Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
123
datasets available to search
ShareScore release 0.7.1
Dataset results
123 results for “Breeding success”
Relative breeding timing and reproductive success of a resident montane bird species
<p>The phenological match-mismatch hypothesis predicts that animals that better synchronize critical life history events with the peak availability of their primary food source should have higher fitness. If phenological match-mismatch determines breeding success, most individuals in a population may be expected to breed simultaneously within a given year because selection has favored mechanisms that allow for the tracking of optimal food abundance. Therefore, individuals that breed too early or too late relative to the bulk of the population ("peak" of breeding) should experience decreased fitness. Using 11 years of data, we investigated the effect of relative breeding timing on breeding success in resident mountain chickadees (Poecile gambeli) across two elevations in the Sierra Nevada mountains, USA. Chickadees that bred during the peak of nesting did not have the highest breeding success; instead, birds that bred earliest performed best at high elevation, while at low elevation early and peak nests performed similarly. Breeding success decreased linearly with relative timing at both high and low elevations, and the relationship between breeding success and timing differed among years. Our results suggest that phenological match-mismatch may not be the main driver of within-year variation in breeding success in animals residing in montane environments.</p>
Effects of pair migratory behaviour on breeding phenology and success in a partially migratory shorebird population
<p>In migratory systems, variation in individual phenology can arise through differences in individual migratory behaviours, and this may be particularly apparent in partial migrant systems, where migrant and resident individuals are present within the same population. Links between breeding phenology and migratory behaviour or success are generally investigated at the individual level. However, for breeding phenology in particular, the migratory behaviours of each member of the pair may need to be considered simultaneously, as breeding phenology will likely be constrained by timing of the pair member that arrives last, and carry-over effects on breeding success may vary depending on whether pair members share the same migratory behaviour or not. We used tracking of marked individuals and monitoring of breeding success from a partially migrant population of Eurasian oystercatchers (Haematopus ostralegus) breeding in Iceland to test whether (a) breeding phenology varied with pair migratory behaviour; (b) within-pair consistency in timing of laying differed among pair migratory behaviours; and (c) reproductive performance varied with pair migratory behaviour, timing of laying and year. We found that annual variation in timing of laying differed among pair migratory behaviours, with resident pairs being more consistent than migrant and mixed pairs, and migrant/mixed pairs breeding earlier than residents in most years but later in one (unusually cold) year. Pairs that laid early were more likely to replace their clutch after nest loss, had higher productivity and higher fledging success, independent of pair migratory behaviour. Our study suggests that the links between individual migratory behaviour and reproductive success can vary over time and, to a much lesser extent, with mate migratory behaviour and can be mediated by differences in laying dates. Understanding these cascading effects of pair phenology on breeding success is likely to be key to predicting the impact of changing environmental conditions on migratory species.</p>
Fig. 1 in Pantala flavescens successfully breeding for the second time in Malta (Maltese Archipelago) (Odonata: Libellulidae)
Fig. 1 – The four reservoirs where male Pantala flavescens were seen holding territory and from where the exuviae were collected.
Figure 3 in Effect of reed burning and precipitation on the breeding success of Great Reed Warbler, Acrocephalus arundinaceus, on a mining pond
Figure 3. Correlation between amount of precipitation and breeding success at Bager Pond, 2008–2011. Data points are Early and Late groups in 4 years.
Figure 1 in Breeding behaviour and mating success of Phyllomedusa rohdei (Anura, Hylidae) in south-eastern Brazil
Figure 1. Female of Phyllomedusa rohdei folding a leaf with her arms and legs, before entering amplexus. At this moment, the leaf is not immediately glued (drawing from a photo).
Data for: The association between personalities, alternative breeding strategies, and reproductive success in dunnocks
<p>Although consistent between-individual differences in behaviour (i.e. animal personality) are ubiquitous in natural populations, relatively few studies have examined how personalities influence the formation of social relationships. Yet, behavioural characteristics of both sexes might be key when it comes to pair-bond formation, and the cooperation with partners to successfully rear offspring. We here use a wild population of dunnocks (<i>Prunella modularis</i>) to first investigate whether individuals mate non-randomly (i.e. assortative mating) with regard to four behavioural traits – flight-initiation distance (FID), provisioning, activity, and vigilance – that differ in repeatability and have previously been associated with mating patterns and fitness in other species. Second, we test whether an individual's FID is associated with variability in the dunnocks' mating system (i.e. monogamous pairs vs. polygamous groups). Finally, we determine whether FID and provisioning of males and females associate with their reproductive success. We found no statistical support for assortative mating in FID between males and females. Interestingly, in polygamous groups, co-breeding males differed in their FIDs with dominant alpha-males having significantly shorter FIDs compared to subordinate beta-males. Moreover, there was evidence for assortative mating in provisioning for alpha-males and females in polygamous groups. We also found that male provisioning influenced reproductive success of both sexes, while female provisioning rates only positively correlated with her own but not their partner(s) reproductive output. Our results suggest that personality differences may have important implications for social relationships, the emergence of different mating patterns and ultimately reproductive success within populations.</p>
Yelkouan shearwater (Puffinus yelkouan) Maltese Islands' colony differences in feather corticosterone, bulk stable isotopes, mercury concentration, adult breeding success and foraging strategies
<p>All data and scripts uploaded and described here are related to the manuscript being submitted under the title: "<span lang="EN-GB">Feather corticosterone and stable isotopes explain fledging and adult breeding success in a burrow-nesting seabird, the Yelkouan shearwater <em>Puffinus yelkouan</em>", accepted for publication in Marine Biology (doi: 10.1007/s00227-025-04748-8).</span></p> <h2><strong><u>Adult Breeding success </u></strong></h2> <p>In the script “YESH_Malta_BreedingSuccess_DSR_Rmark.R” apparent breeding success and daily nest survival rates are estimated for yelkouan shearwater nests in Maltese colonies based on the nest log data found in “BreedingSuccessSummaryData.zip”.</p> <h2><strong><u>Nestling and fledgling feather growth, corticosterone, stable isotopes and mercury</u></strong></h2> <p>The R script “YESH_FeatherGrowth_CORT_SI_Hg_chicks_Malta_Script.R” was written to load, combine and analyse all the data related to measurements of nestling growth, feather corticosterone, bulk stable isotopes and mercury analysis. The folder “YESH_FeatherGrowth_CORT_SI_Hg_chicks_Malta_Data.zip” contains the files with these data as named and loaded in the script. The folder also contains the original outputs from the corticosterone measurements by plate, including standard curves, provided in the subfolder: “CORT_Output_by_plate”. Original outputs as sent from the LIENs laboratory for stable isotopes and mercury can be found in the subfolder “SI_Hg_Outputs”.</p> <h2><strong><u>Adult shearwater tracking data analysis</u></strong></h2> <p>The R script written to analyse gps-logger data is named: “YESH_RM_MJ_ChickRearPeriod_ForagingStrategies.R”</p> <p>Adult yelkouan shearwater gps-logger tracking data during the chick-rearing period from the two colonies compared, Majjistral (MJ) and Rdum tal-Madonna (RM): “YESH_Malta_RM_MJ_ChickRearPeriod.csv”.</p> <p>Apart from the consolidated form the tracking data from the chick-rearing period can be found on BirdLife International Seabird Tracking Database:</p> <p>2012, 2013 & 2014: <a href="https://data.seabirdtracking.org/dataset/836">https://data.seabirdtracking.org/dataset/836</a></p> <p><a href="https://data.seabirdtracking.org/dataset/837">https://data.seabirdtracking.org/dataset/837</a></p> <p><a href="https://data.seabirdtracking.org/dataset/952">https://data.seabirdtracking.org/dataset/952</a></p> <p>2019: <a href="https://data.seabirdtracking.org/dataset/1935">https://data.seabirdtracking.org/dataset/1935</a></p> <p>2021: https://data.seabirdtracking.org/dataset/2223</p> <p>https://data.seabirdtracking.org/dataset/2224</p> <p>2022: <a href="https://data.seabirdtracking.org/dataset/1855">https://data.seabirdtracking.org/dataset/1855</a> </p> <p>“TRACKID_2012_2022_DIAGNOSTICSV3.csv” describes the completeness of tracks based on visual assessment and is loaded during the running of the script.</p> <p>Output shapefiles produced by running the script are provided in the folder: “YESH_RM_MJ_ShapefileOutputs_KDE.zip”.</p> <h2>Acknowledgements and Funding</h2> <p>We are grateful to the German Ornithologists’ Society through which all laboratory analysis was funded with funds from the Ursula Honig estate. Tracking was funded under EU-LIFE+ Malta Seabird Project (LIFE10NAT/MT/090), EU-LIFE Artina (LIFE17 NAT/HR/000594) and EU-LIFE PanPuffinus! (LIFE19 NAT/MT/000982), co-financed respectively by the Maltese Ministry for Sustainable Development, the Environment and Climate Change; Ministry of Education and Employment and Ministry for Agriculture, Fisheries and Animal Rights. All handling and sampling of shearwaters were carried out under permits from the Environment & Resources Authority (ERA) and the Wild Birds Regulation Unit (WBRU). We thank all staff and volunteers of BirdLife Malta having taken part in fieldwork, and all members of the public who contact us for grounded shearwaters. We are grateful to Gaël Guillou of the platform “Analyses isotopiques” for running the stable isotope analyses and to Maud Brault-Favrou of the platform “Analyses élémentaires” for running Hg analyses, both at the LIENSs laboratory. Thanks are due to the CPER (Contrat de Projet Etat-Région) and the FEDER (Fonds Européen de Développement Régional) for funding the AMA and the IRMS of LIENSs. Contributor PB is an honorary member of the IUF (Institut Universitaire de France). </p>
Data from: Earlier springs increase goose breeding propensity and nesting success at Arctic but not at temperature latitudes
<p class="MsoNormal"><span>1. Intermittent breeding is an important tactic in long-lived species that trade off survival and reproduction to maximize lifetime reproductive success. When breeding conditions are unfavourable, individuals are expected to skip reproduction to ensure their own survival. <br>2. Breeding propensity (i.e. the probability for a mature female to breed in a given year) is an essential parameter in determining reproductive output and population dynamics, but is not often studied in birds because it is difficult to obtain unbiased estimates. Breeding conditions are especially variable at high latitudes, potentially resulting in a large effect on breeding propensity of Arctic-breeding migratory birds, such as geese. <br>3. With a novel approach, we used GPS-tracking data to determine nest locations, breeding propensity and nesting success of barnacle geese, and studied how these varied with breeding latitude and timing of arrival on the breeding grounds relative to local onset of spring. <br>4. Onset of spring at the breeding grounds was a better predictor of breeding propensity and nesting success than relative timing of arrival. At Arctic latitudes (> 66°), breeding propensity decreased from 0.89 (95% CI: 0.65-0.97) in early springs to 0.22 (95% CI: 0.06-0.55) in late springs, while at temperate latitudes it varied between 0.75 (95% CI: 0.38-0.93) and 0.89 (95% CI:<span> </span>0.41-0.99) regardless of spring phenology. Nesting success followed a similar pattern, and was lower in later springs at Arctic latitudes, but not at temperate latitudes.<span> </span>In early springs, a larger proportion of geese started breeding despite arriving late relative to the onset of spring, possibly because the early spring enabled them to use local resources to fuel egg laying and incubation. <br>5. While earlier springs due to climate warming are considered to have mostly negative repercussions on reproductive success through phenological mismatches, our results suggest that these effects may partly be offset by higher breeding propensity and nesting success.</span></p>
Effects of pair migratory behaviour on breeding phenology and success in a partially migratory shorebird population
Open the record for dataset details and reuse information.
Relative breeding timing and reproductive success of a resident montane bird species
Open the record for dataset details and reuse information.
Data from: Agonistic song rate positively correlates with male breeding success and avian malaria infection in Acrocephalus paludicola (Aquatic Warbler), a promiscuous songbird with female-only parental care
Open the record for dataset details and reuse information.
Data from: Earlier springs increase goose breeding propensity and nesting success at Arctic but not at temperature latitudes
Open the record for dataset details and reuse information.
Data from: Sociality of a threatened ‘solitary’ marsupial before and after population reinforcement: associations and links to breeding success
Open the record for dataset details and reuse information.
Data for: The association between personalities, alternative breeding strategies, and reproductive success in dunnocks
Open the record for dataset details and reuse information.
Data from: Cascading effects of climate variability on the breeding success of an edge population of an apex predator
<p>1. Large-scale environmental forces can influence biodiversity at different levels of biological organization. Climate, in particular, is often associated to species distributions and diversity gradients. However, its mechanistic link to population dynamics is still poorly understood.</p> <p>2. Here, we unraveled the full mechanistic path by which a climatic driver, the Atlantic trade winds, determines the viability of a bird population.</p> <p>3. We monitored the breeding population of Eleonora's falcons in the Canary Islands for over a decade (2007-2017) and integrated different methods and data to reconstruct how the availability of their prey (migratory birds) is regulated by trade winds. We tracked foraging movements of breeding adults using GPS, monitored departure of migratory birds using weather radar, and simulated their migration trajectories using an individual-based, spatially explicit model.</p> <p>4. We demonstrate that regional easterly winds regulate the flux of migratory birds that is available to hunting falcons, determining food availability for their chicks and consequent breeding success. By reconstructing how migratory birds are pushed towards the Canary Islands by trade winds, we explain most of the variation (up to 86%) in annual productivity for over a decade.</p> <p>5. This study unequivocally illustrates how a climatic driver can influence local-scale demographic processes, while providing novel evidence of wind as a major determinant of population fitness in a top predator. 06-Jul-2020</p>
Code and data for: Familiarity breeds success: pairs that meet earlier experience increased breeding performance in a wild bird population
<p>This is a Data package that contains three separate datasets and the analysis code for a manuscript 'Familiarity breeds success: pairs that meet earlier experience increased breeding performance in a wild bird population '. The first Dataset (pairs_data_2007_10) and the second dataset (pairs_data_2011_14) contain the data used to analyse the influence of meeting time of a pair of Great tits (i.e. month in the first dataset, week in the second dataset, when a pair was first detected in a flock together) on different components of breeding success of a pair. The third dataset (meeting_and_divorce) was used to analyse whether meeting time of a pair (in winter prior to the breeding season t) influence the probability of a pair to stay together or separate (divorce) to the following breeding season (t+1).</p>
Apparent breeding success drives long-term population dynamics of a migratory swan
<p>The ability of a species to adapt to environmental change is ultimately reflected in its vital rates – i.e., survival and reproductive success of individuals. Together, vital rates determine trends in numbers, commonly monitored using counts of species abundance. Rapid changes in abundance can give rise to concern, leading to calls for research into the biological mechanisms underlying variations in demography. For the NW European population of Bewick's swan (<i>Cygnus columbianus bewickii</i>), there have been major changes in the population trends recorded during nearly five decades of monitoring (1970-2016). The total number of birds increased to a maximum of c. 30,000 in 1995 and subsequently decreased to about 18,000 individuals in 2010. Such large fluctuation in population numbers is rare in long-lived species and understanding the drivers of this population change is crucial for species management and conservation. Using the integrated population model (IPM) framework, we analysed three demographic datasets in combination: population counts, capture-mark-resightings (CMR) and the proportion of juveniles in winter over a period of ~50 years. We found higher apparent breeding success in the years when the population had a positive growth rate compared to years with a negative growth rate. Moreover, no consistent trend in adult and yearling survival, and an increasing trend in juvenile survival was found. A transient life-table response experiment showed that apparent breeding success and adult survival contributed most to the variation in population trend. We explored possible explanatory variables for the different demographic rates and found a significant association between juvenile survival both with the water level in lakes during autumn migration, which affects food accessibility for the swans, and with summer temperatures. Such associations are important for understanding the dynamics of species with fluctuating population sizes, and thus for informing management and conservation decisions.</p>
Data from: It's not all about temperature: breeding success also affects nest design
<p><span><span><span><span><span><span><span><span><span><span>There are numerous observational studies on intra-specific variation in avian nest building and a single experimental manipulation. The general consensus is that birds build nests in response to environmental conditions, but it is not clear whether such flexibility in nest building is reproductively advantageous. To test the relationship between building flexibility and reproductive success, we allowed captive zebra finches to build their first nest, using string, and to breed in temperature-controlled rooms held at 14<sup>o</sup>C or 30<sup>o</sup>C. Once the offspring had fledged, we returned half the pairs to breed at the same temperature while half the pairs were switched to the alternative temperature. We provided all pairs with string and left them to build and breed a second time. For their first nest, pairs that built at 14°C used more string than did pairs that built at 30°C, and pairs that bred successfully built a nest with more string than did unsuccessful pairs. When pairs built their second nest, however, temperature no longer explained the number of pieces of string they used; rather, irrespective of the ambient temperature, pairs that had successfully produced young from their first nest used the same amount of string for their second nest while those that had failed to reproduce with their first nest used more string. These latter pairs were then more likely to reproduce successfully. Ambient temperature, therefore, did affect the nest the pairs built, but only in the absence of reproductive experience. </span></span></span></span></span></span></span></span></span></span></p>
Data from: Carry-over effects of seasonal migration on reproductive success through breeding site retention in a partially migratory bird
<p>Understanding the maintenance and dynamics of phenotypic polymorphisms requires unpicking key ecological mechanisms shaping the fitness costs and benefits of expressing alternative phenotypes, generating selection. Seasonal migration versus year-round residence expressed in partially migratory populations represents one common polymorphism that can experience strong selection through differential reproductive success. Yet, key hypothesised pathways that could generate such selection remain to be empirically tested.</p> <p>One hypothesis is that migratory tactics affect subsequent reproductive success through carry-over effects on breeding site retention and resulting breeding dispersal. By remaining in breeding areas all year round, residents could retain their preferred breeding site between years, and consequently have higher reproductive success. Conversely, migrants that escape harsh non-breeding season conditions could return in better condition, with high resource holding potential, and outcompete residents to retain their site. Such effects could further depend on migration timing and vary between years. Yet, such pathways have not been quantified, precluding empirical parameterisation of partial migration theory. </p> <p>We used four years of breeding and non-breeding season data from partially migratory European shags (<em>Gulosus aristotelis</em>) to test whether the three most frequent migratory tactics in this population (full resident, early migrant departing soon after breeding, and late migrant departing in late autumn) differed in their breeding site retention; whether site retention predicted reproductive success; and hence whether effects of migratory tactic on reproductive success were explicable through site retention.</p> <p>Overall, residents were much more likely to retain their breeding site between years than both early and late migrants, and site retention was associated with increased reproductive success. Yet, these effects varied somewhat among years: late migrants were always least likely to retain their site but had variable relative reproductive success. Path analyses revealed that effects of migratory tactic on reproductive success were only partly attributable to breeding site retention.</p> <p>These results indicate that multiple mechanisms underlie reproductive selection on migratory tactics, potentially contributing to maintaining behavioural polymorphisms. Yet, the clear associations between migratory tactics and local breeding dispersal reveal that these movements can be strongly interlinked across seasons, shaping overall spatio-seasonal dynamics in partially migratory systems.</p>
Fig. 3 in Pantala flavescens successfully breeding for the second time in Malta (Maltese Archipelago) (Odonata: Libellulidae)
Fig. 3 – Two teneral specimens of Pantala flavescens.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.