Population biology of the wandering albatross (<i>Diomedea exulans</i>) in the Crozet and Kerguelen archipelagos, southern Indian Ocean, approached through genetic and demographic methods

Bried, Joël; Nicolaus, Marion; Jarne, Philippe; Dubois, Marie‐Pierre; Jouventin, Pierre

doi:10.1111/j.1469-7998.2006.00242.x

Cited by 11 publications

(15 citation statements)

References 60 publications

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“…Although the duration of our demographic survey prevents us from getting sufficient data on local recruitment, philopatry combined with preferential re‐mating with neighbours might explain the possible existence of some inbred pairs on Vila islet. At this locality, however, the overall trend was random mating with respect to genetic similarity, as in the wandering albatross (Bried et al 2007).…”

Section: Discussionmentioning

confidence: 86%

Does competition for nests affect genetic monogamy in Cory's shearwaterCalonectris diomedea?

Bried¹,

Dubois²,

Jarne³

et al. 2010

Journal of Avian Biology

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Most bird species are socially monogamous. However, extra‐pair copulations (EPCs), resulting in extra‐pair paternity (EPP), commonly occur. EPCs should allow females to adjust social mate choice and allow males that fail to obtain a nest a chance to avoid missing a breeding season, especially when poor nest supply constrains social mate choice. Procellariiformes (albatrosses and petrels) are socially monogamous seabirds which seldom divorce, even when nest availability constrains social mate choice. In Cory's shearwater Calonectris diomedea, a burrow‐nesting petrel, two studies conducted in the Mediterranean, where competition for nests is weak, detected no EPP. EPP remains to be investigated at localities where competition for nests is much stronger, such as Vila islet, Azores archipelago, Atlantic Ocean. We conducted a genetic (microsatellites) study over two successive years on Vila, involving the breeding pairs of the same 65 nests each year and their single chick. EPPs occurred each year, the overall rate being 11.6%. Coupling genetic analyses to a 7‐year demographic survey provided additional data on pair bonds and competition for nests. Overall, cuckoldry was unrelated to divorce, nest density and inbreeding avoidance, but was more frequent when the social male was small. Nest changes were more costly for males than for females, and some apparently unpaired males attempted to dislodge social males during within‐pair copulations. These results are compatible with the existence of a link between poor nest availability and EPP and confirm that even species considered strongly monogamous can adopt flexible mating strategies.

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Section: Discussionmentioning

confidence: 86%

Does competition for nests affect genetic monogamy in Cory's shearwaterCalonectris diomedea?

Bried¹,

Dubois²,

Jarne³

et al. 2010

Journal of Avian Biology

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“…Although they can cover several thousands of kilometres during foraging trips and range over oceanic basins, they show very low natal dispersal from their colony of birth, and even higher fidelity to their breeding colony after they have started breeding. However, short‐scale natal dispersal between colonies of the same island does occur regularly (Bried et al. , 2007), as well as occasionally long‐distance dispersal between islands as far as 900 km apart (Inchausti & Weimerskirch, 2002).…”

Section: Introductionmentioning

confidence: 99%

Heritability of short‐scale natal dispersal in a large‐scale foraging bird, the wandering albatross

Charmantier

Buoro

Giménez

et al. 2011

J of Evolutionary Biology

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Natal dispersal is a key life history trait for the evolution and adaptation of wild populations. Although its evolution has repeatedly been related to the social and environmental context faced by individuals, parent–offspring regressions have also highlighted a possible heritable component. In this study, we explore heritability of natal dispersal, at the scale of the sub‐Antarctic Possession Island, for a large‐scale foraging seabird, the Wandering albatross Diomedea exulans, exploiting a pedigree spanning over four decades and a maximum of four generations. The comparison of three different methods shows that heritability on the liability scale can vary drastically depending on the type of model (heritability from 6% to 86%), with a notable underestimation by restricted maximum likelihood animal models (6%) compared to Bayesian animal models (36%). In all cases, however, our results point to significant additive genetic variance in the individual propensity to disperse, after controlling for substantial effects of sex and natal colony. These results reveal promising evolutionary potential for short‐scale natal dispersal, which could play a critical role for the long‐term persistence of this species on the long run.

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“…However, despite an inherently high dispersal potential, and an almost complete lack of dispersal barriers, mark–recapture studies of Laysan albatross have shown them to be philopatric to their natal nest site (Fisher, 1976). This observation has led to predictions of restricted gene flow that have been confirmed in other species of albatross (Abbott & Double, 2003 a ; Bried et al , 2007; Walsh & Edwards, 2005).…”

Section: Introductionmentioning

confidence: 99%

Inferring colonization history and dispersal patterns of a long‐lived seabird by combining genetic and empirical data

Young

2010

Journal of Zoology

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Identifying biological trends and threats to organisms that make long distance migrations are often the limiting factors in their conservation. Indeed, Laysan albatross Phoebastria immutabilis are highly vagile seabirds, foraging throughout the North Pacific Ocean. Despite mark-recapture data indicating natal philopatry, Laysan albatross recently re-colonized several anthropogenically extirpated breeding locations. At the same time, a breeding population in the north-western Hawaiian Islands was lost to erosion and it was hypothesized that the colonization events were due to displacement rather than dispersal. Nuclear and mitochondrial markers were used in a range wide survey to test whether natal philopatry corresponded to population structure in Laysan albatross, and to determine whether recent colonization events were a result of displacement from vanishing breeding habitat. Five microsatellite loci found little population structure (F ST = 0.01, P= 0.001), and sequences from the mitochondrial control region revealed low population structure (p ST = 0.05, Po0.001). The results were consistent with male-mediated dispersal and strong, but not absolute, philopatry by females. Mixed stock analyses and banding records from the newly colonized sites indicated contributions from multiple source populations, which contradicted the displacement hypothesis of a single source population and instead supported species-wide dispersal from all source colonies. High genetic diversity (p= 0.045, h = 0.989), rapid colonization, and great dispersal potential bode well for the conservation of Laysan albatross. However, it may be necessary to protect highisland nesting sites, preserve genetic diversity and maintain breeding populations in the face of projected sea level rises and persistent bycatch.

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Population biology of the wandering albatross (Diomedea exulans) in the Crozet and Kerguelen archipelagos, southern Indian Ocean, approached through genetic and demographic methods

Cited by 11 publications

References 60 publications

Does competition for nests affect genetic monogamy in Cory's shearwaterCalonectris diomedea?

Does competition for nests affect genetic monogamy in Cory's shearwaterCalonectris diomedea?

Heritability of short‐scale natal dispersal in a large‐scale foraging bird, the wandering albatross

Inferring colonization history and dispersal patterns of a long‐lived seabird by combining genetic and empirical data

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