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17 results for “Flight Initiation Distance”
Fig. 3 in Are Abrolhos no-take area sites of naïve fish? An evaluation using flight initiation distance of labrids
Fig. 3. Mean of flight initiation distances for the three labrid species studied in MUAs (Multiple-use areas) and NTAs (No-take areas) in Abrolhos. The upper limits of lines indicate standard deviation; *symbols indicate significant differences according to ANCOVA; **(p <0.001).
Fig. 4 in Are Abrolhos no-take area sites of naïve fish? An evaluation using flight initiation distance of labrids
Fig. 4. Relationship between flight initiation distances (FID), group size and body size (continuous covariates) inside NTAs and MUAs (categorical factor). Black dots represent samples from no-take areas (NTAs); white dots represent samples from multiple-use areas (MUAs). The continuous line represents the best fit for MUAs data and the dotted line that for NTAs data.
Fig. 1 in Are Abrolhos no-take area sites of naïve fish? An evaluation using flight initiation distance of labrids
Fig. 1. Map of study area showing sampled sites (MUAs: Multiple-use areas; NTAs: No-take areas) in the Abrolhos bank.
Fig. 5 in Are Abrolhos no-take area sites of naïve fish? An evaluation using flight initiation distance of labrids
Fig. 5. Average group size (a) and body size (b) estimated for the three labrids studied in both no-takes (NTAs) and multiple-use areas (MUAs) sampled in the Abrolhos Bank. The upper limits of lines indicate standard error.
Civil war is associated with longer escape distances among Sri Lankan birds - flight-initiation distances of Sri Lankan birds
<p>War influences wildlife in a variety of ways but may influence their escape responses to approaching threats, including humans, because of its effect on human populations and behaviour, and landscape change. We collected 1,400 Flight-Initiation Distances (FIDs) from 157 bird species in the dry zone of Sri Lanka, where civil war raged for 26 years, ending in 2009. Accounting for factors known to influence FIDs (phylogeny, starting distance of approaches, body mass, prevailing human density, group size and location), we found birds have longer FIDs in the part of the dry zone which experienced civil war. Larger birds, often preferred by human hunters, showed greater increases in FID in the war zone, consistent with the idea that war was associated with greater hunting pressure, that larger birds experienced longer-lasting trauma, or had more plastic escape behaviour, than smaller species. While the mechanisms linking the war and avian escape responses remain ambiguous, wars evidently leave legacies which extend to behavioural responses in birds.</p>
Data from: Flight initiation distance is repeatable and geographically flexible in greylag geese (Anser anser)
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Civil war is associated with longer escape distances among Sri Lankan birds - flight-initiation distances of Sri Lankan birds
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Fig. 2. Scuba diver using a in Are Abrolhos no-take area sites of naïve fish? An evaluation using flight initiation distance of labrids
Fig. 2. Scuba diver using a wooden handle to simulate the spearfisher behavior.
Flight initiation distance differs among eumelanin-based color morphs in feral pigeons
<p><strong><span>The table lists the variable and factors used in the article:</span></strong></p> <p><span>“Flight initiation distance differs among eumelanin-based color morphs in feral pigeons”</span></p> <p><span>- “Individual” is an individual number to differentiate individiual feral pigeons</span></p> <p><span>- “Location” is the name of the location in Paris where the FID of the individual was measured</span></p> <p><span>- “Date” is the date when the FID of the individual was measured</span></p> <p><span>- “ColorMorph” is the eumelanin-based color morph of the individual</span></p> <p><span>- “Latitude” and “Longitude” are the spatial coordinates of the site in Paris where the FID of the individual was measured</span></p> <p><span>- "FID" is the Flight Initiation Distance measured</span></p> <p><span>- columns from “Urbanisation300” to “Urbanisation1000” are the Urbanization rates determined within increasing radius from 300 to 1000m around each individual</span></p> <p><span>- columns from “PedestrianTraffic300PropNiv1” to “PedestrianTraffic900PropNiv1” are the proportion of streets of level 1 intensity, measured within increasing radius from 300 to 900m</span></p> <p><span>- columns from “PedestrianTraffic300PropNiv2” to “PedestrianTraffic900PropNiv2” are the proportion of streets of level 2 intensity, measured within increasing radius from 300 to 900m<span><br></span></span></p> <p><span>- columns from “PedestrianTraffic300PropNiv3” to “PedestrianTraffic900PropNiv2” are the proportion of streets of level 3 intensity, measured within increasing radius from 300 to 900m</span></p>
Flight initiation distances of birds
<p>Habitat destruction and fragmentation increasingly brings humans into close proximity with wildlife, particularly in urban contexts. Animals respond to humans using nuanced anti-predator responses, especially escape, with responses influenced by behavioural and life history traits, the nature of the risk, and aspects of the surrounding environment. Although many studies examine associations between broad-scale habitat characteristics (i.e., habitat type) and escape response, few investigate the influence of fine-scale aspects of the local habitat within which escape occurs. We test the 'habitat connectivity hypothesis' which suggests that, given the higher cost of escape within less connected habitats (due to the lack of protective cover), woodland birds should delay escape (tolerate more risk) than when in more connected habitat. We analyse flight-initiation distances (FIDs) of five species of woodland birds in urban Melbourne, south-eastern Australia. A negative effect of habitat connectivity (the proportion of the escape route with shrubs/trees/perchable infrastructure) on distance fled was evident for all study species, suggesting a higher cost of escape associated with lower connectivity. FID did not vary with connectivity at the location at which escape was initiated (four species), apart from a positive effect of habitat connectivity on FID for Noisy Miner Manorina melanocephala. We provide some support for two predictions of the 'habitat connectivity hypothesis' in at least some taxa, and conclude it warrants further investigation across a broader range of taxa inhabiting contrasting landscapes. Increasing habitat connectivity within urban landscapes may reduce escape stress experienced by urban birds.</p>
Flight initiation distances of birds
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Fearfulness of geese and swans on cropland in winter: A multi-species Flight Initiation Distance approach
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Data from: Consistency in the flight and visual orientation distances of habituated chacma baboons after an observed leopard predation: Do flight initiation distance methods always measure perceived predation risk?
<p>Flight initiation distance (FID) procedures are used to assess the risk perception animals have for threats (e.g., natural predators, hunters) but it is unclear whether these assessments remain meaningful if animals have habituated to certain human stimuli (e.g., researchers, tourists). Our previous work showed that habituated baboons displayed individually distinct and consistent responses to human approaches, a tolerance trait, but it is unknown if the trait is resilient to life-threatening scenarios. If it were consistent, it would imply FIDs might measure specific human threat perception only and not generalise to other threats such as predators when animals have experienced habituation processes. We used FID procedures to compare baseline responses to the visual orientation distance, FID, and individual tolerance estimates assessed after a leopard predation on an adult male baboon (group member). All variables were consistent despite the predation event, suggesting tolerance to observers was largely unaffected by the predation and FID procedures are unlikely to be generalisable to other threats when habituation has occurred. FID approaches could be an important tool for assessing how humans influence animal behaviour across a range of contexts, but careful planning is required to understand the type of stimuli presented.</p>
Nocturnal Flight-initiation Distances
<p>This repository presents videos of approaches to mammals and birds by night to determine their flight-initiation distance (FID). No white or infra-red light is used. Some are “first person”, videoed by the approacher for the purpose of demonstrating an approach, some are videoed by the observer who remains at the starting location. Where observers “overshoot” the flight, these are subsequently corrected by the observer, but this last correction is not necessarily in all of the presented videos because some stop after flight of the focal animal. Some videos show minor corrections to direction of the approacher by radio. Finally, videos are shot zoomed out to capture both approacher and focal animal within the same frame, typically the observer would zoom in tighter on the focal animal during an approach. </p>
Data from: Consistency in the flight and visual orientation distances of habituated chacma baboons after an observed leopard predation: Do flight initiation distance methods always measure perceived predation risk?
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Urban junco flight initiation distances correlate with approach velocities of anthropogenic sounds
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Figure 1 from: Osorio-Beristain M, Rodríguez A, Martínez-Garza C, Alcalá RE (2018) Relating flight initiation distance in birds to tropical dry forest restoration. Zoologia 35: 1-7. https://doi.org/10.3897/zoologia.35.e12642
Figure 1 Mean (± SE) flight initiation distance scored in the three avian species evaluated.
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International Brain Laboratory public data
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OpenNeuro
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