Arrival date, age and breeding success in white stork Ciconia ciconia

Vergara, Pablo M.; Aguirre, José I.; Fernández-Cruz, Manuel

doi:10.1111/j.2007.0908-8857.03983.x

Cited by 27 publications

(34 citation statements)

References 37 publications

(50 reference statements)

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“…A similar lack of relationship was also noted in Spain (Vergara et al 2007). We suspect this may be the consequence of generally higher chick productivity in Slovakia and Spain, for example compared to an average 1.8 chicks per nest in Poland (Tryjanowski & Sparks 2008).…”

Section: Discussionsupporting

confidence: 74%

Relationship between arrival date, hatching date and breeding success of the white stork (Ciconia ciconia) in Slovakia

et al. 2009

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Changes in the spring arrival dates of migrant birds have been reported from a range of locations and many authors have focused on long-term trends and their relationship to temperature and other climatic events. Perhaps more importantly, changed arrival dates may have consequences for the breeding dates of birds which strongly influence breeding success. In this paper we take the opportunity provided by a monitoring scheme of the white stork (Ciconia ciconia) to examine several features of the timing of arrival and breeding in relation to chick production in Slovakia during the period 1978-2002. First arrival dates ranged from 5 th March to 30 th April, and hatching dates varied between 26 th April and 8 th July. Generally, early arriving pairs started breeding earlier and a shorter interval between the arrival of the first partner and breeding, expressed here as hatching date, resulted in higher breeding success.

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Section: Discussionsupporting

confidence: 74%

Relationship between arrival date, hatching date and breeding success of the white stork (Ciconia ciconia) in Slovakia

et al. 2009

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“…It was demonstrated that foraging distance of white stork increases over the course of the season, as the food gradually depletes in the close vicinity of nests due to its over-exploitation by nest owners (Alonso et al 1991). In conclusion, providing that the timing of arrival correlates with laying dates as was demonstrated in other stork populations (Tryjanowski et al 2004;Vergara et al 2007), delayed arrival at breeding grounds may be associated with raising offspring under less favourable photoperiod. Such changes are expected to bring negative fitness consequences by causing serious time-limitations of foraging by stork parents and, possibly, by increasing the intensity of interference competition between neighbouring pairs.…”

Section: Discussionmentioning

confidence: 60%

Timing of arrival at breeding grounds determines spatial patterns of productivity within the population of white stork (Ciconia ciconia)

2013

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Early arrival at breeding grounds have important fitness consequences for migratory birds, both at individual and population level. The aim of this study was to investigate how the timing of arrival at the breeding territories affects the spatial patterns of reproductive success within a population of white storks (Ciconia ciconia). Data were gathered annually for ca. 200 pairs of storks breeding in central Poland between 1994 and 2011. Geostatistical analysis of data indicated that in years of delayed arrival of the population (measured by the first quartile arrival date), the reproductive output of storks was negatively autocorrelated, which indicated that there was a tendency for pairs of high breeding success to neighbour with pairs of low success. By contrast, in years when first storks returned in early dates to the breeding grounds, their reproductive success did not show any kind of spatial autocorrelation. These results suggest that delayed return of the first-arriving storks of the population may increase intensity of intra-specific competition to the level at which high-quality breeding pairs monopolize most of available resources at the expense of neighbouring lowquality pairs, which have lower reproductive success as a consequence. Such hypothesis was further supported with the analysis of nesting densities, showing that the latearriving breeding pairs incurred greater fitness costs (or derived lower fitness benefits) while breeding in high densities comparatively to the early-arriving conspecifics.

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“…Both et al 2005), but the majority of studies that looked into this issue found that, as expected, the timing of arrival and breeding are correlated and have an effect on breeding success (e.g. Vergara et al 2007). Our results show no correlation between the timing of the staging period and the timing of either arrival or breeding.…”

Section: Discussionmentioning

confidence: 80%

“…Individual differences in migratory timing can also be explained by age or systematic differences between sexes (Vergara et al 2007;Cooper et al 2009). In most migrants, the males are earlier than females, a condition known as protandry (Morbey and Ydenberg 2001).…”

Section: Introductionmentioning

confidence: 99%

Repeatable timing of northward departure, arrival and breeding in Black-tailed Godwits Limosa l. limosa, but no domino effects

et al. 2011

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When early breeding is advantageous, migrants underway to the breeding areas may be time stressed. The timing of sequential events such as migration and breeding is expected to be correlated because of a ''domino effect'', and would be of particular biological importance if timings are repeatable within individuals between years. We studied a colour-marked population of Black-tailed Godwits Limosa l. limosa both on staging areas in Portugal and on breeding areas in The Netherlands. For each individual, we measured the timing of the staging period, the arrival date on the breeding area and the egg laying date. We measured average egg volume as a measure of reproductive investment. The date of departure from the staging areas, the arrival date on the breeding areas, and the egg laying date were repeatable among years in individual Black-tailed Godwits. The arrival dates of paired males and females and the average annual male and female arrival dates were correlated. The dates of departure from Portugal, arrival in The Netherlands, and egg laying were not correlated. Earlier clutches had larger eggs than late clutches. If the length of the individually available pre-laying period is accounted for, early arriving birds spent more time on the breeding grounds before laying than late arriving birds. The repeatability of the itineraries and the correlation between arrival timing of males and females are consistent with observations in other migrants. Despite evidence for early breeding being advantageous, we found no evidence of a ''domino effect''.

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Arrival date, age and breeding success in white stork Ciconia ciconia

Cited by 27 publications

References 37 publications

Relationship between arrival date, hatching date and breeding success of the white stork (Ciconia ciconia) in Slovakia

Relationship between arrival date, hatching date and breeding success of the white stork (Ciconia ciconia) in Slovakia

Timing of arrival at breeding grounds determines spatial patterns of productivity within the population of white stork (Ciconia ciconia)

Repeatable timing of northward departure, arrival and breeding in Black-tailed Godwits Limosa l. limosa, but no domino effects

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