Wyniki wyszukiwania

1

Behaviour of sows housed in periparturient period with or without straw bedding

100%

Klocek C., Nowicki J., Koczanowski J.

Annals of Animal Science. Supplement

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2002

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nr 1

2

Nest construction rate and stress in female Pied Flycatchers Ficedula hypoleuca

84%

Moreno J., Martinez J., Corral C., Lobato E., Merino S., Morales J., Martinez-de la Puente J., Tomas G.

Acta Ornithologica

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2008

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tom 43

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nr 1

57-64

Nest building effort has received scant attention in the literature although it may involve costs which can be detected as physiological stress. We prolonged nest construction effort in a population of Spanish Pied Flycatchers by removing nests from nest-boxes and forcing females to build a second nest. In comparison with control nests, the experimental females had to work for longer periods and accumulate more nest material, but nest construction rates (g of nest material per day of construction) were not affected. There was a positive association of clutch mass with nest construction rate. To measure physiological stress, we captured females shortly after laying to obtain blood samples for heat-shock protein quantification. Heat-shock proteins quantify stress at cell level. The level of HSP60 in peripheral blood was positively associated with total nest construction rate (including second nests for experimental females), but not with laying date, clutch mass or experimental treatment. A third of the variation in the HSP60 level was explained by the nest construction rate. Fast nest builders are physiologically stressed, suggesting that the nest construction rate may constitute an index of female physiological performance.

3

Nest construction costs affect nestling growth: a field experiment in a cavity-neating passerine

84%

Moreno J., Lobato E., Gonzalez-Braojos S., Ruiz-de Castaneda R.

Acta Ornithologica

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2010

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tom 45

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nr 2

4

Behaviour of periparturient sows allowed freedom of movement in pens

84%

Klocek C., Szewczyk A., Nowicki J.

Roczniki Naukowe Zootechniki

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2000

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tom 27

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nr 2

5

The weight of female-built nests correlates with female but not male quality in the Blue Tit Cyanistes caeruleus

67%

Mainwaring M. C., Benskin C.McW.H., Hartley I. R.

Acta Ornithologica

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2008

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tom 43

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nr 1

43-48

Among bird species where only one parent constructs the nest, the "sexual display hypothesis" predicts that building behaviour and the structure of the completed nest is a post-pairing, sexually selected signal that informs the non-builder of her/his partner's quality and/or willingness to invest in reproduction. Moreover, the "differential allocation hypothesis" predicts that an individual's investment in parental behaviours, such as nest building, will vary in relation to the partner's quality. These hypotheses were examined in the socially monogamous, hole-breeding Blue Tit, a species in which the female alone builds nests. Parental quality was quantified by recording body size, feather mite load and age. The weight of nests was found to correlate positively with female head-bill length and feather mite load, but not with any indicators of male quality. This result is in accordance with the "sexual display" hypothesis, and demonstrates that nest size could be a form of intra-specific communication that helps inform the non-building partner of the builder's reproductive quality.

6

Coal Tits Periparus ater build larger nests than Blue Tits Cyanistes caeruleus and Great Tits Parus major living in the same Mediterranean coniferous woodland habitat

67%

Lambrechts M. M., Haurez J., Bodineau G., Gagliardi G., Maistre M., Perret P., Pihan P., Wilhelm B., Wilhelm J., Bernard C., Blondel J.

Acta Ornithologica

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2016

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tom 51

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nr 1

The size and shape of the nest are species-specific characteristics that are often associated with environmental factors at the time of breeding. Nests are expected to be larger or thicker in colder environments, although the relationships between nest design and weather differ between species. Here we present the results of an analysis of the external height of the nest wall in Paridae that accepted small standardized nesting boxes for breeding. The study populations were monitored in a relatively cold Mediterranean study area. We found that Coal Tits Periparus ater built higher external nest walls than Great Tits Parus major or Blue Tits Cyanistes caeruleus, after controlling for the first-egg date and clutch size which are assumed to reflect aspects of the quality of the nest builders. Our measures of nest size were not closely associated with the average ambient temperature, but nest walls tended to be shallower when there was more rain. Nest-shape asymmetry, as reflected in the difference in the external height of the nest measured closest to and farthest from the nest-chamber entrance, was observed in all three species, but the average asymmetry was highest in Coal Tits. In asymmetric nests, more nest material was added to the side that was closest to the front wall considered to be the coldest and least protected against harsh weather. Thus, nest size characteristics differ between three ecologically similar species inhabiting the same cavity type in the same coniferous woodland habitat, which would imply that different species do not respond in the same way to the same set of environmental factors.

7

Nestbox use and reproductive parameters of Tree Sparrows Passer montanus: are they affected by the presence of old nests?

67%

Garcia-Navas V., Arroyo L., Sanz J. J.

Acta Ornithologica

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2008

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tom 43

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nr 1

32-42

There is a controversy over the effects of old nest reuse on the breeding biology of hole nesters. Some authors have shown that the presence of old nest material could increase ectoparasite pressure and/or reduce cavity size, whereas others argue that it could facilitate nest-building and serve as an informative cue for breeding birds. However, the possible functions of old nests may not be limited to the reproductive period in burds that perform autumnal courtship or use nest cavities as shelters during the winter season, as is the case with the Tree Sparrow. The importance of the presence of old nest material on nest box choice during the non-breeding period and its implications on the subsequent breeding performance of this multi-brood species are assessed. Occupancy rates and reproductive parameters (such as phenology, clutch size, nestling condition, breeding success) were compared between woodcrete and wooden nest boxes with and without old nest material inside. During the non-breeding period no effect of box type or its content on nest box selection was discovered, but in spring it was found that the strong preference of birds for breeding in woodcrete nest boxes was independent of the presence of old nests. In relation to this latter point, evidence was found that old nest reuse could negatively affect the reproductive output of Tree Sparrows: clutches were laid later, nestlings had longer wings (which presumably fledged earlier) and reproductive success was lower in nest boxes containing old nest material. The results of this study suggest that, taking the non-breeding and breeding seasons as a whole, the accumulation of old nest material seems to be detrimental rather than advantageous to this species.

Ograniczanie wyników

Behaviour of sows housed in periparturient period with or without straw bedding

Nest construction rate and stress in female Pied Flycatchers Ficedula hypoleuca

Nest construction costs affect nestling growth: a field experiment in a cavity-neating passerine

Behaviour of periparturient sows allowed freedom of movement in pens

The weight of female-built nests correlates with female but not male quality in the Blue Tit Cyanistes caeruleus

Coal Tits Periparus ater build larger nests than Blue Tits Cyanistes caeruleus and Great Tits Parus major living in the same Mediterranean coniferous woodland habitat

Nestbox use and reproductive parameters of Tree Sparrows Passer montanus: are they affected by the presence of old nests?