Prebreeding survival of Roseate TernsSterna dougalliivaries with sex, hatching order and hatching date

Ibis ◽  
2016 ◽  
Vol 158 (2) ◽  
pp. 327-334 ◽  
Author(s):  
Ian C. T. Nisbet ◽  
David Monticelli ◽  
Jeffrey A. Spendelow ◽  
Patricia Szczys
Keyword(s):  
Hatching Date ◽  
Hatching Order

scholarly journals Proximate Factors Determining Age and Mass at Fledging in Rhinoceros Auklets (Cerorhinca Monocerata): Intra- and Interyear Variations

The Auk ◽  
2004 ◽  
Vol 121 (2) ◽  
pp. 452-462 ◽  
Author(s):  
Tomohiro Deguchi ◽  
Akinori Takahashi ◽  
Yutaka Watanuki
Keyword(s):  
Growth Rate ◽  
Wing Length ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Major Effect ◽  
Timing Of Breeding ◽  
Hatching Date ◽  
Cerorhinca Monocerata ◽  
Parental Provisioning ◽  
Underlying Mechanisms

Abstract In alcids, growth rate and hatching date of chicks appear to affect fledging age and mass. Underlying mechanisms are hypothesized to be (1) critical wing length at fledging for postfledging survival, (2) synchronization of fledging to dilute predation risk, and (3) variable parental provisioning according to timing of breeding. To elucidate the effects of growth rate and hatching date on fledging age and mass, and to test those mechanistic hypotheses, we measured chick growth and fledging periods in Rhinoceros Auklets (Cerorhinca monocerata) at Teuri Island from 1995 to 2000. The multiple-linear regression analysis showed that intrayear variations of fledging age and mass were explained by growth rate or hatching date in five out of six years. Faster-growing chicks fledged younger and heavier, and earlier-hatched chicks fledged older and heavier. Consequently, no apparent correlation between fledging age and mass was observed in five out of six years. Analysis of interyear variation showed a negative correlation between fledging age and mass, which indicates that growth rates rather than hatching dates had a major effect. Wing length at fledging was independent of growth in mass. More than 80% of chicks fledged when they attained a narrow range of wing length (130–150 mm), presumably because they remained in their nests until they attained the critical wing length. In five out of six years, the chicks did not synchronize timing of fledging relative to timing of hatching. Later-hatched chicks attained lighter peak masses and at younger ages, which may indicate that their parents decreased provisioning rates when the chicks were still young. We suggest that (1) critical wing length at fledging and (2) variable parental provisioning according to timing of breeding could be underlying mechanisms determining these relationships between fledging age and mass.

Weather conditions, brood size and hatching order affect Common SwiftApus apusnestlings’ survival and growth

Bird Study ◽  
2014 ◽  
Vol 62 (1) ◽  
pp. 64-77 ◽  
Author(s):  
Beatrice Sicurella ◽  
Mario Caffi ◽  
Manuela Caprioli ◽  
Diego Rubolini ◽  
Nicola Saino ◽  
...  
Keyword(s):  
Brood Size ◽  
Weather Conditions ◽  
Hatching Order ◽  
Survival And Growth

Growth of nestling black kitesMilvus migrans:effects of hatching order, weather and season

1990 ◽  
Vol 222 (2) ◽  
pp. 197-214 ◽  
Author(s):  
F. HlRALDO ◽  
J. P. VEIGA ◽  
M. MÁÑEZ
Keyword(s):  
Hatching Order

scholarly journals Phenology of two interdependent traits in migratory birds in response to climate change

2015 ◽  
Vol 282 (1807) ◽  
pp. 20150288 ◽  
Author(s):  
Nadiah Pardede Kristensen ◽  
Jacob Johansson ◽  
Jörgen Ripa ◽  
Niclas Jonzén
Keyword(s):  
Climate Change ◽  
Resource Availability ◽  
Migratory Birds ◽  
Egg Laying ◽  
The Other ◽  
Sufficient Evidence ◽  
Hatching Date ◽  
Arrival Date ◽  
Body Of Knowledge ◽  
Asynchronous Hatching

In migratory birds, arrival date and hatching date are two key phenological markers that have responded to global warming. A body of knowledge exists relating these traits to evolutionary pressures. In this study, we formalize this knowledge into general mathematical assumptions, and use them in an ecoevolutionary model. In contrast to previous models, this study novelty accounts for both traits—arrival date and hatching date—and the interdependence between them, revealing when one, the other or both will respond to climate. For all models sharing the assumptions, the following phenological responses will occur. First, if the nestling-prey peak is late enough, hatching is synchronous with, and arrival date evolves independently of, prey phenology. Second, when resource availability constrains the length of the pre-laying period, hatching is adaptively asynchronous with prey phenology. Predictions for both traits compare well with empirical observations. In response to advancing prey phenology, arrival date may advance, remain unchanged, or even become delayed; the latter occurring when egg-laying resources are only available relatively late in the season. The model shows that asynchronous hatching and unresponsive arrival date are not sufficient evidence that phenological adaptation is constrained. The work provides a framework for exploring microevolution of interdependent phenological traits.

scholarly journals Growth of Nestling Thick-billed Murres (Uria lomvia) in Relation toParental Experience and Hatching Date

The Auk ◽  
2002 ◽  
Vol 119 (3) ◽  
pp. 827-832 ◽  
Author(s):  
J. Mark Hipfner ◽  
Anthony J. Gaston
Keyword(s):  
Extended Period ◽  
Egg Laying ◽  
Avian Species ◽  
Parental Age ◽  
Hatching Date ◽  
Direct Effects ◽  
Breeding Performance ◽  
Uria Lomvia ◽  
Nestling Growth ◽  
Parental Experience

Abstract In many avian species, reproductive success increases with parental age and experience, and declines seasonally. However, it is difficult to evaluate how parental attributes affect reproduction independently of date effects, because young, inexperienced pairs generally lay later than older, experienced pairs. We examined how parental experience and timing affected nestling growth in the Thick-billed Murre (Uria lomvia), an Arctic seabird that lays a single-egg clutch, by taking advantage of a natural contrast made possible by marked within-group synchrony. That is a common feature at murre colonies, and enabled us to monitor the breeding performance of experienced pairs over an extended period that overlapped with breeding by inexperienced pairs late in the season. Whereas growth of offspring raised by experienced parents was unaffected by their hatching date, offspring raised by inexperienced parents grew more slowly than those raised concurrently by experienced parents. Therefore, parental experience influenced nestling growth rates whereas timing did not, a result that accords with previous studies on this species. Absence of direct effects of timing of egg-laying on breeding success of Thick-billed Murres stands in sharp contrast to many other avian species, and seems surprising for an Arctic-nesting species often assumed to be strictly time-constrained in its breeding.

scholarly journals Interplays between pre- and post-natal environments affect early-life mortality, body mass and telomere dynamics in the wild

2020 ◽  
Vol 224 (1) ◽  
pp. jeb231290
Author(s):  
Tiia Kärkkäinen ◽  
Pauliina Teerikorpi ◽  
Wiebke Schuett ◽  
Antoine Stier ◽  
Toni Laaksonen
Keyword(s):  
Telomere Length ◽  
Early Life ◽  
Maternal Investment ◽  
Interactive Effects ◽  
Hatching Order ◽  
Hatching Synchrony ◽  
Asynchronous Hatching ◽  
In The Wild ◽  
Developmental Conditions ◽  
Telomere Dynamics

ABSTRACTEarly-life conditions are crucial determinants of phenotype and fitness. The effects of pre- and post-natal conditions on fitness prospects have been widely studied but their interactive effects have received less attention. In birds, asynchronous hatching creates challenging developmental conditions for the last-hatched chicks, but differential allocation in last-laid eggs might help to compensate this initial handicap. The relative importance and potential interaction between pre- and post-hatching developmental conditions for different fitness components remains mostly unknown. We manipulated hatching order in wild pied flycatchers (Ficedula hypoleuca), creating three groups: natural asynchrony (last-laid eggs hatching last), reversed asynchrony (last-laid eggs hatching first) and hatching synchrony (all eggs hatching at once). We examined the effects of these manipulations on early-life survival, growth and telomere length, a potential cellular biomarker of fitness prospects. Mortality was mostly affected by hatching order, with last-hatched chicks being more likely to die. Early-life telomere dynamics and growth were influenced by the interplays between laying and hatching order. Last-laid but first-hatched chicks were heavier but had shorter telomeres 5 days after hatching than their siblings, indicating rapid early growth with potential adverse consequences on telomere length. Synchronous chicks did not suffer any apparent cost of hatching synchronously. Impaired phenotypes only occurred when reversing the natural hatching order (i.e. developmental mismatch), suggesting that maternal investment in last-laid eggs might indeed counterbalance the initial handicap of last-hatched chicks. Our experimental study thus highlights that potential interplays between pre- and post-natal environments are likely to shape fitness prospects in the wild.

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