Social associations across species during nocturnal bird migration

Current Biology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Cooperative and plural breeding by the precocial Vulturine Guineafowl

Ibis, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Cooperative breeding in birds is thought to be more common altricial species, with few described cases precocial species. However, cooperative may also difficult detect species and could have been overlooked. We investigated whether Vulturine Guineafowl Acryllium vulturinum breed cooperatively and, if so, how care distributed among group members. collected data from 51 uniquely marked individuals (27 males, 24 females), of which 13 females bred at least once over three different seasons. found that broods had close associates comprising both adults subadults exhibited four distinct behaviours: babysitting, chick guarding, covering the chicks calling food. Further, we offspring significantly male‐biased, non‐mother provided most each brood received, differed much help they received carers pay a foraging cost when providing care. In line many other birds, their sons. Our results confirm are plural breeders add growing evidence widespread young than previously thought, thereby counterpoint altriciality–cooperative hypothesis.

Язык: Английский

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New frontiers in bird migration research

Current Biology, Год журнала: 2022, Номер 32(20), С. R1187 - R1199

Опубликована: Окт. 1, 2022

Язык: Английский

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Advances in biologging can identify nuanced energetic costs and gains in predators

Movement Ecology, Год журнала: 2024, Номер 12(1)

Опубликована: Янв. 22, 2024

Abstract Foraging is a key driver of animal movement patterns, with specific challenges for predators which must search mobile prey. These patterns are increasingly impacted by global changes, principally in land use and climate. Understanding the degree flexibility predator foraging social strategies pertinent to wildlife conservation under change, including potential top-down effects on wider ecosystems. Here we propose future research directions better understand predators. In particular, rapid continued advances biologging technology helping record dynamic behavioural responses animals environmental their energetic consequences. Data collection can be optimised calibrating interpretation methods captive settings strategic tagging decisions within between groups. Importantly, many species’ systems being found more flexible than originally described literature, may readily detectable through approaches observation. Integrating physical landscape biotic interactions will explaining predicting movements balance changing world.

Язык: Английский

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Social situations differ in their contribution to population‐level social structure in griffon vultures

Ecology and Evolution, Год журнала: 2023, Номер 13(6)

Опубликована: Июнь 1, 2023

Social relationships among animals emerge from interactions in multiple ecological and social situations. However, we seldom ask how each situation contributes to the global structure of a population, whether different situations contribute information about position individuals within fabric. Griffon vultures (

Язык: Английский

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Modelling individual variability in habitat selection and movement using integrated step‐selection analysis

Methods in Ecology and Evolution, Год журнала: 2024, Номер 15(6), С. 1034 - 1047

Опубликована: Апрель 15, 2024

Abstract Integrated step‐selection analysis (ISSA) is frequently used to study habitat selection using animal movement data. Methods for incorporating random effects in ISSA have been developed, making it possible quantify variability among animals their space‐use patterns. Although model both and parameters, applications date focused on the former despite widely acknowledged important role that plays determining ecological processes from individual ecosystem level. One potential explanation this omission absence of readily available software or examples demonstrating methods estimating parameters with effects. We demonstrated characterizing among‐individual habitat‐selection a simulated data set by fitting two models an acoustic telemetry containing locations 35 red snapper ( Lutjanus campechanus ). Movement kernels were assumed depend either type benthic reef which fish was located (model 1) distance between fish's current location nearest edge 2). In models, we also quantified different classes habitat, allowed The simulation example highlights benefits mixed‐effects specification, namely, can increase precision when individual‐specific borrowing information across like individuals. our applied example, found substantial parameters. Nonetheless, most selected hardbottom nearer habitat. They moved less Turn angles near ± π but more dispersed far away provide code templates functions quantifying implementing doing so, hope encourage ecologists conducting take full advantage ability

Язык: Английский

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How territoriality and sociality influence the habitat selection and movements of a large carnivore

Ecology and Evolution, Год журнала: 2024, Номер 14(4)

Опубликована: Апрель 1, 2024

While territoriality is one of the key mechanisms influencing carnivore space use, most studies quantify resource selection and movement in absence conspecific influence or territorial structure. Our analysis incorporated social information a framework to investigate intra-specific competition on habitat large, carnivore. We fit integrated step functions 3-h GPS data from 12 collared African wild dog packs Okavango Delta estimated coefficients using conditional Poisson likelihood with random effects. Packs selected for their neighbors' 30-day boundary (defined as 95% kernel density estimate)

Язык: Английский

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Kin-based spatial structure in a solitary small mammal as indicated by GPS dataloggers

Animal Behaviour, Год журнала: 2024, Номер 215, С. 45 - 54

Опубликована: Июль 19, 2024

Kin selection is important for understanding the evolution of social behaviour in group-living species. Yet, role kinship solitary species has received little attention. We studied how influences intraspecific variation organization and spatial structure a predominantly species, bush Karoo rat, Otomys unisulcatus, from Succulent semidesert South Africa. predicted that if groups occur, they should consist close kin. further not random, but kin live closer to each other. Over 5 years we performed trapping focal animal observations fitted mini-GPS dataloggers simultaneously on 125 neighbouring female rats investigate their was influenced by kinship. Females were mainly solitary, although small also occurred, all consisting kin, typically females, such as mother her adult daughter or sisters. Although females did have more nonkin than neighbours, lived other nonkin. Daily ranges larger breeding nonbreeding season overlapped between females. conclude be considered when studying it might influence structure.

Язык: Английский

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Counter‐strategies to infanticide: The importance of cubs in determining lion habitat selection and social interactions

Journal of Animal Ecology, Год журнала: 2024, Номер 93(2), С. 159 - 170

Опубликована: Янв. 4, 2024

Abstract Animal social and spatial behaviours are inextricably linked. movements driven by environmental factors interactions. Habitat structure changing patterns of animal space use can also shape Animals adjust their to reduce the risk offspring mortality. In territorial infanticidal species, two strategies possible for males: they stay close protect them against rivals (infant‐defence hypothesis) or patrol territory more intensively prevent rival intrusions (territorial‐defence hypothesis). Here, we tested these hypotheses in African lions ( Panthera leo ) investigating how males females presence offspring. We combined datasets on demography movement lions, collected between 2002 2016 Hwange National Park (Zimbabwe), document cubs (field observations) simultaneous groupmates competitors (GPS tracking). showed a response offspring, with less likely select areas waterholes periphery than without cubs. contrast, were selected when there pride. found responses. Males spent time as habitat openness increased but pride did not influence average likelihood observing females. Furthermore, relocated further after an encounter present prides, suggesting that leads vigorous repulsion competitors. interact male edge pride's home range far from waterholes, particularly assiduous detecting repelling during periods. general, avoid infanticide exhibited supported territorial‐defence hypothesis. Our study contributes answer recent call behavioural ecology at spatial‐social interface.

Язык: Английский

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How behavioural ageing affects infectious disease

Neuroscience & Biobehavioral Reviews, Год журнала: 2023, Номер 155, С. 105426 - 105426

Опубликована: Окт. 13, 2023

Язык: Английский

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