Sprunghafter Anstieg von Brutstörungen bei Höhlenbrütern

Schmidt, Karl‐Heinz; Zitzmann, Annette

doi:10.1007/bf01647140

Cited by 13 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reduced egg size and clutch volume Reduced egg size and hatching success (no. fledged per nestbox) McNicol (1988) St. Louis andBarlow (1993) Great Tit Incubating empty nests Schmidt and Zitzmann (1990), Winkel and Hudde (1990), Zang (1998) Reduced clutch and egg size and abnormal shell structure Carlsson et al (1991), Weimer and Schmidt (1998) Eggshell defects and clutch desertion , Pinxten and Eens (1997)…”

Section: Tree Swallowmentioning

confidence: 99%

“…Reduced breeding success and reduced number of fledglings Dekhuijzen and Schuijl (1996) Incubating empty nests Schmidt and Zitzmann (1990) Wood Nuthatch Thin-shelled eggs Drent and Woldendorp (1989) White-throated Dipper Thin-shelled eggs Ormerod et al (1991) Meadow Pipit Anthus pratensis Thin-shelled eggs Bureß and Weidinger (2001) Eastern Kingbird Tyranus tyranus Retarded laying date, reduced clutch and brood size, reduced hatching success and eggs with thin, permeable shells Glooschenko et al (1986) persistent decline of overall breeding performance that is only detected after many decades of sustained monitoring (e.g. Crick & Sparks 1999).…”

Section: Blue Titmentioning

confidence: 99%

See 1 more Smart Citation

Calcium supplementation of breeding birds: directions for future research

Reynolds

Mänd

Tilgar

2004

Ibis

View full text Add to dashboard Cite

Calcium is an essential nutrient for avian reproduction. Calcium-rich foods are consumed by breeding birds for production of eggshells and for provisioning chicks that are mineralizing skeletal tissues. A number of studies have documented calcium-limited reproduction, and calcium supplementation has been employed over the last decade to demonstrate degrees, causes and consequences of calcium limitation. However, supplementation studies have produced equivocal findings resulting from an absence of calcium limitation in the study species, a poorly designed supplementation procedure or both. Prior to effective calcium supplementation, many factors need to be considered. Calcium-limited breeding in birds can only be detected by monitoring breeding attempts for more than one year and by ensuring that the measured breeding parameters are sensitive to calcium availability. Natural calcium availability needs to be estimated, and daily calcium budgets for the appropriate reproductive stages determined for the study species. Most crucially, if calcium limitation of breeding is caused by secondary calcium limitation (e.g. through heavy metal toxicity), calcium supplementation will probably be ineffective. Effective calcium supplementation will then be achieved through careful planning -a study over several years using appropriate supplements (i.e. naturally occurring ones used by breeding birds), applied at the appropriate time of year (i.e. prelaying and/or chick-rearing phases) and using a response variable that is highly sensitive to calcium availability. If properly planned and performed, calcium supplementation is a cost-effective and potent tool for the study of bird breeding biology.

show abstract

Section: Tree Swallowmentioning

confidence: 99%

Section: Blue Titmentioning

confidence: 99%

Calcium supplementation of breeding birds: directions for future research

Reynolds

Mänd

Tilgar

2004

Ibis

View full text Add to dashboard Cite

show abstract

“…It has been stated recently that calcium availability limits breeding success of passerines in areas with calcium-poor soils Drent 1997). There is growing evidence of the occurrence of eggshell defects and associated laying irregularities in acidified areas in Europe and North America (Glooschenko et al 1986, Ormerod et al 1988, Drent and Woldendorp 1989, Schmidt 1990, Winkel and Hudde 1990, Carlsson et al 1991, St. Louis and Barlow 1993, Nybo et al 1997. However, few studies were aimed at investigating the effects on nestling birds of calcium deficiency in acidified areas (Ormerod et al 1991, St. Louis and Barlow 1993, Graveland and Gijzen 1994.…”

mentioning

confidence: 99%

Estimation of calcium intake by Meadow Pipit nestlings in an acidified area

Bureš¹,

Weidinger²

2000

Journal of Avian Biology

View full text Add to dashboard Cite

Calcium availability might limit reproductive output in birds either by effects on eggshell formation or on skeletal growth of nestlings. Quantitative data on calcium intake by nestlings of free‐living passerines are needed to test the second hypothesis. In an acidified area of the Jeseníky Mountains (Czech Republic), estimates were made of calcium requirements and intake in Meadow Pipit Anthus pratensis nestlings during the nestling period. Analyses of nestling diet, determined by neck ligatures, showed that only snail shells were an important source of calcium. During the whole nestling period dry matter intake per nestling was 31.1 g, of which snail shells contributed 0.626 g. The total calcium necessary for successful development of each nestling was estimated as 139.8 mg. Arthropods in the diet provided only 16% of the calcium requirement. However, sufficient calcium was ensured by intake of snails (mainly Arianta arbustorum), despite their low abundance in the area.

show abstract

Dietary Calcium Availability and Reproduction in Birds

Reynolds

Perrins²

2010

Current Ornithology Volume 17

View full text Add to dashboard Cite

Sprunghafter Anstieg von Brutstörungen bei Höhlenbrütern

Cited by 13 publications

References 0 publications

Calcium supplementation of breeding birds: directions for future research

Calcium supplementation of breeding birds: directions for future research

Estimation of calcium intake by Meadow Pipit nestlings in an acidified area

Dietary Calcium Availability and Reproduction in Birds

Contact Info

Product

Resources

About