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handle: 10261/155669
[EN] The use of nestboxes to study secondary cavity nesting avian species has greatly improved the knowledge related to many fields of environmental sciences. The aim of this study has been to compare the breeding performance of Great Tits (Parus major) and Blue Tits (Cyanistes caeruleus) in two types of nestboxes that differ with regard to their shape and thermal properties. Both nestbox types were placed in the same area to avoid confounding factors. There were significant differences between the extreme values of temperature and relative humidity obtained for the two nestbox types, and this was also the case in their daily patterns. Secondary hole-nesting birds appear to prefer breeding in woodcrete nestboxes. Nest predation was, however, significantly greater in woodcrete nestboxes. The nest height was significantly higher in woodcrete nestboxes, as was the danger distance between the nest cup and the entrance hole, which could account for the fact that Great Tits prefer this type of nestbox. The laying date was earlier in woodcrete boxes, but nestbox type did not influence clutch size. However, the eggs of both species were significantly smaller in woodcrete boxes. Breeding success was worse in woodcrete nestboxes. Nestbox type also affected the incubation pattern in both species, and attentiveness was significantly diminished in woodcrete nestboxes. This study reinforces the idea that the type of nestbox used in avian studies is not a trivial issue and may have strong biological effects on avian populations. It is important to take this into account when nestboxes are used as management measures for bird conservation.
[GE] Die Benutzung von Nistkästen für Studien über sekundäre Höhlenbrüter hat zur Weiterentwicklung vieler Bereiche der Biowissenschaften beigetragen. Das Ziel der vorliegenden Studie war der Vergleich der Brutleistung der Kohlmeise (Parus major) und der Blaumeise (Cyanistes caeruleus) in zwei Nistkastentypen mit unterschiedlicher Form und thermischen Eigenschaften. Beide Nistkastentypen wurden in derselben Gegend positioniert, um verfälschende Faktoren zu vermeiden. Es wurden signifikante Unterschiede zwischen den maximalen und minimalen Temperaturen sowie zwischen der relativen Luftfeuchtigkeit gemessen, und dies betraf auch deren Tageschwankungen. Beide Arten bevorzugten die Holzbetonnistkästen. Nestraub war aber signifikant höher in den Holzbetonkästen. Die Nesthöhe war in Holzbetonkästen signifikant größer, ebenso die Distanz zwischen Eingang und das Nest. Dies könnte einer der Gründe sein, dass Kohlmeisen diesen Typ von Nistkasten präferieren. Der Legebeginn war in Holzbetonkästen früher; der Nistkastentyp hatte aber keinen Einfluss auf die Gelegegröße. Allerdings waren die Eier beider Arten in den Holzbetonkästen signifikant kleiner und der Bruterfolg war geringer in den Holzbetonkästen. Der Nistkastentyp beeinflusste auch das Bebrütungsmuster beider Arten und die Aufmerksamkeit der Brutvögel am Nest war geringer bei Holzbetonkästen. Diese Studie unterstützt die Annahme, dass der Typ des Nistkastens keine triviale Rolle in ornithologischen Studien spielt und große biologische Einflüsse haben kann. Dies ist zu berücksichtigen, wenn Nistkästen im Vogelschutz eingesetzt werden.
Funding was provided by the MINECO (CGL2010-21933-C02-01; CGL2013-48001-C02-1P), the JCCM and the European Social Fund (POIC10-0269-7632).
Peer Reviewed
Temperatures, Predation, Nest architecture, Woodcrete, Incubation, Microclimate
Temperatures, Predation, Nest architecture, Woodcrete, Incubation, Microclimate
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