Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Effects of habitat on breeding success in a declining migrant songbird: the case of Pied Flycatcher Ficedula hypoleuca

100%

Goodenough A. E.

Acta Ornithologica

2014

tom 49

nr 2

Variation in the relationship between lay date and clutch size in three cavity-nesting woodland passerines

51%

Goodenough A. E., Elliot S. L., Maitland D. P., Hart A. G.

Acta Ornithologica

2009

tom 44

nr 1

Clutch sizes of many single-brooded birds decrease as the breeding season progresses. This decrease is usually quantified using data from several years, an approach that would mask any annual variation. We used 15 years of data from 295 nestboxes occupied by Blue Tit, Great Tit and Pied Flycatcher to determine whether the strength of the relationship between lay date and clutch size is consistent, or whether it varies annually. Both lay date and year were strong predictors of clutch size for all species. However, Generalised Linear Modelling revealed an interaction between lay date and year in the prediction of clutch size, indicating that the strength of the relationship between lay date and clutch size varied between years. Multilevel modelling was used to establish proximate factors that may be responsible for annual variability. Factors affecting the relationship between lay date and clutch size were species-specific. For Blue Tits, seasonal decline in clutch size was steepest when the density of all cavity-nesting species was high (47% variance explained). For Great Tits, decline was steepest in "early" seasons, particularly when density was high (32% variance explained), and for Pied Flycatchers, decline was steepest in warmer years (33% variance explained). Thus annually variable factors appear to influence not only breeding phenology and clutch size individually, but also the relationship between these variables.

The design of artificial nestboxes for the study of secondary hole-nesting birds: a review of methodological inconsistencies and potential biases

14%

Lambrechts M. M., Adriaensen F., Ardia D. R., Artemyev A. V., Atienzar F., Banbura J., Barba E., Bouvier J.-C., Camprodon J., Cooper C. B., Dawson R. D., Eens M., Eeva T., Faivre B., Garamszegi L. Z., Goodenough A. E., Gosler A. G., Gregoire A., Griffith S. C., Gustafsson L., Johnson L. S., Kania W., Keiss O., Llambias P. E., Mainwaring M. C., Mand R., Massa B., Mazgajski T. D., Moller A. P., Moreno J., Naef-Daenzer B., Nilsson J.-A., Norte A. C., Orell M., Otter K. A., Park C. R., Perrins C. M., Pinowski J., Porkert J., Potti J., Remes V., Richner H., Rytkonen S., Shiao M.-T., Silverin B., Slagsvold T., Smith H. G., Sorace A., Stenning M. J., Stewart I., Thompson C. F., Tryjanowski P., Torok J., van Noordwijk A. J., Winkler D. W., Ziane N.

Acta Ornithologica

2010

tom 45

nr 1

Ograniczanie wyników

Wyniki wyszukiwania

Effects of habitat on breeding success in a declining migrant songbird: the case of Pied Flycatcher Ficedula hypoleuca

Variation in the relationship between lay date and clutch size in three cavity-nesting woodland passerines

The design of artificial nestboxes for the study of secondary hole-nesting birds: a review of methodological inconsistencies and potential biases