0000000000333708
AUTHOR
Iris Solís
A higher incidence of moult–breeding overlap in great tits across time is linked to an increased frequency of second clutches: a possible effect of global warming?
The rise of temperatures due to global warming is related to a lengthening of the breeding season in many bird species. This allows more pairs to attempt two clutches within the breeding season, thus finishing their breeding activity later in the season and therefore potentially overlapping these with post–breeding moult. We tested whether this occurred in two Spanish great tit Parus major populations. The proportion of pairs laying second clutches increased from 1 % to 32 % over the study period in one of the populations (Sagunto, 1995–2019), while it did not change in the other (Quintos, 2006–2019; mean 5 %). We did not find any temporal trend for moult start date of late–breeding birds i…
Illegal Bird Hunting in Eastern Spain: A Declining Trend, But Still Worrying
La caza furtiva sigue siendo un problema de conservacion para muchas especies amenazadas, especialmente en la region mediterranea. En este trabajo se ofrecen datos cuantitativos de aves no cinegeticas ingresadas por disparo en los centros de recuperacion de fauna salvaje de la Comunidad Valenciana (este de Espana) a lo largo de un periodo de 25 anos (1991-2015). Un total de 2,076 aves no cinegeticas, de 101 especies diferentes, ingresaron por esta causa, incluyendo 112 ejemplares pertenecientes a 17 especies amenazadas. Las aves rapaces fueron el grupo mas afectado, sumando un 74% del total de registros. El numero de ingresos anuales guardo una relacion positiva con el numero de licencias d…