Studying the Reproductive Skipping Behavior in Long-Lived Birds by Adding Nest-Inspection to Individual-Based Data.

Sanz‐Aguilar, Ana; Tavecchia, Giacomo; Genovart, Meritxell; Igual, José Mariano; Oró, Daniel; Rouan, Lauriane; Pradel, Roger

doi:10.1890/09-2339

Cited by 18 publications

(40 citation statements)

References 38 publications

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“…Our results provide strong evidence for the influence of oceanographic variables on seabird skipping propensity, while climatic indi ces are less significantly related. Other Mediterranean seabird species such as Scopoli's shearwater Calonectris diomedea and Yelkouan shearwater Puffinus yelkouan, are most probably facing similar reproductive constraints due to environmental variation (Hamer 2010, Sanz-Aguilar et al 2011. Confinement to the Mediterranean basin may present a problem for these seabird species, as the Mediterranean allows only limited north−south shifts of habitat and in phenology, in contrast with other seas , Barbraud & Weimerskirch 2006), thus requiring a high level of species resilience to environmental variation.…”

Section: Discussionmentioning

confidence: 99%

“…Intermittent breeding was found to be associated with a range of factors, including the availability of food resources, in mammals (Pilastro et al 2003(Pilastro et al ) and birds (N ewton 1995(Pilastro et al , 1998. In some seabird species, in cluding gulls (Calladine & Harris 1997, Mills et al 2008, kittiwakes (Cam et al 1998), penguins (Jiguet & Jouventin 1999) and petrels (Barbraud & Weimerskirch 2005), intermittent breeding is described in association with environmental constraints or, in the case of shearwaters (Sanz-Aguilar et al 2011), as a characteristic of individuals with a lower intrinsic quality. Furthermore, reproduction skipping was described as a consequence of incomplete primary moult in albatross (Langston & Rohwer 1996).…”

Section: The Intermittent Breeding Strategymentioning

confidence: 99%

“…This strategy may enhance adaptation to a changing environment, as a form of bet-hedging (Crean & Marshall 2009, Ripa et al 2010. Alternatively it may have a link to breeder intrinsic quality as in other Mediterranean seabird species (Sanz-Aguilar et al 2011).…”

Section: Forecasting the Impacts Of Ocean Warmingmentioning

confidence: 99%

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Forecasting ocean warming impacts on seabird demography: a case study on the European storm petrel

Soldatini

Albores‐Barajas

Massa

et al. 2016

Mar. Ecol. Prog. Ser.

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Bottom-up climatic forcing has been shown to be influential for a variety of marine taxa, but evidence on seabird populations is scarce. Seasonal variation in environmental conditions can have an indirect effect on subsequent reproduction, which, given the longevity and single-brooding of seabirds, may affect population dynamics. Our study focuses on linking the effect of oceanographic conditions (from 1991 to 2013) to the fecundity and consequently population growth rate of the Mediterranean subspecies of the European storm petrel Hydrobates pelagicus melitensis. In this study, we examined 23 yr of > 5400 capture-mark−recaptures (CMR) and modelled the probability of skipping reproduction as a function of oceanographic variables using CMR models. We demonstrate that a decrease in sea surface temperature in the pre-breeding period negatively influences skipping propensity, and therefore hypothesize that this behaviour would have significant influence on population abundance over time. For this reason, we analysed population growth as a function of skipping probability as affected by oceanographic conditions. We used stochastic demographic models to forecast the fate of the population, and evaluated contrasted environmental condition scenarios. As a result, we found that a decrease in frequency of cold winter events would probably reduce skipping propensity, with a positive effect on the population as a whole.

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Section: Discussionmentioning

confidence: 99%

Section: The Intermittent Breeding Strategymentioning

confidence: 99%

See 1 more Smart Citation

Forecasting ocean warming impacts on seabird demography: a case study on the European storm petrel

Soldatini

Albores‐Barajas

Massa

et al. 2016

Mar. Ecol. Prog. Ser.

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“…seen -not seen) through a series of conditional probabilities (Supplementary material Appendix 1). We took advantage of the multi-event approach to split the dispersal process in fidelity and settlement probabilities and to incorporate unobservable states in our modelling, such as an unknown location (hereafter 'ghost site') to model dispersal out of our system and obtain more reliable estimates of model parameters (Jenouvrier et al 2008, Sanz-Aguilar et al 2011. Models included the following eight states: four breeding states (one for each breeding site), the state 'alive elsewhere' (i.e.…”

Section: Study Populationsmentioning

confidence: 99%

When to stay, when to disperse and where to go: survival and dispersal patterns in a spatially structured seabird population

et al. 2013

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Dispersal is a key process for the population dynamics of spatially structured populations (at local and metapopulation levels), so the understanding of the mechanisms underlying the movement of individuals in space and time is important for evolutionary and ecological studies. Here we analyzed, for the first time, a long‐term (1992–2009) multi‐site capture– recapture database collected at four local populations of a long‐lived seabird, the Audouin’s gull Larus audouinii, covering 90% of its total world population. Those local populations show different ecological and demographic features that allow us to assess the influence of several key factors involved in breeding dispersal patterns at large spatio‐temporal scales. A recently developed analytical tool in mark–recapture modelling, the multi‐event approach, allowed us to obtain separate departure and settlement probabilities and test different biological hypotheses for each step of the dispersal process. Our results revealed that site fidelity was the most common strategy among breeders, and dispersal was only high from the site with the lowest population size and habitat quality. However, departures from the two largest local populations increased over the study period in response to severe ecological perturbations. Dispersers chose different settlement patches depending on their site of origin, with settlement choices determined by the population size of the destination colony rather than by the local reproductive performance, foraging area (a proxy of food availability) or distance to the destination site. Our results indicate that a breeding site is not abandoned by breeders unless a series of cumulative perturbations occur; once dispersing, settlement is directed towards densely populated sites, with dispersers using population size to rapidly assess the quality of the breeding patch.

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“…Since all study burrows are marked and monitored over the years, and the goal has been to capture the two members of the pair of each burrow during the breeding season, field effort has been kept rather constant. More details of fieldwork procedures can be found in Genovart et al (2013a), Oro et al (2004) and Sanz-Aguilar et al (2011). The two shearwaters are mainly threatened by mortality at sea from fishing gears, a factor that does not affect Storm petrels, which are affected by alien terrestrial predators such as rats and carnivores (e.g.…”

Section: A S E S T U D Ymentioning

confidence: 99%

Hierarchical modelling of population growth rate from individual capture–recapture data

et al. 2014

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Summary1. Estimating rates of population change is essential to achieving theoretical and applied goals in population ecology, and the Pradel (1996, Biometrics, 52: 703.) temporal symmetry method permits direct estimation and modelling of the growth rate of open populations, using capture-recapture data from marked animals. 2. We present a Bayesian formulation of the Pradel approach that permits a hierarchical modelling of the biological and sampling processes. Two parametrizations for the temporal symmetry likelihood are presented and implemented into a general purpose software in BUGS language. 3. We first consider a set of simulated scenarios to evaluate performance of a Bayesian variable selection approach to test the temporal linear trend on survival and seniority probability, population growth rate and detectability. We then provide an example application on individual detection information of three species of burrowing nesting seabirds, whose populations cannot be directly counted. For each species, we assess the strength of evidence for temporal random variation and the temporal linear trend on survival probability, population growth rate and detectability. 4. The Bayesian formulation provides more flexibility, by easily allowing the extension of the original fixed time effects structure to random time effects, an option that is still impractical in a frequentist framework.

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Studying the Reproductive Skipping Behavior in Long-Lived Birds by Adding Nest-Inspection to Individual-Based Data.

Cited by 18 publications

References 38 publications

Forecasting ocean warming impacts on seabird demography: a case study on the European storm petrel

Forecasting ocean warming impacts on seabird demography: a case study on the European storm petrel

When to stay, when to disperse and where to go: survival and dispersal patterns in a spatially structured seabird population

Hierarchical modelling of population growth rate from individual capture–recapture data

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