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Gastélum-Reyes JJ, Peñalba-Garmendia MC, Fu-Castillo A, Navarro-Gómez N, Castillo-Gámez RA, Meling-López AE. FOREIGN SPIDERS AND INSECTS IN ANELOSIMUS CF. ANALYTICUS (ARANEAE: THERIDIIDAE) NESTS IN THE SONORAN DESERT, MEXICO. SOUTHWEST NAT 2022. [DOI: 10.1894/0038-4909-66.3.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Julio Javier Gastélum-Reyes
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
| | | | - Agustín Fu-Castillo
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
| | - Narciso Navarro-Gómez
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
| | - Reyna Amanda Castillo-Gámez
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
| | - Alf Enrique Meling-López
- Departamento de Investigación Científica y Tecnológica de la Universidad de Sonora, Hermosillo, Sonora C.P. 83000, Mexico
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2
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Vágási CI, Fülöp A, Osváth G, Pap PL, Pénzes J, Benkő Z, Lendvai ÁZ, Barta Z. Social groups with diverse personalities mitigate physiological stress in a songbird. Proc Biol Sci 2021; 288:20203092. [PMID: 33499787 PMCID: PMC7893263 DOI: 10.1098/rspb.2020.3092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 01/08/2021] [Indexed: 12/21/2022] Open
Abstract
Social groups often consist of diverse phenotypes, including personality types, and this diversity is known to affect the functioning of the group as a whole. Social selection theory proposes that group composition (i.e. social environment) also influences the performance of individual group members. However, the effect of group behavioural composition on group members remains largely unexplored, and it is still contentious whether individuals benefit more in a social environment with homogeneous or diverse behavioural composition. We experimentally formed groups of house sparrows Passer domesticus with high and low diversity of personality (exploratory behaviour), and found that their physiological state (body condition, physiological stress and oxidative damage) improved with increasing group-level diversity of personality. These findings demonstrate that group personality composition affects the condition of group members and individuals benefit from social heterosis (i.e. associating with a diverse set of behavioural types). This aspect of the social life can play a key role in affiliation rules of social animals and might explain the evolutionary coexistence of different personalities in nature.
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Affiliation(s)
- Csongor I. Vágási
- Evolutionary Ecology Group, Hungarian Department of Biology and Ecology, Babeș-Bolyai University, Cluj-Napoca, Romania
- Department of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary
| | - Attila Fülöp
- MTA-DE Behavioural Ecology Research Group, Department of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary
- Juhász-Nagy Pál Doctoral School, University of Debrecen, Debrecen, Hungary
| | - Gergely Osváth
- Evolutionary Ecology Group, Hungarian Department of Biology and Ecology, Babeș-Bolyai University, Cluj-Napoca, Romania
- Museum of Zoology, Babeș-Bolyai University, Cluj-Napoca, Romania
- Department of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary
| | - Péter L. Pap
- Evolutionary Ecology Group, Hungarian Department of Biology and Ecology, Babeș-Bolyai University, Cluj-Napoca, Romania
- Department of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary
| | - Janka Pénzes
- Evolutionary Ecology Group, Hungarian Department of Biology and Ecology, Babeș-Bolyai University, Cluj-Napoca, Romania
| | - Zoltán Benkő
- Evolutionary Ecology Group, Hungarian Department of Biology and Ecology, Babeș-Bolyai University, Cluj-Napoca, Romania
- Romanian Ornithological Society/BirdLife Romania, Cluj-Napoca, Romania
| | - Ádám Z. Lendvai
- Department of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary
| | - Zoltán Barta
- MTA-DE Behavioural Ecology Research Group, Department of Evolutionary Zoology, University of Debrecen, Debrecen, Hungary
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3
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Jolles JW, King AJ, Killen SS. The Role of Individual Heterogeneity in Collective Animal Behaviour. Trends Ecol Evol 2020; 35:278-291. [DOI: 10.1016/j.tree.2019.11.001] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 11/04/2019] [Accepted: 11/08/2019] [Indexed: 01/09/2023]
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4
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Jones C, Pollack L, DiRienzo N. Game of webs: species and web structure influence contest outcome in black widow spiders. Behav Ecol 2019. [DOI: 10.1093/beheco/arz153] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AbstractPopulation-level trait variation within species plays an often-overlooked role in interspecific interactions. In this study, we compared among-individual variation in web phenotype and foraging behavior between native black widows (Latrodectus hesperus) and invasive brown widows (Latrodectus geometricus). We staged repeated contests whereby native widows defended their webs against intruders of both species to 1) investigate how trait variation mediates web contest outcome among native widows and 2) see whether widow behavior differs in response to an invasive spider. In only one trait, the average number of foraging lines, did black widows differ from brown widows. Black widow residents that built more structural lines were more likely to successfully defend their webs from conspecific intruders (i.e., be the sole spider remaining on the web postinteraction). This association between web structure and contest outcome did not exist in trials between black widows and invasive brown widows; however, in interspecific interactions, these same residents were more likely to have intruders remain on the web rather than drive them away. Surprisingly, brown widows did not usurp black widows. Brown widows were never observed signaling, yet black widow residents signaled equally to intruders of both species. Our results suggest that among-individual variation among native species can influence the response toward invasive competitors and outcome of these interactions.
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Affiliation(s)
- Cameron Jones
- Department of Environmental Science and Policy, University of California, Davis, Davis, CA, USA
| | - Lea Pollack
- Department of Environmental Science and Policy, University of California, Davis, Davis, CA, USA
| | - Nicholas DiRienzo
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
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5
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The survival of the shyest: a computational model shows the effect of web structure on the origins of social spiders. Anim Behav 2019. [DOI: 10.1016/j.anbehav.2019.05.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Little AG, Fisher DN, Schoener TW, Pruitt JN. Population differences in aggression are shaped by tropical cyclone-induced selection. Nat Ecol Evol 2019; 3:1294-1297. [PMID: 31427730 DOI: 10.1038/s41559-019-0951-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/21/2019] [Indexed: 11/09/2022]
Abstract
Extreme events, such as tropical cyclones, are destructive and influential forces. However, observing and recording the ecological effects of these statistically improbable, yet profound 'black swan' weather events is logistically difficult. By anticipating the trajectory of tropical cyclones, and sampling populations before and after they make landfall, we show that these extreme events select for more aggressive colony phenotypes in the group-living spider Anelosimus studiosus. This selection is great enough to drive regional variation in colony phenotypes, despite the fact that tropical cyclone strikes are irregular, occurring only every few years, even in particularly prone regions. These data provide compelling evidence for tropical cyclone-induced selection driving the evolution of an important functional trait and show that black swan events contribute to within-species diversity and local adaptation.
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Affiliation(s)
- Alexander G Little
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, USA.,Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - David N Fisher
- Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario, Canada
| | - Thomas W Schoener
- Department of Ecology and Evolutionary Biology, University of California, Davis, Davis, CA, USA
| | - Jonathan N Pruitt
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA, USA. .,Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, Ontario, Canada.
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7
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Wright CM, Lichtenstein JLL, Doering GN, Pretorius J, Meunier J, Pruitt JN. Collective personalities: present knowledge and new frontiers. Behav Ecol Sociobiol 2019. [DOI: 10.1007/s00265-019-2639-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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8
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9
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Ribeiro RF, Gomes FC, Tizo AFS, Tizo-Pedroso E, Del-Claro K. Cooperative foraging in neotropical pseudoscorpions: effects of prey changes on behavioral adjustments of colonies. Acta Ethol 2018. [DOI: 10.1007/s10211-018-0294-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Fernandez-Fournier P, Avilés L. Environmental filtering and dispersal as drivers of metacommunity composition: complex spider webs as habitat patches. Ecosphere 2018. [DOI: 10.1002/ecs2.2101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Philippe Fernandez-Fournier
- Department of Zoology; University of British Columbia; 6270 University Blvd V6T 1Z4 Vancouver British Columbia Canada
| | - Leticia Avilés
- Department of Zoology; University of British Columbia; 6270 University Blvd V6T 1Z4 Vancouver British Columbia Canada
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11
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Junghanns A, Holm C, Schou MF, Sørensen AB, Uhl G, Bilde T. Extreme allomaternal care and unequal task participation by unmated females in a cooperatively breeding spider. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2017.08.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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12
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Pinter-Wollman N, Mi B, Pruitt JN. Replacing bold individuals has a smaller impact on group performance than replacing shy individuals. Behav Ecol 2017. [DOI: 10.1093/beheco/arx054] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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13
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Evans LJ, Smith KE, Raine NE. Fast learning in free-foraging bumble bees is negatively correlated with lifetime resource collection. Sci Rep 2017; 7:496. [PMID: 28356567 PMCID: PMC5428240 DOI: 10.1038/s41598-017-00389-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 01/31/2017] [Indexed: 11/09/2022] Open
Abstract
Despite widespread interest in the potential adaptive value of individual differences in cognition, few studies have attempted to address the question of how variation in learning and memory impacts their performance in natural environments. Using a novel split-colony experimental design we evaluated visual learning performance of foraging naïve bumble bees (Bombus terrestris) in an ecologically relevant associative learning task under controlled laboratory conditions, before monitoring the lifetime foraging performance of the same individual bees in the field. We found appreciable variation among the 85 workers tested in both their learning and foraging performance, which was not predicted by colony membership. However, rather than finding that foragers benefited from enhanced learning performance, we found that fast and slow learners collected food at comparable rates and completed a similar number of foraging bouts per day in the field. Furthermore, bees with better learning abilities foraged for fewer days; suggesting a cost of enhanced learning performance in the wild. As a result, slower learning individuals collected more resources for their colony over the course of their foraging career. These results demonstrate that enhanced cognitive traits are not necessarily beneficial to the foraging performance of individuals or colonies in all environments.
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Affiliation(s)
- Lisa J Evans
- School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK.
- The New Zealand Institute for Plant and Food Research, Hamilton, 3240, New Zealand.
| | - Karen E Smith
- School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
| | - Nigel E Raine
- School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, TW20 0EX, UK
- School of Environmental Sciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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14
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Pruitt JN. Behavioural hypervolumes of spider communities predict community performance and disbandment. Proc Biol Sci 2016; 283:20161409. [PMID: 27974515 PMCID: PMC5204141 DOI: 10.1098/rspb.2016.1409] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 11/09/2016] [Indexed: 11/12/2022] Open
Abstract
Trait-based ecology argues that an understanding of the traits of interactors can enhance the predictability of ecological outcomes. We examine here whether the multidimensional behavioural-trait diversity of communities influences community performance and stability in situ We created experimental communities of web-building spiders, each with an identical species composition. Communities contained one individual of each of five different species. Prior to establishing these communities in the field, we examined three behavioural traits for each individual spider. These behavioural measures allowed us to estimate community-wide behavioural diversity, as inferred by the multidimensional behavioural volume occupied by the entire community. Communities that occupied a larger region of behavioural-trait space (i.e. where spiders differed more from each other behaviourally) gained more mass and were less likely to disband. Thus, there is a community-wide benefit to multidimensional behavioural diversity in this system that might translate to other multispecies assemblages.
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Affiliation(s)
- Jonathan N Pruitt
- Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106-9610, USA
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15
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Ingley SJ, Pruitt JN, Scharf I, Purcell J. Social context, but not individual personality, alters immigrant viability in a spider with mixed social structure. Anim Behav 2016. [DOI: 10.1016/j.anbehav.2016.08.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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16
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Goulet CT, Ingley SJ, Scharf I, Pruitt JN. Thermal effects on survival and reproductive performance vary according to personality type. Behav Ecol 2016. [DOI: 10.1093/beheco/arw084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Biernaskie JM, Foster KR. Ecology and multilevel selection explain aggression in spider colonies. Ecol Lett 2016; 19:873-9. [PMID: 27264438 PMCID: PMC4950442 DOI: 10.1111/ele.12622] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 12/24/2015] [Accepted: 04/28/2016] [Indexed: 12/01/2022]
Abstract
Progress in sociobiology continues to be hindered by abstract debates over methodology and the relative importance of within‐group vs. between‐group selection. We need concrete biological examples to ground discussions in empirical data. Recent work argued that the levels of aggression in social spider colonies are explained by group‐level adaptation. Here, we examine this conclusion using models that incorporate ecological detail while remaining consistent with kin‐ and multilevel selection frameworks. We show that although levels of aggression are driven, in part, by between‐group selection, incorporating universal within‐group competition provides a striking fit to the data that is inconsistent with pure group‐level adaptation. Instead, our analyses suggest that aggression is favoured primarily as a selfish strategy to compete for resources, despite causing lower group foraging efficiency or higher risk of group extinction. We argue that sociobiology will benefit from a pluralistic approach and stronger links between ecologically informed models and data.
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Affiliation(s)
- Jay M Biernaskie
- Department of Plant Sciences, University of Oxford, South Parks Road, Oxford, UK OX1 3RB, UK
| | - Kevin R Foster
- Department of Zoology, University of Oxford, South Parks Road, Oxford, UK OX1 3PS, UK
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18
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Farine DR, Montiglio PO, Spiegel O. From Individuals to Groups and Back: The Evolutionary Implications of Group Phenotypic Composition. Trends Ecol Evol 2015; 30:609-621. [PMID: 26411618 PMCID: PMC4594155 DOI: 10.1016/j.tree.2015.07.005] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/10/2015] [Accepted: 07/14/2015] [Indexed: 11/23/2022]
Abstract
There is increasing interest in understanding the processes that maintain phenotypic variation in groups, populations, or communities. Recent studies have investigated how the phenotypic composition of groups or aggregations (e.g., its average phenotype or phenotypic variance) affects ecological and social processes, and how multi-level selection can drive phenotypic covariance among interacting individuals. However, we argue that these questions are rarely studied together. We present a unified framework to address this gap, and discuss how group phenotypic composition (GPC) can impact on processes ranging from individual fitness to population demography. By emphasising the breadth of topics affected, we hope to motivate more integrated empirical studies of the ecological and evolutionary implications of GPC.
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Affiliation(s)
- Damien R Farine
- Department of Anthropology, University of California Davis, Davis, CA, USA; Smithsonian Tropical Research Institute, Panamá, República de Panamá; Edward Grey Institute of Field Ornithology, University of Oxford, Oxford, UK.
| | | | - Orr Spiegel
- Department of Environmental Science and Policy, University of California Davis, Davis, CA, USA.
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19
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Pruitt JN, Modlmeier AP. Animal personality in a foundation species drives community divergence and collapse in the wild. J Anim Ecol 2015; 84:1461-8. [DOI: 10.1111/1365-2656.12406] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 05/29/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Jonathan N. Pruitt
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh PA 15260 USA
| | - Andreas P. Modlmeier
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh PA 15260 USA
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20
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Lichtenstein JLL, Pruitt JN. Similar patterns of frequency-dependent selection on animal personalities emerge in three species of social spiders. J Evol Biol 2015; 28:1248-56. [DOI: 10.1111/jeb.12651] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 04/28/2015] [Indexed: 01/24/2023]
Affiliation(s)
| | - J. N. Pruitt
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh PA USA
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21
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22
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Long-term behavioural consistency in prey capture but not in web maintenance in a social spider. Behav Ecol Sociobiol 2015. [DOI: 10.1007/s00265-015-1915-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Planas-Sitjà I, Deneubourg JL, Gibon C, Sempo G. Group personality during collective decision-making: a multi-level approach. Proc Biol Sci 2015; 282:20142515. [PMID: 25652834 PMCID: PMC4344149 DOI: 10.1098/rspb.2014.2515] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 01/07/2015] [Indexed: 12/27/2022] Open
Abstract
Collective decision-making processes emerge from social feedback networks within a group. Many studies on collective behaviour underestimate the role of individual personality and, as a result, personality is rarely analysed in the context of collective dynamics. Here, we show evidence of sheltering behaviour personality in a gregarious insect (Periplaneta americana), which is characterized by a collective personality at the group level. We also highlight that the individuals within groups exhibited consistent personality traits in their probability of sheltering and total time sheltered during the three trials over one week. Moreover, the group personality, which arises from the synergy between the distribution of behaviour profiles in the group and social amplifications, affected the sheltering dynamics. However, owing to its robustness, personality did not affect the group probability of reaching a consensus. Finally, to prove social interactions, we developed a new statistical method that will be helpful for future research on personality traits and group behaviour. This approach will help to identify the circumstances under which particular group compositions may improve the fitness of individuals in gregarious species.
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Affiliation(s)
- Isaac Planas-Sitjà
- Unit of Social Ecology-CP 231, Université libre de Bruxelles (ULB), Campus Plaine, Boulevard du Triomphe, Building NO-level 5, 1050 Bruxelles, Belgium
| | - Jean-Louis Deneubourg
- Unit of Social Ecology-CP 231, Université libre de Bruxelles (ULB), Campus Plaine, Boulevard du Triomphe, Building NO-level 5, 1050 Bruxelles, Belgium
| | - Céline Gibon
- Unit of Social Ecology-CP 231, Université libre de Bruxelles (ULB), Campus Plaine, Boulevard du Triomphe, Building NO-level 5, 1050 Bruxelles, Belgium
| | - Grégory Sempo
- Unit of Social Ecology-CP 231, Université libre de Bruxelles (ULB), Campus Plaine, Boulevard du Triomphe, Building NO-level 5, 1050 Bruxelles, Belgium
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24
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Diel and life-history characteristics of personality: consistency versus flexibility in relation to ecological change. Anim Behav 2015. [DOI: 10.1016/j.anbehav.2014.12.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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25
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Bengston SE, Jandt JM. The development of collective personality: the ontogenetic drivers of behavioral variation across groups. Front Ecol Evol 2014. [DOI: 10.3389/fevo.2014.00081] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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26
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Holbrook CT, Wright CM, Pruitt JN. RETRACTED: Individual differences in personality and behavioural plasticity facilitate division of labour in social spider colonies. Anim Behav 2014. [DOI: 10.1016/j.anbehav.2014.09.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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27
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Modlmeier AP, Forrester NJ, Pruitt JN. Habitat structure helps guide the emergence of colony-level personality in social spiders. Behav Ecol Sociobiol 2014. [DOI: 10.1007/s00265-014-1802-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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28
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Modlmeier AP, Keiser CN, Shearer TA, Pruitt JN. Species-specific influence of group composition on collective behaviors in ants. Behav Ecol Sociobiol 2014. [DOI: 10.1007/s00265-014-1799-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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29
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Grinsted L, Bacon J. Animal Behaviour: Task Differentiation by Personality in Spider Groups. Curr Biol 2014; 24:R749-51. [DOI: 10.1016/j.cub.2014.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Wright CM, Holbrook CT, Pruitt JN. Animal personality aligns task specialization and task proficiency in a spider society. Proc Natl Acad Sci U S A 2014; 111:9533-7. [PMID: 24979771 PMCID: PMC4084461 DOI: 10.1073/pnas.1400850111] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Classic theory on division of labor implicitly assumes that task specialists are more proficient at their jobs than generalists and specialists in other tasks; however, recent data suggest that this might not hold for societies that lack discrete worker polymorphisms, which constitute the vast majority of animal societies. The facultatively social spider Anelosimus studiosus lacks castes, but females exhibit either a "docile" or "aggressive" phenotype. Here we observed the propensity of individual females of either phenotype to perform various tasks (i.e., prey capture, web building, parental care, and colony defense) in mixed-phenotype colonies. We then measured the performance outcomes of singleton individuals of either phenotype at each task to determine their proficiencies. Aggressive females participated more in prey capture, web building, and colony defense, whereas docile females engaged more in parental care. In staged trials, aggressive individuals were more effective at capturing prey, constructing webs, and defending the colony, whereas docile females were more effective at rearing large quantities of brood. Thus, individuals' propensity to perform tasks and their task proficiencies appear to be adaptively aligned in this system. Moreover, because the docile/aggressive phenotypes are heritable, these data suggest that within-colony variation is maintained because of advantages gleaned by division of labor.
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Affiliation(s)
- Colin M Wright
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260; and
| | - C Tate Holbrook
- Department of Natural Sciences, College of Coastal Georgia, Brunswick, GA 31520
| | - Jonathan N Pruitt
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260; and
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Pruitt JN, Keiser CN. The personality types of key catalytic individuals shape colonies' collective behaviour and success. Anim Behav 2014; 93:87-95. [PMID: 32287335 PMCID: PMC7119443 DOI: 10.1016/j.anbehav.2014.04.017] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/10/2014] [Accepted: 04/02/2014] [Indexed: 11/28/2022]
Abstract
Behavioural ecologists often note that one or a few group members appear to shape the collective behaviour of social groups differentially. Our understanding of these keystone individuals is largely taken from meticulous field observations and semi-scientific anecdotes. In this study we experimentally test whether the behavioural tendencies of putative keystone individuals shift the collective behaviour of colonies using the social spider Stegodyphus dumicola. Prior studies on Stegodyphus demonstrated that the single best predictor of colonies' collective behaviour is the behaviour of colonies' boldest individual. Here, we probe the causal relationship between the traits of extremely bold individuals and colonies' collective behaviour by experimentally creating colonies of identical size and personality composition in the laboratory and then adding a single individual of varying boldness (the putative keystone individual). Experimentally adding just one extremely bold individual increased the foraging aggressiveness of entire colonies and altered the total mass gained by fellow group members, relative to the addition of a less bold individual. Additionally, our data suggest that bold individuals are capable of such influence because they catalyse variation in the behavioural tendencies of fellow group members.
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Affiliation(s)
- Jonathan N Pruitt
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, U.S.A
| | - Carl N Keiser
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, U.S.A
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Keiser CN, Modlmeier AP, Singh N, Jones DK, Pruitt JN. Exploring How a Shift in the Physical Environment Shapes Individual and Group Behavior across Two Social Contexts. Ethology 2014. [DOI: 10.1111/eth.12256] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Carl N. Keiser
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh PA USA
| | | | - Nishant Singh
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh PA USA
| | - Devin K. Jones
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh PA USA
| | - Jonathan N. Pruitt
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh PA USA
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Exploring the effects of individual traits and within-colony variation on task differentiation and collective behavior in a desert social spider. Behav Ecol Sociobiol 2014. [DOI: 10.1007/s00265-014-1696-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Keiser CN, Pruitt JN. Spider aggressiveness determines the bidirectional consequences of host-inquiline interactions. Behav Ecol 2013. [DOI: 10.1093/beheco/art096] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kasumovic MM, Jordan LA. Social Factors Driving Settlement and Relocation Decisions in a Solitary and Aggregative Spider. Am Nat 2013; 182:532-41. [DOI: 10.1086/671930] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Grinsted L, Pruitt JN, Settepani V, Bilde T. Individual personalities shape task differentiation in a social spider. Proc Biol Sci 2013; 280:20131407. [PMID: 23902907 PMCID: PMC3735259 DOI: 10.1098/rspb.2013.1407] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Accepted: 07/08/2013] [Indexed: 11/12/2022] Open
Abstract
Deciphering the mechanisms involved in shaping social structure is key to a deeper understanding of the evolutionary processes leading to sociality. Individual specialization within groups can increase colony efficiency and consequently productivity. Here, we test the hypothesis that within-group variation in individual personalities (i.e. boldness and aggression) can shape task differentiation. The social spider Stegodyphus sarasinorum (Eresidae) showed task differentiation (significant unequal participation) in simulated prey capture events across 10-day behavioural assays in the field, independent of developmental stage (level of maturation), eliminating age polyethism. Participation in prey capture was positively associated with level of boldness but not with aggression. Body size positively correlated with being the first spider to emerge from the colony as a response to prey capture but not with being the first to attack, and dispersal distance from experimental colonies correlated with attacking but not with emerging. This suggests that different behavioural responses to prey capture result from a complex set of individual characteristics. Boldness and aggression correlated positively, but neither was associated with body size, developmental stage or dispersal distance. Hence, we show that personalities shape task differentiation in a social spider independent of age and maturation. Our results suggest that personality measures obtained in solitary, standardized laboratory settings can be reliable predictors of behaviour in a social context in the field. Given the wealth of organisms that show consistent individual behavioural differences, animal personality could play a role in social organization in a diversity of animals.
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Affiliation(s)
- Lena Grinsted
- Department of Bioscience, Aarhus University, Ny Munkegade 116, Building 1540, 8000 Aarhus C, Denmark.
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Pruitt JN. A real-time eco-evolutionary dead-end strategy is mediated by the traits of lineage progenitors and interactions with colony invaders. Ecol Lett 2013; 16:879-86. [DOI: 10.1111/ele.12123] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/10/2013] [Accepted: 04/10/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan N. Pruitt
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh; Pennsylvania; 15260; USA
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Fortune favours the aggressive: territory quality and behavioural syndromes in song sparrows, Melospiza melodia. Anim Behav 2013. [DOI: 10.1016/j.anbehav.2012.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Pruitt JN, Oufiero CE, Avilés L, Riechert SE. Iterative evolution of increased behavioral variation characterizes the transition to sociality in spiders and proves advantageous. Am Nat 2012; 180:496-510. [PMID: 22976012 DOI: 10.1086/667576] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The evolution of group living is regarded as a major evolutionary transition and is commonly met with correlated shifts in ancillary characters. We tested for associations between social tendency and a myriad of abiotic variables (e.g., temperature and precipitation) and behavioral traits (e.g., boldness, activity level, and aggression) in a clade of spiders that exhibit highly variable social structures (genus Anelosimus). We found that, relative to their subsocial relatives, social species tended to exhibit reduced aggressiveness toward prey, increased fearfulness toward predators, and reduced activity levels, and they tended to occur in warm, wet habitats with low average wind velocities. Within-species variation in aggressiveness and boldness was also positively associated with sociality. We then assessed the functional consequences of within-species trait variation on reconstituted colonies of four test species (Anelosimus eximius, Anelosimus rupununi, Anelosimus guacamayos, and Anelosimus oritoyacu). We used colonies consisting of known ratios of docile versus aggressive individuals and group foraging success as a measure of colony performance. In all four test species, we found that groups composed of a mixture of docile and aggressive individuals outperformed monotypic groups. Mixed groups were more effective at subduing medium and large prey, and mixed groups collectively gained more mass during shared feeding events. Our results suggest that the iterative evolution of depressed aggressiveness and increased within-species behavioral variation in social spiders is advantageous and could be an adaptation to group living that is analogous to the formation of morphological castes within the social insects.
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Affiliation(s)
- Jonathan N Pruitt
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
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Pruitt JN. Behavioural traits of colony founders affect the life history of their colonies. Ecol Lett 2012; 15:1026-32. [DOI: 10.1111/j.1461-0248.2012.01825.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 04/17/2012] [Accepted: 05/24/2012] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan N. Pruitt
- Department of Biological Sciences; University of Pittsburgh; Pittsburgh; Pennsylvania; 15260; USA
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Affiliation(s)
- Andrew Sih
- Department of Environmental Science and Policy, University of California at Davis, CA 95616, USA.
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Pruitt JN, Iturralde G, Avilés L, Riechert SE. Amazonian social spiders share similar within-colony behavioural variation and behavioural syndromes. Anim Behav 2011. [DOI: 10.1016/j.anbehav.2011.09.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pruitt JN, Cote J, Ferrari MCO. Behavioural trait variants in a habitat-forming species dictate the nature of its interactions with and among heterospecifics. Funct Ecol 2011. [DOI: 10.1111/j.1365-2435.2011.01922.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pruitt JN, Ferrari MCO. Intraspecific trait variants determine the nature of interspecific interactions in a habitat-forming species. Ecology 2011; 92:1902-8. [DOI: 10.1890/11-0701.1] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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