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10 results for “provisioning rate”
Data from: Food supplementing peregrine falcon (Falco peregrinus tundrius) nests increases reproductive success without changes in parental mean provisioning rate
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Variance partitioning of nest provisioning rates in blue tits: individual repeatability, heritability and partner interactions
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Data from: Extra-pair paternity is not driven by inbreeding avoidance and does not affect provisioning rates in a cooperatively breeding bird, the noisy miner (Manorina melanocephala)
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Brood parasitism, provisioning rates and breeding phenology of male and female magpie hosts
<p class="CuerpoA"><span>Parental care is a costly behaviour that raises the prospects of offspring survival. In species with biparental care these costs are shared by both parents, although there may be a conflict regarding the relative investment of each sex. Avian brood parasites leave all the costs of rearing offspring to their hosts. The magnitude of these costs and their consequences on the relative role of both sexes in parental care and future reproduction remain mostly unknown. Here, we investigate whether provisioning rate of nestlings by magpie hosts (<i>Pica pica</i>) differs between broods parasitized by the great spotted cuckoo (<i>Clamator glandarius</i>) and non-parasitized broods, and whether the relative contribution of each sex to provisioning is affected by parasitism. Furthermore, we explore the effect of parasitism on magpie's future reproduction. We found that provisioning rate was similar in parasitized and non-parasitized broods, and that the relative contribution of males and females was also similar, irrespectively of the parasitism status. However, rearing parasitic offspring seems to have a negative long-term effect on magpie's breeding phenology in the following breeding season. Our results suggest that, although brood parasitism by great spotted cuckoos does not seem to influence the relative contribution of both sexes to parental care, it may entail long-term extra costs in terms of breeding delay for magpies.</span></p>
Data for: Negative effects of agricultural intensification on the food provisioning rate of a declining aerial insectivore
<p>The historical rise of intensive agricultural practices is hypothesized to be related to declines of grassland and aerial insectivorous birds. Drivers of declines may also influence the overall abundance and spatial distribution of insects within agricultural landscapes. Subsequently, the food provisioning rate of birds breeding within more agro-intensive landscapes may be impacted. Lower provisioning rates in agro-intensive landscapes may lead to reduced growth rate, body condition or fledging success of nestlings but also to diminished body condition of food provisioning adults. Results from a previous study supported this hypothesis as the fledging success and proxies of nestling body condition were lowest for an aerial insectivore breeding in more agro intensive landscapes. Of the multiple hypotheses put forward to explain these correlations, one mechanism may act through variation in food provisioning rates. In this study, we expounded on this hypothesis using data derived from the aforementioned study system and assessed if provisioning rates to nestlings and food provisioning behavior of adults varied across a gradient of agricultural intensification in a declining aerial insectivore, the Tree Swallow (<em>Tachycineta bicolor)</em>. We found that the hourly provisioning rate was lower in agro-intensive landscapes, and yet travel distances were longest within less agro-intensive landscapes. Our results highlight that, in order to maximize long term average gain rates, Tree Swallows breeding within agro-intensive landscapes must forage with greater intensity, perhaps at a cost to themselves, or else costs will transfer to growing broods. Our work provides further evidence that agricultural intensification on the breeding grounds can contribute to the declines of aerial insectivores in part through a trophic pathway.</p>
Data from: Diet and provisioning rate differ predictably between dispersing and philopatric pied flycatchers
Dispersal is an essential process for most animal populations to persist in changing environments. Dispersers are often a non-random sample of the population, and differ consistently from non-dispersers in a suite of correlated phenotypic traits ('dispersal syndromes'). This phenotypic integration is thought to be adaptive. Here, we investigate whether dispersal tendency of individual pied flycatchers (Ficedula hypoleuca) covaries with a set of repeatable behaviors that should confer advantages for surviving and reproducing in novel environments. We specifically focus on the link between dispersal, foraging behavior and aggressiveness because selection on foraging tactics or social behaviors likely differs between individuals staying in familiar or dispersing to novel environments. Using repeated measures of nestling provisioning data of pied flycatcher parents in one year, we tested if immigrants and philopatric individuals (local recruits and experienced breeders) differed in diet specialization, provisioning rates, levels of aggression and reproductive success. Results show that individuals differed consistently in their foraging behavior, with immigrants having a more generalist diet and higher feeding rates than philopatric birds, but not in aggressiveness. More generalist males fledged more young. Our findings suggest that prior local knowledge facilitates diet specialization, and that more generalist diets could be adaptive for immigrants breeding in unknown environments. Aggressiveness was not part of the dispersal syndrome in our population, perhaps because high aggression levels are too costly to maintain in high density populations. Understanding the proximate causes and ultimate consequences of variation in dispersal syndromes requires now experimental manipulations of individual dispersal decisions.
Brood parasitism, provisioning rates and breeding phenology of male and female magpie hosts
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Data from: Diet and provisioning rate differ predictably between dispersing and philopatric pied flycatchers
Open the record for dataset details and reuse information.
Data for: Negative effects of agricultural intensification on the food provisioning rate of a declining aerial insectivore
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Advanced Provision of Emergency Contraception: Utilizing Technology to Increase Prescription Fill Rates
ClinicalTrials.gov study NCT01401816. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.