Blue tits
A consistent long-lasting pattern of spatial variation in egg size and shape in blue tits (Cyanistes caeruleus)
... of blue tits are available in the literature, whereas there are a few reports concerning different populations of another parid species, the great ...great tits in Estonia; a significant difference ...
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Is testosterone immunosuppressive in a condition dependent manner? An experimental test in blue tits
... and is consequently suppressed or alternatively it may be more important to have a robust response during the breeding season than during the moult. Anti-SRBC antibody responses were also higher in spring than during ...
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Female attractiveness affects paternal investment: experimental evidence for male differential allocation in blue tits
... The UV reflectance of the crown plumage of female blue tits significantly affected male investment in feeding nestlings. Males made less frequent feeding trips when paired with UV-reduced females, as ...
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Environmental effects on parental care visitation patterns in blue tits cyanistes caeruleus
... of blue tits varies from 18% of nest boxes at low altitude, and declines to 4% at high altitude (unpublished data), leading to lower densities at higher altitudes, similar to general patterns of occupancy ...
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Breeding dispersal and parental care in blue tits (Cyanistes caeruleus)
... the blue tit does not undergo breeding dispersal in response to either habitat quality, or pre-dispersal reproductive ...female blue tits do use their past reproductive success to decide when to ...
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Intra specific variation in wing morphology and its impact on take off performance in blue tits (Cyanistes caeruleus) during escape flights
... Diurnal and seasonal increases in body mass and seasonal reductions in wing area may compromise a bird ’ s ability to escape, as less of the power available from the flight muscles can be used to accelerate and elevate ...
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Brood size constrains the development of endothermy in blue tits
... on blue tit (Cyanistes caeruleus) nestlings in the field, to study how different experimental brood sizes affected the development of endothermy in individual nestlings and the thermal environment experienced by ...
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The singing behaviour of coal tits (Parus ater)
... arise when they are isolated from each other. Birds in the two populations will certainly have developed their songs independently from each other, and thus such differences may be expected. Further studies, however, ...
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Altitudinal variation in haemosporidian parasite distribution in great tit populations
... great tits can be found at elevations of up to 1900m in the Alps, but is more of a lowland species, preferring mixed forest types and even being more partial to fragmented landscapes than dense pure deciduous ...
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Mutzel, Ariane (2013): The role of parental care in shaping personality-related variation in reproductive success in free-living passerines. Dissertation, LMU München: Fakultät für Biologie
... We tested the response of pairs of blue tits towards potential nest predators when nestlings were either 12 (group 1) or 13 (group 2) days old (Table 1). We did this by presenting a taxidermic model of a ...
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Collective decision making and social interaction rules in mixed-species flocks of songbirds
... Great tits, Parus major, blue tits, Cyanistes caer- uleus, marsh tits, Peocile palustris, coal tits, Periparus ater, and Eurasian nuthatches, Sitta europaea, were caught in mist nets ...
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Sparrowhawk movement, calling, and presence of dead conspecifics differentially impact blue tit (Cyanistes caeruleus) vocal and behavioral mobbing responses
... different kinds and levels of threat (Manser et al. 2002; Templeton et al. 2005). The level of threat a predator poses can also vary with predator features (e.g., hunger levels; Brown and Schwarzbauer 2001), across ...
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Genetic Variation and Causes of Genotype-Environment Interaction in the Body Size of Blue Tit (Parus caeruleus)
... nestling blue tits (Parus caeruleus) by raising full sibs in artificially reduced and enlarged broods, corresponding to good and poor feeding regimens, ...
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The role of UV in crab spider signals: effects on perception by prey and predators
... our blue-green-red-trichromatic visual system (Chittka et ...and blue tits, the peak spectral absorbance of their photoreceptors lies in different regions of the ...of blue tits is ...
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Avian haemosporidian persistence and co infection in great tits at the individual level
... individual blue tits (Cyanistes caeruleus) from the UK could be lost over time, Piersma and van der Velde [27] found that 23% of house martins (Delichon urbicum) in the Netherlands showed no haemosporidian ...
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Divorce in cooperatively breeding long-tailed tits: a consequence of inbreeding avoidance?
... long-tailed tits Aegithalos caudatus divorced between ...long-tailed tits’ unique association between divorce and reproductive success in the context of dispersal strategies for inbreeding ...
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Minimax isomorphism algorithm and primitive posets
... A b s t r a c t . The notion of minimax equivalence of posets, and a close notion of minimax isomorphism, introduced by the author are widely used in the study of quadratic Tits forms (in particular, for the ...
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Replicated analysis of the genetic architecture of quantitative traits in two wild great tit populations
... great tits, which have a very large effective population size and correspondingly low levels of LD, describing the genetic architecture of polygenic traits likely means genotyping many hundreds of thou- sands of ...
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Seasonal increase of nest height of the Silver-throated Tit (Aegithalos glaucogularis): can it reduce predation risk?
... Silver-throated Tits (Aegithalos glaucogularis) and asked whether the seasonal change of nest height was adaptive by simultaneously analyz- ing the seasonal variation of predation rates of the ...both Blue ...
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Helping in cooperatively breeding long-tailed tits: a test of Hamilton's rule.
... long-tailed tits must be the product of kin selection, a point that we have previously concluded [40] but not shown through the calculation of the terms of Hamilton’s ...
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