Movement predictability of individual barn owls facilitates estimation of home range size and survival

Movement Ecology, Journal Year: 2023, Volume and Issue: 11(1)

Published: Feb. 7, 2023

Abstract Background There is growing attention to individuality in movement, its causes and consequences. Similarly other well-established personality traits (e.g., boldness or sociability), conspecifics also differ repeatedly their spatial behaviors, forming behavioral types (“spatial-BTs”). These spatial-BTs are typically described as the difference mean-level among individuals, intra-individual variation (IIV, i.e., predictability) only rarely considered. Furthermore, factors determining predictability ecological consequences for broader space-use patterns largely unknown, part because was mostly tested captivity with repeated assays). Here we test if (i) individuals movement specifically predictability. We then investigate (ii) of this home-range size survival estimates, (iii) that affect individual Methods tracked 92 barn owls ( Tyto alba ) an ATLAS system monitored survival. From these high-resolution (every few seconds) extensive trajectories (115.2 ± 112.1 nights; X̅ SD) calculated indices max-displacement size, respectively). used double-hierarchical generalized linear mix-models assess spatial-BTs, nightly max-displacement, consistency across time. Finally, explored levels were associated survival, well seasonal, geographical, demographic affecting it age, sex, owls’ density). Results Our dataset (with 74 after filtering) revealed clear individualism movement. Individuals differed consistently both mean max-displacement) IIV around (i.e., predictability). More predictable had smaller home-ranges lower rates, on top beyond expected effects spatial-BT (max-displacement), age environments. Juveniles less than adults, but sexes did not Conclusion results demonstrate may act overlooked axis potential implications relevant processes at population level fitness. Considering how mean-effect can facilitate understanding intraspecific diversity, predicting responses changing conditions management.

Language: Английский

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Fear generalization and behavioral responses to multiple dangers

Trends in Ecology & Evolution, Journal Year: 2022, Volume and Issue: 38(4), P. 369 - 380

Published: Nov. 22, 2022

Language: Английский

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Frugivory and Seed Dispersal by Carnivorans

Frontiers in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 10

Published: March 28, 2022

Seed dispersal is critical to the ecological performance of sexually reproducing plant species and communities that they form. The Mammalian order Carnivora provide valuable effective seed services but tend be overlooked in much literature. Here we review literature on role Carnivorans dispersal, with a search Scopus reference database. Overall, found are prolific dispersers. Carnivorans’ diverse plastic diets allow them consume large volumes over hundred families fruit disperse quantities seeds across landscapes. Gut passage by these taxa generally has neutral effect viability. While overall quality complex, likely increase long-distance may aid ability some persist face climate change.

Language: Английский

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Methods for Monitoring Large Terrestrial Animals in the Wild

Forests, Journal Year: 2020, Volume and Issue: 11(8), P. 808 - 808

Published: July 26, 2020

Reliable information about wildlife is absolutely important for making informed management decisions. The issues with the effectiveness of control and monitoring both large small wild animals are relevant to assess protect world’s biodiversity. Monitoring becomes part methods in ecology observation, assessment, forecasting human environment. World practice reveals potential joint application proven traditional modern technologies using specialized equipment organize environmental processes. terrestrial require an individual approach due their low density larger habitat. Elk/moose such animals. This work aims evaluate animals, suitable controlling number elk/moose framework nature conservation activities. Using different models allows determining population size without affecting significant financial costs. Although, accuracy each model determined by its postulates implementation initial conditions that need statistical data. Depending on geographical, climatic, economic territory, it possible use tools (e.g., cameras, GPS sensors, unmanned aerial vehicles), a flexible variation which will allow reaching golden mean between desires capabilities researchers.

Language: Английский

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Intrinsic traits, social context, and local environment shape home range size and fidelity of sleepy lizards

Ecological Monographs, Journal Year: 2022, Volume and Issue: 92(3)

Published: March 24, 2022

Abstract Home ranges (HRs), the regions within which animals interact with their environment, constitute a fundamental aspect of ecology. HR sizes and locations commonly reflect costs benefits associated diverse social, biotic, abiotic factors. Less is known, however, about how these factors affect intraspecific variation in size or fidelity (the individual's tendency to maintain same location over time) whether features emerge from consistent differences among individuals sites they occupy. To address this knowledge gap, we used an extensive GPS‐tracking data set long‐lived lizard, sleepy lizard ( Tiliqua rugosa ), included repeated observations multiple across years. We tested three categories predictors—(1) characteristics (sex, aggressiveness, parasitic tick counts), (2) environmental (precipitation, food, refuge quality), (3) social conditions (conspecific overlap number neighbors)—affected fidelity. found that differed consistently annual HRs (with repeatability 0.58 0.33, respectively), all predictors affected both For example, were smaller areas more males had larger than females. In addition, aggressive lizards tended have HRs. Conspecific interacted (social network degree) interactive effect on where whose overlapped neighbors HRs, was particularly strong for neighbors. declined time (HR drifted year year), but rate drift. The fact despite drifting suggests individual traits (e.g., habitat choice criteria differ individuals), rather simple heterogeneity sites. Overall, findings demonstrate (1) strong, long‐term, within‐individual consistency between‐individual space use combined effects traits, conditions, animal implications ecological processes.

Language: Английский

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Personality and predictability in farmed calves using movement and space-use behaviours quantified by ultra-wideband sensors

Royal Society Open Science, Journal Year: 2022, Volume and Issue: 9(6)

Published: June 1, 2022

Individuals within a population often show consistent between individual differences in their average behavioural expression (personality), and variability of behaviour around the mean (predictability). Where correlations different personality traits and/or predictability exist, these represent or syndromes. In wild populations, syndromes have consequences for individuals' survival reproduction affect structure functioning groups populations. The farm animals are less well explored, partly due to challenges quantifying many individuals across time context setting. Here, we use ultra-wideband location sensors provide precise measures movement space 60 calves over 40-48 days. We first livestock study demonstrate variation with repeatability values up 0.80 CVp 0.49. Our results predictability, indicating existence 'exploratory' 'active' farmed calves. consider such cattle welfare how data may be used inform management decisions animals.

Language: Английский

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Keystone individuals – linking predator traits to community ecology

Trends in Ecology & Evolution, Journal Year: 2024, Volume and Issue: 39(11), P. 983 - 994

Published: July 26, 2024

Individual behavioral plasticity enables animals to adjust different scenarios. Yet, personality traits limit this flexibility, leading consistent interindividual differences in behavior. These individual have the potential govern community interactions, although testing is difficult complex natural systems. For large predators who often exert strong effects on ecosystem functioning, diversity may be especially important and lead individualized roles. We present a framework for quantifying of wild predators, revealing extent which certain behaviors are governed by these latent traits. The outcomes will reveal how innate characteristics wildlife can scale up affect interactions.

Language: Английский

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Polar bears in western Hudson Bay show limited on-ice site fidelity

Polar Biology, Journal Year: 2025, Volume and Issue: 48(2)

Published: Feb. 20, 2025

Language: Английский

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On the interface between cultural transmission, phenotypic diversity, demography and the conservation of migratory ungulates

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 380(1925)

Published: May 1, 2025

Recent evidence indicates that green-wave surfing behaviour in ungulates and the migrations stem from this are socially learned, culturally transmitted across generations become more efficient via cumulative cultural evolution. But given a lack of corroborative evidence, whether ungulate migration is phenomenon remains hypothesis deserving further testing. In opinion piece, we summarize role memory social learning play underlies migration, when combined with natural history ungulates, argue most likely mechanism for maintenance animal culture. We our argument by providing synopsis processes promote diversification migratory link these to their emergent ecological patterns, which common nature but have not historically been considered as potential phenomena. The notion diverse portfolios may buffer populations environmental change emerges synthesis requires empirical Finally, contend that, because stems largely transmission opposed genetic programme, diversity observed strategies represents 'culturally significant units' same conservation effort afforded evolutionarily units.This article part theme issue 'Animal culture: changing world'.

Language: Английский

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Hunters select for behavioral traits in a large carnivore

Scientific Reports, Journal Year: 2019, Volume and Issue: 9(1)

Published: Aug. 26, 2019

Abstract Human harvest can induce selection on life history and morphological traits, leading to ecological evolutionary responses. Our understanding of harvest-induced behavioral traits is, however, very limited. Here, we assessed whether hunters harvest, consciously or not, individuals with specific traits. We used long-term, detailed survival data a heavily harvested brown bear ( Ursus arctos ) population in Sweden. found that male bears were less active during legal hunting hours had lower movement rates. Also, female habitats closer roads. provide an empirical example individual behavior modulate vulnerability could exert selective pressure wildlife behaviors. This study increases our the complex interactions between method, human behavior, animal are at play provides better insight into full effects wild populations.

Language: Английский

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