001, 62, 435-446 Download article download full text (pdf)
The duration of parental care in the Common Tody Flycatcher
Common Tody-Flycatcher (Todirostrum cinereum) Science Article 1 abstract The nesting habits of the Common Tody Flycatcher (Todirostrum cinereum)are now well known. Skutch (1930,Auk 47:313-322;1960, Pacific Coast Avifauna 34: 475-489) published two detailed life histories of the race finitimum in Panama and Costa Rica, and I (Haverschmidt 1968, Birds of Surinam, Edinburgh, Oliver and Boyd, p. […]
Annahme von Nisthilfen durch den Mauersegler (Apus apus) in Berlin
Common Swift (Apus apus) Science Article 3 abstract We present results of the inspection of 1915 nest boxes for Common Swifts in Berlin in 2002. The aim of the studyis to determine factors influencing acceptance of artificial nest boxes. Two significant influences were thedistance of nest boxes from the original breeding grounds and the structure […]
Ultrastructure of the spermatozoon of Apus apus (Linnaeus1758), the common swift (Aves; Apodiformes; Apodidae), withphylogenetic implications
Common Swift (Apus apus) Science Article 4 abstract The spermatozoon of Apus apus is typical of non-passerines in many respects. Features shared with palaeognaths and the Galloanserae are the conical acrosome, shorter than the nucleus Barrie G. M. Jamieson and Sandro Tripepi, Acta Zoologica (Stockholm) 86: 239-244 (October 2005) Download article download full text (pdf)
Long-term decline in Common Swift Apus apus annual breeding success may be related to weather conditions
Common Swift (Apus apus) Science Article 1 abstract No abstract available (conversion errors, download pdf J. Rajchard, J. Prochazka & P. Kindlmann, Ornis Fennica 83:66-72. 2006 Download article download full text (pdf)