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Pardo C, Bellati A, Polverino G, Canestrelli D. The dark side of organic farming: Copper sulphate compromises the life history and behaviour of the walking stick insect, Bacillus rossius. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 942:173626. [PMID: 38844229 DOI: 10.1016/j.scitotenv.2024.173626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 05/22/2024] [Accepted: 05/27/2024] [Indexed: 06/10/2024]
Abstract
Organic farming is considered the most sustainable form of modern soil cultivation. Yet it often relies on the use of chemical compounds that are not necessarily harmless for the surrounding wildlife. In this study, we tested the effects of realistic concentrations of copper sulphate-largely used in organic farming as a fungicide-on ecologically-relevant traits of the walking stick insect Bacillus rossius, a species commonly found in the proximity of cultivated fields across Europe. By using second-generation progeny of wild-caught parthenogenetic females bred in common gardens, we measured the impact of copper sulphate (CuSO4) on both the life-history (body condition, number of eggs, and hatching success) and behavioural traits (activity and maximum vertical speed) of the individuals. We observed strong negative effects of high, realistic concentrations of copper sulphate on most traits within 12 days of exposure, while effects were less evident at lower concentrations of the pollutant. Our results reveal that realistic concentrations of copper sulphate can compromise important traits that regulate both the survival and reproduction of animals in the wild, with such effects that are, however, dose dependent. We suggest that common practices in organic farming require further consideration on their ecological and evolutionary impact on wildlife.
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Affiliation(s)
- Claudio Pardo
- Department of Ecological and Biological Sciences, University of Tuscia, Italy
| | - Adriana Bellati
- Department of Ecological and Biological Sciences, University of Tuscia, Italy
| | - Giovanni Polverino
- Department of Ecological and Biological Sciences, University of Tuscia, Italy; School of Biological Sciences, Monash University, Australia; School of Biological Sciences, The University of Western Australia, Australia.
| | - Daniele Canestrelli
- Department of Ecological and Biological Sciences, University of Tuscia, Italy
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2
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Rickward RA, Santostefano F, Wilson AJ. Among-individual behavioural variation in the ornamental red cherry shrimp, Neocaridina heteropoda. Ecol Evol 2024; 14:e11049. [PMID: 38389999 PMCID: PMC10883255 DOI: 10.1002/ece3.11049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/24/2024] Open
Abstract
Personality variation, defined as among-individual differences in behaviour that are repeatable across time and context, is widely reported across animal taxa. From an evolutionary perspective, characterising the amount and structure of this variation is useful since differences among individuals are the raw material for adaptive behavioural evolution. However, behavioural variation among individuals also has implications for more applied areas of evolution and ecology-from invasion biology to ecotoxicology and selective breeding in captive systems. Here, we investigate the structure of personality variation in the red cherry shrimp, Neocaridina heteropoda, a popular ornamental species that is readily kept and bred under laboratory conditions and is emerging as a decapod crustacean model across these fields, but for which basic biological, ecological and behavioural data are limited. Using two assays and a repeated measures approach, we quantify behaviours putatively indicative of shy-bold variation and test for sexual dimorphism and/or size-dependent behaviours (as predicted by some state-dependent models of personality). We find moderate-to-high behavioural repeatabilities in most traits. Although strong individual-level correlations across behaviours are consistent with a major personality axis underlying these observed traits, the multivariate structure of personality variation does not fully match a priori expectations of a shy-bold axis. This may reflect our ecological naivety with respect to what really constitutes bolder, more risk-prone, behaviour in this species. We find no evidence for sexual dimorphism and only weak support for size-dependent behaviour. Our study contributes to the growing literature describing behavioural variation in aquatic invertebrates. Furthermore, it lays a foundation for further studies harnessing the potential of this emerging model system. In particular, this existing behavioural variation could be functionally linked to life-history traits and invasive success and serve as a target of artificial selection or bioassays. It thus holds significant promise in applied research across ecotoxicology, aquaculture and invasion biology.
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Affiliation(s)
| | - Francesca Santostefano
- Centre for Ecology and Conservation University of Exeter Cornwall UK
- Département des Sciences Biologiques Université du Québec à Montréal Montréal Quebec Canada
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3
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Mezőfi L, Markó V, Taranyi DÁ, Markó G. Sex-specific life-history strategies among immature jumping spiders: Differences in body parameters and behavior. Curr Zool 2023; 69:535-551. [PMID: 37637309 PMCID: PMC10449423 DOI: 10.1093/cz/zoac069] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/02/2022] [Indexed: 08/29/2023] Open
Abstract
Selection forces often generate sex-specific differences in various traits closely related to fitness. While in adult spiders (Araneae), sexes often differ in coloration, body size, antipredator, or foraging behavior, such sex-related differences are less pronounced among immatures. However, sex-specific life-history strategies may also be adaptive for immatures. Thus, we hypothesized that among spiders, immature individuals show different life-history strategies that are expressed as sex-specific differences in body parameters and behavioral features, and also in their relationships. We used immature individuals of a protandrous jumping spider, Carrhotus xanthogramma, and examined sex-related differences. The results showed that males have higher mass and larger prosoma than females. Males were more active and more risk tolerant than females. Male activity increased with time, and larger males tended to capture the prey faster than small ones, while females showed no such patterns. However, females reacted to the threatening abiotic stimuli more with the increasing number of test sessions. In both males and females, individuals with better body conditions tended to be more risk averse. Spiders showed no sex-specific differences in interindividual behavioral consistency and in intraindividual behavioral variation in the measured behavioral traits. Finally, we also found evidence for behavioral syndromes (i.e., correlation between different behaviors), where in males, only the activity correlated with the risk-taking behavior, but in females, all the measured behavioral traits were involved. The present study demonstrates that C. xanthogramma sexes follow different life-history strategies even before attaining maturity.
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Affiliation(s)
- László Mezőfi
- Institute of Plant Protection, Hungarian University of Agriculture and Life Sciences, Budapest 1118, Hungary
| | - Viktor Markó
- Institute of Plant Protection, Hungarian University of Agriculture and Life Sciences, Budapest 1118, Hungary
| | - Dóra Ágnes Taranyi
- Institute of Viticulture and Enology, Hungarian University of Agriculture and Life Sciences, Budapest 1118, Hungary
| | - Gábor Markó
- Institute of Plant Protection, Hungarian University of Agriculture and Life Sciences, Budapest 1118, Hungary
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Han CS, Lee B, Moon J. Activity-aggression behavioural syndromes exist in males but not in females of the field cricket Teleogryllus emma. Ecol Evol 2023; 13:e10642. [PMID: 37859828 PMCID: PMC10582681 DOI: 10.1002/ece3.10642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/20/2023] [Accepted: 10/09/2023] [Indexed: 10/21/2023] Open
Abstract
Previous studies on sex differences in behaviour have largely focused on differences in average behaviours between sexes. However, males and females can diverge not only in average behaviours but also in the direction of behavioural correlations at the individual level (i.e. behavioural syndromes). Behavioural syndromes, with their potential to constrain the independent evolution of behaviours, may play a role in shaping sex-specific responses to selection and contributing to the development of sex differences in behaviour. Despite the pivotal role of behavioural syndromes in the evolution of sexual dimorphism in behaviour, robust empirical evidence of sex differences in behavioural syndromes based on repeated measurements of behaviours is scarce. In this study, we conducted repeated measurements of activity and aggression in male and female field crickets Teleogryllus emma, providing evidence of sex differences in the existence of behavioural syndromes. Males exhibited a significantly positive behavioural syndrome between activity and aggression, whereas females, in contrast, did not show any aggressive behaviour, resulting in the absence of such a syndrome. The sex differences in the existence of the activity-aggression behavioural syndromes in this species could be attributed to differences in selection. Selection favouring more active and aggressive males may have shaped a positive activity-aggression behavioural syndrome in males, whereas the absence of selection favouring female aggression may have resulted in the absence of aggression and the related behavioural syndrome in females. However, given the plasticity of behaviour with changes in age or the environment, further research is needed to explore how sex differences in the existence of activity-aggression behavioural syndromes change across contexts. Furthermore, understanding the genetic underpinning of sex differences in a behavioural syndrome would be pivotal to assess the role of behavioural syndromes in the evolution of sexual dimorphism in behaviours.
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Affiliation(s)
- Chang S. Han
- Department of BiologyKyung Hee UniversitySeoulKorea
| | - Byeongho Lee
- Department of BiologyKyung Hee UniversitySeoulKorea
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5
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State and physiology behind personality in arthropods: a review. Behav Ecol Sociobiol 2022. [DOI: 10.1007/s00265-022-03259-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractIn the endeavour to understand the causes and consequences of the variation in animal personality, a wide range of studies were carried out, utilising various aspects to make sense of this biological phenomenon. One such aspect integrated the study of physiological traits, investigating hypothesised physiological correlates of personality. Although many of such studies were carried out on vertebrates (predominantly on birds and mammals), studies using arthropods (mainly insects) as model organisms were also at the forefront of this area of research. In order to review the current state of knowledge on the relationship between personality and the most frequently studied physiological parameters in arthropods, we searched for scientific articles that investigated this relationship. In our review, we only included papers utilising a repeated-measures methodology to be conceptually and formally concordant with the study of animal personality. Based on our literature survey, metabolic rate, thermal physiology, immunophysiology, and endocrine regulation, as well as exogenous agents (such as toxins) were often identified as significant affectors shaping animal personality in arthropods. We found only weak support for state-dependence of personality when the state is approximated by singular elements (or effectors) of condition. We conclude that a more comprehensive integration of physiological parameters with condition may be required for a better understanding of state’s importance in animal personality. Also, a notable knowledge gap persists in arthropods regarding the association between metabolic rate and hormonal regulation, and their combined effects on personality. We discuss the findings published on the physiological correlates of animal personality in arthropods with the aim to summarise current knowledge, putting it into the context of current theory on the origin of animal personality.
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Merleau LA, Larrigaldie I, Bousquet O, Devers S, Keller M, Lécureuil C, Meunier J. Exposure to pyriproxyfen (juvenile hormone agonist) does not alter maternal care and reproduction in the European earwig. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:72729-72746. [PMID: 35610459 DOI: 10.1007/s11356-022-20970-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Sublethal exposure to pesticides can alter the survival and reproduction of a wide range of non-target organisms. However, it remains unclear whether this exposure can alter behaviours that are often essential for long-term population dynamics and maintenance, such as parental care. In this study, we tested the effect of pyriproxyfen exposure (an insect growth regulator) on maternal care in the European earwig, an insect that is both used in pest control in pip-fruit orchards and considered a pest in stone fruit orchards. We exposed 424 females at doses either 10 times lower, equivalent or 10 times higher than normal application rates in French orchards. As maternal care can change over the weeks of family life, we exposed the earwig mothers at five different days before and after egg hatching. We then measured the expression of ten forms of maternal care towards eggs and juveniles, six non-caring behaviours, eggs and juvenile development, metabolic reserves in mothers at egg hatching and females' production of a terminal clutch. First, our results revealed that the three tested doses of pyriproxyfen were non-lethal and confirmed that maternal care decreased throughout both pre- and post-hatching family life. However, we did not detect any effect of pyriproxyfen on maternal care and non-care behaviours, eggs and juvenile development, quantities of lipids, proteins and glycogen in mothers at egg hatching, and on the production of a future clutch. Overall, these findings suggest that the maximal doses of pyriproxyfen authorized in French orchards is likely to have limited effects on the short- and long-term maintenance of populations of the European earwig and raises fundamental questions about the nature of the link between juvenile hormone and parental care in insects.
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Affiliation(s)
- Leslie-Anne Merleau
- Institut de Recherche sur la Biologie de l'Insecte, UMR7261, CNRS, University of Tours, Tours, France
| | - Izïa Larrigaldie
- Institut de Recherche sur la Biologie de l'Insecte, UMR7261, CNRS, University of Tours, Tours, France
| | - Océane Bousquet
- Institut de Recherche sur la Biologie de l'Insecte, UMR7261, CNRS, University of Tours, Tours, France
| | - Séverine Devers
- Institut de Recherche sur la Biologie de l'Insecte, UMR7261, CNRS, University of Tours, Tours, France
| | - Matthieu Keller
- Laboratoire de Physiologie de la Reproduction & des Comportements, UMR 7247 INRAE/CNRS/Université de Tours/IFCE, Nouzilly, France
| | - Charlotte Lécureuil
- Institut de Recherche sur la Biologie de l'Insecte, UMR7261, CNRS, University of Tours, Tours, France
| | - Joël Meunier
- Institut de Recherche sur la Biologie de l'Insecte, UMR7261, CNRS, University of Tours, Tours, France.
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de Jong M, Phillips BL, Llewelyn J, Chapple DG, Wong BBM. Effects of developmental environment on animal personality in a tropical skink. Behav Ecol Sociobiol 2022. [DOI: 10.1007/s00265-022-03240-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Abstract
Developmental environments play a significant role in shaping animal phenotype, including behavior. Within a species, individuals often differ in behavior in a consistent and repeatable way (i.e., demonstrate animal personality). This consistency in behavior can be affected by differences in conditions experienced early in life. It is, however, unclear whether effects of developmental environments on animal personality are driven by changes in within- or between-individual variation. To investigate this, we measured activity, exploration, sociability, and boldness in adult male southern rainforest sunskinks, Lampropholis similis, incubated at either 23 °C or 26 °C, and compared behavioral phenotypes between these incubation treatments. We also compared the behavior of these incubation groups to a cohort of wild-caught skinks to determine whether rearing in captivity also affected the personality of the lizards. Skinks that had been incubated at a higher temperature were more explorative and demonstrated personality in a larger suite of traits compared to lizards incubated at a lower temperature or caught in the wild. These differences among developmental environment were primarily driven by within-individual variation, which tended to be higher among the high incubation treatment. We also found no evidence for a behavioral syndrome in either captive- or wild-reared skinks. Our results suggest the potential for greater behavioral plasticity in skinks incubated at a higher temperature, which may enable them to cope with environmental change, such as climate warming, in the short term. Overall, we show that effects of developmental environment are complex and play a pivotal role in shaping animal personality.
Significance statement
Experiences during development are expected to influence how animals develop, including their behavior. We tested early environment effects on behavior in adult southern rainforest sunskinks by comparing lizards incubated at different temperatures as well as comparing those reared in the wild with those reared in captive environments. We found that lizards incubated at the higher temperature were more exploratory. Furthermore, both incubation temperature and captivity/wild-rearing had pronounced effects on the consistency of behavior—in different directions for different traits—demonstrating developmental environments have strong effects on animal personality. Such changes in behavioral traits likely have flow-on effects for the animal’s fitness and biotic interactions.
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8
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Bertram MG, Martin JM, McCallum ES, Alton LA, Brand JA, Brooks BW, Cerveny D, Fick J, Ford AT, Hellström G, Michelangeli M, Nakagawa S, Polverino G, Saaristo M, Sih A, Tan H, Tyler CR, Wong BB, Brodin T. Frontiers in quantifying wildlife behavioural responses to chemical pollution. Biol Rev Camb Philos Soc 2022; 97:1346-1364. [PMID: 35233915 PMCID: PMC9543409 DOI: 10.1111/brv.12844] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 02/13/2022] [Accepted: 02/16/2022] [Indexed: 12/26/2022]
Abstract
Animal behaviour is remarkably sensitive to disruption by chemical pollution, with widespread implications for ecological and evolutionary processes in contaminated wildlife populations. However, conventional approaches applied to study the impacts of chemical pollutants on wildlife behaviour seldom address the complexity of natural environments in which contamination occurs. The aim of this review is to guide the rapidly developing field of behavioural ecotoxicology towards increased environmental realism, ecological complexity, and mechanistic understanding. We identify research areas in ecology that to date have been largely overlooked within behavioural ecotoxicology but which promise to yield valuable insights, including within- and among-individual variation, social networks and collective behaviour, and multi-stressor interactions. Further, we feature methodological and technological innovations that enable the collection of data on pollutant-induced behavioural changes at an unprecedented resolution and scale in the laboratory and the field. In an era of rapid environmental change, there is an urgent need to advance our understanding of the real-world impacts of chemical pollution on wildlife behaviour. This review therefore provides a roadmap of the major outstanding questions in behavioural ecotoxicology and highlights the need for increased cross-talk with other disciplines in order to find the answers.
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Affiliation(s)
- Michael G. Bertram
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
| | - Jake M. Martin
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Erin S. McCallum
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
| | - Lesley A. Alton
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Jack A. Brand
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Bryan W. Brooks
- Department of Environmental ScienceBaylor UniversityOne Bear PlaceWacoTexas76798‐7266U.S.A.
| | - Daniel Cerveny
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of HydrocenosesUniversity of South Bohemia in Ceske BudejoviceZátiší 728/IIVodnany389 25Czech Republic
| | - Jerker Fick
- Department of ChemistryUmeå UniversityLinnaeus väg 10UmeåVästerbottenSE‐907 36Sweden
| | - Alex T. Ford
- Institute of Marine SciencesUniversity of PortsmouthWinston Churchill Avenue, PortsmouthHampshirePO1 2UPU.K.
| | - Gustav Hellström
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
| | - Marcus Michelangeli
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
- Department of Environmental Science and PolicyUniversity of California350 E Quad, DavisCaliforniaCA95616U.S.A.
| | - Shinichi Nakagawa
- Evolution & Ecology Research Centre, School of Biological, Earth and Environmental SciencesUniversity of New South Wales, Biological Sciences West (D26)SydneyNSW2052Australia
| | - Giovanni Polverino
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
- Centre for Evolutionary Biology, School of Biological SciencesUniversity of Western Australia35 Stirling HighwayPerthWA6009Australia
- Department of Ecological and Biological SciencesTuscia UniversityVia S.M. in Gradi n.4ViterboLazio01100Italy
| | - Minna Saaristo
- Environment Protection Authority VictoriaEPA Science2 Terrace WayMacleodVictoria3085Australia
| | - Andrew Sih
- Department of Environmental Science and PolicyUniversity of California350 E Quad, DavisCaliforniaCA95616U.S.A.
| | - Hung Tan
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Charles R. Tyler
- Biosciences, College of Life and Environmental SciencesUniversity of ExeterStocker RoadExeterDevonEX4 4QDU.K.
| | - Bob B.M. Wong
- School of Biological SciencesMonash University25 Rainforest WalkMelbourneVictoria3800Australia
| | - Tomas Brodin
- Department of Wildlife, Fish, and Environmental StudiesSwedish University of Agricultural SciencesSkogsmarksgränd 17UmeåVästerbottenSE‐907 36Sweden
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9
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Tregenza T, Niemelä PT, Rodríguez-Muñoz R, Hopwood PE. Environment and mate attractiveness in a wild insect. Behav Ecol 2022; 33:999-1006. [PMCID: PMC9639583 DOI: 10.1093/beheco/arac067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 11/16/2022] Open
Abstract
The role of female choice in sexual selection is well established, including the recognition that females choose their mates based on multiple cues. These cues may include intrinsic aspects of a male’s phenotype as well as aspects of the environment associated with the male. The role of the spatial location of a potential mate has been well studied in territorial vertebrates. However, despite their role as laboratory models for studies of sexual selection, the potential for insects to choose their mates on the basis of location has scarcely been studied. We studied a natural population of individually tagged crickets (Gryllus campestris) in a meadow in Northern Spain. Adults typically move between burrows every few days, allowing us to examine how pairing success of males can be predicted by the burrow they occupy, independent of their own characteristics. We observed the entirety of ten independent breeding seasons to provide replication and to determine whether the relative importance of these factors is stable across years. We find that both male ID and the ID his burrow affect the likelihood that he is paired with a female, but the burrow has a consistently greater influence. Furthermore, the two factors interact: the relative attractiveness of an individual male depends on which burrow he occupies. Our finding demonstrates a close interaction between naturally and sexually selected traits. It also demonstrates that mate choice studies may benefit from considering not only obvious secondary sexual traits, but also more cryptic traits such as microhabitat choice.
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Affiliation(s)
- Tom Tregenza
- Centre for Ecology and Conservation, School of Biosciences, University of Exeter , Exeter , UK
| | - Petri T Niemelä
- Organismal and Evolutionary Biology Research Programme, University of Helsinki , Viikinkaari, Biocenter, Helsinki , Finland
| | - Rolando Rodríguez-Muñoz
- Centre for Ecology and Conservation, School of Biosciences, University of Exeter , Exeter , UK
| | - Paul E Hopwood
- Centre for Ecology and Conservation, School of Biosciences, University of Exeter , Exeter , UK
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10
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Harrison LM, Noble DWA, Jennions MD. A meta-analysis of sex differences in animal personality: no evidence for the greater male variability hypothesis. Biol Rev Camb Philos Soc 2021; 97:679-707. [PMID: 34908228 DOI: 10.1111/brv.12818] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 11/13/2021] [Accepted: 11/17/2021] [Indexed: 12/18/2022]
Abstract
The notion that men are more variable than women has become embedded into scientific thinking. For mental traits like personality, greater male variability has been partly attributed to biology, underpinned by claims that there is generally greater variation among males than females in non-human animals due to stronger sexual selection on males. However, evidence for greater male variability is limited to morphological traits, and there is little information regarding sex differences in personality-like behaviours for non-human animals. Here, we meta-analysed sex differences in means and variances for over 2100 effects (204 studies) from 220 species (covering five broad taxonomic groups) across five personality traits: boldness, aggression, activity, sociality and exploration. We also tested if sexual size dimorphism, a proxy for sex-specific sexual selection, explains variation in the magnitude of sex differences in personality. We found no significant differences in personality between the sexes. In addition, sexual size dimorphism did not explain variation in the magnitude of the observed sex differences in the mean or variance in personality for any taxonomic group. In sum, we find no evidence for widespread sex differences in variability in non-human animal personality.
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Affiliation(s)
- Lauren M Harrison
- Division of Ecology and Evolution, Research School of Biology, The Australian National University, 46 Sullivans Creek Road, Canberra, ACT, 2600, Australia
| | - Daniel W A Noble
- Division of Ecology and Evolution, Research School of Biology, The Australian National University, 46 Sullivans Creek Road, Canberra, ACT, 2600, Australia
| | - Michael D Jennions
- Division of Ecology and Evolution, Research School of Biology, The Australian National University, 46 Sullivans Creek Road, Canberra, ACT, 2600, Australia
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11
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Brand JA, Naimo AC, Michelangeli M, Martin JM, Sih A, Wong BBM, Chapple DG. Population differences in the effect of context on personality in an invasive lizard. Behav Ecol 2021. [DOI: 10.1093/beheco/arab102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Within populations, individuals often differ consistently in their average level of behavior (i.e., animal personality), as well as their response to environmental change (i.e., behavioral plasticity). Thus, changes in environmental conditions might be expected to mediate the structure of animal personality traits. However, it is currently not well understood how personality traits change in response to environmental conditions, and whether this effect is consistent across multiple populations within the same species. Accordingly, we investigated variation in personality traits across two ecological contexts in the invasive delicate skink (Lampropholis delicata). Specifically, lizards from three different populations were repeatedly measured for individual activity in group behavioral assays under differing levels of food availability. We found that environmental context had a clear effect on the structure of lizard personality, where activity rates were not repeatable in the absence of food, but were repeatable in the presence of food resources. The difference in repeatability of activity rates across contexts appeared to be largely driven by an increase in among-individual variance when tested in the presence of food resources. However, this was only true for one of the populations tested, with food context having no effect on the expression of personality traits in the other two populations. Our results highlight the important role of environmental context in mediating the structure of animal personality traits and suggest that this effect may vary among populations.
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Affiliation(s)
- Jack A Brand
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Annalise C Naimo
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Marcus Michelangeli
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
- Department of Environmental Science and Policy, University of California, Davis, CA, USA
| | - Jake M Martin
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Andrew Sih
- Department of Environmental Science and Policy, University of California, Davis, CA, USA
| | - Bob B M Wong
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
| | - David G Chapple
- School of Biological Sciences, Monash University, Melbourne, Victoria, Australia
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12
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Kwek BZW, Tan M, Yu L, Zhou W, Chang CC, Li D. Aggressive males are more attractive to females and more likely to win contests in jumping spiders. Anim Behav 2021. [DOI: 10.1016/j.anbehav.2021.06.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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14
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Mauduit E, Lécureuil C, Meunier J. Sublethal exposure to deltamethrin stimulates reproduction and has limited effects on post-hatching maternal care in the European earwig. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:39501-39512. [PMID: 33754270 DOI: 10.1007/s11356-021-13511-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
Although pesticides are typically used to limit pest population, the diversity and nature of their unintentional effects on non-target organisms remain unclear. Better understanding these effects requires to carry out risk assessments on key physiological and behavioral processes specific to beneficial insects. In this study, we addressed this question by exposing mothers of the European earwig (a beneficial insect) to two sublethal doses of deltamethrin (a common pesticide in agriculture) during family life and measured the short- and long-term effects on a series of behavioral, physiological, and reproductive traits. Somewhat surprisingly, our results first revealed that high and low doses of deltamethrin enhanced mothers' future reproduction by augmenting their likelihood to produce a second clutch, shortening the number of days until its production, and increasing the resulting number of eggs and their hatching rate. Conversely, the high dose of deltamethrin was detrimental, as it limited maternal brood defence, and reduced food consumption and expression of self-grooming. Finally, other traits were independent of deltamethrin exposure, such as three proxies of family interactions (i.e., distance to the brood, occurrence, and duration of mother-offspring contacts), mothers' walking distance, and mother weight gain during family life. Our study overall demonstrates that sublethal exposure to a pesticide such as deltamethrin can have both positive and negative effects on non-target beneficial insects. It thus emphasizes that focusing on narrow parameters can lead to misleading conclusions about the unintended impacts of pesticides in treated agro-ecosystems and call for better considering this parameters diversity in integrated pest management programs.
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Affiliation(s)
- Emilie Mauduit
- Institut de Recherche sur la Biologie de l'Insecte, UMR 7261, CNRS, University of Tours, Tours, France
| | - Charlotte Lécureuil
- Institut de Recherche sur la Biologie de l'Insecte, UMR 7261, CNRS, University of Tours, Tours, France.
| | - Joël Meunier
- Institut de Recherche sur la Biologie de l'Insecte, UMR 7261, CNRS, University of Tours, Tours, France.
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15
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Polverino G, Martin JM, Bertram MG, Soman VR, Tan H, Brand JA, Mason RT, Wong BBM. Psychoactive pollution suppresses individual differences in fish behaviour. Proc Biol Sci 2021; 288:20202294. [PMID: 33563120 DOI: 10.1098/rspb.2020.2294] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Environmental contamination by pharmaceuticals is global, substantially altering crucial behaviours in animals and impacting on their reproduction and survival. A key question is whether the consequences of these pollutants extend beyond mean behavioural changes, restraining differences in behaviour between individuals. In a controlled, two-year, multigenerational experiment with independent mesocosm populations, we exposed guppies (Poecilia reticulata) to environmentally realistic levels of the ubiquitous pollutant fluoxetine (Prozac). Fish (unexposed: n = 59, low fluoxetine: n = 57, high fluoxetine: n = 58) were repeatedly assayed on four separate occasions for activity and risk-taking behaviour. Fluoxetine homogenized individuals' activity, with individual variation in populations exposed to even low concentrations falling to less than half that in unexposed populations. To understand the proximate mechanism underlying these changes, we tested the relative contribution of variation within and between individuals to the overall decline in individual variation. We found strong evidence that fluoxetine erodes variation in activity between but not within individuals, revealing the hidden consequences of a ubiquitous contaminant on phenotypic variation in fish-likely to impair adaptive potential to environmental change.
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Affiliation(s)
- Giovanni Polverino
- Centre for Evolutionary Biology, School of Biological Sciences, The University of Western Australia (M092), 35 Stirling Highway, 6009 Perth, WA, Australia
| | - Jake M Martin
- School of Biological Sciences, Monash University, Australia
| | - Michael G Bertram
- School of Biological Sciences, Monash University, Australia.,Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Sweden
| | - Vrishin R Soman
- Centre for Evolutionary Biology, School of Biological Sciences, The University of Western Australia (M092), 35 Stirling Highway, 6009 Perth, WA, Australia.,Department of Mechanical and Aerospace Engineering, New York University Tandon School of Engineering, USA
| | - Hung Tan
- School of Biological Sciences, Monash University, Australia
| | - Jack A Brand
- School of Biological Sciences, Monash University, Australia
| | - Rachel T Mason
- School of Biological Sciences, Monash University, Australia
| | - Bob B M Wong
- School of Biological Sciences, Monash University, Australia
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16
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Tüzün N, Savaşçı BB, Stoks R. Seasonal time constraints shape life history, physiology and behaviour independently, and decouple a behavioural syndrome in a damselfly. OIKOS 2020. [DOI: 10.1111/oik.07800] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nedim Tüzün
- Evolutionary Stress Ecology and Ecotoxicology, Univ. of Leuven Leuven Belgium
| | | | - Robby Stoks
- Evolutionary Stress Ecology and Ecotoxicology, Univ. of Leuven Leuven Belgium
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17
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Kaiser A, Merckx T, Van Dyck H. An experimental test of changed personality in butterflies from anthropogenic landscapes. Behav Ecol Sociobiol 2020. [DOI: 10.1007/s00265-020-02871-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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18
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Michelangeli M, Melki-Wegner B, Laskowski K, Wong BB, Chapple DG. Impacts of caudal autotomy on personality. Anim Behav 2020. [DOI: 10.1016/j.anbehav.2020.02.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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19
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Steele AN, Moore PA. Express yourself: Individuals with bold personalities exhibit increased behavioral sensitivity to dynamic herbicide exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 179:272-281. [PMID: 31059994 DOI: 10.1016/j.ecoenv.2019.04.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/09/2019] [Accepted: 04/23/2019] [Indexed: 06/09/2023]
Abstract
The majority of ecotoxicological studies performed measure average responses from individuals which do not account for the inter-individual variation in the responses of animals to environmental stimuli (i.e. the personality of individuals). Thus, these designs assume that all individuals will respond to contaminant exposure in a similar manner. Additionally, commonly used constant, static exposure regime designs neglect to recognize the spatial and temporal variation in contaminant plume structures as they move throughout fluid environments. The purpose of this study was to understand the effects of the structural characteristics (concentration, duration, and frequency) of temporally and spatially variant contaminant plumes on the personality of individuals. This experimental design aimed to construct a sensitive definition of exposure by connecting sublethal effects of toxicants and realistic exposure regimes. This study used escape response of Faxonius virilis crayfish from the predatory odor of Micropterus salmoides prior to and following exposure to the herbicide, atrazine. Atrazine was delivered in pulses to flow through exposure arenas for a total of 47 h while manipulating the concentration, frequency, and duration of the herbicide pulses. Escape response of crayfish prior to exposure was used to categorize animals into bold and shy personalities. The change in escape response was analyzed and resulted in a personality-dependent behavioral sensitivity to the polluted environment. Individuals classified as bold showed increased change in response to predatory odor relative to shy animals. Bold animals exhibited decreased activity after exposure where no change was presented in shy individuals. Shifts in individual behavior have impacts on the population level (e.g. resource acquisition/value; interspecies competition) and the ecosystem level (e.g. food web dynamics; trophic cascades). This study demonstrates the importance of sensitive measures in ecological risk assessment methods.
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Affiliation(s)
- Alexandra N Steele
- Laboratory for Sensory Ecology, Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, 43403, USA; University of Michigan Biological Station, Pellston, MI, 49769, USA
| | - Paul A Moore
- Laboratory for Sensory Ecology, Department of Biological Sciences, Bowling Green State University, Bowling Green, OH, 43403, USA; University of Michigan Biological Station, Pellston, MI, 49769, USA; J.P. Scott Center for Neuroscience, Mind and Behavior, Bowling Green State University, Bowling Green, OH, 43403, USA.
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20
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Niemelä PT, Niehoff PP, Gasparini C, Dingemanse NJ, Tuni C. Crickets become behaviourally more stable when raised under higher temperatures. Behav Ecol Sociobiol 2019. [DOI: 10.1007/s00265-019-2689-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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21
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Müller T, Römer CI, Müller C. Parental sublethal insecticide exposure prolongs mating response and decreases reproductive output in offspring. J Appl Ecol 2019. [DOI: 10.1111/1365-2664.13398] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Thorben Müller
- Department of Chemical Ecology Bielefeld University Bielefeld Germany
| | - Clara Isis Römer
- Department of Chemical Ecology Bielefeld University Bielefeld Germany
| | - Caroline Müller
- Department of Chemical Ecology Bielefeld University Bielefeld Germany
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22
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Michalko R, Košulič O, Pung T, Vichitbandha P. Behavioral predictability in a lynx spider is interactively influenced by mean behavior, prey density, and an insecticide. Curr Zool 2018; 64:713-720. [PMID: 30538730 PMCID: PMC6280104 DOI: 10.1093/cz/zox075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 11/25/2017] [Indexed: 11/25/2022] Open
Abstract
Behavioral predictability, i.e., short-term intra-individual variability under relatively constant environmental conditions, has only recently begun to gain attention. It is unknown, however, whether predictability of individuals with distinct mean behavior changes differently as a response to ecological factors such as resource availability. Moreover, the response might be affected by anthropogenic contaminants that are ubiquitous in the environment and that can affect animals' variability in behavior. Here, we investigated the relationship between mean predatory activity and predictability in predatory activity along a prey density gradient in the lynx spider Oxyopes lineatipes. We further examined how this relationship is influenced by insecticides, azadirachtin, and a plant extract from Embelia ribes. We found that all studied variables affected the predictability. In the control and Embelia treatments, that did not differ significantly, the predictability decreased with increasing prey density in a mean behavior-specific way. Individuals with low mean predatory activity were relatively less predictable than were those with high activity from low to moderate prey densities but more predictable at high prey densities. Azadirachtin altered this pattern and the individuals with low predatory activity were less predictable than were those with high predatory activity along the whole gradient of prey density. Our results show that predictability can change along an environmental gradient depending on a mean behavior. The relative predictability of the individuals with distinct mean behavior can depend on the value of the environmental gradient. In addition, this relationship can be affected by anthropogenic contaminants such as pesticides.
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Affiliation(s)
- Radek Michalko
- Department of Forest Ecology, Mendel University in Brno, Zemědělská 3, Brno, Czech Republic
| | - Ondřej Košulič
- Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 3, Brno, Czech Republic
| | - Thitiya Pung
- Department of Chemistry, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, Thailand
| | - Patchanee Vichitbandha
- Department of Science, Faculty of Liberal Arts and Science, Kasetsart University, Kamphaeng Saen, Nakhon Pathom, Thailand
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23
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Debecker S, Stoks R. Pace of life syndrome under warming and pollution: integrating life history, behavior, and physiology across latitudes. ECOL MONOGR 2018. [DOI: 10.1002/ecm.1332] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sara Debecker
- Evolutionary Stress Ecology and Ecotoxicology; KU Leuven (University of Leuven); Charles Deberiotstraat 32 3000 Leuven Belgium
| | - Robby Stoks
- Evolutionary Stress Ecology and Ecotoxicology; KU Leuven (University of Leuven); Charles Deberiotstraat 32 3000 Leuven Belgium
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24
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Saaristo M, Brodin T, Balshine S, Bertram MG, Brooks BW, Ehlman SM, McCallum ES, Sih A, Sundin J, Wong BBM, Arnold KE. Direct and indirect effects of chemical contaminants on the behaviour, ecology and evolution of wildlife. Proc Biol Sci 2018; 285:rspb.2018.1297. [PMID: 30135169 DOI: 10.1098/rspb.2018.1297] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 07/25/2018] [Indexed: 02/06/2023] Open
Abstract
Chemical contaminants (e.g. metals, pesticides, pharmaceuticals) are changing ecosystems via effects on wildlife. Indeed, recent work explicitly performed under environmentally realistic conditions reveals that chemical contaminants can have both direct and indirect effects at multiple levels of organization by influencing animal behaviour. Altered behaviour reflects multiple physiological changes and links individual- to population-level processes, thereby representing a sensitive tool for holistically assessing impacts of environmentally relevant contaminant concentrations. Here, we show that even if direct effects of contaminants on behavioural responses are reasonably well documented, there are significant knowledge gaps in understanding both the plasticity (i.e. individual variation) and evolution of contaminant-induced behavioural changes. We explore implications of multi-level processes by developing a conceptual framework that integrates direct and indirect effects on behaviour under environmentally realistic contexts. Our framework illustrates how sublethal behavioural effects of contaminants can be both negative and positive, varying dynamically within the same individuals and populations. This is because linkages within communities will act indirectly to alter and even magnify contaminant-induced effects. Given the increasing pressure on wildlife and ecosystems from chemical pollution, we argue there is a need to incorporate existing knowledge in ecology and evolution to improve ecological hazard and risk assessments.
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Affiliation(s)
- Minna Saaristo
- School of Biological Sciences, Monash University, Melbourne, Australia
| | - Tomas Brodin
- Department of Ecology and Environmental Science, Umeå University, Sweden.,Department of Wildlife, Fish, and Environmental Studies, SLU, Umeå, Sweden
| | - Sigal Balshine
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Ontario, Canada
| | - Michael G Bertram
- School of Biological Sciences, Monash University, Melbourne, Australia
| | - Bryan W Brooks
- Department of Environmental Science, Baylor University, TX, USA
| | - Sean M Ehlman
- Department of Environmental Science and Policy, University of California, Davis, CA, USA
| | - Erin S McCallum
- Department of Ecology and Environmental Science, Umeå University, Sweden
| | - Andrew Sih
- Department of Environmental Science and Policy, University of California, Davis, CA, USA
| | | | - Bob B M Wong
- School of Biological Sciences, Monash University, Melbourne, Australia
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25
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Guenther A, Groothuis AGG, Krüger O, Goerlich-Jansson VC. Cortisol during adolescence organises personality traits and behavioural syndromes. Horm Behav 2018; 103:129-139. [PMID: 29953885 DOI: 10.1016/j.yhbeh.2018.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 06/22/2018] [Accepted: 06/23/2018] [Indexed: 12/16/2022]
Abstract
Despite the growing evidence for the importance of developmental experiences shaping consistent individual differences in behaviour and physiology, the role of endocrine factors underlying the development and maintenance of such differences across multiple traits, remains poorly understood. Here, we investigated how an experimental manipulation of circulating glucocorticoids during early adolescence affects behavioural and physiological variation and covariation later in life in the precocial cavy (Cavia aperea). Plasma cortisol concentrations were experimentally elevated by administering cortisol via food for 3 weeks. Struggle docility, escape latency, boldness, exploration and social behaviour were then tested three times after individuals attained sexual maturity. In addition, blood samples were taken repeatedly to monitor circulating cortisol concentrations. Exogenous cortisol affected mean trait expression of plasma cortisol levels, struggle docility and escape latency. Repeatability of cortisol and escape latency was increased and repeatability of struggle docility tended to be higher (approaching significance) in treated individuals. Increased repeatability was mainly caused by an increase of among-individual variance. Correlations among docility, escape latency and cortisol were stronger in treated animals compared to control animals. These results suggest that exposure to elevated levels of cortisol during adolescence can alter animal personality traits as well as behavioural syndromes. Social and risk-taking traits showed no correlation with cortisol levels and were unaffected by the experimental manipulation, indicating behavioural modularity. Taken together, our data highlight that cortisol can have organising effects during adolescence on the development of personality traits and behavioural syndromes, adding to the increasing evidence that not only early life but also adolescence is an important sensitive period for behavioural development.
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Affiliation(s)
- A Guenther
- Department of Animal Behaviour, Bielefeld University, Germany; GELIFES - Groningen Institute for Evolutionary Life Sciences, University of Groningen, the Netherlands.
| | - A G G Groothuis
- GELIFES - Groningen Institute for Evolutionary Life Sciences, University of Groningen, the Netherlands
| | - O Krüger
- Department of Animal Behaviour, Bielefeld University, Germany
| | - V C Goerlich-Jansson
- Department of Animals in Science and Society, Utrecht University, Yalelaan 2, 3508, TD, Utrecht, the Netherlands.
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26
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Royauté R, Berdal MA, Garrison CR, Dochtermann NA. Paceless life? A meta-analysis of the pace-of-life syndrome hypothesis. Behav Ecol Sociobiol 2018. [DOI: 10.1007/s00265-018-2472-z] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Tüzün N, Müller S, Koch K, Stoks R. Pesticide-induced changes in personality depend on the urbanization level. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2017.10.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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28
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Lane SM, Briffa M. Boldness is for rookies: prefight boldness and fighting success in a sea anemone. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2017.07.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Hamilton JA, Royauté R, Wright JW, Hodgskiss P, Ledig FT. Genetic conservation and management of the California endemic, Torrey pine ( Pinus torreyana Parry): Implications of genetic rescue in a genetically depauperate species. Ecol Evol 2017; 7:7370-7381. [PMID: 28944023 PMCID: PMC5606898 DOI: 10.1002/ece3.3306] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 06/04/2017] [Accepted: 07/13/2017] [Indexed: 01/15/2023] Open
Abstract
Rare species present a challenge under changing environmental conditions as the genetic consequences of rarity may limit species ability to adapt to environmental change. To evaluate the evolutionary potential of a rare species, we assessed variation in traits important to plant fitness using multigenerational common garden experiments. Torrey pine, Pinus torreyana Parry, is one of the rarest pines in the world, restricted to one mainland and one island population. Morphological differentiation between island and mainland populations suggests adaptation to local environments may have contributed to trait variation. The distribution of phenotypic variances within the common garden suggests distinct population-specific growth trajectories underlay genetic differences, with the island population exhibiting substantially reduced genetic variance for growth relative to the mainland population. Furthermore, F1 hybrids, representing a cross between mainland and island trees, exhibit increased height accumulation and fecundity relative to mainland and island parents. This may indicate genetic rescue via intraspecific hybridization could provide the necessary genetic variation to persist in environments modified as a result of climate change. Long-term common garden experiments, such as these, provide invaluable resources to assess the distribution of genetic variance that may inform conservation strategies to preserve evolutionary potential of rare species, including genetic rescue.
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Affiliation(s)
- Jill A. Hamilton
- Department of Biological SciencesNorth Dakota State UniversityFargoNDUSA
| | - Raphaël Royauté
- Department of Biological SciencesNorth Dakota State UniversityFargoNDUSA
| | | | - Paul Hodgskiss
- Pacific Southwest Research StationUSDA‐Forest ServiceDavisCAUSA
| | - F. Thomas Ledig
- Department of Plant ScienceUniversity of CaliforniaDavisCAUSA
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30
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Benamú M, Lacava M, García LF, Santana M, Fang J, Wang X, Blamires SJ. Nanostructural and mechanical property changes to spider silk as a consequence of insecticide exposure. CHEMOSPHERE 2017; 181:241-249. [PMID: 28445817 DOI: 10.1016/j.chemosphere.2017.04.079] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/27/2017] [Accepted: 04/17/2017] [Indexed: 06/07/2023]
Abstract
Neonicotinoids are one of the world's most extensively used insecticides, but their sub-lethal influences on non-target and beneficial organisms are not well known. Here we exposed the orb web spider Parawixia audax, which is found on arable lands in Uruguay, to a sub-lethal concentration of the broad spectrum insecticide Geonex (thiamethoxam + lambda-cyhalothrin) and monitored their web building. We collected their major ampullate silk and subjected it to tensile tests, wide-angle X-ray diffraction (WAXS) analysis, and amino acid composition analysis. Around half of the exposed spiders failed to build webs. Those that built webs produced irregular webs lacking spiral threads. The mechanical properties, nanostructures, and amino acid compositions of the silk were all significantly affected when the spiders were exposed to insecticides. We found that silk proline, glutamine, alanine and glycine compositions differed between treatments, indicating that insecticide exposure induced downregulation of the silk protein MaSp2. The spiders in the control group had stronger, tougher and more extensible silks than those in the insecticide exposed group. Our WAXS analyses showed the amorphous region nanostructures became misaligned in insecticide exposed silks, explaining their greater stiffness. While the insecticide dose we subjected P. audax to was evidently sub-lethal, the changes in silk physicochemical properties and the impairment to web building will indelibly affect their ability to catch prey.
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Affiliation(s)
- Marco Benamú
- Centro Universitario de Rivera (Universidad de la República), Rivera, Uruguay; Laboratorio Ecología del Comportamiento (Instituto de Investigaciones Biológicas Clemente Estable), Montevideo, Uruguay
| | - Mariángeles Lacava
- Centro Universitario de Rivera (Universidad de la República), Rivera, Uruguay; Laboratorio Ecología del Comportamiento (Instituto de Investigaciones Biológicas Clemente Estable), Montevideo, Uruguay
| | - Luis F García
- Centro Universitario Regional del Este (Universidad de la República) Treinta y Tres, Uruguay
| | - Martín Santana
- Laboratorio Ecología del Comportamiento (Instituto de Investigaciones Biológicas Clemente Estable), Montevideo, Uruguay
| | - Jian Fang
- Institute for Frontier Materials (IFM), Deakin University, Waurn Ponds Campus, Geelong, Vic 3220, Australia
| | - Xungai Wang
- Institute for Frontier Materials (IFM), Deakin University, Waurn Ponds Campus, Geelong, Vic 3220, Australia
| | - Sean J Blamires
- Evolution & Ecology Research Centre, School of Biological, Earth & Environmental Sciences, The University of New South Wales, Sydney NSW 2052, Australia.
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31
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Kralj-Fišer S, Hebets EA, Kuntner M. Different patterns of behavioral variation across and within species of spiders with differing degrees of urbanization. Behav Ecol Sociobiol 2017. [DOI: 10.1007/s00265-017-2353-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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32
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Prokop P, Semelbauer M. Biometrical and behavioural associations with offering nuptial gifts by males in the spider Pisaura mirabilis. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2017.05.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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33
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Brommer JE, Class B. Phenotypic correlations capture between-individual correlations underlying behavioral syndromes. Behav Ecol Sociobiol 2017. [DOI: 10.1007/s00265-017-2278-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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34
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Osborn A, Briffa M. Does repeatable behaviour in the laboratory represent behaviour under natural conditions? A formal comparison in sea anemones. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2016.10.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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Royauté R, Dochtermann NA. When the mean no longer matters: developmental diet affects behavioral variation but not population averages in the house cricket (Acheta domesticus). Behav Ecol 2016. [DOI: 10.1093/beheco/arw164] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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36
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White SJ, Briffa M. How do anthropogenic contaminants (ACs) affect behaviour? Multi-level analysis of the effects of copper on boldness in hermit crabs. Oecologia 2016; 183:391-400. [DOI: 10.1007/s00442-016-3777-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 11/12/2016] [Indexed: 10/20/2022]
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37
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Niedobová J, Hula V, Michalko R. Sublethal effect of agronomical surfactants on the spider Pardosa agrestis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 213:84-89. [PMID: 26878602 DOI: 10.1016/j.envpol.2016.02.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
In addition to their active ingredients, pesticides contain also additives - surfactants. Use of surfactants has been increasing over the past decade, but their effects on non-target organisms, especially natural enemies of pests, have been studied only very rarely. The effect of three common agrochemical surfactants on the foraging behavior of the wolf spider Pardosa agrestis was studied in the laboratory. Differences in short-term, long-term, and overall cumulative predatory activities were investigated. We found that surfactant treatment significantly affected short-term predatory activity but had no effect on long-term predatory activity. The surfactants also significantly influenced the cumulative number of killed prey. We also found the sex-specific increase in cumulative kills after surfactants treatment. This is the first study showing that pesticide additives have a sublethal effect that can weaken the predatory activity of a potential biological control agent. More studies on the effects of surfactants are needed to understand how they affect beneficial organisms in agroecosystems.
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Affiliation(s)
- Jana Niedobová
- Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of Agronomy, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic.
| | - Vladimír Hula
- Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of Agronomy, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic
| | - Radek Michalko
- Department of Forest Ecology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic; Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Kotlářská 2, 611 37, Brno, Czech Republic
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38
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Santostefano F, Wilson AJ, Araya-Ajoy YG, Dingemanse NJ. Interacting with the enemy: indirect effects of personality on conspecific aggression in crickets. Behav Ecol 2016. [DOI: 10.1093/beheco/arw037] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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39
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Debecker S, Sanmartín‐Villar I, Guinea‐Luengo M, Cordero‐Rivera A, Stoks R. Integrating the pace‐of‐life syndrome across species, sexes and individuals: covariation of life history and personality under pesticide exposure. J Anim Ecol 2016; 85:726-38. [DOI: 10.1111/1365-2656.12499] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 01/25/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Sara Debecker
- Laboratory of Aquatic Ecology, Evolution and Conservation University of Leuven Charles Deberiotstraat 32, bus 2439 3000 Leuven Belgium
| | - Iago Sanmartín‐Villar
- Laboratory of Aquatic Ecology, Evolution and Conservation University of Leuven Charles Deberiotstraat 32, bus 2439 3000 Leuven Belgium
- Grupo ECOEVO Escola de Enxeñaría Forestal Universidade de Vigo Campus A Xunqueira s/n 36005 Pontevedra Galiza Spain
| | - Miguel Guinea‐Luengo
- Laboratory of Aquatic Ecology, Evolution and Conservation University of Leuven Charles Deberiotstraat 32, bus 2439 3000 Leuven Belgium
| | - Adolfo Cordero‐Rivera
- Grupo ECOEVO Escola de Enxeñaría Forestal Universidade de Vigo Campus A Xunqueira s/n 36005 Pontevedra Galiza Spain
| | - Robby Stoks
- Laboratory of Aquatic Ecology, Evolution and Conservation University of Leuven Charles Deberiotstraat 32, bus 2439 3000 Leuven Belgium
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Royauté R, Buddle CM, Vincent C. Under the influence: sublethal exposure to an insecticide affects personality expression in a jumping spider. Funct Ecol 2015. [DOI: 10.1111/1365-2435.12413] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Raphaël Royauté
- Department of Natural Resource Sciences McGill University Macdonald Campus Ste‐Anne‐de‐Bellevue QC H9X 3V9 Canada
- Horticultural Research and Development Centre Agriculture and Agri‐Food Canada Saint‐Jean‐sur‐Richelieu QCJ3B 3E6 Canada
| | - Christopher M. Buddle
- Department of Natural Resource Sciences McGill University Macdonald Campus Ste‐Anne‐de‐Bellevue QC H9X 3V9 Canada
| | - Charles Vincent
- Horticultural Research and Development Centre Agriculture and Agri‐Food Canada Saint‐Jean‐sur‐Richelieu QCJ3B 3E6 Canada
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