| Titre : | Bird Study 49 - MAR 2002 |
| Type de document : | Bulletin |
| Paru le : | 01/03/2002 |
Dépouillements
Article
Article
P. K. Holland, Auteur ;
D. W. Yalden, Auteur
Capsule A report of the failure of a population to recover from a catastrophic snow storm. Aims To examine why our study population of Common Sandpipers failed to recover from a sharp drop in 1989, caused by a severe late April snowstorm, when i[...]
Article
A. W. Brown, Auteur ;
L. M. Brown, Auteur
Capsule Survival rates 1981-98 were quantified between four growth stages, and related to habitat type and altitude. Aims To investigate variability, in Mute Swan productivity in relation to habitat type and altitude. Methods Cygnets were studie[...]
Article
P. LLoyd, Auteur ;
E. E. Plaganyi, Auteur
Capsule A recently developed observer-effects model gives better estimates than the survival model. Aims To compare the performance of the traditional survival model with that of an observer-effects model in estimating nesting success. Methods W[...]
Article
J. A. Pithon, Auteur ;
C. Dytham, Auteur
Capsule Of the three subpopulations, only the one west of London was increasing, with little spread. Aims To investigate the distribution and population dynamics of feral Ring-necked Parakeets in Great Britain. Methods County bird report records[...]
Article
S. R. Wotton, Auteur ;
I. Carter, Auteur ;
A. V. Cross, Auteur ;
B. Etheridge, Auteur ;
N. Snell, Auteur ;
K. Duffy, Auteur ;
R. Thorpe, Auteur ;
R. D. Gregory, Auteur
Capsule The first co-ordinated Red Kite survey across Britain since the reintroduction programme began in 1989, yields 430 breeding pairs. Aims To estimate the current size and extent of the British breeding population. Methods A complete census[...]
Article
J. Dierschke, Auteur
Capsule Seeds of plants from lower salt marsh communities are preferred, with insects less important. Methods Droppings of Shorelarks Eremophila alpestris, Snow Buntings Plectrophenax nivalis and Twites Carduelis flavirostris sampled in the Germ[...]



