Effects of individual life-history traits and weather on reproductive output of Black-headed Gulls<i>Larus ridibundus</i>breeding in the Wadden Sea, 1991–97

Thyen, Stefan; Becker, Peter

doi:10.1080/00063650609461426

Cited by 13 publications

(14 citation statements)

References 29 publications

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“…The negative effect of low air temperature alone does not provide a mechanistic link to CFM because chicks can withstand a wide range of temperatures (Chappell et al 1989), but we will discuss this negative effect further in the next section in relation to the statistical interaction with other predictor variables. Although precipitation was not a key predictor variable in our models, it can cause the plumage of chicks to become damp or wet and is generally a major factor causing egg and chick mortality and slow growth due to hypothermia (Konarzewski & Taylor 1989, Thyen & Becker 2006. For example, Boersma & Rebstock (2014) found more chicks died when rainfall was high and air temperature was low.…”

Section: Local Weather Predictors Of Cfmmentioning

confidence: 99%

Large-scale climate and local weather drive interannual variability in Adélie penguin chick fledging mass

Cimino¹,

Fraser²,

Patterson‐Fraser³

et al. 2014

Mar. Ecol. Prog. Ser.

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The fledging mass of penguin chicks can be an indicator of food availability and environmental conditions at a penguin colony. For the period 1989 to 2011, we analyzed predictor variables of environmental and food resource factors acting on multiple spatial scales near Palmer Station, Antarctica, that may influence the interannual variability in Adélie penguin chick fledging mass (CFM). To understand the influence of parental Adélie penguin diet on CFM, we modeled the energy density and krill demographics of penguin diet samples. We found a weak but significant positive relationship between the proportion of immature krill in adult penguin diets and CFM, which may indicate that krill recruitment and prey availability to adults influences CFM. However, the impact of large-scale climate and local weather outweighed the impact of parental diet characteristics on CFM. CFM was negatively associated with a positive Antarctic Oscillation (or Southern Annular Mode) and increased westerly winds and was positively associated with increased air temperature. The mechanistic relationship between climate, local weather, and CFM could include direct and indirect impacts, such as increased thermo-regulative costs for unattended chicks, decreased chick feeding frequency, and smaller meal mass for chicks driven by the geophysical transport of krill by climate and wind events.

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Section: Local Weather Predictors Of Cfmmentioning

confidence: 99%

Large-scale climate and local weather drive interannual variability in Adélie penguin chick fledging mass

Cimino¹,

Fraser²,

Patterson‐Fraser³

et al. 2014

Mar. Ecol. Prog. Ser.

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“…2). This value lies in the high part of the range of reported values for BHG (0.3 to 2 fledglings per pair ;Patterson 1965;Lebreton and Landry 1979;Viksne 1980;Thyen and Becker 2006;van Dijk et al 2009). This result is probably due to our not accounting for reproductive failures (pairs that do not produce any fledgling on a given year).…”

Section: Discussionmentioning

confidence: 61%

“…Yet in the ''Introduction'', we relied on the assumption that, at the egg-laying stage, females use mostly resources secured before settling in the colonies. This assumption that BHG are capital breeders (Drent and Daan 1980) is, however, contradicted by Thyen and Becker (2006) who found that, in another BHG population, clutch size changes with weather conditions during the breeding season.…”

Section: Discussionmentioning

confidence: 82%

“…If we make the assumption that food resource during the breeding season does not impact on clutch size and hatching success, we can predict that DFS but not IFS should be impacted by colony size effects on food resource (BHG as capital breeders; Drent and Daan 1980;Hamer et al 1993 in another Larid species; but see Thyen and Becker 2006 and further details in the ''Discussion''). Overall from the two preceding points, we thus predict that IFS should decrease with colony size and that DFS should increase with colony size.…”

Section: Introductionmentioning

confidence: 99%

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Costs and benefits of colony size vary during the breeding cycle in Black-headed Gulls Chroicocephalus ridibundus

2010

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We studied the effects of colony size on individual reproductive success in a multi-site population of Black-headed Gulls Chroicocephalus ridibundus where colony size ranged from 10 to 5,000 pairs. By focusing on family size, the number of chicks attended by individually marked parents, and accounting for between-individual variation, we detected a negative colony-size effect during the very first days of life of the chicks that was compensated by a subsequent increase in the proportion of surviving chicks with colony size. We suggest that this result originates in the interplay between overcrowding costs acting on hatching success, and benefits of colonial breeding, most probably more efficient food-searching (foraging enhancement), acting on chick survival. However, the frequency of complete colony failure increased with decreasing colony size. Taking this hazard risk into account yielded a corrected estimate of the effect of colony size on breeding success, and indicated that the largest colonies were the most productive. This pattern is congruent with the previous finding that larger colonies are more attractive to dispersing breeders.

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“…Burger and Lesser 1980;Wilds and Czaplak 1994;Vidal et al 1998;Garthe et al 1999;Thyen and Becker 2006;Lenda et al 2010). In Europe, some species that originally occurred mostly on the coast expanded to inland areas where they had never occurred before Zielińska et al 2007; Lenda et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans

et al. 2012

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We monitored population size from 1996 to 2003 and studied behavioural interactions (in 2001) between the native Black-headed Gull Chroicocephalus ridibundus and an expansive, opportunistic predator, the Caspian Gull Larus cachinnans, at water reservoirs in Poland. The expansive species caused a population decline in the native species and affected its choice of nest sites. The Black-headed Gulls perceived the risk of predation on the part of the larger Caspian Gulls. When both species occurred in close proximity, the native gull breeding pairs built nests where the vegetation was higher and its cover greater than at the sites chosen by pairs breeding far away from the expansive species. The native gulls in proximity to the expansive species spent more time guarding their nests. However, this was not compensatory, as egg losses were higher and breeding success much lower in pairs breeding near the Caspian Gulls than in those breeding far from the latter. Such a low breeding performance in the Blackheaded Gulls was probably caused either by predation on the part of Caspian Gulls or by aggressive interactions among Black-headed Gulls. In fact, the rate of intraspecific aggression in native gulls was higher in pairs breeding in proximity to the expansive species than in those breeding far away from it. These intraspecific fights, caused by the presence of the expansive species were, at least partially, responsible for egg and chick losses. We did not find the presence of native gulls to have any effect on the behaviour and breeding performance of the expansive gull. These results indicate that the expansive predatory Caspian Gull negatively affects local population size and alters the behaviour of the native Black-headed Gull, and may, both directly and indirectly, affect its reproductive performance. Keywords

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Effects of individual life-history traits and weather on reproductive output of Black-headed GullsLarus ridibundusbreeding in the Wadden Sea, 1991–97

Cited by 13 publications

References 29 publications

Large-scale climate and local weather drive interannual variability in Adélie penguin chick fledging mass

Large-scale climate and local weather drive interannual variability in Adélie penguin chick fledging mass

Costs and benefits of colony size vary during the breeding cycle in Black-headed Gulls Chroicocephalus ridibundus

Numerical and behavioural response of Black-headed Gull Chroicocephalus ridibundus on population growth of the expansive Caspian Gull Larus cachinnans

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