Social learning and culture in birds: emerging patterns and relevance to conservation

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2025, Номер 380(1925)

Опубликована: Май 1, 2025

There is now abundant evidence for a role of social learning and culture in shaping behaviour range avian species across multiple contexts, from migration routes geese foraging crows, to passerine song. Recent emerging has further linked fitness outcomes some birds, highlighting its potential importance conservation. Here, we first summarize the state knowledge on focusing best-studied contexts migration, foraging, predation We identify extensive gaps taxa but argue that existing suggests that: (i) are taxonomically clustered (ii) reliance one behavioural domain does not predict others. Together, use this build predictive framework aid conservationists species-specific decision-making under imperfect knowledge. Second, review link between conservation birds. understanding which behaviours birds likely learn socially can help refine strategies, improving trajectories threatened populations. Last, present practical steps how consideration be integrated into actions including reintroductions, translocations captive breeding programmes.This article part theme issue 'Animal culture: changing world'.

Язык: Английский

---

New frontiers in bird migration research

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

Опубликована: Окт. 1, 2022

Язык: Английский

---

Gene regulation and speciation in a migratory divide between songbirds

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Янв. 2, 2024

Behavioral variation abounds in nature. This is important for adaptation and speciation, but its molecular basis remains elusive. Here, we use a hybrid zone between two subspecies of songbirds that differ migration - an ecologically taxonomically widespread behavior---to gain insight into this topic. We measure gene expression five brain regions. Differential migratory states was dominated by circadian genes all The remaining patterns were largely brain-region specific. For example, differences the interact with state likely help maintain reproductive isolation system documented only three Contrary to existing work on regulatory mechanisms underlying species-specific traits, lines evidence suggest trans- (vs. cis) changes underlie these no allele-specific hybrids minimal associations genomic differentiation differences. Additional shows levels often distinct (transgressive) from parental forms. contrasts functional enrichment analyses allowed us connect mitonuclear incompatibilities compensatory responses stress could exacerbate selection contribute speciation.

Язык: Английский

---

Variation in movement strategies: Capital versus income migration

Journal of Animal Ecology, Год журнала: 2022, Номер 91(10), С. 1961 - 1974

Опубликована: Авг. 13, 2022

Animal migrations represent the regular movements of trillions individuals. The scale these has inspired human intrigue for millennia and been intensively studied by biologists. This research highlighted diversity migratory strategies seen across within taxa: while some migrants temporarily express phenotypes dedicated to travel, others show little or no phenotypic flexibility in association with migration. However, a vocabulary describing contrasting solutions performance trade-offs inherent highly dynamic lifestyle (and intermediate between two extremes) is currently missing. We propose taxon-independent organising framework based on energetics, distinguishing that forage as they travel (income migrants) those fuel migration using energy acquired before departure (capital migrants). Not only does our capital:income continuum energetics account variable extent migrant populations, but it also aligns theoreticians' treatment clarifies how impacts other phases life cycle. As such, provides unifying common vacabulary comparing divergent taxa.

Язык: Английский

---

Atmospheric pressure predicts probability of departure for migratory songbirds

Movement Ecology, Год журнала: 2023, Номер 11(1)

Опубликована: Апрель 30, 2023

Abstract Background Weather can have both delayed and immediate impacts on animal populations, species evolved behavioral adaptions to respond weather conditions. has long been hypothesized affect the timing intensity of avian migration, radar studies demonstrated strong correlations between broad-scale migration patterns. How affects individual decisions about initiation migratory flights, particularly at beginning remains uncertain. Methods Here, we combine automated radio telemetry data from four songbirds collected five breeding wintering sites in North America with hourly a global model. We use these determine how wind profit, atmospheric pressure, precipitation, cloud cover probability departure sites. Results found that was related changes almost completely regardless species, season, or location. Individuals were more likely depart nights when pressure had rising over past 24 h, which is predictive fair next several days. By contrast, each only informative predictors single species. Conclusions Our results suggest birds actively information inform decision-making regarding grounds. propose choose date hierarchical fashion not influencing until after window already narrowed down by other ultimate proximate factors.

Язык: Английский

---

Effects of wind on the movement, behavior, energetics, and life history of seabirds

Marine Ecology Progress Series, Год журнала: 2023, Номер 723, С. 73 - 117

Опубликована: Авг. 30, 2023

For decades, studies have highlighted links between wind patterns and the behavior, ecology, distribution, energetics life history of seabirds. However, only relatively recently advancements in tracking technologies improvements resolution globally-available data allowed impacts on seabirds to be quantified across multiple spatiotemporal scales. Here, we review synthesize current knowledge effects We first describe global circulation relevant atmospheric processes discuss relationship seabird morphology, flight performance behavior relative wind. then develop a conceptual model linking movement strategies wind, capabilities central-place constraint. Finally, examine how influences populations via efficiency energetics, associated with climate variability severe weather. conclude by highlighting research priorities for advancing our understanding ecology behavior; these include assessing what extent use ocean waves efficient flight, sense anticipate patterns, examining has shaped evolution. Future should also focus modulates habitat accessibility, this could incorporated into theory use. Moreover, approaches that mechanistic climate, demography are needed assess population-level effects, will imperative may impacted climate-driven changes patterns.

Язык: Английский

---

Songbirds initiate migratory flights synchronously relative to civil dusk

Movement Ecology, Год журнала: 2023, Номер 11(1)

Опубликована: Апрель 30, 2023

Each spring and fall billions of songbirds depart on nocturnal migrations across the globe. Theory suggests that should migration shortly after sunset to maximize their potential for nightly flight duration or time departure with emergence celestial cues needed orientation navigation. Although captive studies have found during a narrow window sunset, observational wild birds later more asynchronously relative than predicted.We used coded radio tags automated radio-telemetry estimate nearly 400 individuals from nine songbird species departed breeding wintering grounds North America. We also assessed whether each was most likely beginning long-distance migratory flights at instead first making non-migratory regional flights. then explored variation in by post-departure movement type, species, age, sex, season.We 90% were initiating within 69 min civil dusk, regardless season, sex. By contrast, made movements away destination throughout night. Regardless 98% dusk but otherwise showed no preference relation twilight phase.Although presence may set starting point night, fact earlier synchronously those is consistent hypothesis departing promptly functions distance. studying onset migration, our study provides baseline information about decisions enhance understanding timing migration.

Язык: Английский

---

More than mortality: Consequences of human activity on migrating birds extend beyond direct mortality

Ornithological Applications, Год журнала: 2023, Номер 125(3)

Опубликована: Май 29, 2023

Abstract Birds must contend with an array of anthropogenic threats during their migratory journeys. Many migrants are killed due to encounters artificial light, introduced species, pollutants, and other hazards, while survivors these can suffer longer-lasting negative effects. The nonlethal effects on migrating birds less well understood than direct mortality, yet both potentially contribute population declines. For example, building collisions frequently kill birds, but the numbers that survive impaired ability fly, refuel, or navigate destination time is not understood. Though immediately fatal, such injuries lead delayed mortality and, ultimately, reduced lifetime reproductive success. Furthermore, likely encounter multiple journeys, which interact synergistically further reduce fitness. instance, light pollution attracts disorients migrants, increasing likelihood window strikes, surviving may be more vulnerable predation from predators. While considerable attention has focused lethal threats, here, we review eight types migration, interactions, pathways through they exert fitness costs. In doing so, identify knowledge gaps suggest areas for future research. absence information, propose greatest reduction in cumulative impacts hazards will achieved by addressing threat types, like at night, compound impact additional threats. Direct sources recognized as a key driver declines, full understanding human activity include interacting extend beyond immediate en route influence overall migration success

Язык: Английский

---

Departure, routing and landing decisions of long-distance migratory songbirds in relation to weather

Royal Society Open Science, Год журнала: 2023, Номер 10(2)

Опубликована: Фев. 1, 2023

Migrating birds flexibly adjust their individual migratory decisions, i.e. departing, routing and landing, based on intrinsic (e.g. energy stores) extrinsic landscape features weather) factors modulating the endogenous stimuli. So far, these decisions have mostly been studied separately. Notably, we lack information which landing during active flight are on. Therefore, simultaneously recorded all three in free-flying long-distance songbirds a coastal stopover area via regional-scale radio-telemetry related them to prevailing weather. Birds departed under favourable weather conditions resulting specific nights with increased departure probability. Once departed, could either fly offshore or take route along coast, was predicted by wind support. Radio-tracking revealed that individuals more likely interrupted endurance overcast headwind conditions. Studying departure, concert, highlight importance of as common driver across decisions. By radio-tracking between stopovers, provide evidence avoidance adverse is an important function stopover. Understanding how they affect timing migration survival key link performance fitness.

Язык: Английский

---

Recovery of constitutive immune function after migratory endurance flight in free-living birds

Biology Letters, Год журнала: 2023, Номер 19(2)

Опубликована: Фев. 1, 2023

Strenuous physical activity can negatively affect constitutive innate immune function (CIF), the always present first line of defence against pathogens. CIF is non-specific, and thus vital when encountering novel A lowered likely increases risk infection disease. Migratory birds engage in truly extreme during their endurance flights, however, little known about how they deal with negative impact this has on function. By collecting both between- within-individual data we show, for time, that free-flying migratory recover several parameters stopovers, which are stationary periods between flights. With this, provide an important piece puzzle migrating cope physiological challenges face biannual journeys. Furthermore, our study stresses importance stopovers beyond fuel accumulation.

Язык: Английский

---