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Kawaguchi M, Kuriwada T. Effect of predator cue on escape and oviposition behaviour of freshwater snail. BEHAVIOUR 2020. [DOI: 10.1163/1568539x-bja10018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
When suitability of sites for parent is incompatible with that for their eggs, parent–offspring conflict occurs — the parent must choose between the optimal oviposition site for eggs and that suitable for itself. We examined effects of predator cue on parental habitat use and oviposition site in Physa acuta. We assessed desiccation risk in eggs and the relationship between water depth and predation risk. Predator cues induced the elevation of parental habitat away from the bottom but had no effect on the oviposition site. Oviposition site choice is not by-product of escape response. Eggs that were exposed to desiccation failed to hatch, indicating high desiccation risk. Eggs laid at deeper levels were at higher risk of stripping from oviposition substrates by crayfishes. Although the middle-water level would be suitable oviposition sites, the parents selected an oviposition site in the upper level. There are other benefits and costs of oviposition site selection.
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Affiliation(s)
- Manami Kawaguchi
- Kagoshima University, Faculty of Education, Laboratory of Zoology, Korimoto 1-20-6, Kagoshima 890-0065, Japan
| | - Takashi Kuriwada
- Kagoshima University, Faculty of Education, Laboratory of Zoology, Korimoto 1-20-6, Kagoshima 890-0065, Japan
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Atherton JA, McCormick MI. Parents know best: transgenerational predator recognition through parental effects. PeerJ 2020; 8:e9340. [PMID: 32596050 PMCID: PMC7306219 DOI: 10.7717/peerj.9340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 05/20/2020] [Indexed: 11/30/2022] Open
Abstract
In highly biodiverse systems, such as coral reefs, prey species are faced with predatory threats from numerous species. Recognition of predators can be innate, or learned, and can help increase the chance of survival. Research suggests that parental exposure to increased predatory threats can affect the development, behaviour, and ultimately, success of their offspring. Breeding pairs of damselfish (Acanthochromis polyacanthus) were subjected to one of three olfactory and visual treatments (predator, herbivore, or control), and their developing embryos were subsequently exposed to five different chemosensory cues. Offspring of parents assigned to the predator treatment exhibited a mean increase in heart rate two times greater than that of offspring from parents in herbivore or control treatments. This increased reaction to a parentally known predator odour suggests that predator-treated parents passed down relevant threat information to their offspring, via parental effects. This is the first time transgenerational recognition of a specific predator has been confirmed in any species. This phenomenon could influence predator-induced mortality rates and enable populations to adaptively respond to fluctuations in predator composition and environmental changes.
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Affiliation(s)
- Jennifer A Atherton
- College of Science & Engineering, James Cook University of North Queensland, Townsville, Queensland, Australia.,ARC Centre of Excellence for Coral Reef Studies, Townsville, Queensland, Australia
| | - Mark I McCormick
- College of Science & Engineering, James Cook University of North Queensland, Townsville, Queensland, Australia.,ARC Centre of Excellence for Coral Reef Studies, Townsville, Queensland, Australia
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Tariel J, Plénet S, Luquet É. Transgenerational plasticity of inducible defences: Combined effects of grand-parental, parental and current environments. Ecol Evol 2020; 10:2367-2376. [PMID: 32184987 PMCID: PMC7069331 DOI: 10.1002/ece3.6046] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 01/03/2023] Open
Abstract
Phenotypic plasticity can occur across generations (transgenerational plasticity) when environments experienced by the previous generations influenced offspring phenotype. The evolutionary importance of transgenerational plasticity, especially regarding within-generational plasticity, is a currently hot topic in the plasticity framework. How long an environmental effect can persist across generations and whether multigenerational effects are cumulative are primordial-for the evolutionary significance of transgenerational plasticity-but still unresolved questions. In this study, we investigated how the grand-parental, parental and offspring exposures to predation cues shape the predator-induced defences of offspring in the Physa acuta snail. We expected that the offspring phenotypes result from a three-way interaction among grand-parental, parental and offspring environments. We exposed three generations of snails without and with predator cues according to a full factorial design and measured offspring inducible defences. We found that both grand-parental and parental exposures to predator cues impacted offspring antipredator defences, but their effects were not cumulative and depended on the defences considered. We also highlighted that the grand-parental environment did alter reaction norms of offspring shell thickness, demonstrating an interaction between the grand-parental transgenerational plasticity and the within-generational plasticity. We concluded that the effects of multigenerational exposure to predator cues resulted on complex offspring phenotypic patterns which are difficult to relate to adaptive antipredator advantages.
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Affiliation(s)
- Juliette Tariel
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNAVilleurbanneFrance
| | - Sandrine Plénet
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNAVilleurbanneFrance
| | - Émilien Luquet
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNAVilleurbanneFrance
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Johnson AA, Shokhirev MN, Shoshitaishvili B. Revamping the evolutionary theories of aging. Ageing Res Rev 2019; 55:100947. [PMID: 31449890 DOI: 10.1016/j.arr.2019.100947] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 07/20/2019] [Accepted: 08/21/2019] [Indexed: 01/04/2023]
Abstract
Radical lifespan disparities exist in the animal kingdom. While the ocean quahog can survive for half a millennium, the mayfly survives for less than 48 h. The evolutionary theories of aging seek to explain why such stark longevity differences exist and why a deleterious process like aging evolved. The classical mutation accumulation, antagonistic pleiotropy, and disposable soma theories predict that increased extrinsic mortality should select for the evolution of shorter lifespans and vice versa. Most experimental and comparative field studies conform to this prediction. Indeed, animals with extreme longevity (e.g., Greenland shark, bowhead whale, giant tortoise, vestimentiferan tubeworms) typically experience minimal predation. However, data from guppies, nematodes, and computational models show that increased extrinsic mortality can sometimes lead to longer evolved lifespans. The existence of theoretically immortal animals that experience extrinsic mortality - like planarian flatworms, panther worms, and hydra - further challenges classical assumptions. Octopuses pose another puzzle by exhibiting short lifespans and an uncanny intelligence, the latter of which is often associated with longevity and reduced extrinsic mortality. The evolutionary response to extrinsic mortality is likely dependent on multiple interacting factors in the organism, population, and ecology, including food availability, population density, reproductive cost, age-mortality interactions, and the mortality source.
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Affiliation(s)
| | - Maxim N Shokhirev
- Razavi Newman Integrative Genomics and Bioinformatics Core, The Salk Institute for Biological Studies, La Jolla, CA, United States
| | - Boris Shoshitaishvili
- Division of Literatures, Cultures, and Languages, Stanford University, Stanford, CA, United States
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Wilson KM, Walker SE. Age at mating and male quality influence female patterns of reproductive investment and survival. Ecol Evol 2019; 9:5440-5449. [PMID: 31110692 PMCID: PMC6509372 DOI: 10.1002/ece3.5137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 02/06/2019] [Accepted: 03/15/2019] [Indexed: 01/28/2023] Open
Abstract
The trade-off between the allocation of resources toward somatic maintenance or reproduction is one of the fundamentals of life history theory and predicts that females invest in offspring at the expense of their longevity or vice versa. Mate quality may also affect life history trade-offs through mechanisms of sexual conflict; however, few studies have examined the interaction between mate quality and age at first mating in reproductive decisions. Using house crickets (Acheta domesticus), this study examines how survival and reproductive trade-offs change based on females' age at first reproduction and exposure to males of varying size. Females were exposed to either a large (presumably high-quality) or small male at an early (young), middle (intermediate), or advanced (old) age, and longevity and reproductive investment were subsequently tracked. Females mated at a young age had the largest number of eggs but the shortest total lifespans while females mated at older ages produced fewer eggs but had longer total lifespans. The trade-off between age at first mating and eggs laid appears to be mediated through higher egg-laying rates and shorter postmating lifespans in females mated later in life. Exposure to small males resulted in shorter lifespans and higher egg-laying rates for all females indicating that male manipulation of females, presumably through spermatophore contents, varies with male size in this species. Together, these data strongly support a trade-off between age at first reproduction and lifespan and support the role of sexual conflict in shaping patterns of reproduction.
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Affiliation(s)
- Kerianne M. Wilson
- Department of Ecology and Evolutionary BiologyUniversity of CaliforniaIrvineCalifornia
| | - Sean E. Walker
- Department of Biological SciencesCalifornia State UniversityFullertonCalifornia
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Arce E, Córdoba-Aguilar A. The right choice: predation pressure drives shell selection decisions in the hermit crab Calcinus californiensis. CAN J ZOOL 2018. [DOI: 10.1139/cjz-2017-0023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Several prey species use refuges to avoid predation. Prey need to abandon and shift between refuges. However, during such shifting, prey can be vulnerable to predators. We hypothesize that predator presence may induce prey to make mistakes in choosing their refuge. We tested this by inducing the hermit crab Calcinus californiensis Bouvier, 1898 to shift to a new empty gastropod shell (three different species: Columbella Lamarck, 1799, Nerita scabricosta Lamarck, 1822, and Stramonita biserialis (Blainville, 1832)) in the absence and presence of Eriphia squamata Stimpson, 1860, which is an efficient shell-crushing natural crab predator. We expected that when a predator was present, hermit crabs would (i) inspect fewer shells and (or) (ii) change to a shell that is either too heavy to allow escape or unfit in size to accommodate the hermit crab. Although the first prediction was met, the second prediction was supported only when S. biserialis shells were used. Thus, in the presence of a predator, hermit crabs prioritize escaping by selecting lighter shells, which would allow the crab to move faster. We conclude that predator presence may induce prey to make mistakes in refuge selection, suggesting that this has severe consequences in future predatory events.
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Affiliation(s)
- E. Arce
- Laboratorio de Acuicultura, Departamento de Hidrobiología, Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Apartado Postal 70-275, Ciudad Universitaria, 04510, México, D.F., México
| | - A. Córdoba-Aguilar
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Apartado Postal 70-275, Ciudad Universitaria, 04510, México, D.F., México
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Guo J, Martín PR, Zhang C, Zhang JE. Predation risk affects growth and reproduction of an invasive snail and its lethal effect depends on prey size. PLoS One 2017; 12:e0187747. [PMID: 29136660 PMCID: PMC5685626 DOI: 10.1371/journal.pone.0187747] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 10/25/2017] [Indexed: 11/18/2022] Open
Abstract
The behavior of invasive species under predation risk has been studied extensively, but their growth and reproductive responses have rarely been investigated. We conducted experiments with juveniles and adults of the invasive freshwater snail Pomacea canaliculata, and we observed changes in growth and reproduction in response to predation risk from a caged predator (Trachemys scripta elegans). P. canaliculata produced eggs earlier in the presence of predators and injured conspecifics compared with the control group (no risk), although the total number of egg masses laid by per female was exceeded by that of the controls after 15 days. Egg hatching success noticeably decreased under predation risk, and the incubation period was significantly prolonged; however, the oviposition height of the snails was not affected. A lethal effect of predation risk was detected in juvenile snails but not in adults. The growth of juvenile P. canaliculata was inhibited under predation risk, probably due to a reduction in food intake. Adult females exhibited a greater reduction in growth under predation risk than males, which likely resulted in part from the high reproductive investment of females in egg laying. These results indicate that P. canaliculata snails under predation risk face a trade-off between predator avoidance and growth and reproduction, where the lethal effect of predation risk is linked to the size of the prey.
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Affiliation(s)
- Jing Guo
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Pablo R. Martín
- Laboratorio de Ecología, INBIOSUR (UNS/CONICET), Departmento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina
| | - Chunxia Zhang
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Jia-en Zhang
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture, Guangzhou, China
- Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou, China
- * E-mail:
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Luquet E, Tariel J. Offspring reaction norms shaped by parental environment: interaction between within- and trans-generational plasticity of inducible defenses. BMC Evol Biol 2016; 16:209. [PMID: 27733114 PMCID: PMC5062831 DOI: 10.1186/s12862-016-0795-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 10/07/2016] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Within-generational plasticity (WGP) and transgenerational plasticity (TGP) are mechanisms allowing rapid adaptive responses to fluctuating environments without genetic change. These forms of plasticity have often been viewed as independent processes. Recent evidence suggests that WGP is altered by the environmental conditions experienced by previous generations (i.e., TGP). In the context of inducible defenses, one of the most studied cases of plasticity, the WGP x TGP interaction has been poorly investigated. RESULTS We provide evidence that TGP can alter the reaction norms of inducible defenses in a freshwater snail. The WGP x TGP interaction patterns are trait-specific and lead to decreased slope of reaction norms (behaviour and shell thickness). Offspring from induced parents showed a higher predator avoidance behaviour and a thicker shell than snails from non-induced parents in no predator-cue environment while they reached similar defenses in predator-cue environment. The WGP x TGP interaction further lead to a switch from a plastic towards a constitutive expression of defenses for shell dimensions (flat reaction norm). CONCLUSIONS WGP-alteration by TGP may shape the adaptive responses to environmental change and then has a substantial importance to understand the evolution of plasticity.
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Affiliation(s)
- Emilien Luquet
- CNRS UMR 5023 Ecologie des Hydrosystèmes Naturels et Anthropisés, Université Claude Bernard Lyon1, Université de Lyon, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne cedex, France.
| | - Juliette Tariel
- CNRS UMR 5023 Ecologie des Hydrosystèmes Naturels et Anthropisés, Université Claude Bernard Lyon1, Université de Lyon, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne cedex, France
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Auld JR, Helker AD, Kolpas A. Consequences of mating and predation risk for longevity in a freshwater snail: abstinence makes the heart beat longer. J Evol Biol 2016; 29:2539-2544. [PMID: 27591368 DOI: 10.1111/jeb.12976] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 08/04/2016] [Accepted: 08/28/2016] [Indexed: 11/26/2022]
Affiliation(s)
- J. R. Auld
- Department of Biology West Chester University West Chester PA USA
| | - A. D. Helker
- Department of Mathematics West Chester University West Chester PA USA
| | - A. Kolpas
- Department of Mathematics West Chester University West Chester PA USA
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