Démographie du Puffin cendré Calonectris diomedea de Selvagem Grande (30°09’N, 15°52’W)

Mougin, Jean‐Louis; Jouanin, C.; Roux, Francis

doi:10.3406/revec.2000.2331

Cited by 14 publications

(4 citation statements)

References 12 publications

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“…The energy cost of this behavior may be even higher since some males reach the end of the pre-laying period in poor body condition due to their constant nest defense. Confirming this, in Cory's shearwaters and Bulwer's petrels (Bulweria bulwerii), males with higher nest tenacity show worse body condition [16][17][18].…”

Section: Introductionmentioning

confidence: 76%

Nest Change and Individual Fitness in a Scopoli’s Shearwater Population: A Capture-Recapture Multistate Analysis

et al. 2023

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Seabirds are compelled to nest on land, away from their feeding areas, which they can only reach by leaving eggs or chicks in the nest, often for long periods of time. For this reason, almost all of them have evolved social monogamy as a reproductive system, cooperation between partners for incubation and chick rearing, and long-lasting pair bonds. Additionally, nesting conditions are essential for successful reproduction, and the nest can be considered a resource if it provides more guarantees in this aspect. As a result, the nest may be a source of contention and intraspecific competition, especially among males. In this work, we analyze long-term data of the Scopoli’s shearwater (Calonectris diomedea) population to address the fitness consequences of nest change regarding survival and reproductive success. We used capture–recapture multistate models and the AICc model selection approach to test three hypotheses: breeding failure triggers nest change; nest change affects breeding success probability; nest change affects survival. Each year, about 5% of the breeders move to a new nest. For males, it was mainly a way to improve their breeding conditions and was observed in their early years as a breeder. Conversely, for females, it was a way to improve their reproductive performance by trying with a new mate after a failure. Males that changed nests improved their breeding success probability. Instead, in females, there was no causal relation between nest change and breeding success, the latter having been more influenced by the intrinsic quality of the female as a breeder. We did not even find a link between nest change and survival. Instead, we demonstrated that reproductive failure could affect the apparent survival of females, probably because it induces breeding dispersal.

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Section: Introductionmentioning

confidence: 76%

Nest Change and Individual Fitness in a Scopoli’s Shearwater Population: A Capture-Recapture Multistate Analysis

et al. 2023

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“…In this species, sexual maturity is only acquired at an average of 9 years (Mougin et al . 2000) and immature birds start visiting the colonies when they are 4 years old (Campioni et al . 2016).…”

Section: Methodsmentioning

confidence: 99%

“…Because most immature birds were ringed as chicks, we could determine their ages from the date of ringing. In this species, sexual maturity is only acquired at an average of 9 years (Mougin et al 2000) and immature birds start visiting the colonies when they are 4 years old (Campioni et al 2016).…”

Section: Study Area and Colony Attendance Data Collectionmentioning

confidence: 99%

Colony attendance and moult pattern of Cory's Shearwaters (Calonectris borealis) differing in breeding status and age

Campioni,

Bolumar Roda,

Alonso

et al. 2023

Ibis

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Migratory birds must fit three costly life‐history events within the annual cycle, reproduction, moult and migration, to minimize their overlap and maximize survival and breeding success. However, some seabirds, such as Cory's Shearwater Calonectris borealis, overlap body moult and breeding, with flight feather renewal occurring in late chick‐rearing. In contrast, the moult patterns of non‐breeding adult (sabbatical) and immature Cory's Shearwaters, which also attend the colony during the breeding season, remain poorly understood. Furthermore, the potential implications of life‐stage and breeding status trade‐offs on moult status and colony attendance in non‐breeders has rarely been investigated. Surveying different areas within one colony between June and September 2013 and 2014, we studied the age and breeding status composition of birds attending the breeding colony and scored moult of their body (breast and upper‐neck), wing and tail feathers. We found that in addition to breeders (n = 165), 57.6% of the birds (n = 389) attending the colony were 4‐ to 10‐year‐old immatures (n = 132) and adult sabbatical shearwaters (n = 92). Sabbaticals and 8‐ to 10‐year‐old immatures (n = 28) were present at the colony during incubation, whereas only three sabbatical birds and no 8‐ to 10‐year‐old immatures were captured in late chick‐rearing. Conversely, 4‐ to 7‐year‐old immatures arrived later in the season but were still present in late chick‐rearing. Sabbatical and 8‐ to 10‐year‐old immatures were moulting body feathers at the same time as adult breeders, whereas, among 4‐ to 7‐year‐old immatures, older birds moulted earlier than younger birds. A larger proportion of sabbatical birds were replacing tail feathers compared with adult breeders. However, there was no evidence that sabbaticals or 8‐ to 10‐year‐old immatures differed in wing moult from adult breeders until August. Overall, our study shows that colony attendance by non‐breeding adults and immatures is widespread in this population. The synchronous moult schedule of flight and body feathers across age groups at different life‐history stages may suggest that this aspect of moult is controlled by environmental conditions.

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“…From these blood samples, all birds were sexed molecularly following Fridolfsson and Ellegren (1999), and based on the detection of a female-specific locus (CHD1-W; diagnostic kit from Durviz, Valencia, Spain). Finally, determining exact age of birds can only be assessed by ringing the individuals as chicks but this is often impractical in long-lived species with delayed recruitment (such as the Cory's shearwater; Mougin et al, 2000). Since all individuals of this study were ringed as adults, we cannot assess their exact age at the time of sampling, and we used therefore "years since first sampling" as a proxy for experience (Exp), assuming that each year that passes, whatever the age at the first year of sampling, an individual has gained experience (e.g., Nichols et al, 1997;Crespin et al, 2006).…”

Section: Sampling Site and Designmentioning

confidence: 99%

Disentangling environmental from individual factors in isotopic ecology: A 17-year longitudinal study in a long-lived seabird exploiting the Canary Current

Ramos

Reyes‐González

Morera‐Pujol

et al. 2020

Ecological Indicators

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Démographie du Puffin cendré Calonectris diomedea de Selvagem Grande (30°09’N, 15°52’W)

Cited by 14 publications

References 12 publications

Nest Change and Individual Fitness in a Scopoli’s Shearwater Population: A Capture-Recapture Multistate Analysis

Nest Change and Individual Fitness in a Scopoli’s Shearwater Population: A Capture-Recapture Multistate Analysis

Colony attendance and moult pattern of Cory's Shearwaters (Calonectris borealis) differing in breeding status and age

Disentangling environmental from individual factors in isotopic ecology: A 17-year longitudinal study in a long-lived seabird exploiting the Canary Current

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