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Lucon-Xiccato T. Inhibitory control in teleost fish: a methodological and conceptual review. Anim Cogn 2024; 27:27. [PMID: 38530456 DOI: 10.1007/s10071-024-01867-5] [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: 07/11/2023] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024]
Abstract
Inhibitory control (IC) plays a central role in behaviour control allowing an individual to resist external lures and internal predispositions. While IC has been consistently investigated in humans, other mammals, and birds, research has only recently begun to explore IC in other vertebrates. This review examines current literature on teleost fish, focusing on both methodological and conceptual aspects. I describe the main paradigms adopted to study IC in fish, identifying well-established tasks that fit various research applications and highlighting their advantages and limitations. In the conceptual analysis, I identify two well-developed lines of research with fish examining IC. The first line focuses on a comparative approach aimed to describe IC at the level of species and to understand the evolution of interspecific differences in relation to ecological specialisation, brain size, and factors affecting cognitive performance. Findings suggest several similarities between fish and previously studied vertebrates. The second line of research focuses on intraspecific variability of IC. Available results indicate substantial variation in fish IC related to sex, personality, genetic, age, and phenotypic plasticity, aligning with what is observed with other vertebrates. Overall, this review suggests that although data on teleosts are still scarce compared to mammals, the contribution of this group to IC research is already substantial and can further increase in various disciplines including comparative psychology, cognitive ecology, and neurosciences, and even in applied fields such as psychiatry research.
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Affiliation(s)
- Tyrone Lucon-Xiccato
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.
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2
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Cones AG, Schneider ER, Westneat DF. The incubation environment does not explain significant variation in heart rate plasticity among avian embryos. J Exp Biol 2024; 227:jeb247120. [PMID: 38456553 PMCID: PMC10949066 DOI: 10.1242/jeb.247120] [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: 12/04/2023] [Accepted: 01/29/2024] [Indexed: 03/09/2024]
Abstract
The conditions an organism experiences during development can modify how they plastically respond to short-term changes in their environment later in life. This can be adaptive because the optimal average trait value and the optimal plastic change in trait value in response to the environment may differ across different environments. For example, early developmental temperatures can adaptively modify how reptiles, fish and invertebrates metabolically respond to temperature. However, whether individuals within populations respond differently (a prerequisite to adaptive evolution), and whether this occurs in birds, which are only ectothermic for part of their life cycle, is not known. We experimentally tested these possibilities by artificially incubating the embryos of Pekin ducks (Anas platyrhynchos domesticus) at constant or variable temperatures. We measured their consequent heart rate reaction norms to short-term changes in egg temperature and tracked their growth. Contrary to expectations, the early thermal environment did not modify heart rate reaction norms, but regardless, these reaction norms differed among individuals. Embryos with higher average heart rates were smaller upon hatching, but heart rate reaction norms did not predict subsequent growth. Our data also suggests that the thermal environment may affect both the variance in heart rate reaction norms and their covariance with growth. Thus, individual avian embryos can vary in their plasticity to temperature, and in contrast to fully ectothermic taxa, the early thermal environment does not explain this variance. Because among-individual variation is one precondition to adaptive evolution, the factors that do contribute to such variability may be important.
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Affiliation(s)
- Alexandra G. Cones
- Department of Biology, University of Kentucky, 101 Thomas Hunt Morgan Building, Lexington, KY 40506, USA
| | - Eve R. Schneider
- Department of Biology, University of Kentucky, 101 Thomas Hunt Morgan Building, Lexington, KY 40506, USA
| | - David F. Westneat
- Department of Biology, University of Kentucky, 101 Thomas Hunt Morgan Building, Lexington, KY 40506, USA
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3
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Nishiura N, Kaneko K. Evolution of phenotypic fluctuation under host-parasite interactions. PLoS Comput Biol 2021; 17:e1008694. [PMID: 34752445 PMCID: PMC8604345 DOI: 10.1371/journal.pcbi.1008694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 11/19/2021] [Accepted: 10/19/2021] [Indexed: 11/24/2022] Open
Abstract
Robustness and plasticity are essential features that allow biological systems to cope with complex and variable environments. In a constant environment, robustness, i.e., insensitivity of phenotypes, is expected to increase, whereas plasticity, i.e., the changeability of phenotypes, tends to diminish. Under a variable environment, existence of plasticity will be relevant. The robustness and plasticity, on the other hand, are related to phenotypic variances. As phenotypic variances decrease with the increase in robustness to perturbations, they are expected to decrease through the evolution. However, in nature, phenotypic fluctuation is preserved to a certain degree. One possible cause for this is environmental variation, where one of the most important “environmental” factors will be inter-species interactions. As a first step toward investigating phenotypic fluctuation in response to an inter-species interaction, we present the study of a simple two-species system that comprises hosts and parasites. Hosts are expected to evolve to achieve a phenotype that optimizes fitness. Then, the robustness of the corresponding phenotype will be increased by reducing phenotypic fluctuations. Conversely, plasticity tends to evolve to avoid certain phenotypes that are attacked by parasites. By using a dynamic model of gene expression for the host, we investigate the evolution of the genotype-phenotype map and of phenotypic variances. If the host–parasite interaction is weak, the fittest phenotype of the host evolves to reduce phenotypic variances. In contrast, if there exists a sufficient degree of interaction, the phenotypic variances of hosts increase to escape parasite attacks. For the latter case, we found two strategies: if the noise in the stochastic gene expression is below a certain threshold, the phenotypic variance increases via genetic diversification, whereas above this threshold, it is increased mediated by noise-induced phenotypic fluctuation. We examine how the increase in the phenotypic variances caused by parasite interactions influences the growth rate of a single host, and observed a trade-off between the two. Our results help elucidate the roles played by noise and genetic mutations in the evolution of phenotypic fluctuation and robustness in response to host–parasite interactions. Plasticity and phenotypic variability induced by internal or external perturbations are common features of biological systems. However, under evolution for given environmental conditions, phenotypic variability is not advantageous, because it leads to the deviation from the fittest state. This has been demonstrated by previous laboratory and computer experiments. As a possible origin for the remnant phenotypic variance, we investigated the role of host–parasite interactions such as those between bacteria and phages. Different parasite-types attack hosts of certain phenotypes. Through numerical simulations of the evolution of the host genotype–phenotype mapping, we found that hosts increase phenotypic variation by increasing phenotypic fluctuations if the interaction is sufficiently strong. Depending on the degree of noise in gene expression dynamics, there are two distinct strategies for increasing phenotypic variances: stochasticity in gene expression or genetic variances. The former strategy, which can work over a faster time scale, leads to a decline in fitness, whereas the latter reduces the robustness of the fitted state. Our results provide insights into how phenotypic variances are preserved and how hosts can escape being attacked by parasites whose genes mutate to adapt to changes in parasites. These two host strategies, which depend on internal and external conditions, can be verified experimentally via the transcriptome analysis of microorganisms.
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Affiliation(s)
- Naoto Nishiura
- Department of Basic Science, Graduate School of Arts and Sciences, University of Tokyo, Tokyo, Japan
| | - Kunihiko Kaneko
- Department of Basic Science, Graduate School of Arts and Sciences, University of Tokyo, Tokyo, Japan
- Center for Complex Systems Biology, Universal Biology Institute, University of Tokyo, Tokyo, Japan
- * E-mail:
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Almeida DA, Mappes J, Gordon S. Predator-Induced Plasticity on Warning Signal and Larval Life-History Traits of the Aposematic Wood Tiger Moth, Arctia plantaginis. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.658177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Predator-induced plasticity in life-history and antipredator traits during the larval period has been extensively studied in organisms with complex life-histories. However, it is unclear whether different levels of predation could induce warning signals in aposematic organisms. Here, we investigated whether predator-simulated handling affects warning coloration and life-history traits in the aposematic wood tiger moth larva, Arctia plantaginis. As juveniles, a larger orange patch on an otherwise black body signifies a more efficient warning signal against predators but this comes at the costs of conspicuousness and thermoregulation. Given this, one would expect that an increase in predation risk would induce flexible expression of the orange patch. Prior research in this system points to plastic effects being important as a response to environmental changes for life history traits, but we had yet to assess whether this was the case for predation risk, a key driver of this species evolution. Using a full-sib rearing design, in which individuals were reared in the presence and absence of a non-lethal simulated bird attack, we evaluated flexible responses of warning signal size (number of orange segments), growth, molting events, and development time in wood tiger moths. All measured traits except development time showed a significant response to predation. Larvae from the predation treatment developed a more melanized warning signal (smaller orange patch), reached a smaller body size, and molted more often. Our results suggest plasticity is indeed important in aposematic organisms, but in this case may be complicated by the trade-off between costly pigmentation and other life-history traits.
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Rabier R, Lesobre L, Robert A. Reproductive performance in houbara bustard is affected by the combined effects of age, inbreeding and number of generations in captivity. Sci Rep 2021; 11:7813. [PMID: 33837276 PMCID: PMC8035203 DOI: 10.1038/s41598-021-87436-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/30/2021] [Indexed: 11/16/2022] Open
Abstract
Although captive breeding programs are valuable for conservation, they have been shown to be associated with genetic changes, such as adaptation to captivity or inbreeding. In addition, reproductive performance is strongly age-dependent in most animal species. These mechanisms that potentially impact reproduction have often been studied separately, while their interactions have rarely been addressed. In this study, using a large dataset of nine male and female reproductive parameters measured for 12,295 captive houbara bustards (Chlamydotis undulata undulata) over 24 years, we investigated the relative and interactive effects of age, inbreeding and number of generations in captivity on reproduction. We clearly identified (1) senescence patterns in all parameters studied; (2) negative effects of inbreeding on sperm characteristics, display behavior, egg weight, egg volume and hatching probability; and (3) changes in phenotypic values for seven parameters according to number of generations in captivity. However, the effect sizes associated with age were substantially greater than those associated with inbreeding and number of generations in captivity. Beyond the independent effects of these three factors on reproductive parameters, the results highlighted their interactive effects and thus the importance of integrating them in the design of genetic management plans for conservation breeding programs.
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Affiliation(s)
- Robin Rabier
- Reneco International Wildlife Consultant LLC, Abu Dhabi, United Arab Emirates.
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum national d'Histoire naturelle, Centre National de la Recherche Scientifique, Sorbonne Université, 57 rue Cuvier, CP 135, 75005, Paris, France.
- Emirates Center for Wildlife Propagation, Missour, Morocco.
| | - Loïc Lesobre
- Reneco International Wildlife Consultant LLC, Abu Dhabi, United Arab Emirates
- Emirates Center for Wildlife Propagation, Missour, Morocco
| | - Alexandre Robert
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum national d'Histoire naturelle, Centre National de la Recherche Scientifique, Sorbonne Université, 57 rue Cuvier, CP 135, 75005, Paris, France
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6
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Dale Broder E, Ghalambor CK, Handelsman CA, Ruell EW, Reznick DN, Angeloni LM. Rapid evolution and plasticity of genitalia. J Evol Biol 2020; 33:1361-1370. [PMID: 32896937 DOI: 10.1111/jeb.13700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 08/25/2020] [Accepted: 08/31/2020] [Indexed: 12/27/2022]
Abstract
Genital morphology exhibits tremendous variation and is intimately linked with fitness. Sexual selection, nonmating natural selection and neutral forces have been explored as potential drivers of genital divergence. Though less explored, genitalia may also be plastic in response to the developmental environment. In poeciliid fishes, the length of the male intromittent organ, the gonopodium, may be driven by sexual selection if longer gonopodia attract females or aid in forced copulation attempts or by nonmating natural selection if shorter gonopodia allow predator evasion. The rearing environment may also affect gonopodium development. Using an experimental introduction of Trinidadian guppies into four replicate streams with reduced predation risk, we tested whether this new environment caused the evolution of genitalia. We measured gonopodium length after rearing the source and introduced populations for two generations in the laboratory to remove maternal and other environmental effects. We split full-sibling brothers into different rearing treatments to additionally test for developmental plasticity of gonopodia in response to predator cues and food levels as well as the evolution of plasticity. The introduced populations had shorter gonopodia after accounting for body size, demonstrating rapid genital evolution in 2-3 years (8-12 generations). Brothers reared on low food levels had longer gonopodia relative to body size than those on high food, reflecting maintenance of gonopodium length despite a reduction in body size. In contrast, gonopodium length was not significantly different in response to the presence or absence of predator cues. Because the plastic response to low food was maintained between the source and introduced populations, there was no evidence that plasticity evolved. This study demonstrates the importance of both evolution and developmental plasticity in explaining genital variation.
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Affiliation(s)
- E Dale Broder
- Department of Biology and Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, USA.,Department of Biology, St. Ambrose University, Davenport, IA, USA
| | - Cameron K Ghalambor
- Department of Biology and Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, USA.,Department of Biology, Centre for Biodiversity Dynamics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Corey A Handelsman
- Department of Biology and Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, USA
| | - Emily W Ruell
- Department of Biology and Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, USA
| | - David N Reznick
- Department of Biology, University of California Riverside, Riverside, CA, USA
| | - Lisa M Angeloni
- Department of Biology and Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO, USA
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7
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Hamel MJ, Spurgeon JJ, Steffensen KD, Pegg MA. Uncovering unique plasticity in life history of an endangered centenarian fish. Sci Rep 2020; 10:12866. [PMID: 32733007 PMCID: PMC7393173 DOI: 10.1038/s41598-020-69911-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/08/2020] [Indexed: 11/30/2022] Open
Abstract
The ability to adapt to changing environments is fundamental for species persistence. Both plasticity and genetic selection are potential drivers that allow for traits to be advantageous, thus leading to increases in survival or fitness. Identifying phenotypic plasticity in life history traits of long-lived organisms can be difficult owing to high survival, long generation times, and few studies at sufficient spatial and temporal scales to elicit a plastic response within a population. To begin to understand phenotypic plasticity of a long-lived freshwater fish in response to environmental conditions, we used a long-term data set consisting of over 1,200 mark-recapture events to inform our understanding of dynamic rate functions and life history attributes. Furthermore, we used a common garden experimental approach to confirm whether changes in life history traits are in response to plasticity in the reaction norm or are genetically derived. Using these approaches, we demonstrated differences in life history traits among Pallid Sturgeon (Scaphirhynchus albus) occupying river segments of varying physical and hydrological stress. The common garden experiment corroborated plastic phenotypic expression in reaction norms for age at first maturity, longevity, fecundity, and maximum size. These growth-mediated attributes resulted in differences in overall fitness traits, where Pallid Sturgeon fecundity was greater than a tenfold difference and 3–6 times the number of life-time spawning events. Anthropogenic modifications to river form and function are likely responsible for the variation in life history attributes resulting from an increased metabolic demand for maintaining station, foraging, and migration. Collectively, our approach provided surprising insight into the capabilities of a centenarian fish to dramatically respond to a changing environment.
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Affiliation(s)
- Martin J Hamel
- Warnell School of Forestry and Natural Resources, University of Georgia, 180 E. Green St., Athens, GA, 30602, USA.
| | - Jonathan J Spurgeon
- School of Agriculture, Fisheries, and Human Sciences, University of Arkansas at Pine Bluff, 1200 N. University Dr., Pine Bluff, AR, 71601, USA
| | - Kirk D Steffensen
- Nebraska Game and Parks Commission, 3300 Holdrege St., Lincoln, NE, 68503, USA
| | - Mark A Pegg
- School of Natural Resources, University of Nebraska-Lincoln, 3310 Holdrege St, Lincoln, NE, 68503, USA
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Santana Marques P, Resende Manna L, Clara Frauendorf T, Zandonà E, Mazzoni R, El-Sabaawi R. Urbanization can increase the invasive potential of alien species. J Anim Ecol 2020; 89:2345-2355. [PMID: 32627190 PMCID: PMC7590067 DOI: 10.1111/1365-2656.13293] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 06/25/2020] [Indexed: 01/06/2023]
Abstract
Alien species often flourish and become invasive in urban ecosystems. How and why invaders succeed in urban systems is an important, yet poorly understood, question. We investigate whether the success of urban invaders is related to changes in species traits that enhance invasive potential. We also explore whether a trophic mechanism helps explain the success of invaders in urban systems. We use the guppy Poecilia reticulata, a globally distributed alien species that has invaded both urban and non-urban systems, as our model. We first characterize the effect of urbanization on streams where guppies are present. We measure guppy invasion success using their population density and size-frequency. Then we assess how traits that are related to the potential of guppies to invade (life history and condition) respond to urbanization. Next, we explore how urbanization affects the availability of food for guppies and their diets. We also test if the presence of other fish species grants biological resistance to invasion by dampening guppy invasive potential. We find that urban streams have high concentrations of ammonium and faecal coliforms, indicating contamination from sewage. On average, guppy populations from urban streams have 26× higher density and larger body sizes than non-urban populations. Urban guppies are in better condition and have on average five more offspring than non-urban guppies. Urbanization increases the availability and consumption of highly nutritious food (chironomid larvae) by guppies. We find a positive relationship between the consumption of chironomids and both fecundity and condition. The presence of other fish species in urban streams often has a negative but small effect on guppy traits and density. Our data suggest a relaxation of trade-offs that shape life-history traits which is related to increased food resources in urban streams. These indicate that urbanization enhances the invasive potential of guppies through a trophic mechanism that simultaneously increases reproduction and somatic investment. Such mechanism is likely widespread because chironomids are often highly abundant in urban systems. Thus, not only guppies but also other invasive species can take advantage of such a resource to invest in traits that enhance invasion success.
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Affiliation(s)
| | - Luisa Resende Manna
- Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Eugenia Zandonà
- Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rosana Mazzoni
- Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rana El-Sabaawi
- Biology Department, University of Victoria, Victoria, BC, Canada
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Medley KA, Westby KM, Jenkins DG. Rapid local adaptation to northern winters in the invasive Asian tiger mosquito
Aedes albopictus
: A moving target. J Appl Ecol 2019. [DOI: 10.1111/1365-2664.13480] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Kim A. Medley
- Tyson Research Center Washington University in St. Louis Eureka Missouri
| | - Katie M. Westby
- Tyson Research Center Washington University in St. Louis Eureka Missouri
| | - David G. Jenkins
- Department of Biology University of Central Florida Orlando Florida
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Cano-Rocabayera O, de Sostoa A, Coll L, Maceda-Veiga A. Managing small, highly prolific invasive aquatic species: Exploring an ecosystem approach for the eastern mosquitofish (Gambusia holbrooki). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 673:594-604. [PMID: 30999100 DOI: 10.1016/j.scitotenv.2019.02.460] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/14/2019] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
Invasive exotic species threaten native biodiversity worldwide and their management is on the agenda of an increasing number of countries. We explored the potential of an ecosystem approach for the natural control of Gambusia holbrooki, which is among the most pernicious and widely distributed fish invaders. Individual-based linear mixed models were used to identify the ecosystem factors (conspecific density, environment and piscivorous birds) that most influenced life-history variation in male and female G. holbrooki (N = 654). All traits (body condition, growth, length, gonad weight, offspring size and number, real and potential fertility) were associated with at least one ecosystem factor from the 18 water bodies surveyed in north-eastern Spain. Models for female reproductive traits had the highest fit (R2 = 0.89) and those for body condition in both sexes the lowest (0.12). The life history of G. holbrooki was mostly affected by its density; increasing offspring number at the expense of offspring size at the sites with the highest fish density. Weaker effects on G. holbrooki life history were observed for the abundance of piscivorous birds and water-quality conditions, including turbidity and nutrient concentrations. Although effects were not consistent between traits, outputs supported that G. holbrooki has a wide tolerance to changes in water quality. Therefore, actions based solely on environmental changes within the range tested probably will fail in reducing the proliferation of G. holbrooki, especially if its body condition improved at the most naturalised sites. Overall, this study suggests that the management of G. holbrooki using ecologically sound treatments is likely to be very difficult in stagnant waters. Preventing new introductions and direct removal once established are the most appropriate actions for the management of this small, highly prolific fish invader.
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Affiliation(s)
- Oriol Cano-Rocabayera
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Institute of Research in Biodiversity (IRBio-UB), Universitat de Barcelona, Spain.
| | - Adolfo de Sostoa
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Institute of Research in Biodiversity (IRBio-UB), Universitat de Barcelona, Spain
| | - Lluís Coll
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Institute of Research in Biodiversity (IRBio-UB), Universitat de Barcelona, Spain
| | - Alberto Maceda-Veiga
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Institute of Research in Biodiversity (IRBio-UB), Universitat de Barcelona, Spain; Department of Integrative Ecology, Estación Biológica de Doñana (EBD-CSIC), Sevilla, Spain
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