Animal Behaviour最新文献_第3页

Saltatory search in virtual prey does not affect predation risk from fish predators

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-04-01 DOI: 10.1016/j.anbehav.2024.12.005

Daisy Johnston-Barrett , Graeme D. Ruxton , Christos C. Ioannou

{"title":"Saltatory search in virtual prey does not affect predation risk from fish predators","authors":"Daisy Johnston-Barrett , Graeme D. Ruxton , Christos C. Ioannou","doi":"10.1016/j.anbehav.2024.12.005","DOIUrl":"10.1016/j.anbehav.2024.12.005","url":null,"abstract":"<div><div>Movement is integral to biological interactions at every scale and, within animal behaviour, links cognition, locomotion and ecological interactions. Saltatory movement is a stop-and-go pattern of motion found across a wide variety of taxa, but little is known about how it affects the vulnerability of moving prey to their predators. Intermittent periods of pause in saltatory movement decrease activity, which has previously been linked to an adaptive reduction in conspicuousness in prey. Accordingly, we predicted that predators would attack constantly moving prey more than prey with saltatory movement. Using a system of three-spined stickleback, <em>Gasterosteus aculeatus</em>, predators attacking simulated virtual prey, we investigated how saltatory movement of prey affects their risk of predation. Computer-generated dots (simulated prey) were programmed to vary in the percentage of time they were stationary (0%, 20%, 40% or 60%). We found no evidence that the fish preferred to attack prey depending on the time the prey spent stationary. Randomization tests revealed that prey speed did not influence the predator's choice of which prey to attack, and that the predator's timing of when to attack was not affected by either the time since the prey's last pause or the duration of that pause. Saltatory search, therefore, appears no more beneficial, or costly, than constant motion in terms of vulnerability to predation. This prompts further questions on the costs and benefits of saltatory motion, how predators perceive intermittent motion, and (more broadly) the relationship between movement and predation risk.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"222 ","pages":"Article 123049"},"PeriodicalIF":2.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How do male danaine butterflies locate pyrrolizidine alkaloids? The foreleg as an olfactory alkaloid-sensing organ

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-04-01 DOI: 10.1016/j.anbehav.2024.123059

Keiichi Honda , Mariko Nakata , Yayoi Yoshioka , Hisashi Ômura

{"title":"How do male danaine butterflies locate pyrrolizidine alkaloids? The foreleg as an olfactory alkaloid-sensing organ","authors":"Keiichi Honda , Mariko Nakata , Yayoi Yoshioka , Hisashi Ômura","doi":"10.1016/j.anbehav.2024.123059","DOIUrl":"10.1016/j.anbehav.2024.123059","url":null,"abstract":"<div><div>Most male danaine butterflies are well known for their curious behaviour of visiting some particular plants to acquire pyrrolizidine alkaloids (PAs), which they sequester and utilize for sex pheromone production and chemical defence. However, a robust understanding of the mechanism by which they locate PA sources and their preferences for different structural types of PAs is lacking. An experiment testing the attractiveness or repellency of four PAs to adult male <em>Parantica sita</em> (Danainae) revealed that a mixture of intermedine and lycopsamine (I/L) significantly attracted them, whereas the other PAs, viz. monocrotaline, heliotrine and retronecine, showed potent repellency in decreasing order of intensity. By contrast, these PAs were neither significantly attractive nor repellent to male <em>Ideopsis similis</em>, which is also a PA-phile danaine species. Organ ablation tests in male <em>P. sita</em> on the antenna, foreleg (nonwalking leg) and labial palp as potential PA-receptive organs, carried out in combination with a proboscis extension reflex test in response to I/L odour, indicated that only these organs can be used to detect PAs. Of these organs, the forelegs, especially the foretarsi, appeared to be mostly responsible for the olfactory sensing of PAs. Scanning electron micrographs of the male foretarsi of the abovementioned two species and another danaine butterfly, <em>Euploea mulciber</em>, which is also known to be attracted specifically to I/L, revealed ampullaceous sensilla on their foretarsal surface. In electrophysiological examinations (tip recordings), I/L elicited distinct responses (spikes) from the sensilla of the three species, indicating that the ampullaceous sensilla have both olfactory and gustatory functions. These findings indicate that male nonwalking legs play a key role in PA-seeking danaine butterflies.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"222 ","pages":"Article 123059"},"PeriodicalIF":2.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dogs, demonstrators and detours: does the shape of the obstacle matter?

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-03-25 DOI: 10.1016/j.anbehav.2025.123155

Péter Pongrácz, Blanka Veres

{"title":"Dogs, demonstrators and detours: does the shape of the obstacle matter?","authors":"Péter Pongrácz, Blanka Veres","doi":"10.1016/j.anbehav.2025.123155","DOIUrl":"10.1016/j.anbehav.2025.123155","url":null,"abstract":"<div><div>Making a detour around a transparent obstacle poses a challenge for dogs; however, social learning from a human demonstrator can make the task easier. From among many influencing factors, the effect of obstacle configuration on dogs' detour performance has not yet been investigated. We predicted that dogs would more easily detour around a straight obstacle, such as a fence, than an angulated one, because they would notice more easily the far end of the fence in the case of the straight configuration. We tested <em>N</em> = 84 companion dogs in four groups: straight and V-shaped fence, with and without demonstration. Each dog had to perform three consecutive trials. In the demonstration groups, the experimenter showed the dogs the solution before trials 2 and 3. We found that the dogs' detour latencies improved in both conditions only when they observed a demonstration. Irrespective of the demonstration, dogs were more successful and made a faster detour around the straight fence. In the case of the straight fence/control condition, dogs’ success rate showed a ceiling effect. These results imply that the spatial arrangement of an obstacle can affect the difficulty level of a detour for dogs. When they were able to see the boundaries of the obstacle more easily, either because of the wider angle of visibility or the shorter distance between the start point and the ends of the straight fence, this may have been more effective in inhibiting (futile) direct attempts to obtain the reward behind the obstacle, therefore resulting in higher success. We can assume that dogs may rely on response facilitation rather than stimulus enhancement when they learn from the demonstrator, as they did not show any differences in their social learning success between the two obstacle configurations. Our findings provide new insight on how the spatial layout of an obstacle can be used to potentially disentangle the social learning mechanisms in dogs during a locomotory detour task.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"223 ","pages":"Article 123155"},"PeriodicalIF":2.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Maternal gregariousness and female audience effects mediate mother–infant proximity in wild chimpanzees 野生黑猩猩的母性合群性和雌性受众效应是母婴亲近关系的中介

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-03-25 DOI: 10.1016/j.anbehav.2025.123156

Pawel Fedurek , Cédric Girard-Buttoz , Patrick J. Tkaczynski , Catherine Hobaiter , Klaus Zuberbühler , Roman M. Wittig , Catherine Crockford

{"title":"Maternal gregariousness and female audience effects mediate mother–infant proximity in wild chimpanzees","authors":"Pawel Fedurek , Cédric Girard-Buttoz , Patrick J. Tkaczynski , Catherine Hobaiter , Klaus Zuberbühler , Roman M. Wittig , Catherine Crockford","doi":"10.1016/j.anbehav.2025.123156","DOIUrl":"10.1016/j.anbehav.2025.123156","url":null,"abstract":"<div><div>In animal species with parental care, maintaining offspring–carer proximity is an important adaptation protecting offspring from threats such as predation and conspecific aggression, but doing so may limit other social opportunities. Investigating factors impacting mother–infant proximity can, therefore, provide insights into the evolution of maternal responses towards multidimensional threats. Here, we examine the social factors impacting mother–offspring proximity in two populations of wild chimpanzees with differing levels of infanticidal threats, eastern chimpanzees, <em>Pan troglodytes schweinfurthii</em>, in Budongo Forest, Uganda and western chimpanzees, <em>P. t. verus</em>, in Taï Forest, Ivory Coast. We assessed whether (1) the number of males and females in fission–fusion subgroups predicts proximity levels between mothers and their youngest infants, (2) whether it is mediated by maternal gregariousness and (3) whether this relationship differs in the two populations. In both populations and independent of maternal gregariousness, we found no clear relationship between mother–infant proximity and the number of males in the party. However, in Budongo, where an infanticidal threat is high, mother–infant proximity was mediated by both maternal gregariousness and the number of other females present. Less gregarious mothers were closer to their youngest offspring in parties with large numbers of females, while the opposite pattern applied to highly gregarious mothers. In Taï, more gregarious females were more often in proximity with their offspring. Our results demonstrate that the immediate social environment, maternal social phenotype and overall community-specific threats can all influence maternal response to varying exposure to threats. The consequences of exposure to this environment on offspring’s social development merit further investigation.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"223 ","pages":"Article 123156"},"PeriodicalIF":2.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Factors associated with breeding site fidelity in a nomadic shorebird with extremely low local return rates

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-03-23 DOI: 10.1016/j.anbehav.2025.123151

Peter Santema , Luke Eberhart-Hertel , Anne E. Aulsebrook , Eunbi Kwon , Mihai Valcu , Bart Kempenaers

{"title":"Factors associated with breeding site fidelity in a nomadic shorebird with extremely low local return rates","authors":"Peter Santema , Luke Eberhart-Hertel , Anne E. Aulsebrook , Eunbi Kwon , Mihai Valcu , Bart Kempenaers","doi":"10.1016/j.anbehav.2025.123151","DOIUrl":"10.1016/j.anbehav.2025.123151","url":null,"abstract":"<div><div>Birds that breed across multiple years can either return to the same breeding location or disperse to a different location. The propensity to return to the previous breeding site differs substantially between species, populations and individuals. In biparental socially monogamous birds (>90% of species), breeding site fidelity is typically high. Site fidelity in these species is often associated with higher breeding success and may be favoured by the benefits of remating with the same partner. In uniparental polygamous birds, which form no (or only short) pair-bonds, return rates are typically low, but factors associated with site fidelity are rarely investigated in these species. We examined factors associated with breeding site fidelity in the pectoral sandpiper, an Arctic-breeding polygynous shorebird with female-only care that is largely nomadic, with both sexes showing extremely low site fidelity between years. We individually marked 524 males and 366 females over a period of 4 years and found that the likelihood of returning to the same breeding area in the following year was higher for males (2.4%) than for females (0.5%). Breeding site fidelity of males was predicted by their siring success and tenure: those that had sired offspring with more females and had resided in the breeding area longer were more likely to return. Moreover, males that returned to the study area had higher siring success than males that had not been in the study area the previous year. Breeding site fidelity may be a beneficial strategy for individuals that are successful in a certain location, even in species that are generally nomadic.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"223 ","pages":"Article 123151"},"PeriodicalIF":2.3,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Light modulates population differences in alternative mating tactics in Trinidadian guppies

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-03-23 DOI: 10.1016/j.anbehav.2025.123143

Eleanor Grant , Brett Seymoure , Andrés López-Sepulcre , Yusan Yang , Swanne P. Gordon

{"title":"Light modulates population differences in alternative mating tactics in Trinidadian guppies","authors":"Eleanor Grant , Brett Seymoure , Andrés López-Sepulcre , Yusan Yang , Swanne P. Gordon","doi":"10.1016/j.anbehav.2025.123143","DOIUrl":"10.1016/j.anbehav.2025.123143","url":null,"abstract":"<div><div>A major goal in evolutionary biology is to understand how trade-offs between natural and sexual selection drive the evolution and maintenance of secondary sexual traits. Many organisms exhibit bright, conspicuous colour signals to attract mates, but these signals often come at the cost of increased predation. One way to reduce predation risk is to adjust behaviour according to circadian changes in the local light environment because light determines the perceived conspicuousness of a visual signal. In this study we consider how male mating behaviours change throughout the day in two groups of Trinidadian guppies, <em>Poecilia reticulata</em>, adapted to different levels of predation risk. Using outdoor stream mesocosms, we found that fish adapted to higher predation risk reduced their conspicuous courtship display during midday high-light conditions but increased courtship in the morning and evening conditions. In contrast, low-predation guppies courted in the morning but not in the evening. Males from both habitats reduced courtship when it was brighter, but high-predation males were more sensitive to brightness and hue variations in the morning and evening hours. These results highlight the importance of light environment on courtship display strategies and its consequences on the evolution of sexually selected traits.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"223 ","pages":"Article 123143"},"PeriodicalIF":2.3,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The reduction of nuptial gifts in sclerosomatid Opiliones coincides with an increase in sexual conflict-like behaviour

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-03-22 DOI: 10.1016/j.anbehav.2025.123150

Tyler A. Brown, Emily Marinko , Mercedes Burns

{"title":"The reduction of nuptial gifts in sclerosomatid Opiliones coincides with an increase in sexual conflict-like behaviour","authors":"Tyler A. Brown, Emily Marinko , Mercedes Burns","doi":"10.1016/j.anbehav.2025.123150","DOIUrl":"10.1016/j.anbehav.2025.123150","url":null,"abstract":"<div><div>Nuptial gifts serve to increase donor fitness through a variety of mechanisms, including securing additional copulations, increasing sperm transfer or storage, or increasing paternity share. Coercive mating behaviour can provide similar male benefits, potentially allowing for evolutionary transitions between solicitous and coercive strategies, wherein male behavioural antagonism could function to secure mates in lieu of nuptial gifts. In temperate leiobunine harvesters (Arachnida: Opiliones), nuptial gifts have been repeatedly lost, resulting in two primary mating syndromes: an ancestral, sacculate state in which males endogenously produce high-investment nuptial gifts and females lack pregenital barriers, and a derived, nonsacculate state in which females have pregenital barriers and males produce significantly reduced, low-investment nuptial gifts. In this study, we investigated whether behavioural sexual conflict is elevated in nonsacculate harvesters by comparing pre-, peri- and postcopulatory mating behaviour between the nonsacculate species <em>Leiobunum vittatum</em> and <em>Leiobunum euserratipalpe</em> and the sacculate species <em>Leiobunum aldrichi</em> and <em>Leiobunum bracchiolum</em>. We additionally sought to establish an automated behavioural analysis pipeline by developing analogues for metrics traditionally scored manually. Our results revealed significantly different, potentially coercive, behaviour in nonsacculate species, indicating that the loss and reduction of pre- and pericopulatory nuptial gifts may contribute to increased behavioural antagonism. Mating behaviour also differed significantly between <em>L. vittatum</em> and <em>L. euserratipalpe</em>, indicating there are multiple suites of potentially antagonistic behaviours. Together, these results suggest that multiple behavioural strategies may be effective substitutes for nuptial gifts in leiobunine Opiliones, although the mechanisms through which male fitness is increased requires further research.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"223 ","pages":"Article 123150"},"PeriodicalIF":2.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nest location and pheromone concentrations interact to influence female nest choice in sea lamprey

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-03-22 DOI: 10.1016/j.anbehav.2025.123124

Skye D. Fissette , Tyler J. Buchinger , Sonam Tamrakar , Henry T. Thompson , Weiming Li

{"title":"Nest location and pheromone concentrations interact to influence female nest choice in sea lamprey","authors":"Skye D. Fissette , Tyler J. Buchinger , Sonam Tamrakar , Henry T. Thompson , Weiming Li","doi":"10.1016/j.anbehav.2025.123124","DOIUrl":"10.1016/j.anbehav.2025.123124","url":null,"abstract":"<div><div>Animal communication is dynamic; factors such as signal attributes, signaller and receiver positioning, and environment can interactively influence information exchange. However, most research has focused on the signals and preferences while neglecting the broader context in which they function. Using sea lamprey, <em>Petromyzon marinus</em>, we studied the effects of male signalling location on female nest choice. Male sea lamprey aggregate on spawning grounds in rivers where they build nests and release a sex pheromone to attract females. In controlled studies, females select nests with the highest relative concentration of pheromone, indicating some degree of mate choice following pheromone concentrations. In reality, however, the characteristics of pheromone signals detected by females (e.g. concentration) are shaped not only by the odour males emit but how they are transmitted downstream via river currents. We hypothesized that the effects of pheromone preferences on female nest choice also depend on the location of male nests. To test our hypothesis, we first surveyed the spatial distribution and use frequency of spawning nests in a wild population of sea lamprey. We then conducted instream behavioural assays using paired nest sites at two experimental locations and found that nest location and pheromone concentration impacted female nest choice. These behavioural results, along with indirect evidence for differences in pheromone plume dispersal at each site, suggest that signalling location and pheromone concentration may influence mate choice in sea lamprey. Although additional environmental factors likely influence natural mating decisions, our results highlight the importance of considering both signal attributes and the surrounding environment when studying communication networks.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"222 ","pages":"Article 123124"},"PeriodicalIF":2.3,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Male bushcrickets show context-dependent plasticity in temporal signal features during acoustic contests

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-03-21 DOI: 10.1016/j.anbehav.2025.123153

Fran Rebrina , Marianna Anichini , Karl-Heinz Frommolt , Arne W. Lehmann , Michael S. Reichert , Gerlind U.C. Lehmann

{"title":"Male bushcrickets show context-dependent plasticity in temporal signal features during acoustic contests","authors":"Fran Rebrina , Marianna Anichini , Karl-Heinz Frommolt , Arne W. Lehmann , Michael S. Reichert , Gerlind U.C. Lehmann","doi":"10.1016/j.anbehav.2025.123153","DOIUrl":"10.1016/j.anbehav.2025.123153","url":null,"abstract":"<div><div>Males of sound-communicating species typically emit acoustic signals both to attract mating partners and compete against rival males. Temporal properties of these signals convey information about the males’ condition and quality as potential mates. Previous studies on acoustic competition in bushcrickets have shown that temporal features are plastic and may vary depending on male body condition and social context, including the distance, number and quality of competitors. Prolonged acoustic contests may also prompt signalling males to modify their calling behaviour over time. To investigate context-dependent behavioural plasticity in bushcrickets, we analysed the temporal properties of <em>Poecilimon ampliatus</em> male signals, specifically verse duration, verse number and duty cycle, in relation to their social environment, body mass as a predictor of body condition and the time spent in signalling competition. Males from two distinct body mass classes, light and heavy, were tested at the beginning and the end of a 50 min recording period under two conditions: a playback experiment simulating competition with a strong rival and no playback. Regardless of their body mass, <em>P. ampliatus</em> males adjusted temporal signal features depending on the social context, promptly increasing their signalling effort under competition compared with isolation. However, behaviourally plastic responses of light males to competition also varied over time, likely due to tradeoffs imposed by prolonged competitive signalling. These findings highlight the importance of adaptive signal modifications in mediating competitive interactions in bushcrickets, with potential implications for female choice.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"223 ","pages":"Article 123153"},"PeriodicalIF":2.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Escape behaviour of translocated eastern barred bandicoots differs in relation to invasive predators but not competitors

IF 2.3 2区生物学

Animal Behaviour Pub Date : 2025-03-20 DOI: 10.1016/j.anbehav.2025.123149

Joel Krauss , Sam A. Di Stefano , Michael A. Weston , Kaori Yokochi , Roan D. Plotz , Anthony R. Rendall

{"title":"Escape behaviour of translocated eastern barred bandicoots differs in relation to invasive predators but not competitors","authors":"Joel Krauss , Sam A. Di Stefano , Michael A. Weston , Kaori Yokochi , Roan D. Plotz , Anthony R. Rendall","doi":"10.1016/j.anbehav.2025.123149","DOIUrl":"10.1016/j.anbehav.2025.123149","url":null,"abstract":"<div><div>Australia has the worst mammal extinction record of any country, with invasive predators and competitors being key threatening processes. Australian mammals are thought to exhibit predator naivety due to limited coevolution with eutherian predators, which therefore suppress their abundance and hamper reintroduction efforts. We indexed escape behaviour by collecting flight-initiation distances (FIDs) and the orientation of escape across populations of the endangered eastern barred bandicoot, <em>Perameles gunnii</em>, exposed to an introduced predator (feral cats, <em>Felis catus</em>) and competitor (European rabbits, <em>Oryctolagus cuniculus</em>). Bandicoots in the presence of both cats and rabbits had longer FIDs than bandicoots in areas with rabbits only or with neither cats nor rabbits. Longer starting distances were associated with a greater likelihood of fleeing towards cover, and wind noise could potentially limit approach detection. This indicates some behavioural plasticity and nuance in bandicoot escapes associated with predators but not competitors, perhaps due to learning and/or selection. Predator-savvy bandicoots may exist, and this behaviour can develop over a relatively short time span. These individuals are likely to increase future translocation success in environments with predators.</div></div>","PeriodicalId":50788,"journal":{"name":"Animal Behaviour","volume":"222 ","pages":"Article 123149"},"PeriodicalIF":2.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0