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Boucher RD, Wittig RM, Lemoine SRT, Maro A, Wang X, Koch PL, Oelze VM. Strontium isotopes track female dispersal in Taï chimpanzees. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2024:e24981. [PMID: 38828504 DOI: 10.1002/ajpa.24981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 04/08/2024] [Accepted: 05/14/2024] [Indexed: 06/05/2024]
Abstract
OBJECTIVES Chimpanzees (Pan troglodytes) are patrilocal, with males remaining in their natal community and females dispersing when they reach sexual maturity. However, the details of female chimpanzee dispersal, such as their possible origin, are difficult to assess, even in habituated communities. This study investigates the utility of 87Sr/86Sr analysis for (1) assessing Sr baseline differences between chimpanzee territories and (2) identifying the status (immigrant or natal) of females of unknown origin within the territories of five neighboring communities in Taï National Park (Côte d'Ivoire). MATERIALS AND METHODS To create a local Sr isoscape for the Taï Chimpanzee Project (TCP) study area, we sampled environmental samples from TCP-established territories (n = 35). To assess dispersal patterns, 34 tooth enamel samples (one per individual) were selected from the Taï chimpanzee skeletal collection. 87Sr/86Sr analysis was performed on all 69 samples at the W.M. Keck Lab. The theoretical density and overlap of chimpanzee communities as well as generalized linear mixed models (GLMMs) were used to test each question. RESULTS 87Sr/86Sr ratios for natal male chimpanzees ranged from 0.71662 to 0.72187, which is well within the corresponding environmental baseline range of 0.70774-0.73460. The local Sr isoscapes fit was estimated with the root-mean-square error value, which was 0.0048 (22% of the whole 87Sr/86Sr data range). GLMMs identified significant differences in 87Sr/86Sr ratios between natal and unknown North community origin groups, suggesting that after 1980, females of unknown origin could be immigrants to North community (n = 7, z-ratio = -4.08, p = 0.0001, power = 0.94). DISCUSSION This study indicates that 87Sr/86This study indicates that 87Sr/86Sr analysis can successfully identify immigrant females in skeletal collections obtained from wild chimpanzee communities, enabling the tracking of female dispersal patterns historically. There are, however, significant limitations within the scope of this study, such as (1) the absence of reliable maps for the TCP study area, (2) limited capacity for environmental sampling, (3) small sample sizes, and (4) tooth formation in wild chimpanzees.
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Affiliation(s)
- Renee D Boucher
- Department of Anthropology, University of California, Santa Cruz, California, USA
| | - Roman M Wittig
- Institute for Cognitive Sciences, UMR5229 CNRS, University of Lyon 1, Bron cedex, France
- Taï Chimpanzee Project, CSRS, Abidjan, Côte d'Ivoire
| | | | - Aleksey Maro
- Department of Integrative Biology, University of California, Berkeley, California, USA
| | - Xueye Wang
- Department of Anthropology, University of California, Santa Cruz, California, USA
- Center for Archaeological Science, Sichuan University, Chengdu, China
| | - Paul L Koch
- Department of Earth and Planetary Sciences, University of California, Santa Cruz, California, USA
| | - Vicky M Oelze
- Department of Anthropology, University of California, Santa Cruz, California, USA
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2
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Christian M, Oosthuizen WC, Bester MN, de Bruyn PJN. Robustly estimating the demographic contribution of immigration: Simulation, sensitivity analysis and seals. J Anim Ecol 2024; 93:632-645. [PMID: 38297453 DOI: 10.1111/1365-2656.14053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 01/11/2024] [Indexed: 02/02/2024]
Abstract
Identifying important demographic drivers of population dynamics is fundamental for understanding life-history evolution and implementing effective conservation measures. Integrated population models (IPMs) coupled with transient life table response experiments (tLTREs) allow ecologists to quantify the contributions of demographic parameters to observed population change. While IPMs can estimate parameters that are not estimable using any data source alone, for example, immigration, the estimated contribution of such parameters to population change is prone to bias. Currently, it is unclear when robust conclusions can be drawn from them. We sought to understand the drivers of a rebounding southern elephant seal population on Marion Island using the IPM-tLTRE framework, applied to count and mark-recapture data on 9500 female seals over nearly 40 years. Given the uncertainty around IPM-tLTRE estimates of immigration, we also aimed to investigate the utility of simulation and sensitivity analyses as general tools for evaluating the robustness of conclusions obtained in this framework. Using a Bayesian IPM and tLTRE analysis, we quantified the contributions of survival, immigration and population structure to population growth. We assessed the sensitivity of our estimates to choice of multivariate priors on immigration and other vital rates. To do so we make a novel application of Gaussian process priors, in comparison with commonly used shrinkage priors. Using simulation, we assessed our model's ability to estimate the demographic contribution of immigration under different levels of temporal variance in immigration. The tLTRE analysis suggested that adult survival and immigration were the most important drivers of recent population growth. While the contribution of immigration was sensitive to prior choices, the estimate was consistently large. Furthermore, our simulation study validated the importance of immigration by showing that our estimate of its demographic contribution is unlikely to result as a biased overestimate. Our results highlight the connectivity between distant populations of southern elephant seals, illustrating that female dispersal can be important in regulating the abundance of local populations even when natal site fidelity is high. More generally, we demonstrate how robust ecological conclusions may be obtained about immigration from the IPM-tLTRE framework, by combining sensitivity analysis and simulation.
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Affiliation(s)
- Murray Christian
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Hatfield, South Africa
- Centre for Statistics in Ecology, the Environment and Conservation, Department of Statistical Sciences, University of Cape Town, Cape Town, South Africa
| | - W Chris Oosthuizen
- Centre for Statistics in Ecology, the Environment and Conservation, Department of Statistical Sciences, University of Cape Town, Cape Town, South Africa
| | - Marthán N Bester
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Hatfield, South Africa
| | - P J Nico de Bruyn
- Department of Zoology and Entomology, Mammal Research Institute, University of Pretoria, Hatfield, South Africa
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3
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Luepold SB, Korner-Nievergelt F, Züst Z, Pasinelli G. It's about Her: Male Within-Season Movements Are Related to Mate Searching in a Songbird. Am Nat 2024; 203:562-575. [PMID: 38635362 DOI: 10.1086/729424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
AbstractIn species with resource-defense mating systems (such as most temperate-breeding songbirds), male dispersal is often considered to be limited in both frequency and spatial extent. When dispersal occurs within a breeding season, the favored explanation is ecological resource tracking. In contrast, movements of male birds associated with temporary emigration, such as polyterritoriality (i.e., defense of an additional location after attracting a female in the initial territory), are usually attributed to mate searching. We suggest that male dispersal and polyterritoriality are functionally related and that mate searching may be a unifying hypothesis for predicting the within-season movements of male songbirds. Here, we test three key predictions derived from this hypothesis in Wood Warblers (Phylloscopus sibilatrix). We collected data on the spatial behavior of 107 males between 2017 and 2019 and related male movements to a new territory (in both a dispersal and a polyterritorial context) to mating potential in the current territory. Most males dispersed from their territories within days or weeks after failing to attract a female, despite occupying territories in apparently suitable habitat. Probability of polyterritoriality by paired males increased after the peak fertile period of their mate. Males never dispersed following nest predation if the female remained to renest. Thus, our data are consistent with the hypothesis that both movement types are functionally related to mate searching.
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4
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Goldsborough Z, Crofoot MC, Barrett BJ. Male-biased stone tool use by wild white-faced capuchins (Cebus capucinus imitator). Am J Primatol 2024; 86:e23594. [PMID: 38196199 DOI: 10.1002/ajp.23594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 12/13/2023] [Accepted: 12/27/2023] [Indexed: 01/11/2024]
Abstract
Tool-using primates often show sex differences in both the frequency and efficiency of tool use. In species with sex-biased dispersal, such within-group variation likely shapes patterns of cultural transmission of tool-use traditions between groups. On the Panamanian islands of Jicarón and Coiba, a population of white-faced capuchins (Cebus capucinus imitator)-some of which engage in habitual stone tool use-provide an opportunity to test hypotheses about why such sex-biases arise. On Jicarón, we have only observed males engaging in stone tool use, whereas on Coiba, both sexes are known to use tools. Using 5 years of camera trap data, we provide evidence that this variation likely reflects a sex difference in tool use rather than a sampling artifact, and then test hypotheses about the factors driving this pattern. Differences in physical ability or risk-aversion, and competition over access to anvils do not account for the sex-differences in tool-use we observe. Our data show that adult females are physically capable of stone tool use: adult females on Coiba and juveniles on Jicarón smaller than adult females regularly engage in tool use. Females also have ample opportunity to use tools: the sexes are equally terrestrial, and competition over anvils is low. Finally, females rarely scrounge on left-over food items either during or after tool-using events, suggesting they are not being provisioned by males. Although it remains unclear why adult white-faced capuchin females on Jicarón do not use stone-tools, our results illustrate that such sex biases in socially learned behaviors can arise even in the absence of obvious physical, environmental, and social constraints. This suggests that a much more nuanced understanding of the differences in social structure, diet, and dispersal patterns are needed to explain why sex-biases in tool use arise in some populations but not in others.
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Affiliation(s)
- Zoë Goldsborough
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
- Center for the Advanced Study of Collective Behavior, University of Konstanz, Konstanz, Germany
- Smithsonian Tropical Research Institute, Ancon, Panama
| | - Margaret C Crofoot
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
- Center for the Advanced Study of Collective Behavior, University of Konstanz, Konstanz, Germany
- Smithsonian Tropical Research Institute, Ancon, Panama
| | - Brendan J Barrett
- Department for the Ecology of Animal Societies, Max Planck Institute of Animal Behavior, Konstanz, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
- Center for the Advanced Study of Collective Behavior, University of Konstanz, Konstanz, Germany
- Smithsonian Tropical Research Institute, Ancon, Panama
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5
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La Loggia O, Wilson AJ, Taborsky B. Early social complexity influences social behaviour but not social trajectories in a cooperatively breeding cichlid fish. ROYAL SOCIETY OPEN SCIENCE 2024; 11:230740. [PMID: 38571911 PMCID: PMC10990469 DOI: 10.1098/rsos.230740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/09/2023] [Accepted: 01/31/2024] [Indexed: 04/05/2024]
Abstract
Social competence-defined as the ability to optimize social behaviour according to available social information-can be influenced by the social environment experienced in early life. In cooperatively breeding vertebrates, the current group size influences behavioural phenotypes, but it is not known whether the group size experienced in early life influences behavioural phenotypes generally or social competence specifically. We tested whether being reared in large versus small groups for the first two months of life affects social behaviours, and associated life-history traits, in the cooperatively breeding cichlid Neolamprologus pulcher between the ages of four and twelve months. As we predicted, fish raised in larger and more complex groups showed higher social competence later in life. This was shown in several ways: they exhibited more, and earlier, submissive behaviour in response to aggression from a dominant conspecific, and-in comparison to fish raised in small groups-they exhibited more flexibility in the expression of submissive behaviour. By contrast, there was no evidence that early social complexity, as captured by the group size, affects aggression or exploration behaviour nor did it influence the propensity to disperse or show helping behaviour. Our results emphasize the importance of early-life social complexity for the development of social competence.
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Affiliation(s)
- Océane La Loggia
- Institute for Ecology and Evolution, Behavioural Ecology Division, University of Bern, Bern, Switzerland
| | - Alastair J. Wilson
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn, UK
| | - Barbara Taborsky
- Institute for Ecology and Evolution, Behavioural Ecology Division, University of Bern, Bern, Switzerland
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Dickel L, Arcese P, Keller LF, Nietlisbach P, Goedert D, Jensen H, Reid JM. Multigenerational Fitness Effects of Natural Immigration Indicate Strong Heterosis and Epistatic Breakdown in a Wild Bird Population. Am Nat 2024; 203:411-431. [PMID: 38358807 DOI: 10.1086/728669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
AbstractThe fitness of immigrants and their descendants produced within recipient populations fundamentally underpins the genetic and population dynamic consequences of immigration. Immigrants can in principle induce contrasting genetic effects on fitness across generations, reflecting multifaceted additive, dominance, and epistatic effects. Yet full multigenerational and sex-specific fitness effects of regular immigration have not been quantified within naturally structured systems, precluding inference on underlying genetic architectures and population outcomes. We used four decades of song sparrow (Melospiza melodia) life history and pedigree data to quantify fitness of natural immigrants, natives, and their F1, F2, and backcross descendants and test for evidence of nonadditive genetic effects. Values of key fitness components (including adult lifetime reproductive success and zygote survival) of F1 offspring of immigrant-native matings substantially exceeded their parent mean, indicating strong heterosis. Meanwhile, F2 offspring of F1-F1 matings had notably low values, indicating surprisingly strong epistatic breakdown. Furthermore, magnitudes of effects varied among fitness components and differed between female and male descendants. These results demonstrate that strong nonadditive genetic effects on fitness can arise within weakly structured and fragmented populations experiencing frequent natural immigration. Such effects will substantially affect the net degree of effective gene flow and resulting local genetic introgression and adaptation.
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Milich KM. Male-philopatric nonhuman primates and their potential role in understanding the evolution of human sociality. Evol Anthropol 2024; 33:e22014. [PMID: 38109039 DOI: 10.1002/evan.22014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/22/2023] [Accepted: 11/28/2023] [Indexed: 12/19/2023]
Abstract
In most primate species, males transfer out of their natal groups, resulting in groups of unrelated males. However, in a few species, including humans, males remain in their groups and form life-long associations with each other. This pattern of male philopatry is linked with cooperative male behaviors, including border patrols and predator defense. Because females in male-philopatric species form weaker kin networks with each other than in female-philopatric species, they are expected to evolve counter-strategies to male sexual coercion that are relatively independent of support from other females. Studies of male-philopatric nonhuman primates can provide insight into the evolutionary basis of prosocial behaviors, cooperation, and group action in humans and offer comparative models for understanding the sociality of other hominin species. This review will discuss patterns of dispersal and philopatry across primates, explore the resulting male and female behaviors, and argue that male-philopatric nonhuman primate species offer insight into the social and sexual dynamics of hominins throughout evolution.
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Affiliation(s)
- Krista M Milich
- Department of Anthropology, Washington University in St. Louis, St. Louis, Missouri, USA
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8
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Sommaro LV, Martínez JJ, Chiappero MB, Steinmann AR, Gardenal CN, Priotto JW. Relatedness dynamics and sex-biased dispersal in a seasonal cycle of corn mice from intensively managed agroecosystems. Curr Zool 2024; 70:1-12. [PMID: 38476139 PMCID: PMC10926262 DOI: 10.1093/cz/zoac092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 11/17/2022] [Indexed: 03/14/2024] Open
Abstract
The sex-biased dispersal and kinship dynamics are important factors shaping the spatial distribution of individuals and are key parameters affecting a variety of ecological and evolutionary processes. Here, we studied the spatial distribution of related individuals within a population of corn mice Calomys musculinus in a seasonal cycle to infer dispersal patterns. The sampling was carried out from spring 2005 to winter 2006 in field borders of intensively managed agroecosystems. Genotyping data from 346 individuals with 9 microsatellites showed spatial genetic structure was weak for males, but not for females. The results indicate a complex spatial kinship dynamic of related females across all seasons. Which, contrary to our expectations, dispersal distances decrease with the increase of the population abundance. Meanwhile, male dispersal distances were greater when population abundance increased and thus the availability of active females. Males disperse greater distances to mate and sire offspring with distant females as a possible inbreeding avoidance mechanism. This study shows that C. musculinus is capable of much greater scattering distances than previously reported and that dispersal occurs fluidly and without barriers across the agroecosystem. The indirect benefit of dispersal on individual fitness could be related to relaxing the competition in the natal area and increasing the mating rate. Our study highlights the value of combining genetic relatedness, fieldwork observations, and behavioral data to estimate dispersal at a fine geographical scale.
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Affiliation(s)
- Lucia V Sommaro
- Laboratorio de Ecología Evolutiva y Biogeografía, Instituto de Ecorregiones Andinas (INECOA), Universidad Nacional de Jujuy - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Salvador de Jujuy, Jujuy, Argentina
| | - Juan J Martínez
- Laboratorio de Ecología Evolutiva y Biogeografía, Instituto de Ecorregiones Andinas (INECOA), Universidad Nacional de Jujuy - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Salvador de Jujuy, Jujuy, Argentina
| | - Marina B Chiappero
- Instituto de Diversidad y Ecología Animal (IDEA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) and Universidad Nacional de Córdoba, Córdoba, Argentina
- Cátedra de Genética de Poblaciones y Evolución, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Andrea R Steinmann
- Grupo de Investigaciones en Ecología Poblacional y Comportamental (GIEPCO), Instituto de Ciencias de la Tierra, Biodiversidad y Ambiente (ICBIA), Universidad Nacional de Río Cuarto - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto, Córdoba, Argentina
| | - Cristina N Gardenal
- Instituto de Diversidad y Ecología Animal (IDEA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) and Universidad Nacional de Córdoba, Córdoba, Argentina
- Cátedra de Genética de Poblaciones y Evolución, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - José W Priotto
- Grupo de Investigaciones en Ecología Poblacional y Comportamental (GIEPCO), Instituto de Ciencias de la Tierra, Biodiversidad y Ambiente (ICBIA), Universidad Nacional de Río Cuarto - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto, Córdoba, Argentina
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9
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Reid JM, Dickel L, Keller LF, Nietlisbach P, Arcese P. Multi-generation genetic contributions of immigrants reveal cryptic elevated and sex-biased effective gene flow within a natural meta-population. Ecol Lett 2024; 27:e14377. [PMID: 38361472 DOI: 10.1111/ele.14377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 02/17/2024]
Abstract
Impacts of immigration on micro-evolution and population dynamics fundamentally depend on net rates and forms of resulting gene flow into recipient populations. Yet, the degrees to which observed rates and sex ratios of physical immigration translate into multi-generational genetic legacies have not been explicitly quantified in natural meta-populations, precluding inference on how movements translate into effective gene flow and eco-evolutionary outcomes. Our analyses of three decades of complete song sparrow (Melospiza melodia) pedigree data show that multi-generational genetic contributions from regular natural immigrants substantially exceeded those from contemporary natives, consistent with heterosis-enhanced introgression. However, while contributions from female immigrants exceeded those from female natives by up to three-fold, male immigrants' lineages typically went locally extinct soon after arriving. Both the overall magnitude, and the degree of female bias, of effective gene flow therefore greatly exceeded those which would be inferred from observed physical arrivals, altering multiple eco-evolutionary implications of immigration.
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Affiliation(s)
- Jane M Reid
- Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- School of Biological Sciences, University of Aberdeen, Aberdeen, UK
| | - Lisa Dickel
- Centre for Biodiversity Dynamics, Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Lukas F Keller
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
- Natural History Museum, University of Zurich, Zurich, Switzerland
| | - Pirmin Nietlisbach
- School of Biological Sciences, Illinois State University, Normal, Illinois, USA
| | - Peter Arcese
- Department of Forest & Conservation Sciences, University of British Columbia, Vancouver, British Columbia, Canada
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10
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White LC, Städele V, Ramirez Amaya S, Langergraber K, Vigilant L. Female chimpanzees avoid inbreeding even in the presence of substantial bisexual philopatry. ROYAL SOCIETY OPEN SCIENCE 2024; 11:230967. [PMID: 38234436 PMCID: PMC10791533 DOI: 10.1098/rsos.230967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 12/13/2023] [Indexed: 01/19/2024]
Abstract
Inbreeding (reproduction between relatives) often decreases the fitness of offspring and is thus expected to lead to the evolution of inbreeding avoidance strategies. Chimpanzees (Pan troglodytes) are expected to avoid inbreeding as they are long-lived, invest heavily in offspring and may encounter adult, opposite sex kin frequently, especially in populations where both males and females commonly remain in the group in which they were born (bisexual philopatry). However, it is unclear whether substantial bisexual philopatry has been a feature of chimpanzees' evolutionary history or whether it is a result of recent anthropogenic interference, as the only groups for which it has been documented are significantly impacted by human encroachment and experience notable rates of potentially unsustainable inbreeding. Here we use 14 years of observational data and a large genomic dataset of 256 481 loci sequenced from 459 individuals to document dispersal and inbreeding dynamics in an eastern chimpanzee (P. t. schweinfurthii) community with low levels of anthropogenic disturbance. We document the first case of substantial bisexual philopatry in a relatively undisturbed chimpanzee community and show that, despite an increased inbreeding risk incurred by females who do not disperse before reaching reproductive age, natal females were still able to avoid producing inbred offspring.
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Affiliation(s)
- Lauren C. White
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
- Arthur Rylah Institute for Environmental Research, Department of Energy, Environment and Climate Action, Melbourne, Australia
| | - Veronika Städele
- Institute of Human Origins, School of Human Evolution and Social Change, Arizona State University, Tempe, AZ, USA
| | - Sebastian Ramirez Amaya
- Institute of Human Origins, School of Human Evolution and Social Change, Arizona State University, Tempe, AZ, USA
| | - Kevin Langergraber
- Institute of Human Origins, School of Human Evolution and Social Change, Arizona State University, Tempe, AZ, USA
| | - Linda Vigilant
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
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11
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Duncan C, Thorley J, Manser MB, Clutton-Brock T. Dominance loss and tenure maintenance in Kalahari meerkats. Behav Ecol 2023; 34:979-991. [PMID: 37969548 PMCID: PMC10636735 DOI: 10.1093/beheco/arad066] [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: 01/17/2023] [Revised: 07/10/2023] [Accepted: 07/31/2023] [Indexed: 11/17/2023] Open
Abstract
In many social species, both the acquisition of dominance and the duration that individuals maintain their status are important determinants of breeding tenure and lifetime reproductive success. However, few studies have yet examined the extent and causes of variation in dominance tenure and the duration of breeding lifespans. Here, we investigate the processes that terminate dominance tenures and examine how they differ between the sexes in wild Kalahari meerkats (Suricata suricatta), a cooperative breeder where a dominant breeding pair produces most of the young recruited into each group. Mortality and displacement by resident subordinate competitors were important forms of dominance loss for both sexes. However, dominant males (but rarely females) were also at risk of takeovers by extra-group invading males. Dominant males also differed from dominant females in that they abandoned their group after the death of their breeding partner, when no other breeding opportunities were present, whereas dominant females that lost their partner remained and continued to breed in the same group. We show that a larger number of processes can terminate dominance tenure in males with the result that the average male tenure of breeding positions was shorter than that of females, which contributes to the reduced variance in the lifetime reproductive success in males compared to females. Our analysis suggests that sex differences in emigration and immigration may often have downstream consequences for sex differences in reproductive variance and for the selection pressures operating on females and males.
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Affiliation(s)
- Chris Duncan
- Large Animal Research Group, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
- Kalahari Research Centre, Kuruman River Reserve, Northern Cape 8467, South Africa
| | - Jack Thorley
- Large Animal Research Group, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
- Kalahari Research Centre, Kuruman River Reserve, Northern Cape 8467, South Africa
| | - Marta B Manser
- Kalahari Research Centre, Kuruman River Reserve, Northern Cape 8467, South Africa
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
- Mammal Research Institute, University of Pretoria, 0028 Pretoria, South Africa
| | - Tim Clutton-Brock
- Large Animal Research Group, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
- Kalahari Research Centre, Kuruman River Reserve, Northern Cape 8467, South Africa
- Mammal Research Institute, University of Pretoria, 0028 Pretoria, South Africa
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12
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Strøm JF, Bøhn T, Skjaeraasen JE, Gjelland KØ, Karlsen Ø, Johansen T, Hanebrekke T, Bjørn PA, Olsen EM. Movement diversity and partial sympatry of coastal and Northeast Arctic cod ecotypes at high latitudes. J Anim Ecol 2023; 92:1966-1978. [PMID: 37485731 DOI: 10.1111/1365-2656.13989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/04/2023] [Indexed: 07/25/2023]
Abstract
Movement diversity within species represent an important but often neglected, component of biodiversity that affects ecological and genetic interactions, as well as the productivity of exploited systems. By combining individual tracking data from acoustic telemetry with novel genetic analyses, we describe the movement diversity of two Atlantic cod Gadus morhua ecotypes in two high-latitude fjord systems: the highly migratory Northeast Arctic cod (NEA cod) that supports the largest cod fishery in the world, and the more sedentary Norwegian coastal cod, which is currently in a depleted state. As predicted, coastal cod displayed a higher level of fjord residency than NEA cod. Of the cod tagged during the spawning season, NEA cod left the fjords permanently to a greater extent and earlier compared to coastal cod, which to a greater extent remained resident and left the fjords temporarily. Despite this overall pattern, horizontal movements atypical for the ecotypes were common with some NEA cod remaining within the fjords year-round and some coastal cod displaying a low fjord fidelity. Fjord residency and exit timing also differed with spawning status and body size, with spawning cod and large individuals tagged during the feeding season more prone to leave the fjords and earlier than non-spawning and smaller individuals. While our results confirm a lower fjord dependency for NEA cod, they highlight a movement diversity within each ecotype and sympatric residency between ecotypes, previously undetected by population-level monitoring. This new knowledge is relevant for the management, which should base their fisheries advice for these interacting ecotypes on their habitat use and seasonal movements.
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Affiliation(s)
| | - Thomas Bøhn
- Institute of Marine Research, Tromsø, Norway
| | | | - Karl Øystein Gjelland
- Department of Arctic Ecology, Norwegian Institute of Nature Research (NINA), Tromsø, Norway
| | | | | | | | | | - Esben Moland Olsen
- Institute of Marine Research, His, Norway
- Department of Natural Sciences, Centre for Coastal Research, University of Agder, Kristiansand, Norway
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13
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Heifetz A. The disperser dilemma in cooperatively breeding birds. J Evol Biol 2023; 36:1539-1546. [PMID: 37702035 DOI: 10.1111/jeb.14211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 09/14/2023]
Abstract
In most cooperatively breeding birds, individuals do not breed with their natal group members. In order to breed, they have either to disperse into another group or wait for an opposite-sex individual to join their group. In most of these species, females disperse more than males. We develop a dynamic game-theoretic model to account for this asymmetry. When males are physically larger/heavier than females, this allows them to effectively welcome female immigrants into their natal group and overcome the local females' opposition more than vice versa. The model further assumes that the dispersal decision is not confined to a restricted time window, but is rather based on acquired information and responsive to opportunities. The model predicts that (i) females disperse more than males, and (ii) females are willing to tolerate more risks in dispersal than do males. The latter prediction is supported inter alia by the fact that in many cooperatively breeding birds, females disperse at a younger age, and further away from their natal group as compared to dispersing males.
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14
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Guido JM, Cecchetto NR, Plaza PI, Donázar JA, Lambertucci SA. The Influence of Age, Sex and Season on Andean Condor Ranging Behavior during the Immature Stage. Animals (Basel) 2023; 13:1234. [PMID: 37048490 PMCID: PMC10092982 DOI: 10.3390/ani13071234] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
Immature individuals move from their natal area to the area where they settle and reproduce, and this may take several years. This process is essential for long-lived species such as vultures and condors, which spend long periods as immature and move extensively. We studied the movement behavior of 26 GPS-tagged immature Andean condors (Vultur gryphus) from northwestern Patagonia throughout the immature stage, analyzing whether these patterns differed according to age, sex and season. We found that season and age influenced home range size and flight distances, the warm season being when immature condors move most; movement patterns were greater in sub-adults than in juveniles. The age effect was associated with the sex of individuals, with males increasing their home range more than females. Our results provide the first description of how immature Andean condor movement patterns are affected by internal and external factors. This information could be key to understanding condor responses to environmental change and threats at different stages during their immature phase. Until now, condor conservation efforts have not considered the areas used by dispersing individuals. Our results increase our understanding of ranging behavior during the immature stage of this threatened bird, enabling us to improve the conservation policies and management strategies designed to protect them.
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Affiliation(s)
- Jorgelina María Guido
- Grupo de Investigaciones en Biología de la Conservación (GRINBIC), Laboratorio Ecotono, INIBIOMA (Universidad Nacional del Comahue–CONICET), Pasaje Gutiérrez 1125, San Carlos de Bariloche R8400FRF, Río Negro, Argentina
- The Peregrine Fund, 5668 West Flying Hawk Lane, Boise, ID 83709, USA
| | - Nicolás Rodolfo Cecchetto
- Grupo de Ecología de la Polinización (EcoPol), Laboratorio Ecotono, INIBIOMA (Universidad Nacional del Comahue–CONICET), Pasaje Gutiérrez 1125, San Carlos de Bariloche R8400FRF, Río Negro, Argentina
| | - Pablo Ignacio Plaza
- Grupo de Investigaciones en Biología de la Conservación (GRINBIC), Laboratorio Ecotono, INIBIOMA (Universidad Nacional del Comahue–CONICET), Pasaje Gutiérrez 1125, San Carlos de Bariloche R8400FRF, Río Negro, Argentina
| | - José Antonio Donázar
- Department of Conservation Biology, Estación Biológica de Doñana, CSIC, 41092 Sevilla, Spain
| | - Sergio Agustín Lambertucci
- Grupo de Investigaciones en Biología de la Conservación (GRINBIC), Laboratorio Ecotono, INIBIOMA (Universidad Nacional del Comahue–CONICET), Pasaje Gutiérrez 1125, San Carlos de Bariloche R8400FRF, Río Negro, Argentina
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15
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Keevil MG, Noble N, Boyle SP, Lesbarrères D, Brooks RJ, Litzgus JD. Lost reproductive value reveals a high burden of juvenile road mortality in a long-lived species. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2023; 33:e2789. [PMID: 36482023 DOI: 10.1002/eap.2789] [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: 02/09/2022] [Revised: 07/23/2022] [Accepted: 08/25/2022] [Indexed: 06/17/2023]
Abstract
Adult mortality is often the most sensitive vital rate affecting at-risk wildlife populations. Therefore, road ecology studies often focus on adult mortality despite the possibility for roads to be hazardous to juvenile individuals during natal dispersal. Failure to quantify concurrent variation in mortality risk and population sensitivity across demographic states can mislead the efforts to understand and mitigate the effects of population threats. To compare relative population impacts from road mortality among demographic classes, we weighted mortality observations by applying reproductive value analysis to quantify expected stage-specific contributions to population growth. We demonstrate this approach for snapping turtles (Chelydra serpentina) observed on roads at two focal sites in Ontario, Canada, where we collected data for both live and dead individuals observed on roads. We estimated reproductive values using stage-classified matrix models to compare relative population-level impacts of adult and juvenile mortality. Reproductive value analysis is a tractable approach to assessing demographically variable effects for applications covering large spatial scales, nondiscrete populations, or where abundance data are lacking. For one site with long-term life-history data, we compared demographic frequency on roads to expected general population frequencies predicted by the matrix model. Our application of reproductive value is sex specific but, as juvenile snapping turtles lack external secondary sex characters, we estimated the sex ratio of road-crossing juveniles after dissecting and sexing carcasses collected on roads at five sites across central Ontario, Canada. Juveniles were more abundant on roads than expected, suggesting a substantial dispersal contribution, and the road-killed juvenile sex ratio approached 1:1. A higher proportion of juveniles were also found dead compared with adults, and cumulative juvenile mortality had similar population-level importance as adult mortality. This suggests that the impact of roads needs to be considered across all life stages, even in wildlife species with slow life histories, such as snapping turtles, that are particularly sensitive to adult mortality.
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Affiliation(s)
- Matthew G Keevil
- School of Natural Sciences, Laurentian University, Sudbury, Ontario, Canada
| | - Natasha Noble
- School of Natural Sciences, Laurentian University, Sudbury, Ontario, Canada
| | - Sean P Boyle
- School of Natural Sciences, Laurentian University, Sudbury, Ontario, Canada
| | - David Lesbarrères
- School of Natural Sciences, Laurentian University, Sudbury, Ontario, Canada
| | - Ronald J Brooks
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
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16
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Jungwirth A, Zöttl M, Bonfils D, Josi D, Frommen JG, Taborsky M. Philopatry yields higher fitness than dispersal in a cooperative breeder with sex-specific life history trajectories. SCIENCE ADVANCES 2023; 9:eadd2146. [PMID: 36867697 PMCID: PMC9984175 DOI: 10.1126/sciadv.add2146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Social evolution is tightly linked to dispersal decisions, but the ecological and social factors selecting for philopatry or dispersal often remain obscure. Elucidating selection mechanisms underlying alternative life histories requires measurement of fitness effects in the wild. We report on a long-term field study of 496 individually marked cooperatively breeding fish, showing that philopatry is beneficial as it increases breeding tenure and lifetime reproductive success in both sexes. Dispersers predominantly join established groups and end up in smaller groups when they ascend to dominance. Life history trajectories are sex specific, with males growing faster, dying earlier, and dispersing more, whereas females more likely inherit a breeding position. Increased male dispersal does not seem to reflect an adaptive preference but rather sex-specific differences in intrasexual competition. Cooperative groups may thus be maintained because of inherent benefits of philopatry, of which females seem to get the greater share in social cichlids.
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Affiliation(s)
- Arne Jungwirth
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Wohlenstrasse 50a, CH-3032 Hinterkappelen, Switzerland
- Konrad Lorenz Institute of Ethology, University of Veterinary Medicine Vienna, Savoyenstraße 1a, A-1160 Vienna, Austria
| | - Markus Zöttl
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Wohlenstrasse 50a, CH-3032 Hinterkappelen, Switzerland
- Ecology and Evolution in Microbial Model Systems, EEMiS, Department of Biology and Environmental Science, Linnaeus University, SE-391 82 Kalmar, Sweden
| | - Danielle Bonfils
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Wohlenstrasse 50a, CH-3032 Hinterkappelen, Switzerland
| | - Dario Josi
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Wohlenstrasse 50a, CH-3032 Hinterkappelen, Switzerland
- Eawag Swiss Federal Institute of Aquatic Science and Technology, CH-6047 Kastanienbaum, Switzerland
| | - Joachim G. Frommen
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Wohlenstrasse 50a, CH-3032 Hinterkappelen, Switzerland
- Ecology and Environment Research Centre, Department of Natural Sciences, Manchester Metropolitan University, Chester Street, M1 5GD Manchester, United Kingdom
| | - Michael Taborsky
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Wohlenstrasse 50a, CH-3032 Hinterkappelen, Switzerland
- Max Planck Institute of Animal Behavior, D-78467 Konstanz, Germany
- Institute for Advanced Study (Wissenschaftskolleg) Berlin, D-14193 Berlin, Germany
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17
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Adjapong AO, Oppong SK, Nsor CA, Boakye EA, Ashiagbor G, Danquah E. Demography and reproductive seasonality of small terrestrial mammals in two forest ecosystems in Ghana. Afr J Ecol 2023. [DOI: 10.1111/aje.13137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Abena Owusu Adjapong
- Department of Ecotourism, Recreation and Hospitality University of Energy and Natural Resources (UENR) Sunyani Ghana
- Department of Wildlife and Range Management, Faculty of Renewable Natural Resources Kwame Nkrumah University of Science and Technology Kumasi Ghana
| | - Samuel Kingsley Oppong
- Department of Wildlife and Range Management, Faculty of Renewable Natural Resources Kwame Nkrumah University of Science and Technology Kumasi Ghana
| | - Collins Ayine Nsor
- Department of Ecotourism and Forest Recreation, Faculty of Renewable Natural Resources Kwame Nkrumah University of Science and Technology Kumasi Ghana
| | | | - George Ashiagbor
- Department of Wildlife and Range Management, Faculty of Renewable Natural Resources Kwame Nkrumah University of Science and Technology Kumasi Ghana
| | - Emmanuel Danquah
- Department of Wildlife and Range Management, Faculty of Renewable Natural Resources Kwame Nkrumah University of Science and Technology Kumasi Ghana
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18
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Kyogoku D, Yamaguchi R. Males and females contribute differently to the evolution of habitat segregation driven by hybridization. J Evol Biol 2023; 36:515-528. [PMID: 36721300 DOI: 10.1111/jeb.14156] [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: 10/02/2022] [Revised: 12/27/2022] [Accepted: 01/11/2023] [Indexed: 02/02/2023]
Abstract
Costly heterospecific mating interactions, such as hybridization, select for prezygotic reproductive isolation. One of the potential traits responding to the selection arising from maladaptive hybridization is habitat preference, whose divergence results in interspecific habitat segregation. Theoretical studies have so far assumed that habitat preference is a sexually shared trait. However, male and female habitat preferences can experience different selection pressures. Here, by combining analytical and simulation approaches, we theoretically examine the evolution of sex-specific habitat preferences. Habitat segregation can have demographic consequences, potentially generating eco-evolutionary dynamics. We thus explicitly consider demography in the simulation model. We also vary the degrees of species discrimination to examine how mate choice influences the evolution of habitat preferences. Results show that both sexes can reduce hybridisation risk by settling in the habitats where abundant conspecific mates reside. However, when females can discriminate species, excess conspecific male aggregation intensifies male-male competition for mating opportunities, posing an obstacle to conspecific aggregation. Meanwhile, conspecific female aggregation attracts conspecific males, by offering the mating opportunity. Therefore, under effective species discrimination, females play a leading role in initiating habitat use divergence. Simulations typically result in either the coexistence with established habitat segregation or the extinction of one of the species. The former result is especially likely when the species differ to some extent in habitat preferences upon secondary contact. Our results disentangle the selection pressures acting on male and female habitat preferences, deepening our understanding of the evolutionary process of habitat segregation due to hybridization.
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Affiliation(s)
| | - Ryo Yamaguchi
- Department of Advanced Transdisciplinary Science, Hokkaido University, Sapporo, Japan.,Department of Zoology & Biodiversity Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
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19
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Dorsey OC, Rosenthal GG. A taste for the familiar: explaining the inbreeding paradox. Trends Ecol Evol 2023; 38:132-142. [PMID: 36241551 DOI: 10.1016/j.tree.2022.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 09/04/2022] [Accepted: 09/12/2022] [Indexed: 11/06/2022]
Abstract
The negative consequences of inbreeding have led animal biologists to assume that mate choice is generally biased against relatives. However, inbreeding avoidance is highly variable and by no means the rule across animal taxa. Even when inbreeding is costly, there are numerous examples of animals failing to avoid inbreeding or even preferring to mate with close kin. We argue that selective and mechanistic constraints interact to limit the evolution of inbreeding avoidance, notably when there is a risk of mating with heterospecifics and losing fitness through hybridization. Further, balancing inbreeding avoidance with conspecific mate preference may drive the evolution of multivariate sexual communication. Studying different social and sexual decisions within the same species can illuminate trade-offs among mate-choice mechanisms.
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Affiliation(s)
- Owen C Dorsey
- Program in Ecology and Evolutionary Biology and Department of Biology, Texas A&M University, TX, USA; Centro de Investigaciones Científicas de las Huastecas "Aguazarca", Calnali, Hidalgo, Mexico.
| | - Gil G Rosenthal
- Centro de Investigaciones Científicas de las Huastecas "Aguazarca", Calnali, Hidalgo, Mexico; Department of Biology, University of Padua, Padua, Italy
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20
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Fandos G, Talluto M, Fiedler W, Robinson RA, Thorup K, Zurell D. Standardised empirical dispersal kernels emphasise the pervasiveness of long-distance dispersal in European birds. J Anim Ecol 2023; 92:158-170. [PMID: 36398379 DOI: 10.1111/1365-2656.13838] [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: 10/15/2021] [Accepted: 10/01/2022] [Indexed: 11/19/2022]
Abstract
Dispersal is a key life-history trait for most species and is essential to ensure connectivity and gene flow between populations and facilitate population viability in variable environments. Despite the increasing importance of range shifts due to global change, dispersal has proved difficult to quantify, limiting empirical understanding of this phenotypic trait and wider synthesis. Here, we introduce a statistical framework to estimate standardised dispersal kernels from biased data. Based on this, we compare empirical dispersal kernels for European breeding birds considering age (average dispersal; natal, before first breeding; and breeding dispersal, between subsequent breeding attempts) and sex (females and males) and test whether different dispersal properties are phylogenetically conserved. We standardised and analysed data from an extensive volunteer-based bird ring-recoveries database in Europe (EURING) by accounting for biases related to different censoring thresholds in reporting between countries and to migratory movements. Then, we fitted four widely used probability density functions in a Bayesian framework to compare and provide the best statistical descriptions of the different age and sex-specific dispersal kernels for each bird species. The dispersal movements of the 234 European bird species analysed were statistically best explained by heavy-tailed kernels, meaning that while most individuals disperse over short distances, long-distance dispersal is a prevalent phenomenon in almost all bird species. The phylogenetic signal in both median and long dispersal distances estimated from the best-fitted kernel was low (Pagel's λ < 0.25), while it reached high values (Pagel's λ >0.7) when comparing dispersal distance estimates for fat-tailed dispersal kernels. As expected in birds, natal dispersal was on average 5 km greater than breeding dispersal, but sex-biased dispersal was not detected. Our robust analytical framework allows sound use of widely available mark-recapture data in standardised dispersal estimates. We found strong evidence that long-distance dispersal is common among European breeding bird species and across life stages. The dispersal estimates offer a first guide to selecting appropriate dispersal kernels in range expansion studies and provide new avenues to improve our understanding of the mechanisms and rules underlying dispersal events.
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Affiliation(s)
- Guillermo Fandos
- Institute for Biochemistry and Biology, University of Potsdam, Potsdam, Germany.,Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Matthew Talluto
- Department of Ecology, University of Innsbruck, Innsbruck, Austria
| | - Wolfgang Fiedler
- Department of Biology, Max Planck Institute of Animal Behavior, University of Konstanz, Radolfzell, Germany
| | - Robert A Robinson
- British Trust for Ornithology, Thetford, Norfolk, UK.,European Union for Bird Ringing c/o British Trust for Ornithology, Norfolk, UK
| | - Kasper Thorup
- Center for Macroecology, Evolution and Climate, Globe Institute, University of Copenhagen, Copenhagen, Denmark.,Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
| | - Damaris Zurell
- Institute for Biochemistry and Biology, University of Potsdam, Potsdam, Germany.,Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany
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21
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Rech F, Narimanov N, Bauer T, Schirmel J. Urbanization increases fluctuating asymmetry and affects behavioral traits of a common grasshopper. Ecol Evol 2022; 12:e9658. [PMID: 36568863 PMCID: PMC9772494 DOI: 10.1002/ece3.9658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/02/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
Urbanization has a major impact on biodiversity. For many organisms, the urbanization process means environmental stress caused by fragmentation and increased temperatures in cities and atmospheric, soil, light, and noise pollution. Such environmental stress can influence both the morphology and behavior of animals. Hence, individuals might be selected for survival-facilitating traits under high pressures in urban areas. The specific impact of urbanization on insect behavior is still largely unexplored. We studied the impact of urbanization on one of the most common grasshopper species in Germany, Chorthippus biguttulus, by comparing morphological and behavioral traits of individuals sampled from grasslands with low, medium, and high urbanization levels. We first investigated whether urbanization as a stressor affected body size and fluctuating asymmetry in the locomotor organs. Next, we examined whether urbanization induced changes in the individuals' boldness and activity. Our results showed that fluctuating asymmetry of grasshoppers' locomotory organs increased more than twofold with urbanization level. Further, individuals' boldness and walking activity increased from areas with low to high urbanization levels. Our results indicate strong responses of grasshoppers in terms of morphology and behavior to the urban environment. To compensate for urbanization effects on arthropod populations, management strategies need to be developed that maintain ecological processes and reduce environmental stress in urban areas.
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Affiliation(s)
- Florian Rech
- iES Landau, Institute for Environmental SciencesUniversity of Koblenz‐LandauLandauGermany,Faculty of Environment and Natural ResourcesUniversity of FreiburgFreiburgGermany
| | - Nijat Narimanov
- iES Landau, Institute for Environmental SciencesUniversity of Koblenz‐LandauLandauGermany,Institute of Organismic and Molecular Evolution (iomE)Johannes Gutenberg UniversityMainzGermany
| | - Tobias Bauer
- iES Landau, Institute for Environmental SciencesUniversity of Koblenz‐LandauLandauGermany,State Museum of Natural History KarlsruheKarlsruheGermany
| | - Jens Schirmel
- iES Landau, Institute for Environmental SciencesUniversity of Koblenz‐LandauLandauGermany
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22
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Davidian E, Höner OP. Kinship and similarity drive coordination of breeding-group choice in male spotted hyenas. Biol Lett 2022; 18:20220402. [PMID: 36514956 DOI: 10.1098/rsbl.2022.0402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
When and where animals reproduce influences the social, demographic and genetic properties of the groups and populations they live in. We examined the extent to which male spotted hyenas (Crocuta crocuta) coordinate their breeding-group choice. We tested whether their propensity to settle in the same group is shaped by passive processes driven by similarities in their socio-ecological background and genotype or by an adaptive process driven by kin selection. We compared the choices of 148 pairs of same-cohort males that varied in similarity and kinship. We found strong support for both processes. Coordination was highest (70% of pairs) for littermates, who share most cumulative similarity, lower (36%) among peers born in the same group to different mothers, and lowest (7%) among strangers originating from different groups and mothers. Consistent with the kin selection hypothesis, the propensity to choose the same group was density dependent for full siblings and close kin, but not distant kin. Coordination increased as the number of breeding females and male competitors in social groups increased, i.e. when costs of kin competition over mates decreased and benefits of kin cooperation increased. Our results contrast with the traditional view that breeding-group choice and dispersal are predominantly solitary processes.
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Affiliation(s)
- Eve Davidian
- Ngorongoro Hyena Project, Ngorongoro Conservation Area, Arusha, Tanzania
| | - Oliver P Höner
- Ngorongoro Hyena Project, Ngorongoro Conservation Area, Arusha, Tanzania.,Department of Evolutionary Ecology, Leibniz Institute for Zoo and Wildlife Research, Berlin 10315, Germany
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23
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Schacht R, Beissinger SR, Wedekind C, Jennions MD, Geffroy B, Liker A, Kappeler PM, Weissing FJ, Kramer KL, Hesketh T, Boissier J, Uggla C, Hollingshaus M, Székely T. Adult sex ratios: causes of variation and implications for animal and human societies. Commun Biol 2022; 5:1273. [PMID: 36402823 PMCID: PMC9675760 DOI: 10.1038/s42003-022-04223-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 11/03/2022] [Indexed: 11/21/2022] Open
Abstract
Converging lines of inquiry from across the social and biological sciences target the adult sex ratio (ASR; the proportion of males in the adult population) as a fundamental population-level determinant of behavior. The ASR, which indicates the relative number of potential mates to competitors in a population, frames the selective arena for competition, mate choice, and social interactions. Here we review a growing literature, focusing on methodological developments that sharpen knowledge of the demographic variables underlying ASR variation, experiments that enhance understanding of the consequences of ASR imbalance across societies, and phylogenetic analyses that provide novel insights into social evolution. We additionally highlight areas where research advances are expected to make accelerating contributions across the social sciences, evolutionary biology, and biodiversity conservation.
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Affiliation(s)
- Ryan Schacht
- grid.255364.30000 0001 2191 0423Department of Anthropology, East Carolina University, Greenville, NC USA
| | - Steven R. Beissinger
- grid.47840.3f0000 0001 2181 7878Department of Environmental Science, Policy and Management and Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720 USA
| | - Claus Wedekind
- grid.9851.50000 0001 2165 4204Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland
| | - Michael D. Jennions
- grid.1001.00000 0001 2180 7477Ecology & Evolution, Research School of Biology, The Australian National University, Acton, Canberra 2601 Australia
| | - Benjamin Geffroy
- MARBEC Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - András Liker
- grid.7336.10000 0001 0203 5854ELKH-PE Evolutionary Ecology Research Group, University of Pannonia, 8210 Veszprém, Hungary ,grid.7336.10000 0001 0203 5854Behavioural Ecology Research Group, Center for Natural Sciences, University of Pannonia, 8210 Veszprém, Hungary
| | - Peter M. Kappeler
- grid.418215.b0000 0000 8502 7018Behavioral Ecology and Sociobiology Unit, German Primate Center, Leibniz Institute of Primate Biology, 37077 Göttingen, Germany ,grid.7450.60000 0001 2364 4210Department of Sociobiology/Anthropology, University of Göttingen, 37077 Göttingen, Germany
| | - Franz J. Weissing
- grid.4830.f0000 0004 0407 1981Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Karen L. Kramer
- grid.223827.e0000 0001 2193 0096Department of Anthropology, University of Utah, Salt Lake City, UT USA
| | - Therese Hesketh
- grid.83440.3b0000000121901201Institute of Global Health, University College London, London, UK ,grid.13402.340000 0004 1759 700XCentre for Global Health, Zhejiang University School of Medicine, Hangzhou, P.R. China
| | - Jérôme Boissier
- grid.4444.00000 0001 2112 9282IHPE Univ Perpignan Via Domitia, CNRS, Ifremer, Univ Montpellier, Perpignan, France
| | - Caroline Uggla
- grid.10548.380000 0004 1936 9377Stockholm University Demography Unit, Sociology Department, Stockholm University, 106 91 Stockholm, Sweden
| | - Mike Hollingshaus
- grid.223827.e0000 0001 2193 0096Kem C. Gardner Policy Institute, David Eccles School of Business, University of Utah, Salt Lake City, UT USA
| | - Tamás Székely
- grid.7340.00000 0001 2162 1699Milner Centre for Evolution, University of Bath, Bath, BA2 7AY UK ,grid.7122.60000 0001 1088 8582ELKH-DE Reproductive Strategies Research Group, Department of Zoology and Human Biology, University of Debrecen, H-4032 Debrecen, Hungary
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Pašukonis A, Serrano-Rojas SJ, Fischer MT, Loretto MC, Shaykevich DA, Rojas B, Ringler M, Roland AB, Marcillo-Lara A, Ringler E, Rodríguez C, Coloma LA, O'Connell LA. Contrasting parental roles shape sex differences in poison frog space use but not navigational performance. eLife 2022; 11:e80483. [PMID: 36377473 PMCID: PMC9665844 DOI: 10.7554/elife.80483] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022] Open
Abstract
Sex differences in vertebrate spatial abilities are typically interpreted under the adaptive specialization hypothesis, which posits that male reproductive success is linked to larger home ranges and better navigational skills. The androgen spillover hypothesis counters that enhanced male spatial performance may be a byproduct of higher androgen levels. Animal groups that include species where females are expected to outperform males based on life-history traits are key for disentangling these hypotheses. We investigated the association between sex differences in reproductive strategies, spatial behavior, and androgen levels in three species of poison frogs. We tracked individuals in natural environments to show that contrasting parental sex roles shape sex differences in space use, where the sex performing parental duties shows wider-ranging movements. We then translocated frogs from their home areas to test their navigational performance and found that the caring sex outperformed the non-caring sex only in one out of three species. In addition, males across species displayed more explorative behavior than females and androgen levels correlated with explorative behavior and homing accuracy. Overall, we reveal that poison frog reproductive strategies shape movement patterns but not necessarily navigational performance. Together this work suggests that prevailing adaptive hypotheses provide an incomplete explanation of sex differences in spatial abilities.
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Affiliation(s)
- Andrius Pašukonis
- Institute of Biosciences, Vilnius University Life Sciences CenterVilniusLithuania
- CEFE, Univ MontpellierMontpellierFrance
- Department of Biology, Stanford UniversityStanfordUnited States
| | - Shirley Jennifer Serrano-Rojas
- Department of Biology, Stanford UniversityStanfordUnited States
- Universidad Nacional de San Antonio Abad del CuscoCuscoPeru
| | | | - Matthias-Claudio Loretto
- Technical University of Munich, TUM School of Life Sciences, Ecosystem Dynamics and Forest Management, Hans-Carl-von-Carlowitz-PlatzFreisingGermany
- Berchtesgaden National Park, DoktorbergBerchtesgadenGermany
| | | | - Bibiana Rojas
- Department of Interdisciplinary Life Sciences, Konrad Lorenz Institute of Ethology, University of Veterinary Medicine ViennaViennaAustria
- Department of Biology and Environmental Science, University of JyväskyläJyväskyläFinland
| | - Max Ringler
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of BernHinterkappelenSwitzerland
- Institute of Electronic Music and Acoustics, University of Music and Performing Arts GrazGrazAustria
- Department of Behavioral and Cognitive Biology, University of ViennaViennaAustria
- Department of Evolutionary Biology, University of ViennaViennaAustria
| | - Alexandre B Roland
- Research Center on Animal Cognition, Center for Integrative Biology, CNRS - Paul Sabatier UniversityToulouseFrance
| | - Alejandro Marcillo-Lara
- Department of Integrative Biology, Oklahoma State UniversityStillwaterUnited States
- Centro Jambatu de Investigación y Conservación de AnfibiosQuitoEcuador
| | - Eva Ringler
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of BernHinterkappelenSwitzerland
- Messerli Research Institute, University of Veterinary Medicine ViennaViennaAustria
| | - Camilo Rodríguez
- Department of Behavioral and Cognitive Biology, University of ViennaViennaAustria
| | - Luis A Coloma
- Centro Jambatu de Investigación y Conservación de AnfibiosQuitoEcuador
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25
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Clark EI, Bitume EV, Bean DW, Stahlke AR, Hohenlohe PA, Hufbauer RA. Evolution of reproductive life‐history and dispersal traits during the range expansion of a biological control agent. Evol Appl 2022; 15:2089-2099. [DOI: 10.1111/eva.13502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 10/03/2022] [Indexed: 11/05/2022] Open
Affiliation(s)
- Eliza I. Clark
- Graduate Degree Program in Ecology, Department of Agricultural Biology Colorado State University Fort Collins Colorado USA
| | - Ellyn V. Bitume
- Pacific Southwest Research Station Institute of Pacific Islands Forestry, USDA Forest Service Hilo Hawaii USA
| | - Dan W. Bean
- Colorado Department of Agriculture Palisade Insectary Palisade Colorado USA
| | - Amanda R. Stahlke
- Initiative for Bioinformatics and Evolutionary Studies, Department of Biological Sciences University of Idaho Moscow Idaho USA
- Bee Research Laboratory USDA, Agricultural Research Service, Beltsville Agricultural Research Center Beltsville Maryland USA
| | - Paul A. Hohenlohe
- Initiative for Bioinformatics and Evolutionary Studies, Department of Biological Sciences University of Idaho Moscow Idaho USA
| | - Ruth A. Hufbauer
- Graduate Degree Program in Ecology, Department of Agricultural Biology Colorado State University Fort Collins Colorado USA
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26
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Population structure of threatened caribou in western Canada inferred from genome-wide SNP data. CONSERV GENET 2022. [DOI: 10.1007/s10592-022-01475-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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27
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Yaro AS, Linton YM, Dao A, Diallo M, Sanogo ZL, Samake D, Ousmane Y, Kouam C, Krajacich BJ, Faiman R, Bamou R, Woo J, Chapman JW, Reynolds DR, Lehmann T. Diversity, composition, altitude, and seasonality of high-altitude windborne migrating mosquitoes in the Sahel: Implications for disease transmission. FRONTIERS IN EPIDEMIOLOGY 2022; 2:1001782. [PMID: 38455321 PMCID: PMC10910920 DOI: 10.3389/fepid.2022.1001782] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 09/16/2022] [Indexed: 03/09/2024]
Abstract
Recent studies have reported Anopheles mosquitoes captured at high-altitude (40-290 m above ground) in the Sahel. Here, we describe this migration modality across genera and species of African Culicidae and examine its implications for disease transmission and control. As well as Anopheles, six other genera-Culex, Aedes, Mansonia, Mimomyia, Lutzia, and Eretmapodites comprised 90% of the 2,340 mosquitoes captured at altitude. Of the 50 molecularly confirmed species (N = 2,107), 33 species represented by multiple specimens were conservatively considered high-altitude windborne migrants, suggesting it is a common migration modality in mosquitoes (31-47% of the known species in Mali), and especially in Culex (45-59%). Overall species abundance varied between 2 and 710 specimens/species (in Ae. vittatus and Cx. perexiguus, respectively). At altitude, females outnumbered males 6:1, and 93% of the females have taken at least one blood meal on a vertebrate host prior to their departure. Most taxa were more common at higher sampling altitudes, indicating that total abundance and diversity are underestimated. High-altitude flight activity was concentrated between June and November coinciding with availability of surface waters and peak disease transmission by mosquitoes. These hallmarks of windborne mosquito migration bolster their role as carriers of mosquito-borne pathogens (MBPs). Screening 921 mosquitoes using pan-Plasmodium assays revealed that thoracic infection rate in these high-altitude migrants was 2.4%, providing a proof of concept that vertebrate pathogens are transported by windborne mosquitoes at altitude. Fourteen of the 33 windborne mosquito species had been reported as vectors to 25 MBPs in West Africa, which represent 32% of the MBPs known in that region and include those that inflict the heaviest burden on human and animal health, such as malaria, yellow fever, dengue, and Rift Valley fever. We highlight five arboviruses that are most likely affected by windborne mosquitoes in West Africa: Rift Valley fever, O'nyong'nyong, Ngari, Pangola, and Ndumu. We conclude that the study of windborne spread of diseases by migrating insects and the development of surveillance to map the sources, routes, and destinations of vectors and pathogens is key to understand, predict, and mitigate existing and new threats of public health.
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Affiliation(s)
- Alpha Seydou Yaro
- Malaria Research and Training Center (MRTC), Faculty of Medicine, Pharmacy and Odonto-Stomatology, Bamako, Mali
| | - Yvonne-Marie Linton
- Walter Reed Biosystematics Unit, Smithsonian Institution Museum Support Center, Suitland, MD, United States
- Department of Entomology, Smithsonian Institution, National Museum of Natural History, Washington, DC, United States
- One Health Branch, Walter Reed Army Institute of Research, Silver Spring, MD, United States
| | - Adama Dao
- Malaria Research and Training Center (MRTC), Faculty of Medicine, Pharmacy and Odonto-Stomatology, Bamako, Mali
| | - Moussa Diallo
- Malaria Research and Training Center (MRTC), Faculty of Medicine, Pharmacy and Odonto-Stomatology, Bamako, Mali
| | - Zana L. Sanogo
- Malaria Research and Training Center (MRTC), Faculty of Medicine, Pharmacy and Odonto-Stomatology, Bamako, Mali
| | - Djibril Samake
- Malaria Research and Training Center (MRTC), Faculty of Medicine, Pharmacy and Odonto-Stomatology, Bamako, Mali
| | - Yossi Ousmane
- Malaria Research and Training Center (MRTC), Faculty of Medicine, Pharmacy and Odonto-Stomatology, Bamako, Mali
| | - Cedric Kouam
- Laboratory of Malaria and Vector Research, NIAID, NIH, Rockville, MD, United States
| | | | - Roy Faiman
- Laboratory of Malaria and Vector Research, NIAID, NIH, Rockville, MD, United States
| | - Roland Bamou
- Laboratory of Malaria and Vector Research, NIAID, NIH, Rockville, MD, United States
| | - Joshua Woo
- Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, MD, United States
| | - Jason W. Chapman
- Centre for Ecology and Conservation, and Environment and Sustainability Institute, University of Exeter, Penryn, United Kingdom
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Don R. Reynolds
- Natural Resources Institute, University of Greenwich, Chatham, United Kingdom
- Rothamsted Research, Harpenden, United Kingdom
| | - Tovi Lehmann
- Laboratory of Malaria and Vector Research, NIAID, NIH, Rockville, MD, United States
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28
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Jreidini N, Green DM. Dispersal without drivers: Intrinsic and extrinsic variables have no impact on movement distances in a terrestrial amphibian. Ecol Evol 2022; 12:e9368. [PMID: 36203625 PMCID: PMC9526034 DOI: 10.1002/ece3.9368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 11/07/2022] Open
Abstract
Dispersive movements are often thought to be multicausal and driven by individual body size, sex, conspecific density, environmental variation, personality, and/or other variables. Yet such variables often do not account for most of the variation among dispersive movements in nature, leaving open the possibility that dispersion may be indeterministic. We assessed the amount of variation in 24 h movement distances that could be accounted for by potential drivers of displacement with a large empirical dataset of movement distances performed by Fowler's Toads (Anaxyrus fowleri) on the northern shore of Lake Erie at Long Point, Ontario (2002–2021, incl.). These toads are easy to sample repeatedly, can be identified individually and move parallel to the shoreline as they forage at night, potentially dispersing to new refuge sites. Using a linear mixed‐effect model that incorporated random effect terms to account for sampling variance and inter‐annual variation, we found that all potential intrinsic and extrinsic drivers of movement accounted for virtually none of the variation observed among 24 h distances moved by these animals, whether over short or large spatial scales. We examined the idea of movement personality by testing variance per individual toad and found no evidence of individuality in movement distances. We conclude that deterministic variables, whether intrinsic or extrinsic, neither can be shown to nor are necessary to drive movements in this population over all spatial scales. Stochastic, short time‐scale movements, such as daily foraging movements, can instead accumulate over time to produce large spatial‐scale movements that are dispersive in nature.
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Martínez-Pérez S, Galante E, Micó E. Sex specificity of dispersal behaviour and flight morphology varies among tree hollow beetle species. MOVEMENT ECOLOGY 2022; 10:41. [PMID: 36153610 PMCID: PMC9508746 DOI: 10.1186/s40462-022-00340-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Flight performance and dispersal behaviour can differ between sexes, resulting in sex-biased dispersal. The primary sex ratio of populations may also explain dispersal bias between sexes, as this bias may evolve with the primary sex ratio to reduce intrasexual competition. Although dispersal bias between sexes is relevant to population dynamics, there are few studies on sex-biased dispersal in insects. We studied the flight performance and dispersal behaviour of seven saproxylic beetle species associated with tree hollows from a sex perspective. We also analysed the possible coevolution of flight performance with the primary sex ratio. METHODS Wing loading and wing aspect ratio were used as measures of the flight performance of species and sexes. Dispersal behaviour was explored by analysing the frequency of each sex in interception traps versus the primary sex ratio obtained by tree hollow emergence traps using contingency tables and posthoc standardized residuals. A more active flight behaviour was expected for the sex with higher capture frequency in the interception traps. To explore the causes of flight performance bias between sexes, we searched for possible correlations between wing loading or wing aspect ratio and primary sex ratio using Pearson's correlation coefficient. RESULTS Wing loading and wing aspect ratio differed between species and sexes, with flight performance being higher in males than in females for four of the seven species analysed. Dispersal behaviour and flight performance matched in the case of Elater ferrugineus; males showed higher flight performance and were the most collected sex in the interception traps (more active flyers). In contrast, the higher flight activity of Cetonia carthami aurataeformis females was not correlated with a higher flight performance than that of males. Moreover, we found that a bias in the primary sex ratio towards females is often correlated with a decrease in female flight performance. CONCLUSIONS We stress that flight performance and dispersal behaviour of sexes do not always go hand in hand. Moreover, the relationship between the sex ratio and flight performance bias between sexes is not driven by competition within the most abundant sex. The inclusion of a sex perspective in insect dispersal studies would be useful to detect dispersal bias between sexes and its causes and would allow for further analysis of its effects on population dynamics.
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Affiliation(s)
- Sandra Martínez-Pérez
- Instituto de Investigación CIBIO (Centro Iberoamericano de la Biodiversidad), Universidad de Alicante, 03690, San Vicente del Raspeig, Alicante, Spain.
| | - Eduardo Galante
- Instituto de Investigación CIBIO (Centro Iberoamericano de la Biodiversidad), Universidad de Alicante, 03690, San Vicente del Raspeig, Alicante, Spain
| | - Estefanía Micó
- Instituto de Investigación CIBIO (Centro Iberoamericano de la Biodiversidad), Universidad de Alicante, 03690, San Vicente del Raspeig, Alicante, Spain
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30
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Martínez-Laiz G, MacLeod CD, Hesketh AV, Konecny CA, Ros M, Guerra-García JM, Harley CDG. The journey of hull-fouling mobile invaders: basibionts and boldness mediate dislodgement risk during transit. BIOFOULING 2022; 38:837-851. [PMID: 36317602 DOI: 10.1080/08927014.2022.2138754] [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: 05/17/2022] [Revised: 10/06/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Vessel hull-fouling is responsible for most bioinvasion events in the marine environment, yet it lacks regulation in most countries. Although experts advocate a preventative approach, research efforts on pre-arrival processes are limited. The performance of mobile epifauna during vessel transport was evaluated via laboratory simulations, using the well-known invasive Japanese skeleton shrimp (Caprella mutica), and its native congener C. laeviuscula as case study. The invader did not possess any advantage in terms of inherent resistance to drag. Instead, its performance was conditioned by the complexity of secondary substrate. Dislodgement risk was significantly reduced when sessile fouling basibionts were added, which provided refugia and boosted the probability of C. mutica remaining attached from 7 to 65% in flow exposure trials. Interestingly, the invader exhibited significantly higher exploratory tendency and motility than its native congener at zero-flow conditions. Implications in terms of en-route survivorship, invasion success and macrofouling management are discussed.
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Affiliation(s)
- Gemma Martínez-Laiz
- Laboratory of Marine Biology, Department of Zoology, University of Seville, Seville, Spain
| | - Colin D MacLeod
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
| | - Amelia V Hesketh
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
| | - Cassandra A Konecny
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC, Canada
| | - Macarena Ros
- Laboratory of Marine Biology, Department of Zoology, University of Seville, Seville, Spain
- Department of Biology, CASEM, University of Cadiz, Puerto Real, Spain
| | - José M Guerra-García
- Laboratory of Marine Biology, Department of Zoology, University of Seville, Seville, Spain
| | - Christopher D G Harley
- Department of Zoology, University of British Columbia, Vancouver, BC, Canada
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC, Canada
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Should I stay or should I go now: dispersal decisions and reproductive success in male white-faced capuchins (Cebus imitator). Behav Ecol Sociobiol 2022. [DOI: 10.1007/s00265-022-03197-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Iglesias-Carrasco M, Wong BBM, Jennions MD. In the shadows: wildlife behaviour in tree plantations. Trends Ecol Evol 2022; 37:838-850. [PMID: 35710479 DOI: 10.1016/j.tree.2022.05.008] [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: 08/25/2021] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 10/18/2022]
Abstract
Destruction of natural habitats for tree plantations is a major threat to wildlife. These novel environments elicit behavioural changes that can either be detrimental or beneficial to survival and reproduction, with population - and community - level consequences. However, compared with well-documented changes following other forms of habitat modification, we know little about wildlife behavioural responses to tree plantations, and even less about their associated fitness costs. Here, we highlight critical knowledge gaps in understanding the ecological and evolutionary consequences of behavioural shifts caused by tree plantations and discuss how wildlife responses to plantations could be critical in determining which species persist in these highly modified environments.
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33
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Aceves-Fonseca E, Santiago-Arellano A, Camacho-Cervantes M. Sex, size and habitat complexity effects on emergence latency and latency to locate food of the invasive porthole livebearer (Poeciliopsis gracilis). PLoS One 2022; 17:e0269384. [PMID: 35679286 PMCID: PMC9182249 DOI: 10.1371/journal.pone.0269384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 05/19/2022] [Indexed: 11/19/2022] Open
Abstract
Biological invasions are considered the second major cause of plant, amphibian, reptile, and mammal loss worldwide. Like islands, freshwater ecosystems are especially susceptible to the negative impacts of invasions. The porthole livebearer (Poeciliopsis gracilis), recently identified as invasive in the Mexican Central Plateau, is increasing its populations and could impact freshwater ecosystems like its cousin species the guppy (Poecilia reticulata). Risk-taking behaviours, such as emergence latency, are recognised as key characteristics to invasion success and Poeciliid females can establish a viable population by themselves (due to their multiple paternity broods). We investigated the emergence latency and latency to locate food in simple and complex environments of porthole livebearers, including the effect of their size and sex. For both sexes, bigger fish emerge less times and take longer to do so, but females are faster to exit the refuge than males. We found no differences in porthole livebearer’s behaviour in complex or simple habitats, and no significant differences between sex, size or treatment in the time to locate food after exiting the refuge. Our results suggest that the benefit of faster emergence from the refuge in porthole livebearers in novel environments could be higher for females. We consider that porthole livebearer females being bolder could contribute to the invasion success of the species. Our study points at females and smaller fish as being the more likely to explore novel environments, which could contribute to understanding how the invasions by the porthole livebearer are driven.
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Affiliation(s)
- Esteban Aceves-Fonseca
- Laboratorio de Ecología de Especies Invasoras, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México (UNAM), Coyoacán, Ciudad de México, México
| | - Abigail Santiago-Arellano
- Laboratorio de Ecología de Especies Invasoras, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México (UNAM), Coyoacán, Ciudad de México, México
| | - Morelia Camacho-Cervantes
- Laboratorio de Ecología de Especies Invasoras, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México (UNAM), Coyoacán, Ciudad de México, México
- * E-mail:
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Zi S, Gao L, Chen X, Wang Q, Liu F, Li J, Du B. Responses of a resident group to an outsider in the blue-breasted quail: a paradigm for studying social resettlement of dispersers. Curr Zool 2022. [DOI: 10.1093/cz/zoac041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Dispersal is an individual life history trait that can influence the ecological and evolutionary dynamics of both the source and recipient populations. Current studies of animal dispersal have paid little attention to how the responses of residents in a recipient population affect the social resettlement of dispersers into a new habitat. We addressed this question in the blue-breasted quail Synoicus chinensis by designing an outsider introduction experiment to simulate a scenario of interaction between residents and dispersers. In the experiment, we introduced an unfamiliar quail into a group of three differently ranked residents and then examined their behavioral responses to the arrival of the outsider. We found that all residents made negative responses by pecking at the outsider to maintain their pecking order, in which high-ranked residents displayed significantly greater intensity than those of lower ranks. This result highlighted that adverse behavioral responses of residents would prevent outsiders from obtaining hierarchical dominance in the recipient group. Moreover, the residents’ sex ratio, their relative ages to the outsiders, and whether outsiders counter-pecked at the residents all influenced the probability of outsiders prevailing against the residents. Those outsiders that displayed counter-peck courage were more likely to gain higher dominance and hence resettle into the recipient group successfully. Our findings suggest that resident groups may impose a selection among dispersers via adverse behavioral responses. Therefore, social factors that can influence the resettlement step of dispersers in a new habitat should be accounted for in future studies of animal dispersal.
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Affiliation(s)
- Shumei Zi
- College of Ecology, Lanzhou University, Lanzhou City 730000, Gansu, China
| | - Lifang Gao
- School of Life Sciences, Lanzhou University, Lanzhou City 730000, Gansu, China
| | - Xiaoxue Chen
- Cuiying Honors College, Lanzhou University, Lanzhou City 730000, Gansu, China
| | - Qian Wang
- School of Life Sciences, Lanzhou University, Lanzhou City 730000, Gansu, China
| | - Fangyuan Liu
- School of Life Sciences, Lanzhou University, Lanzhou City 730000, Gansu, China
| | - Jianchuan Li
- Tibet Museum of Natural Science, Lhasa City 850000, Tibet Autonomous Region, China
| | - Bo Du
- School of Life Sciences, Lanzhou University, Lanzhou City 730000, Gansu, China
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Morris-Drake A, Kennedy P, Braga Goncalves I, Radford AN. Variation between species, populations, groups and individuals in the fitness consequences of out-group conflict. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210148. [PMID: 35369741 PMCID: PMC8977661 DOI: 10.1098/rstb.2021.0148] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Out-group conflict is rife in the natural world, occurring from primates to ants. Traditionally, research on this aspect of sociality has focused on the interactions between groups and their conspecific rivals, investigating contest function and characteristics, which group members participate and what determines who wins. In recent years, however, there has been increasing interest in the consequences of out-group conflict. In this review, we first set the scene by outlining the fitness consequences that can arise immediately to contest participants, as well as a broader range of delayed, cumulative and third-party effects of out-group conflict on survival and reproductive success. For the majority of the review, we then focus on variation in these fitness consequences of out-group conflict, describing known examples both between species and between populations, groups and individuals of the same species. Throughout, we suggest possible reasons for the variation, provide examples from a diverse array of taxa, and suggest what is needed to advance this burgeoning area of social evolution. This article is part of the theme issue 'Intergroup conflict across taxa'.
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Affiliation(s)
- Amy Morris-Drake
- School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Patrick Kennedy
- School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Ines Braga Goncalves
- School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Andrew N Radford
- School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
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36
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Pogány Á, Krause ET, Roth O, Bókony V. Editorial: The Development and Fitness Consequences of Sex Roles. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.912520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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37
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Palejowski H, Bylemans J, Ammann V, Marques da Cunha L, Nusbaumer D, Castro I, Uppal A, Mobley KB, Knörr S, Wedekind C. Sex-Specific Life History Affected by Stocking in Juvenile Brown Trout. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.869925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Salmonids are a socioeconomically and ecologically important group of fish that are often managed by stocking. Little is known about potential sex-specific effects of stocking, but recent studies found that the sexes differ in their stress tolerances already at late embryonic stage, i.e., before hatchery-born larvae are released into the wild and long before morphological gonad formation. It has also been speculated that sex-specific life histories can affect juvenile growth and mortality, and that a resulting sex-biassed demography can reduce population growth. Here we test whether juvenile brown trout (Salmo trutta) show sex-specific life histories and whether such sex effects differ in hatchery- and wild-born fish. We modified a genetic sexing protocol to reduce false assignment rates and used it to study the timing of sex differentiation in a laboratory setting, and in a large-scale field experiment to study growth and mortality of hatchery- and wild-born fish in different environments. We found no sex-specific mortality in any of the environments we studied. However, females started sex differentiation earlier than males, and while growth rates were similar in the laboratory, they differed significantly in the field depending on location and origin of fish. Overall, hatchery-born males grew larger than hatchery-born females while wild-born fish showed the reverse pattern. Whether males or females grew larger was location-specific. We conclude that juvenile brown trout show sex-specific growth that is affected by stocking and by other environmental factors that remain to be identified.
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Giuntini S, Pedruzzi L. Sex and the patch: the influence of habitat fragmentation on terrestrial vertebrates’ mating strategies. ETHOL ECOL EVOL 2022. [DOI: 10.1080/03949370.2022.2059787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Silvia Giuntini
- Dipartimento di Biologia, Università di Pisa, Via Alessandro Volta 6, Pisa 56126, Italy
- Environmental Analysis and Management Unit, Guido Tosi Research Group, Department of Theoretical and Applied Sciences, Università degli Studi dell’Insubria, Varese, Italy
| | - Luca Pedruzzi
- Dipartimento di Biologia, Università di Pisa, Via Alessandro Volta 6, Pisa 56126, Italy
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Bose APH, Koch L, Dabernig-Heinz J, Grimm J, Sefc KM, Jordan A. Patterns of sex-biased dispersal are consistent with social and ecological constraints in a group-living cichlid fish. BMC Ecol Evol 2022; 22:21. [PMID: 35236283 PMCID: PMC8889715 DOI: 10.1186/s12862-022-01980-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 02/21/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Sex-biased dispersal is a common and widespread phenomenon that can fundamentally shape the genetic structure of the social environments in which animals live. For animals that live in and move between social groups, sex-biased dispersal can result in an asymmetry in the degree of relatedness among cohabiting males and females, which can have strong implications for their social evolution. In this study, we measured the relatedness structure within and across groups of a wild population of Neolamprologus multifasciatus, a highly-social, shell-dwelling cichlid fish endemic to Lake Tanganyika, East Africa. In total, we genotyped 812 fish from 128 social groups at 20 microsatellite loci. Neolamprologus multifasciatus live at high densities, and also experience strong ecological constraints on free movement throughout their habitat. At the same time, they exhibit sex differences in the degree of reproductive competition within their groups and this makes them an excellent model system for studying the factors associated with sex-biased dispersal. RESULTS Social groups of N. multifasciatus consist of multiple males and females living together. We found that cohabiting females were unrelated to one another (Lynch-Ritland estimates of relatedness = 0.045 ± 0.15, average ± SD), while males shared much higher, albeit variable, levels of relatedness to other males in their groups (0.23 ± 0.27). We uncovered a pronounced decline in relatedness between males living in separate groups as the spatial separation between them increased, a pattern that was not evident in females. Female dispersal was also markedly constrained by the distribution and availability of nearby territories to which they could emigrate. CONCLUSIONS Our results indicate female-biased dispersal in N. multifasciatus. Our study also highlights how the spatial distribution of suitable dispersal destinations can influence the movement decisions of animals. We also emphasize how sex-biased dispersal can influence the relatedness structure of the social environment in which individuals interact and compete with one another.
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Affiliation(s)
- Aneesh P H Bose
- Department of Collective Behaviour, Max Planck Institute of Animal Behavior, Konstanz, Germany.
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany.
- Department of Biology, University of Konstanz, Konstanz, Germany.
| | - Lukas Koch
- Department of Collective Behaviour, Max Planck Institute of Animal Behavior, Konstanz, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
| | | | | | | | - Alex Jordan
- Department of Collective Behaviour, Max Planck Institute of Animal Behavior, Konstanz, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany
- Department of Biology, University of Konstanz, Konstanz, Germany
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40
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Wild KH, Roe JH, Schwanz L, Georges A, Sarre SD. Evolutionary stability inferred for a free ranging lizard with sex-reversal. Mol Ecol 2022; 31:2281-2292. [PMID: 35178809 PMCID: PMC9303591 DOI: 10.1111/mec.16404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/02/2022] [Accepted: 02/11/2022] [Indexed: 11/17/2022]
Abstract
The sex of vertebrates is typically determined genetically, but reptile sex can also be determined by developmental temperature. In some reptiles, temperature interacts with genotype to reverse sex, potentially leading to transitions from a chromosomal to a temperature‐dependent sex determining system. Transitions between such systems in nature are accelerated depending on the frequency and fitness of sex‐reversed individuals. The Central Bearded Dragon, Pogona vitticeps, exhibits female heterogamety (ZZ/ZW) but can have its sex reversed from ZZ male to ZZ female by high incubation temperatures. The species exhibits sex‐reversal in the wild and it has been suggested that climate change and fitness of sex‐reversed individuals could be increasing the frequency of reversal within the species range. Transitions to temperature‐dependent sex determination require low levels of dispersal and high (>50%) rates of sex‐reversal. Here, we combine genotype‐by‐sequencing, identification of phenotypic and chromosomal sex, exhaustive field surveys, and radio telemetry to examine levels of genetic structure, rates of sex‐reversal, movement, space use, and survival of P. vitticeps in a location previously identified as a hot spot for sex‐reversal. We find that the species exhibits low levels of population structure (FST ~0.001) and a modest (~17%) rate of sex‐reversal, and that sex‐reversed and nonsex‐reversed females have similar survival and behavioural characteristics to each other. Overall, our data indicate this system is evolutionary stable, although we do not rule out the prospect of a more gradual transition in sex‐determining mechanisms in the future in a more fragmented landscape and as global temperatures increase.
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Affiliation(s)
- Kristoffer H Wild
- Centre for Conservation Ecology and Genomics, Institute for Applied Ecology, University of Canberra, Canberra, ACT, Australia
| | - John H Roe
- Department of Biology, University of North Carolina Pembroke, Pembroke, North Carolina, USA
| | - Lisa Schwanz
- Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Arthur Georges
- Centre for Conservation Ecology and Genomics, Institute for Applied Ecology, University of Canberra, Canberra, ACT, Australia
| | - Stephen D Sarre
- Centre for Conservation Ecology and Genomics, Institute for Applied Ecology, University of Canberra, Canberra, ACT, Australia
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Patchett R, Styles P, Robins King J, Kirschel ANG, Cresswell W. The potential function of post-fledging dispersal behavior in first breeding territory selection for males of a migratory bird. Curr Zool 2022; 68:708-715. [PMID: 36743231 PMCID: PMC9892789 DOI: 10.1093/cz/zoac002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 01/12/2022] [Indexed: 02/07/2023] Open
Abstract
One possible hypothesis for the function of post-fledging dispersal is to locate a suitable future breeding area. This post-fledging period may be particularly important in migratory species because they have a limited period to gather information prior to autumn migration, and in protandrous species, males must quickly acquire a territory after returning from spring migration to maximize their fitness. Here we use color-ring resightings to investigate how the post-fledging dispersal movements of the Cyprus wheatear Oenanthe cypriaca, a small migratory passerine, relate to their first breeding territory the following year when they return from migration. We found that males established first breeding territories that were significantly closer to their post-fledging location than to their natal sites or to post-fledging locations of other conspecifics, but these patterns were not apparent in females. Our findings suggest that familiarity with potential breeding sites may be important for juveniles of migratory species, particularly for the sex that acquires and advertises breeding territories. Exploratory dispersal prior to a migrant's first autumn migration may contribute toward its breeding success the following year, further highlighting the importance of early seasonal breeding on fitness and population dynamics more generally.
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Affiliation(s)
| | - Patrick Styles
- Centre for Biological Diversity, University of St Andrews, St Andrews, KY16 9TH, UK
| | - Joanna Robins King
- Centre for Biological Diversity, University of St Andrews, St Andrews, KY16 9TH, UK
| | | | - Will Cresswell
- Centre for Biological Diversity, University of St Andrews, St Andrews, KY16 9TH, UK
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Somers J, Georgiades M, Su MP, Bagi J, Andrés M, Alampounti A, Mills G, Ntabaliba W, Moore SJ, Spaccapelo R, Albert JT. Hitting the right note at the right time: Circadian control of audibility in Anopheles mosquito mating swarms is mediated by flight tones. SCIENCE ADVANCES 2022; 8:eabl4844. [PMID: 35020428 PMCID: PMC8754303 DOI: 10.1126/sciadv.abl4844] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/12/2021] [Indexed: 05/20/2023]
Abstract
Mating swarms of malaria mosquitoes form every day at sunset throughout the tropical world. They typically last less than 30 minutes. Activity must thus be highly synchronized between the sexes. Moreover, males must identify the few sporadically entering females by detecting the females’ faint flight tones. We show that the Anopheles circadian clock not only ensures a tight synchrony of male and female activity but also helps sharpen the males’ acoustic detection system: By raising their flight tones to 1.5 times the female flight tone, males enhance the audibility of females, specifically at swarm time. Previously reported “harmonic convergence” events are only a random by-product of the mosquitoes’ flight tone variance and not a signature of acoustic interaction between males and females. The flight tones of individual mosquitoes occupy narrow, partly non-overlapping frequency ranges, suggesting that the audibility of individual females varies across males.
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Affiliation(s)
- Jason Somers
- Ear Institute, University College London, 332 Grays Inn Road, London WC1X 8EE, UK
- Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Marcos Georgiades
- Ear Institute, University College London, 332 Grays Inn Road, London WC1X 8EE, UK
- Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Matthew P. Su
- Ear Institute, University College London, 332 Grays Inn Road, London WC1X 8EE, UK
- Division of Biological Science, Nagoya University, Nagoya, Aichi 464-8602, Japan
- Institute for Advanced Research, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Judit Bagi
- Ear Institute, University College London, 332 Grays Inn Road, London WC1X 8EE, UK
- Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Marta Andrés
- Ear Institute, University College London, 332 Grays Inn Road, London WC1X 8EE, UK
- Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Alexandros Alampounti
- Ear Institute, University College London, 332 Grays Inn Road, London WC1X 8EE, UK
- Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
| | - Gordon Mills
- Ear Institute, University College London, 332 Grays Inn Road, London WC1X 8EE, UK
| | - Watson Ntabaliba
- Vector Control Product Testing Unit, Ifakara Health Institute, Ifakara, Tanzania
| | - Sarah J. Moore
- Vector Control Product Testing Unit, Ifakara Health Institute, Ifakara, Tanzania
- Epidemiology and Public Health Department, Swiss Tropical and Public Health Institute, Socinstrasse 57, Basel 4051, Switzerland
| | - Roberta Spaccapelo
- Department of Medicine and Surgery, Centro Universitario di Ricerca sulla Genomica Funzionale (C.U.R.Ge.F), University of Perugia, Perugia, Italy
- Consorzio Interuniversitario Biotecnologie (CIB) Trieste, Italy
| | - Joerg T. Albert
- Ear Institute, University College London, 332 Grays Inn Road, London WC1X 8EE, UK
- Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK
- Corresponding author.
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Mechanisms of dispersal and colonisation in a wind-borne cereal pest, the haplodiploid wheat curl mite. Sci Rep 2022; 12:551. [PMID: 35017605 PMCID: PMC8752673 DOI: 10.1038/s41598-021-04525-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/17/2021] [Indexed: 11/08/2022] Open
Abstract
Dispersal and colonisation determine the survival and success of organisms, and influence the structure and dynamics of communities and ecosystems in space and time. Both affect the gene flow between populations, ensuring sufficient level of genetic variation and improving adaptation abilities. In haplodiploids, such as Aceria tosichella (wheat curl mite, WCM), a population may be founded even by a single unfertilised female, so there is a risk of heterozygosity loss (i.e. founder effect). It may lead to adverse outcomes, such as inbreeding depression. Yet, the strength of the founder effect partly depends on the genetic variation of the parental population. WCM is an economically important pest with a great invasive potential, but its dispersal and colonisation mechanisms were poorly studied before. Therefore, here we assessed WCM dispersal and colonisation potential in relation to the genetic variation of the parental population. We checked whether this potential may be linked to specific pre-dispersal actions (e.g. mating before dispersal and collective behaviour). Our study confirms that dispersal strategies of WCM are not dependent on heterozygosity in the parental population, and the efficient dispersal of this species depends on collective movement of fertilised females.
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44
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Ji T, Zhang H, Pagel M, Mace R. A phylogenetic analysis of dispersal norms, descent and subsistence in Sino-Tibetans. EVOL HUM BEHAV 2022. [DOI: 10.1016/j.evolhumbehav.2021.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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45
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Kwon E, Valcu M, Cragnolini M, Bulla M, Lyon B, Kempenaers B. OUP accepted manuscript. Behav Ecol 2022; 33:592-605. [PMID: 35592879 PMCID: PMC9113309 DOI: 10.1093/beheco/arac014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 12/14/2021] [Accepted: 01/28/2022] [Indexed: 11/12/2022] Open
Abstract
Sex-bias in breeding dispersal is considered the norm in many taxa, and the magnitude and direction of such sex-bias is expected to correlate with the social mating system. We used local return rates in shorebirds as an index of breeding site fidelity, and hence as an estimate of the propensity for breeding dispersal, and tested whether variation in site fidelity and in sex-bias in site fidelity relates to the mating system. Among 111 populations of 49 species, annual return rates to a breeding site varied between 0% and 100%. After controlling for body size (linked to survival) and other confounding factors, monogamous species showed higher breeding site fidelity compared with polyandrous and polygynous species. Overall, there was a strong male bias in return rates, but the sex-bias in return rate was independent of the mating system and did not covary with the extent of sexual size dimorphism. Our results bolster earlier findings that the sex-biased dispersal is weakly linked to the mating system in birds. Instead, our results show that return rates are strongly correlated with the mating system in shorebirds regardless of sex. This suggests that breeding site fidelity may be linked to mate fidelity, which is only important in the monogamous, biparentally incubating species, or that the same drivers influence both the mating system and site fidelity. The strong connection between site fidelity and the mating system suggests that variation in site fidelity may have played a role in the coevolution of the mating system, parental care, and migration strategies.
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Affiliation(s)
- Eunbi Kwon
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
- Address correspondence to E. Kwon. E-mail:
| | - Mihai Valcu
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
| | - Margherita Cragnolini
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
| | - Martin Bulla
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
- Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic
| | - Bruce Lyon
- Department of Ecology and Evolutionary Biology, University of California, 130 McAllister Way, Santa Cruz, CA 95060, USA
| | - Bart Kempenaers
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
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46
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Mendonça AF, Vieira EM. Moving far from water: unusual dispersal movement of the water opossum (Chironectes minimus: Didelphimorphia, Didelphidae) in central Brazil. BIOTA NEOTROPICA 2022. [DOI: 10.1590/1676-0611-bn-2021-1301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract: Unusual movements of an animal can potentially represent a dispersal event. A higher frequency of young males dispersing is a pattern observed for most part of polygynous or promiscuous mammals with these dispersion events occurring, mainly, before or at the beginning of the breeding season. The water opossum (Chironectes minimus), the only marsupial adapted for semi-aquatic life, occurs from Mexico to Argentina and it has been mostly described as a sensitive species to river and riparian vegetation degradation, occurring exclusively near water curses. Here we describe the first record of long-distance movement of a water opossum not associated with riverine vegetation through dry land. We captured a healthy adult male of C. minimus in July 2012 beside of a highway (DF-001) located 1,100 m from nearest gallery forest in the Federal District. The region is characterized by urban and suburban residential, small fragments of typical savanna and degraded gallery forests. Our unique record could be an event of dispersion through degraded dry lands as observed for other semi-aquatic mammals and also suggests that this species is more resistant to anthropogenic disturbances than previously described. Also, information about dispersal patterns of water opossum is scarce and may contributes to a deeper understanding of ecological requirements of this species.
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Bagchi B, Seal S, Raina M, Basu DN, Khan I. Carcass Scavenging Relaxes Chemical-Driven Female Interference Competition in Flour Beetles. Am Nat 2022; 199:E1-E14. [DOI: 10.1086/717250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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48
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Narimanov N, Bonte D, Entling MH. Heritability of dispersal in a rapidly spreading invasive spider. Anim Behav 2022. [DOI: 10.1016/j.anbehav.2021.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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49
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Mishra A, Tung S, Sruti VS, Shreenidhi P, Dey S. Desiccation stress acts as cause as well as cost of dispersal in Drosophila melanogaster. Am Nat 2021; 199:E111-E123. [DOI: 10.1086/718641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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50
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Ausband DE. Inherit the kingdom or storm the castle? Breeding strategies in a social carnivore. Ethology 2021. [DOI: 10.1111/eth.13250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- David E. Ausband
- U.S. Geological Survey Idaho Cooperative Fish and Wildlife Research Unit University of Idaho Moscow Idaho USA
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