Results 1 to 10 of about 262,426 (361)

Drone Observations of Marine Life and Human–Wildlife Interactions off Sydney, Australia

open access: yesDrones, 2022
Drones have become popular with the general public for viewing and filming marine life. One amateur enthusiast platform, DroneSharkApp, films marine life in the waters off Sydney, Australia year-round and posts their observations on social media.
Vanessa Pirotta   +3 more
doaj   +1 more source

Using accelerometers to develop time-energy budgets of wild fur seals from captive surrogates [PDF]

open access: yesPeerJ, 2018
Background Accurate time-energy budgets summarise an animal’s energy expenditure in a given environment, and are potentially a sensitive indicator of how an animal responds to changing resources. Deriving accurate time-energy budgets requires an estimate
Monique A. Ladds   +6 more
doaj   +2 more sources

Anthropogenic edge effects and aging errors by hunters can affect the sustainability of lion trophy hunting

open access: yesScientific Reports, 2023
Many large predator populations are in decline globally with significant implications for ecosystem integrity and function. Understanding the drivers of their decline is required to adequately mitigate threats.
Andrew J. Loveridge   +4 more
doaj   +1 more source

Geographical, temporal, and individual‐based differences in the trophic ecology of female Cape fur seals

open access: yesEcology and Evolution, 2023
Information on resource use and trophic dynamics of marine predators is important for understanding their role in ecosystem functioning and predicting population‐level responses to environmental change.
Jonathan A. Botha   +8 more
doaj   +1 more source

A critical assessment of marine predator isoscapes within the southern Indian Ocean

open access: yesMovement Ecology, 2020
Background Precise and accurate retrospective geolocation of marine predators via their tissues’ isotopic composition relies on quality reference maps of relevant isotopic gradients (“isoscapes”).
Tegan Carpenter-Kling   +4 more
doaj   +1 more source

Super machine learning: improving accuracy and reducing variance of behaviour classification from accelerometry

open access: yesAnimal Biotelemetry, 2017
Background Semi-automating the analyses of accelerometry data makes it possible to synthesize large data sets. However, when constructing activity budgets from accelerometry data, there are many methods to extract, analyse and report data and results ...
Monique A. Ladds   +5 more
doaj   +1 more source

The effect of relatedness and pack size on territory overlap in African wild dogs

open access: yesMovement Ecology, 2017
Background Spacing patterns mediate competitive interactions between conspecifics, ultimately increasing fitness. The degree of territorial overlap between neighbouring African wild dog (Lycaon pictus) packs varies greatly, yet the role of factors ...
Craig R. Jackson   +3 more
doaj   +1 more source

Intolerant baboons avoid observer proximity, creating biased inter-individual association patterns

open access: yesScientific Reports, 2022
Social network analysis is an increasingly popular tool for behavioural ecologists exploring the social organisation of animal populations. Such analyses require data on inter-individual association patterns, which in wild populations are often collected
Andrew T. L. Allan   +2 more
doaj   +1 more source

Foraging behaviour and habitat-use drives niche segregation in sibling seabird species

open access: yesRoyal Society Open Science, 2020
To mediate competition, similar sympatric species are assumed to use different resources, or the same but geographically separated resources. The two giant petrels (Macronectes spp.) are intriguing in that they are morphologically similar seabirds with ...
Ryan R. Reisinger   +4 more
doaj   +1 more source

Animal-borne acoustic data alone can provide high accuracy classification of activity budgets

open access: yesAnimal Biotelemetry, 2021
Background Studies on animal behaviour often involve the quantification of the occurrence and duration of various activities. When direct observations are challenging (e.g., at night, in a burrow, at sea), animal-borne devices can be used to remotely ...
Andréa Thiebault   +4 more
doaj   +1 more source

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