1
|
Lejeune B, Lepoint G, Denoël M. Food web collapse and regime shift following goldfish introduction in permanent ponds. GLOBAL CHANGE BIOLOGY 2024; 30:e17435. [PMID: 39039839 DOI: 10.1111/gcb.17435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/18/2024] [Accepted: 07/05/2024] [Indexed: 07/24/2024]
Abstract
In a global context of invasive alien species (IAS), native predators are often eradicated by functionally different IAS, which may induce complex cascading consequences on ecosystem functioning because of the key role predators play in structuring communities and stabilizing food webs. In permanent ponds, the most abundant freshwater systems on Earth, global human-mediated introductions of alien omnivores such as the pet trade goldfish are driving broad-scale patterns of native predators' exclusion, but cascading consequences on food web structure and functioning are critically understudied. We compared food webs of naturally fishless ponds versus ponds where dominant native predators (newts) had been extirpated by invasive goldfish within the last decade. Integrating community-wide isotopic, taxonomic and functional traits approaches, our study reveals that pond food webs collapsed in both vertical and horizontal dimensions following goldfish introduction and the associated exclusion of native predators. Consumer taxonomic diversity was drastically reduced, essentially deprived of amphibians as well as predatory and mobile macroinvertebrates to the profit of burrowing, lower trophic level consumers (detritivores). Changes in community structure and function underlined a regime shift from a macrophyte-dominated system mainly characterized by benthic primary production (periphyton), to a macrophyte-depleted state of ponds hosting communities mainly associated with phytoplankton primary production and detritus accumulation, with higher tolerance to eutrophication and low dissolved oxygen concentration. Results underline major impacts of widely introduced omnivores such as the goldfish on the functioning of pond ecosystems with potentially dramatic consequences on the key ecosystem services they deliver, such as global biodiversity support or water quality improvement. They also shed light on the key role of submerged aquatic vegetation in supporting diverse communities and complex food webs in shallow lentic systems and call for urgent consideration of threats posed by IAS on ponds' ecosystems by managers and policymakers.
Collapse
Affiliation(s)
- Benjamin Lejeune
- Laboratory of Ecology and Conservation of Amphibians (LECA), Freshwater and OCeanic Science Unit of reSearch (FOCUS), University of Liège, Liège, Belgium
- Laboratory of Trophic and Isotopes Ecology (LETIS), Freshwater and OCeanic Science Unit of reSearch (FOCUS), University of Liège, Liège, Belgium
| | - Gilles Lepoint
- Laboratory of Trophic and Isotopes Ecology (LETIS), Freshwater and OCeanic Science Unit of reSearch (FOCUS), University of Liège, Liège, Belgium
| | - Mathieu Denoël
- Laboratory of Ecology and Conservation of Amphibians (LECA), Freshwater and OCeanic Science Unit of reSearch (FOCUS), University of Liège, Liège, Belgium
| |
Collapse
|
2
|
Bernabò I, Iannella M, Cittadino V, Corapi A, Romano A, Andreone F, Biondi M, Gallo Splendore M, Tripepi S. Survived the Glaciations, Will They Survive the Fish? Allochthonous Ichthyofauna and Alpine Endemic Newts: A Road Map for a Conservation Strategy. Animals (Basel) 2023; 13:ani13050871. [PMID: 36899728 PMCID: PMC10000147 DOI: 10.3390/ani13050871] [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: 01/31/2023] [Revised: 02/23/2023] [Accepted: 02/25/2023] [Indexed: 03/04/2023] Open
Abstract
The Calabrian Alpine newt (Ichthyosaura alpestris inexpectata) is a glacial relict with small and extremely localised populations in the Catena Costiera (Calabria, Southern Italy) and is considered to be "Endangered" by the Italian IUCN assessment. Climate-induced habitat loss and recent fish introductions in three lakes of the Special Area of Conservation (SAC) Laghi di Fagnano threaten the subspecies' survival in the core of its restricted range. Considering these challenges, understanding the distribution and abundance of this newt is crucial. We surveyed the spatially clustered wetlands in the SAC and neighbouring areas. First, we provide the updated distribution of this subspecies, highlighting fish-invaded and fishless sites historically known to host Calabrian Alpine newt populations and two new breeding sites that have been recently colonised. Then, we provide a rough estimate of the abundance, body size and body condition of breeding adults and habitat characteristics in fish-invaded and fishless ponds. We did not detect Calabrian Alpine newts at two historically known sites now invaded by fish. Our results indicate a reduction in occupied sites and small-size populations. These observations highlight the need for future strategies, such as fish removal, the creation of alternative breeding habitats and captive breeding, to preserve this endemic taxon.
Collapse
Affiliation(s)
- Ilaria Bernabò
- Department of Biology, Ecology and Earth Science, University of Calabria, Via P. Bucci 4/B, I-87036 Rende, Italy
- Correspondence: (I.B.); (M.I.)
| | - Mattia Iannella
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Via Vetoio—Coppito, I-67100 L’Aquila, Italy
- Correspondence: (I.B.); (M.I.)
| | - Viviana Cittadino
- Department of Biology, Ecology and Earth Science, University of Calabria, Via P. Bucci 4/B, I-87036 Rende, Italy
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Via Vetoio—Coppito, I-67100 L’Aquila, Italy
| | - Anna Corapi
- Department of Biology, Ecology and Earth Science, University of Calabria, Via P. Bucci 4/B, I-87036 Rende, Italy
| | - Antonio Romano
- Consiglio Nazionale delle Ricerche—Istituto per la BioEconomia, Via dei Taurini 19, I-00100 Roma, Italy
| | - Franco Andreone
- Museo Regionale di Scienze Naturali, Via G. Giolitti 36, I-10123 Torino, Italy
| | - Maurizio Biondi
- Department of Life, Health & Environmental Sciences, University of L’Aquila, Via Vetoio—Coppito, I-67100 L’Aquila, Italy
| | | | - Sandro Tripepi
- Department of Biology, Ecology and Earth Science, University of Calabria, Via P. Bucci 4/B, I-87036 Rende, Italy
| |
Collapse
|
3
|
Brooks GC, Kindsvater HK. Early Development Drives Variation in Amphibian Vulnerability to Global Change. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.813414] [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
Understanding how natural selection determines species’ life histories can reveal their resilience or sensitivity to anthropogenic changes. For example, the safe harbor hypothesis posits that natural selection will favor life histories that maximize the time spent in the safest life stages; a second theoretical prediction suggests that species with complex life histories will maximize the growth potential of a life stage relative to its safety. Amphibians exhibit complex life histories, with a diversity of developmental strategies occurring across taxa. Many strategies involve the complete elimination of a particular life stage, and thus provide an excellent opportunity to evaluate the main tenets of the safe harbor hypothesis and understand the consequences of this developmental variation for conservation of threatened amphibians. We develop a general framework for understanding developmental life histories of amphibians – including the special cases of paedomorphism, direct development, and viviparity – based on the relative growth potential and safety offered by aquatic and terrestrial habitat, which we tested using a global trait database. We then compare the IUCN Red List status of species differing in developmental mode, revealing that most fully aquatic species and species with an aquatic larval stage are currently of Least Concern, despite the fact that freshwater habitats are being lost at a much faster rate compared with terrestrial ecosystems. The higher proportion of direct developing and viviparous species that are threatened can be attributed to their smaller ranges, the fact that they are more likely to be found in rainforest habitats, and their relatively slow life histories. We conclude that an amphibian’s developmental mode reflects the relative costs and benefits of different habitats, and that this could contribute to the resilience or vulnerability of amphibians to future anthropogenic change.
Collapse
|
4
|
Winandy L, Di Gesu L, Lemoine M, Jacob S, Martin J, Ducamp C, Huet M, Legrand D, Cote J. Maternal and personal information mediates the use of social cues about predation risk. Behav Ecol 2021. [DOI: 10.1093/beheco/araa151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Abstract
Organisms can gain information about predation risks from their parents, their own personal experience, and their conspecifics and adjust their behavior to alleviate these risks. These different sources of information can, however, provide conflicting information due to spatial and temporal variation of the environment. This raises the question of how these cues are integrated to produce adaptive antipredator behavior. We investigated how common lizards (Zootoca vivipara) adjust the use of conspecific cues about predation risk depending on whether the information is maternally or personally acquired. We experimentally manipulated the presence of predator scent in gestating mothers and their offspring in a full-crossed design. We then tested the consequences for social information use by monitoring offspring social response to conspecifics previously exposed to predator cues or not. Lizards were more attracted to the scent of conspecifics having experienced predation cues when they had themselves no personal information about predation risk. In contrast, they were more repulsed by conspecific scent when they had personally obtained information about predation risk. However, the addition of maternal information about predation risk canceled out this interactive effect between personal and social information: lizards were slightly more attracted to conspecific scent when these two sources of information about predation risk were in agreement. A chemical analysis of lizard scent revealed that exposure to predator cues modified the chemical composition of lizard scents, a change that might underlie lizards’ use of social information. Our results highlight the importance of considering multiple sources of information while studying antipredator defenses.
Collapse
Affiliation(s)
- Laurane Winandy
- CNRS, Université Toulouse III Paul Sabatier, ENFA; UMR5174 EDB (Laboratoire Évolution and Diversité Biologique), 118 Route de Narbonne, Toulouse, France
- CNRS, UMR5321, Station d’Écologie Théorique et Expérimentale, 2 route du cnrs, Moulis, France
| | - Lucie Di Gesu
- CNRS, Université Toulouse III Paul Sabatier, ENFA; UMR5174 EDB (Laboratoire Évolution and Diversité Biologique), 118 Route de Narbonne, Toulouse, France
| | - Marion Lemoine
- CNRS, Université Toulouse III Paul Sabatier, ENFA; UMR5174 EDB (Laboratoire Évolution and Diversité Biologique), 118 Route de Narbonne, Toulouse, France
| | - Staffan Jacob
- CNRS, UMR5321, Station d’Écologie Théorique et Expérimentale, 2 route du cnrs, Moulis, France
| | - José Martin
- Department of Evolutionary Ecology, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal 2, Madrid, Spain
| | - Christine Ducamp
- CNRS, Université Toulouse III Paul Sabatier, ENFA; UMR5174 EDB (Laboratoire Évolution and Diversité Biologique), 118 Route de Narbonne, Toulouse, France
| | - Michèle Huet
- CNRS, UMR5321, Station d’Écologie Théorique et Expérimentale, 2 route du cnrs, Moulis, France
| | - Delphine Legrand
- CNRS, UMR5321, Station d’Écologie Théorique et Expérimentale, 2 route du cnrs, Moulis, France
| | - Julien Cote
- CNRS, Université Toulouse III Paul Sabatier, ENFA; UMR5174 EDB (Laboratoire Évolution and Diversité Biologique), 118 Route de Narbonne, Toulouse, France
| |
Collapse
|
5
|
De Troyer N, Eurie Forio MA, Roels K, De Meester L, Lemmens P, Declerck SA, Martens K, Goethals P. Key management rules for agricultural alpine newt breeding ponds based on habitat suitability models. Glob Ecol Conserv 2020. [DOI: 10.1016/j.gecco.2020.e01086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
6
|
Romagnoli S, Ficetola GF, Manenti R. Invasive crayfish does not influence spawning microhabitat selection of brown frogs. PeerJ 2020; 8:e8985. [PMID: 32328354 PMCID: PMC7166042 DOI: 10.7717/peerj.8985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 03/25/2020] [Indexed: 11/29/2022] Open
Abstract
Microhabitat selection is a key component of amphibian breeding biology and can be modulated in response to the features of breeding sites and the presence of predators. Despite invasive alien species being among the major threats to amphibians, there is limited information on the role of invasive species in shaping amphibians’ breeding microhabitat choice. The invasive red swamp crayfish (Procambarus clarkii) is a major predator of amphibians’ larvae, including those of the brown frogs Rana dalmatina and Rana latastei. Although qualitative information about the spawning site preferences and breeding microhabitat choice of brown frogs is available in the literature, only a few studies performed quantitative analyses, and the relationship between microhabitat choice and the presence of alien predators has not been investigated yet. The aims of this study were: (1) to characterize the microhabitats selected for clutch deposition by R. dalmatina and R. latastei and (2) to test if the position and the aggregation of egg clutches differ in sites invaded or not invaded by P. clarkii. During spring 2017, we surveyed multiple times 15 breeding sites of both brown frogs in Northern Italy; in each site we assessed the features of the microhabitat where each egg clutch was laid, considering its position (distance from the shore, depth of the water column) and the degree of aggregation of clutches. In each site we also assessed the presence/absence of the invasive crayfish and the relative abundance in the breeding period. We detected egg clutches in all sites; the crayfish occurred in eight ponds. Our results showed substantial differences between the spawning microhabitat features of the two brown frogs: Rana latastei clutches showed a higher degree of aggregation and were associated with deeper areas of the ponds , while Rana dalmatina deposited more spaced out clutches in areas of the ponds that were less deep. For both species, spawning microhabitat features were not significantly different between sites with and without P. clarkii. Although we did not detect behavioural responses to P. clarkii in the choice of spawning microhabitat , additional studies are required to assess whether these frogs modulate other behavioural traits (e.g. during larval development) in response to the invasive predator.
Collapse
Affiliation(s)
- Samuele Romagnoli
- Department of Environmental Science and Policy, University of Milan, Milan, Italy
| | - Gentile Francesco Ficetola
- Department of Environmental Science and Policy, University of Milan, Milan, Italy.,Laboratoire d'Ecologie Alpine (LECA), Université Grenoble-Alpes, Grenoble, France
| | - Raoul Manenti
- Department of Environmental Science and Policy, University of Milan, Milan, Italy
| |
Collapse
|
7
|
A subtle threat: behavioral and phenotypic consequences of invasive mosquitofish on a native paedomorphic newt. Biol Invasions 2019. [DOI: 10.1007/s10530-019-02181-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Denoël M, Drapeau L, Winandy L. Reproductive fitness consequences of progenesis: Sex-specific pay-offs in safe and risky environments. J Evol Biol 2019; 32:629-637. [PMID: 30927549 DOI: 10.1111/jeb.13449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 02/16/2019] [Accepted: 03/22/2019] [Indexed: 11/30/2022]
Abstract
Progenesis is considered to have an important role in evolution because it allows the retention of both a larval body size and shape in an adult morphology. However, the cost caused by the adoption of a progenetic process in both males and females remains to be explored to explain the success of progenesis and particularly its biased prevalence across the sexes and environments. Here, through an experimental approach, we used a facultative progenetic species, the palmate newt (Lissotriton helveticus) that can either mature at a small size and retain gills or mature after metamorphosis, to test three hypotheses for sex-specific pay-offs of progenesis in safe versus risky habitats. Goldfish were used because they caused a higher decline in progenetic than metamorphic newts. We determined that progenetic newts have a lower reproductive fitness than metamorphic newts. We also found that, when compared to metamorphs, progenetic males have lower reproductive activity than progenetic females and that predatory risk affects more progenetic than metamorphic newts. By identifying ultimate causes of the female-biased sex ratios found in nature, these results support the male escape hypothesis, that is the higher metamorphosis rate of progenetic males. They also highlight that although progenesis is advantageous in advancing the age at first reproduction, it also brings an immediate fitness cost and this, particularly, in hostile predatory environments. This means that whereas some environmental constraints could favour facultative progenesis, some others, such as predation, can ultimately counter-select progenesis. Altogether, these results improve our understanding of how developmental processes can affect the sexes differently and how species invasions can impair the success of alternative developmental phenotypes.
Collapse
Affiliation(s)
- Mathieu Denoël
- Laboratory of Fish and Amphibian Ethology, Behavioural Biology Group, Freshwater and OCeanic science Unit of reSearch (FOCUS), University of Liège, Liège, Belgium
| | - Laura Drapeau
- Laboratory of Fish and Amphibian Ethology, Behavioural Biology Group, Freshwater and OCeanic science Unit of reSearch (FOCUS), University of Liège, Liège, Belgium
| | - Laurane Winandy
- Laboratory of Fish and Amphibian Ethology, Behavioural Biology Group, Freshwater and OCeanic science Unit of reSearch (FOCUS), University of Liège, Liège, Belgium.,Laboratoire Evolution et Diversité Biologique, CNRS-Université Paul Sabatier-UMR 5174, Toulouse, France.,Station d'Ecologie Théorique et Expérimentale, CNRS UMR 5321, Moulis, France
| |
Collapse
|
9
|
Denoël M, Ficetola GF, Sillero N, Džukić G, Kalezić ML, Vukov T, Muhovic I, Ikovic V, Lejeune B. Traditionally managed landscapes do not prevent amphibian decline and the extinction of paedomorphosis. ECOL MONOGR 2019. [DOI: 10.1002/ecm.1347] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mathieu Denoël
- Laboratory of Fish and Amphibian Ethology Behavioural Biology Group Freshwater and Oceanic Science Unit of Research (FOCUS) University of Liège Liège Belgium
| | - G. Francesco Ficetola
- Department of Environmental Science and Policy Università degli Studi di Milano Milan Italy
- Université Grenoble‐Alpes CNRS Laboratoire d’Écologie Alpine (LECA) Grenoble France
| | - Neftali Sillero
- Centro de Investigação em Ciências Geo‐Espaciais University of Porto Porto Portugal
| | - Georg Džukić
- Department of Evolutionary Biology Institute for Biological Research “Siniša Stanković” University of Belgrade Belgrade Serbia
| | - Miloš L. Kalezić
- Department of Evolutionary Biology Institute for Biological Research “Siniša Stanković” University of Belgrade Belgrade Serbia
| | - Tanja Vukov
- Department of Evolutionary Biology Institute for Biological Research “Siniša Stanković” University of Belgrade Belgrade Serbia
| | - Irma Muhovic
- Montenegrin Ecologists Society Podgorica Montenegro
| | - Vuk Ikovic
- Montenegrin Ecologists Society Podgorica Montenegro
| | - Benjamin Lejeune
- Laboratory of Fish and Amphibian Ethology Behavioural Biology Group Freshwater and Oceanic Science Unit of Research (FOCUS) University of Liège Liège Belgium
- Laboratory of Oceanology Freshwater and Oceanic Science Unit of Research (FOCUS) University of Liège Liège Belgium
| |
Collapse
|
10
|
Cabrera-Guzmán E, Díaz-Paniagua C, Gomez-Mestre I. Invasive mosquitofish (Gambusia holbrooki) affect egg-laying and behaviour of Spanish pygmy newts (Triturus pygmaeus). AMPHIBIA-REPTILIA 2019. [DOI: 10.1163/15685381-20181019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Invasive species are one of the main causes of amphibian declines worldwide, often through direct predation. Even species or life stages that may not be prone to predation by invasive animals can be affected through alterations of their reproductive behaviour and/or performance. This aspect is less commonly investigated, and may be important for understanding the full impact of invasive species on local amphibian populations. We used laboratory experiments to measure effects of the invasive Eastern mosquitofish (Gambusia holbrooki) on gravid pygmy newts (Triturus pygmaeus) from southern Spain. Gravid newts altered their position in the water column by moving from the bottom of the aquaria to the surface when in the presence of free-swimming mosquitofish, presumably to reduce physical contact with them. Newts also detected and consumed less prey in presence of free mosquitofish. Newts exposed to caged or free-swimming mosquitofish laid fewer eggs than newts not exposed to the invasive species, suggesting that chemical or visual cues alone were sufficient to alter the behaviour of gravid newts. Our results suggest that mosquitofish can reduce the reproductive success of native pygmy newts in the wild, highlighting the need for management efforts to mitigate this impact.
Collapse
Affiliation(s)
- Elisa Cabrera-Guzmán
- 1Ecology, Evolution and Development Group, Department of Wetland Ecology, Estación Biológica de Doñana, CSIC, Seville, Spain
- 2Present address: Department of Integrative Biology, Oklahoma State University, 501 Life Sciences West, Stillwater, OK 74078, USA
| | - Carmen Díaz-Paniagua
- 1Ecology, Evolution and Development Group, Department of Wetland Ecology, Estación Biológica de Doñana, CSIC, Seville, Spain
| | - Ivan Gomez-Mestre
- 1Ecology, Evolution and Development Group, Department of Wetland Ecology, Estación Biológica de Doñana, CSIC, Seville, Spain
| |
Collapse
|
11
|
Daversa DR, Manica A, Bosch J, Jolles JW, Garner TWJ. Routine habitat switching alters the likelihood and persistence of infection with a pathogenic parasite. Funct Ecol 2018. [DOI: 10.1111/1365-2435.13038] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- David R. Daversa
- Institute of Integrative BiologyUniversity of Liverpool Liverpool UK
- Department of ZoologyUniversity of Cambridge Cambridge UK
- Institute of ZoologyZoological Society of London London UK
| | - Andrea Manica
- Department of ZoologyUniversity of Cambridge Cambridge UK
| | - Jaime Bosch
- Museo Nacional de Ciencias NaturalesCSIC Madrid Spain
- Centro de InvestigaciónSeguimiento y EvaluaciónParque Nacional de la Sierra de Guadarrama Rascafría Spain
| | - Jolle W. Jolles
- Department of ZoologyUniversity of Cambridge Cambridge UK
- Department of Collective BehaviourMax Planck Institute for Ornithology Konstanz Germany
| | | |
Collapse
|
12
|
Ord TJ, Summers TC, Noble MM, Fulton CJ. Ecological Release from Aquatic Predation Is Associated with the Emergence of Marine Blenny Fishes onto Land. Am Nat 2017; 189:570-579. [PMID: 28410030 DOI: 10.1086/691155] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
An ecological release from competition or predation is a frequent adaptive explanation for the colonization of novel environments, but empirical data are limited. On the island of Rarotonga, several blenny fish species appear to be in the process of colonizing land. Anecdotal observations have implied that aquatic predation is an important factor in prompting such amphibious fish behavior. We provide evidence supporting this hypothesis by demonstrating that amphibious blennies shift their abundance up and down the shoreline to remain above predatory fishes that periodically move into intertidal areas during high tide. A predation experiment using blenny mimics confirmed a high risk of aquatic predation for blennies, significantly higher than predation experienced on land. These data suggest that predation has played an active role in promoting terrestrial activity in amphibious blennies and provide a rare example of how ecological release from predation could drive the colonization of a novel environment.
Collapse
|
13
|
Cabrera-Guzmán E, Díaz-Paniagua C, Gomez-Mestre I. Competitive and predatory interactions between invasive mosquitofish and native larval newts. Biol Invasions 2017. [DOI: 10.1007/s10530-017-1369-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
14
|
Winandy L, Legrand P, Denoël M. Habitat selection and reproduction of newts in networks of fish and fishless aquatic patches. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2016.10.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
15
|
Mori E, Menchetti M, Cantini M, Bruni G, Santini G, Bertolino S. Twenty years’ monitoring of a population of Italian crested newts Triturus carnifex: strong site fidelity and shifting population structure in response to restoration. ETHOL ECOL EVOL 2016. [DOI: 10.1080/03949370.2016.1236040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Emiliano Mori
- Dipartimento di Scienze della Vita, Università di Siena, Via P.A. Mattioli 4, 53100 Siena, Italy
| | - Mattia Menchetti
- Dipartimento di Biologia, Università di Firenze, Via Madonna del Piano 6, 50019 Sesto Fiorentino (Firenze), Italy
| | - Matteo Cantini
- Dipartimento di Biologia, Università di Firenze, Via Madonna del Piano 6, 50019 Sesto Fiorentino (Firenze), Italy
| | - Giacomo Bruni
- Dipartimento di Biologia, Università di Firenze, Via Madonna del Piano 6, 50019 Sesto Fiorentino (Firenze), Italy
| | - Giacomo Santini
- Dipartimento di Biologia, Università di Firenze, Via Madonna del Piano 6, 50019 Sesto Fiorentino (Firenze), Italy
| | - Sandro Bertolino
- DISAFA, Università di Torino, Largo Paolo Braccini 2, 10095 Grugliasco (Torino), Italy
| |
Collapse
|
16
|
Manenti R, Melotto A, Denoël M, Ficetola GF. Amphibians breeding in refuge habitats have larvae with stronger antipredator responses. Anim Behav 2016. [DOI: 10.1016/j.anbehav.2016.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
17
|
Winandy L, Colin M, Denoël M. Temporal habitat shift of a polymorphic newt species under predation risk. Behav Ecol 2016. [DOI: 10.1093/beheco/arw008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|