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.
101
datasets available to search
ShareScore release 0.9.0
Dataset results
101 results for “vigilance”
Natural and anthropogenic noise increase vigilance and decrease foraging behaviors in song sparrows
Open the record for dataset details and reuse information.
Data from: Proximity to human settlements can reduce vigilance, but increase alarm call responses in African antelopes
Open the record for dataset details and reuse information.
Data from: Housework or vigilance? Bilbies alter burrowing activity under threat of predation by feral cats
Open the record for dataset details and reuse information.
Anthropogenic noise reduces avian feeding efficiency and increases vigilance along an urban-rural gradient regardless of species' tolerances to urbanisation
<p>Anthropogenic noise can adversely impact urban bird populations by interfering with vocal communication. Less research has addressed if anthropogenic noise masks the adventitious sounds that birds use to aid predator detection, which may lead to increased vigilance and reduced feeding efficiency. We test this hypothesis using a controlled playback experiment along an urban-rural gradient in Sheffield (UK). We also test the related predictions that anthropogenic noise has the greatest impacts on vigilance and feeding efficiency in rural populations, and on species that are more sensitive to urbanisation. We focus on six passerines, in order from most to least urbanised (based on how urbanisation influences population densities): blue tit Cyanistes caeruleus, robin Erithacus rubeculla, great tit Parus major, chaffinch Fringilla coelebs, coal tit Periparus ater and nuthatch Sitta europaea. We used play-back of anthropogenic urban noise and a control treatment at 46 feeding stations located along the urban-rural gradient. We assess impacts on willingness to visit feeders, feeding and vigilance rates. Exposure to anthropogenic noise reduced visit rates to supplementary feeding stations, reduced feeding rates and increased vigilance. Birds at more urban sites exhibit less marked treatment induced reductions in feeding rates, suggesting that urban populations may be partially habituated or adapted to noisy environments. There was no evidence, however, that more urbanised species were less sensitive to the impacts of noise on any response variable. Our results support the adventitious sound masking hypothesis. Urban noise may thus interfere with the ability of birds to detect predators, reducing their willingness to use food rich environments and increase vigilance rates resulting in reduced feeding rates. These adverse impacts may compromise the quality of otherwise suitable foraging habitats in noisy urban areas. They are likely to be widespread as they arise in a range of species including common urban birds.</p>
Data from: Why does noise reduce response to alarm calls? Experimental assessment of masking, distraction and greater vigilance in wild birds
1. Environmental noise from anthropogenic and other sources affects many aspects of animal ecology and behaviour, including acoustic communication. Acoustic masking is often assumed in field studies to be the cause of compromised communication in noise, but other mechanisms could have similar effects. 2. We tested experimentally how background noise disrupted the response to conspecific alarm calls in wild superb fairy-wrens, Malurus cyaneus, assessing the effects of acoustic masking, distraction and changes in vigilance. We first examined the birds' response to alarm-call playbacks accompanied by different amplitudes of background noise that overlapped the calls in acoustic frequency. We then scored and videoed their response to alarm calls in two types of background noise, that did or did not overlap call frequency, but were broadcast at a constant amplitude. 3. Birds were less likely to flee to alarm calls in higher amplitudes of overlapping noise, demonstrating that noise itself compromised communication independently of environmental correlates. Background noise affected the response only if it overlapped in frequency with the alarm calls, implying that the effect was not due to distraction. Further, birds were equally vigilant during background noise of overlapping or non-overlapping frequency, indicating that the lack of response to alarm calls in overlapping noise was not due to enhanced vigilance and awareness that there was no predator. 4. We conclude that alarm-call reception was compromised by masking, a mechanism that is often assumed but rarely tested in an ecological context. Masking compromised reception of high-frequency 'aerial' alarm calls and so could reduce survival in background noise of similar frequency. While anthropogenic noise, which is often of lower frequency, is unlikely to affect communication with these calls, it could affect reception of acoustic cues of danger, or other conspecific or heterospecific alarm calls.
Data from: Decreased vigilance or habituation to humans? Mechanisms on increased boldness in urban animals
Increased boldness is one of the most prevalent behavioral modifications seen in urban animals, and is thought to be a coping response to anthropogenic environmental alterations. Most previous studies have shown enhanced boldness manifested as changes in responses to humans approaching, such as reductions in flight initiation distance (FID). However, this includes two confounding factors related to "boldness", i.e., reduction of vigilance and habituation to humans. Confounding these totally different processes could lead to our misunderstanding of urban adaptation and how to properly manage urban wildlife. Here, we propose a simple framework to separate the two processes using two flight distance measures toward different approaching threats. We considered that the distance at which targeted individuals noticed an approaching object (i.e., alert distance, AD) was related to vigilance, whereas FID represented risk assessment, which is related to habituation. We applied a predictive framework using AD and FID to Eurasian red squirrels' responses to multiple threats of different risk levels (i.e., humans, model predators, and novel objects). AD was shorter in urban individauls compared to rural ones but not different among the approaching objects. FID was shorter in urban individauls and also varied among the objects with the shortest FID toward humans, whereas rural individuals showed similar FID to the different objects. These results suggest that while urban individuals showed reduced vigilance they could still assess different risk levels. Our framework can easily be applied to many animals and could significantly improve our understanding of wild animals' adaptations to urban environments.
Data from: Visual obstruction and vigilance: a natural experiment
Visual obstructions can cause an increase in antipredator vigilance in prey animals by making predator detection more difficult. However, visual obstructions can also skew the perception of group size and inter-individual distances and impair the detection of alarm signals by conspecifics. These changes within the group alone can cause an increase in vigilance. To disentangle the contribution of these various factors to changes in vigilance, I documented vigilance in a gregarious species, the semipalmated sandpiper Calidris pusilla, foraging in a habitat where a naturally-occurring visual barrier partially prevented predator detection without altering the transfer of information about predation risk within the group. I used a matched sampling design to collect vigilance data for birds using adjacent areas with and without the visual barrier. In the visually-obstructed area, sandpipers maintained a higher level of vigilance, occurred farther away from cover and in smaller flocks, and preferentially scanned the area of danger with one eye in particular. All these changes suggest that visual obstruction increased perceived predation risk. I conclude that it is the inability to get a good view of any approaching predator, rather than changes in intra-group communication that caused the increase in vigilance in the visually-obstructed area.
Data from: Intrinsic and extrinsic factors modulating vigilance and foraging in two gregarious foragers
<p>Individuals need to trade-off vigilance and foraging, but species differ in how they manage this. We explored the effects of both intrinsic and extrinsic factors on individual vigilance/foraging patterns in two migratory, gregarious bird species markedly differing in body size and foraging strategies, the Greylag Goose <em>Anser anser</em> and the Common Crane <em>Grus grus</em>, during the non-breeding period.</p> <p>We show that vigilance in individuals of both species decreased with increasing group size and distance from the edge of the group. However, the two species varied how they allocated the freed up time. While cranes allocated the resulting time to foraging, the same did not occur in geese. In addition, we investigated changes in individual position in the group (i.e., peripheral vs. central or vice versa) and how they elicited a prompt behavioral change (i.e., vigilance vs. foraging or other activity). We also explored whether the time elapsed since arrival in non-breeding grounds and proximity to spring migration affected vigilance patterns.</p> <p>We analyzed data using generalized linear mixed models (GLMMs). Analyses were conducted in three steps. First, we fitted species-specific models to explore the factors influencing indices of vigilance and foraging in the two species. Then, we fitted models to investigate the general differences in vigilance/foraging levels between the two species. We calculated the vigilance rate (VR), i.e. the no. of vigilance bouts divided by minutes of observation, the proportion of time in vigilance (PTV) and the proportion of time foraging (PTF), and used them as response variables. Eventually, we focused on repositioning events in the position of individuals within a flock, to evaluate whether reshuffling elicited any change in vigilance and foraging activity immediately after the repositioning. We analyzed presence/absence of vigilance and foraging behaviors after repositioning events (both active and passive due to rearrangement) in the observed individual's position within a flock. Both in the first and in the third steps, we fitted separate models for each species, whereas in the second step we fitted one model for geese and cranes combined. In all steps, we used a multi-model selection approach, through which we ranked all possible candidate models, including the null model.</p> <p>Results allowed to disentangle the role of multifactorial determinants of vigilance and foraging, in turn increasing our understanding of forces driving the evolution of behavior in group-living animals.</p>
Escudo heráldico de la familia Elgueta Vigil
Escudo heráldico de la familia Elgueta Vigil de Quiñones. Procedente del palacio desaparecido de los Elgueta en la calle de la Merced, Murica. Piedra Caliza. Estilo rococó. Segundo tercio del siglo XVIII Proyecto conjunto con el Museo Arqueológico de Murcia. Source: Objaverse 1.0 / Sketchfab
Supplementary material of "VIGIL: A Python tool for automatized probabilistic VolcanIc Gas dIspersion modeLling"
<p>This dataset includes the Supplementary material of the paper: </p> <p>Dioguardi F, Massaro S, Chiodini G, Costa A, Folch A, Macedonio G, Sandri L, Selva J, Tamburello G. VIGIL: A Python tool for automatized probabilistic VolcanIc Gas dIspersion modeLling. Ann. Geophys. [Internet]. 2022Apr.3 [cited 2022Apr.7];65(1). Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/8796</p>
Data from: Captive birds exhibit greater foraging efficiency and vigilance after anti-predator training
<p>Rearing animals in captivity for conservation translocation is a complex undertaking that demands interdisciplinary management tactics. The maladapted behaviors that captive animals can develop create unique problems for wildlife managers seeking to release these animals into the wild. Often, released captive animals show decreased survival due to predation and their inability to display appropriate anti-predator, vigilance, and risk-analysis behaviors. Additionally, released animals may have poor foraging skills, further increasing their vulnerability to predation. Often conservation translocation programs use anti-predator training to ameliorate these maladapted behaviors before release but find mixed results in behavioral responses. The behavioral scope of analyzing the effect of anti-predator trainings is frequently narrow; the effect of this training on an animal's risk-analysis competency, or ability to assess the predation risk of a foraging patch and subsequently adjust its behavior, remains unstudied. Using a captive reared passerine species, the American robin (<em>Turdus migratorius</em>) (46 individuals), we applied an experimental giving up density test (GUD) to analyze the effect of anti-predator training on the robins' vigilance/risk-analysis behaviors, patch choice, and the GUD of food left behind after one foraging session. Robins moved and foraged freely between three foraging patches of differing predation risk before and after a hawk silhouette was presented for one minute. Results indicate that after anti-predator training, robins displayed increased vigilance across most foraging patches and better foraging efficiency (higher vigilance and latency to forage with simultaneous lower GUD) in the safest patch. These results can have positive survival implications post-release, however, more research on this training is needed because anti-predator training has the potential to elicit indiscriminate increased vigilance to the detriment of foraging gains. Further research is required to standardize GUD's application in translocation programs with multigenerational captive-bred animals to fully comprehend its effectiveness in identifying and correcting maladaptive behaviors. GUD tests combined with behavioral analysis should be used by conservation translocation managers to examine the need for anti-predator and foraging trainings, the effects of trainings, and a group's suitability for release.</p>
Data from: Number of neighbors instead of group size significantly affects individual vigilance levels in large animal aggregations
The group size effect states that animals living in groups gain anti-predator benefits through reducing vigilance levels as group size increases. A basic assumption of group size effect is that all individuals are equally important for a focal individual, who may adjust its vigilance levels according to social information acquired from them. However, some studies have indicated that neighbors pose greater influences on an individual's vigilance decisions than other group members, especially in large aggregations. Vigilance has also been found to be directed to both predators (anti-predation vigilance) and conspecifics (social vigilance). Central individuals might rely more on social vigilance than peripheral individuals. To test these hypotheses, we examined the effects of flock size, number of neighbors and position within a flock on vigilance and competition of greater white-fronted goose (Anser albifrons) that form large foraging flocks in winter, controlling the effects of other variables (group identity, winter period, and site). We found that individual vigilance levels were significantly affected by number of neighbors and position within a flock, whereas flock size showed no effect. Individuals devoted a large component of vigilance to nearby flock mates. Central individuals directed a relatively larger proportion of vigilance to monitor neighbors than peripheral ones, indicating that central individuals more relied on social information acquired from neighbors, possibly caused by the more blocked visual field of central individuals. Moreover, some social vigilance may function as conducting or preventing agonistic interactions since competition intensity was positively correlated with number of neighbors. Our study therefore demonstrate that the number of neighbors is more important than group size in determining individual vigilance in large animal groups. Further studies are still needed to unravel which neighbors pose greater influence on individual vigilance, and the factors that influence individuals to acquire information from their neighbors to adjust vigilance behaviors.
Data from: Organisation enhances collective vigilance in the hovering guards of Tetragonisca angustula bees
One benefit of group living is vigilance against predators. Previous studies have investigated the group size effect, where individual vigilance decreases as group size increases without reducing the overall ability of the group to detect predators. However, there has been comparatively little research on whether the positioning of individuals can improve the collective vigilance of the group. We studied the coordination of vigilance and its effect on predator detection in the eusocial bee Tetragonisca angustula. Nests are defended by hovering guards that detect and intercept intruders before they reach the nest entrance, in addition to those that stand upon it. We show that hovering guards are positioned non-randomly, with a strong tendency for equal numbers on both sides of the entrance. This organisation increases the collective vigilance of the guard group, as groups distributed in an even ratio, either side of the entrance, have a greater collective field of view than groups that deviate from an even ratio. Last, we use a bioassay to show that when guards are on both sides of the entrance, their ability to detect intruders before they reach the entrance increases. Overall, our results provide strong evidence that vigilance is coordinated, and that this improves nest defence. Whereas other group-living animals are often selfish in their individual vigilance behaviours, and face competing time constraints such as foraging, the altruistic nature of eusocial insect workers has likely facilitated the evolution of coordinated vigilance, as documented here in T. angustula.
Data from: Disturbance and predation risk influence vigilance synchrony of Black-necked Cranes Grus nigricollis, but not as strongly as expected
<p>Animals monitor surrounding dangers independently or cooperatively (synchronized and coordinated vigilance), with independent and synchronized scanning being prevalent. Coordinated vigilance, including unique sentinel behaviour, is rare in nature, since it is time-consuming and limited in terms of benefits. No evidence showed animals adopt alternative vigilance strategies during antipredation scanning yet. Considering the non-independent nature of both synchronization and coordination, we assessed whether group members could keep alert synchronously or in a coordinated fashion under different circumstance. We studied how human behaviour and species-specific variables impacted individual and collective vigilance of globally threatened black-necked cranes (<i>Grus nigricollis</i>) and explored behaviour-based wildlife management. We tested both predation risk (number of juveniles in group) and human disturbance (level and distance) effects on individual and collective antipredation vigilance of black-necked crane families. Adults spent significantly more time (proportion and duration) on scanning than juveniles, and parents with juveniles behaved more vigilant. Both adults and juveniles increased time allocation and duration on vigilance with observer proximity. Deviation between observed and expected collective vigilance varied with disturbance and predation risk from zero, but not significantly so, indicating that an independent vigilance strategy was adopted by black-necked crane couples. The birds showed synchronized vigilance in low disturbance areas, with fewer juveniles and far from observers; otherwise, they scanned in coordinated fashion. The collective vigilance, from synchronized to coordinated pattern, varied as a function of observer distance that helped us determine a safe distance of 403.75m for the most vulnerable family groups with two juveniles. We argue that vigilance could constitute a prime indicator in behaviour-based species conservation, and we suggesting a safe distance of at least 400m should be considered in future tourist management.Animals monitor surrounding dangers independently or cooperatively (synchronized and coordinated vigilance), with independent and synchronized scanning being prevalent. Coordinated vigilance, including unique sentinel behaviour, is rare in nature, since it is time-consuming and limited in terms of benefits. No evidence showed animals adopt alternative vigilance strategies during antipredation scanning yet. Considering the non-independent nature of both synchronization and coordination, we assessed whether group members could keep alert synchronously or in a coordinated fashion under different circumstance. We studied how human behaviour and species-specific variables impacted individual and collective vigilance of globally threatened black-necked cranes (<i>Grus nigricollis</i>) and explored behaviour-based wildlife management. We tested both predation risk (number of juveniles in group) and human disturbance (level and distance) effects on individual and collective antipredation vigilance of black-necked crane families. Adults spent significantly more time (proportion and duration) on scanning than juveniles, and parents with juveniles behaved more vigilant. Both adults and juveniles increased time allocation and duration on vigilance with observer proximity. Deviation between observed and expected collective vigilance varied with disturbance and predation risk from zero, but not significantly so, indicating that an independent vigilance strategy was adopted by black-necked crane couples. The birds showed synchronized vigilance in low disturbance areas, with fewer juveniles and far from observers; otherwise, they scanned in coordinated fashion. The collective vigilance, from synchronized to coordinated pattern, varied as a function of observer distance that helped us determine a safe distance of 403.75m for the most vulnerable family groups with two juveniles. We argue that vigilance could constitute a prime indicator in behaviour-based species conservation, and we suggesting a safe distance of at least 400m should be considered in future tourist management.</p>
Keep talking, I need to check my phone! Online Vigilance and Phubbing: The Mediating Role of Loneliness and the Moderating Role of Moral Disengagement
<p>In the present study, we investigated the relationship between online vigilance and phubbing, a specific form of technoference that implies ignoring someone while favoring technological, Internet-based devices, such as smartphones.</p>
Pilot Study of Vigil™ + Pembrolizumab for Advanced Melanoma
ClinicalTrials.gov study NCT02574533. IPD Sharing: Not stated. Countries: 1. Publications: 4.
A Trial of Vigil for Participants With Ovarian Cancer
ClinicalTrials.gov study NCT02346747. IPD Sharing: NO. Countries: 1. Publications: 7.
Onco-haematology Vigilance Card
ClinicalTrials.gov study NCT04931329. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Bioequivalence Study of Modafinil From Bravamax 200 mg Scored Tablets (Chemipharm Pharmaceutical Industries, Egypt) Versus Vigil 200 mg Tablets (Teva GmbH, Germany)
ClinicalTrials.gov study NCT05855187. IPD Sharing: NO. Countries: 1. Publications: 3.
Vigilance and Simulated Driving After a Nap
ClinicalTrials.gov study NCT03978026. IPD Sharing: NO. Countries: 1. Publications: 0.
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.