Neural and behavioral evolution in an eavesdropper with a rapidly evolving host

Current Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

The diversification of animal communication systems is driven by the interacting effects signalers, signal receivers, and environment. Yet, critical role unintended like eavesdropping enemies, has been underappreciated. Furthermore, contemporary evolution signals rare, making it difficult to directly observe this process. Ormiine parasitoid flies rely exclusively on acoustic cues locate singing male orthopteran hosts. In Hawaii, selection imposed Ormia ochracea led recent rapid their local host crickets' song. We use complementary lab field experiments understand how receiver psychology (sensory cognitive mechanisms) evolves accommodate a new that host's signal. Receiver our understanding host-parasite coevolution communication, as sensory system establishes limits behavioral responses exert signals. demonstrate neural auditory tuning behavior O. have evolved in these differences likely facilitate detection novel songs. Further, recently songs are highly variable among males, prefer with particular spectral characteristics, enabling us predict eavesdroppers may shape song evolution. To knowledge, first evidence for an eavesdropper. Our work links systems, signals, behavior, heeding call better integration mechanisms receivers into communication.

Language: Английский

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Connecting and integrating cooperation within and between species

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1909)

Published: July 22, 2024

There has long been a fundamental divide in the study of cooperation: researchers focus either on cooperation within species, including but not limited to sociality, or else between commonly termed mutualism. Here, we explore ecologically and evolutionarily significant ways which within- between-species interact. We highlight two primary cross-linkages. First, one type can change context other functions, thus potentially its outcome. delineate three possibilities: (i) within-species modulates benefits for heterospecific partner; (ii) affects dynamics cooperation; (iii) both processes take place interactively. The second cross-linkage emerges when resources services that makes available are obtainable from members same species different species. This brings at levels into direct interaction, some extent obscuring distinction them. expand these intersections diversity taxa interaction types. These interactions have potential weave together social networks trophic dynamics, contributing structure functioning ecological communities just beginning be explored. article is part theme issue 'Connected interactions: enriching food web research by spatial interactions'.

Language: Английский

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The ontogeny of decision-making in an eavesdropping predator

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 292(2045)

Published: April 1, 2025

Predators use prey-emitted cues to assess and localize potential food sources. Sexual advertisement calls offer conspicuous for eavesdropping predators. While the ontogeny of predatory behaviour is key survival can determine adult responses, our understanding development responses limited. Here, we measured juvenile fringe-lipped bats ( Trachops cirrhosus ) acoustic co-occurring anurans. We confirmed that modulate their foraging based on prey’s associated with prey palatability. The revealed plays an important role in bat responses. In contrast adults, palatability did not predict juveniles, which responded strongly poisonous toads little some palatable frog species, suggesting avoidance species learned through experience. Despite these differences, both juveniles adults appeared attend related body size. Our results support hypothesis that, over development, preferences predators become more closely aligned advantageous outcomes. Overall, first evidence developmental changes refining decision-making predator wild.

Language: Английский

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Parasite effects on receivers in animal communication: Hidden impacts on behavior, ecology, and evolution

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 120(30)

Published: July 17, 2023

Parasites exert a profound effect on biological processes. In animal communication, parasite effects signalers are well-known drivers of the evolution communication systems. Receiver behavior is also likely to be altered when they parasitized or at risk parasitism, but these have received much less attention. Here, we present broad framework for understanding consequences parasitism receivers behavioral, ecological, and evolutionary First, outline different kinds parasites can receivers, including signal processing from many that inhabit, occlude, damage sensory periphery central nervous system affect physiological processes support organs, receiver response strategies. We then demonstrate how could answer important questions about mechanistic causes functional variation in Variation levels source among-individual differences signals, which fitness and, through signaler fitness, impact population variability. The prevalence parasitic specific organs may an selective force elaborate multimodal signals. Finally, host–parasite coevolution across heterogeneous landscapes will generate geographic systems, ultimately lead divergence. discuss applications experimental techniques manipulate point way forward by calling integrative research collaborations between parasitologists, neurobiologists, behavioral ecologists.

Language: Английский

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Parasitoid–host eavesdropping reveals temperature coupling of preferences to communication signals without genetic coupling

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(2005)

Published: Aug. 16, 2023

Receivers of acoustic communication signals evaluate signal features to identify conspecifics. Changes in the ambient temperature can alter these features, rendering species recognition a challenge. To maintain effective communication, coupling-changes receiver preferences that parallel temperature-induced changes parameters-occurs among genetically coupled signallers and receivers. Whether eavesdroppers exhibit coupling is unknown. Here, we investigate if parasitoid fly Ormia ochracea, an eavesdropper cricket calling songs, exhibits song pulse rate are coupled. We use high-speed treadmill system record walking phonotaxis at three temperatures (21, 25, 30°C) response songs varied rates (20 90 pulses per second). Total distance, peak steering velocity, angular heading, performance index with temperature. The preference functions became broader shifted higher values temperatures. Temperature-related between 21 30°C did not drastically affect ability flies recognize songs. These results confirm occur signallers.

Language: Английский

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The evolution of prey-attraction strategies in spiders: the interplay between foraging and predator avoidance

Oecologia, Journal Year: 2023, Volume and Issue: 202(4), P. 669 - 684

Published: Aug. 1, 2023

Abstract Lures and other adaptations for prey attraction are particularly interesting from an evolutionary viewpoint because they characterized by correlational selection, involve multicomponent signals, likely reflect a compromise between maximizing conspicuousness to while avoiding drawing attention of enemies predators. Therefore, investigating the evolution lure prey-attraction can help us understand larger set traits governing interactions among organisms. We review literature focusing on spiders ( Araneae ), which is most diverse animal group using show that strategies must be driven trade-off foraging predator avoidance. This increasing detectability potential often also results in increased predators higher food chain. Thus come at cost risk predation. Given this trade-off, we should expect lures remain suboptimal despite reach optimal level attractiveness. argue presence multivariate nature two important mechanisms might maintain diversity within species. Overall, aim stimulate research topic progress our general understanding interactions.

Language: Английский

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Effect of Interfering Transmitter on the Secrecy of Diffusive Molecular Timing Channels

IEEE Transactions on Communications, Journal Year: 2024, Volume and Issue: 72(6), P. 3323 - 3337

Published: Feb. 13, 2024

This paper investigates the information-theoretic security of multi-particle diffusive molecular timing (DMT) channels for noise-limited and interference-limited scenarios. By utilizing a channel capacity upper bound expression, we obtain secrecy outage probability (SOP), average rate (ASOR), duration (ASOD) expressions when number molecules arriving at Eve from Alice Interferer follows Gaussian distribution. Subsequently, effect various parameters, such as Lévy noise parameter, degradation, correlation on metrics, is studied both In system, increasing degradation leads to compromisation, with an increase in SOP ASOD simultaneous decrease ASOR.We also observe significant improvement system's secrecy, especially terms ASOR, parameter. Concurrently, analyze parameter's scenario. From ASOR perspectives, find that correlation, system increases. However, parameter negatively impacts secrecy. Finally, extending our analysis three-dimensional environment reveals additional dimensions lead deterioration cases.

Language: Английский

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Behavioral responses to predator and heterospecific alarm calls are habitat-specific in Eurasian tree sparrows

Behavioural Processes, Journal Year: 2024, Volume and Issue: 218, P. 105043 - 105043

Published: April 29, 2024

Language: Английский

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Temperature effects on interspecific eavesdropping in the wild

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 29, 2024

Abstract Mating signals are targets of conspecific signal recognition and sexual selection, but also subject to abiotic temperature effects biotic interspecific eavesdroppers. In crickets, the male calling song becomes faster at warmer temperatures, female crickets’ tracks in a coordinated manner, termed ‘temperature coupling.’ But crickets not only ecologically relevant listeners: some cricket species parasitized by Ormia ochracea , parasitoid fly which finds its hosts eavesdropping on song. How affects phonotaxis is largely unexplored, with one previous study conducted under field conditions. Here we explore six possible patterns thermal responses song, including coupling, using playbacks synthetic Gryllus lineaticeps songs designed be species-typical various temperatures. We find that does affect response, deviation from ambient impact numbers flies caught. extend this finding comparing temperatures air ground show coupling unlikely effective given microhabitat variation differential rates cooling evening hours when most active. Our results can interpreted more broadly suggest (i) intraspecific communication systems may tightly coupled than eavesdropping, (ii) microhabitats make it difficult translate laboratory physiological natural selection wild. Lay Summary change temperature, sometimes mating intercepted predators or parasites. By wild, changes do response However, induced part due unpredictable typical flies.

Language: Английский

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Snake-like bird hisses induce anti-predator responses in a frog

BMC Ecology and Evolution, Journal Year: 2024, Volume and Issue: 24(1)

Published: Oct. 12, 2024

Some snakes emit hissing calls which are imitated by birds to deter potential predators. However, the effect of these snake and bird hisses on anuran risk recognition is not yet explored. Here we hypothesize that may advertise dangers frogs evoke their anti-predator responses. We used little torrent (Amolops torrentis) as subjects conducted sound playbacks test behaviors. found changed calling behaviors during sympatric hiss playbacks, but showed no response white noise allopatric playbacks. They did respond avian has low acoustic similarity with sounds. they decreased activity in high snakes. As compared other treatments, more individuals ceased highly similar hiss. These results suggest recognize risks from snake-like perform

Language: Английский

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