Ecological consequences of amphibian larvae and their native and alien predators on the community structure of temporary ponds

Arribas, Rosa; Díaz‐Paniagua, Carmen; Gómez-Mestre, Iván

doi:10.1111/fwb.12402

Cited by 42 publications

(61 citation statements)

References 57 publications

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“…, Arribas et al. ). It is often assumed that prey naiveté largely explains the success of IAP and their harmful ecological impacts, but this idea has only recently become the focus of empirical research (Cox and Lima , Paolucci et al.…”

Section: Introductionmentioning

confidence: 99%

“…This "enemy release hypothesis" suggests that after invading a new environment, IAS escape many of their parasites, predators, and competitors (Keane and Crawley 2002). The "prey naiveté hypothesis" suggests that invasive alien predators (IAP) may not be recognized as enemies by native prey, or that effective antipredator responses may be absent (Cox andLima 2006, Banks andDickman 2007), resulting in greater hunting efficiency of predators (Kiesecker andBlaustein 1997, Gomez-Mestre andDíaz-Paniagua 2011), and potentially devastating effects for prey populations (Cruz et al 2006, Arribas et al 2014. It is often assumed that prey naiveté largely explains the success of IAP and their harmful ecological impacts, but this idea has only recently become the focus of empirical research (Cox andLima 2006, Paolucci et al 2013).…”

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confidence: 99%

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Naive tadpoles do not recognize recent invasive predatory fishes as dangerous

Hettyey

Thonhauser

Bókony

et al. 2016

Ecology

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Abstract. Invasive alien predators (IAP) are spreading on a global scale-often with devastating ecological effects. One reason for their success may be that prey species fail to recognize them due to a lack of co-evolutionary history. We performed a comprehensive test of this "prey naiveté" hypothesis using a novel approach: we tested whether predator-naive tadpoles of the agile frog (Rana dalmatina) display antipredator behavior upon encountering chemical cues produced by native, invasive (established or recent) or allopatric fishes (four perciforms, four siluriforms, and two cypriniforms). We studied the influence of population origin on predatordetection ability by presenting chemical cues to predator-naive tadpoles that originated from fishless hill-ponds or fish-infested floodplain populations. Before trials, we fed fishes with tadpoles or an alternative food to test whether direct chemical cues from the predator's diet influences the tadpoles' recognition of potential predators. Tadpoles reduced their activity upon exposure to cues from native and long-established invasive perciforms, but not in response to recent invaders, allopatric predators, or to any siluriforms. Also, predators that were previously fed with tadpoles did not universally induce behavioral defensedefenses upon first encounter. Finally, tadpoles originating from isolated hill-ponds exhibited higher baseline activity and responded in weaker fashion than their conspecifics from floodplain populations, which co-exist with predatory fishes. Our results indicate that tadpoles may be vulnerable to invading predatory fishes due to their inability to recognize them as dangerous, though their ability to recognize invasive IAP may evolve rapidly, in fewer than 30 generations.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Naive tadpoles do not recognize recent invasive predatory fishes as dangerous

Hettyey

Thonhauser

Bókony

et al. 2016

Ecology

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“…Competition and predation are two key factors influencing the structure and dynamics of ecological communities (Paine, 1966;Vellend, 2010;Arribas et al, 2014). These two factors often occur at the same time and the mere presence of predators or competitors, in addition to their density-dependent effects on prey, may force organisms with phenotypic plasticity to shift aspects of their phenotype (e.g., behavior, feeding structures, metabolism) thereby altering the realized trophic niche of the species (Levin, 2009;Caut et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

“…However, while the trophic status of species and communities is recognized as crucial to understanding energy flow, nutrient cycling, species coexistence and community assembly (Pimm, 1982;Pascual and Dunne, 2005), we have relatively little information on how different members of a guild might alter their feeding niche when subjected to predation and competition. Therefore, direct assessments of trophic interactions are needed to better understand community composition and shed light on the complex relationships between competition and predation that arise as different species are involved (Arribas et al, 2014(Arribas et al, , 2015.…”

Section: Introductionmentioning

confidence: 99%

Predation and Competition Differentially Affect the Interactions and Trophic Niches of a Neotropical Amphibian Guild

2018

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Competition and predation alter individual traits of organisms, and these effects can scale-up to have consequences on community structure and dynamics. The relative importance of competition and predation will depend largely on the local assemblage of species, the type of predators, or the degree of niche segregation. We experimentally investigated the interplay of competition and predation on the structure and trophic level (measured via stable isotope analysis) of a seven-species Neotropical freshwater guild using a mesocosm approach in central Panama. We tested the effect of two types of predators (dragonfly nymphs or adult water bugs) in combination with the presence/absence of a common competitor, the red-eyed treefrog (Agalychnis callidryas), on four core species of tadpoles. We also distinguished between consumptive and non-consumptive effects of each type of predator by presenting them to tadpoles caged or freely roaming. Dragonfly larvae were more efficient predators than water bugs, but these effects were not uniform for all tadpole species. All amphibian species grew bigger when raised in the presence of an uncaged dragonfly nymph, presumably due to reduced competition through thinning, but tadpoles were smaller when exposed to caged dragonfly nymphs indicating the existence of non-consumptive predator effects as well. Predator presence also altered the relative trophic position of the different amphibian species, causing some tadpole species to increase and others to decrease their trophic status. Despite the presumed ecological similarity of tadpole species in the guild, the interplay of competition and predation had varying effects on the trophic status of nearly every species. Our results indicate that community composition can greatly affect the trophic level of larval amphibians, and that predation may have a greater role than competition in structuring Neotropical larval amphibian guilds.

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“…When prey is not adapted to respond to hunting tactics of a new predator or even to recognize it as a threat, hunting efficiency of predators may dramatically increase and prey populations may suffer potentially devastating effects (Cruz et al 2006, GomezMestre and Díaz-Paniagua 2011, Arribas et al 2014. Predator species recovered because of management actions or reintroduction projects might affect local prey populations in a similar way as an alien predator.…”

Section: Discussionmentioning

confidence: 99%

Habitat-dependent effect of a rare predator on apparent survival of male Black-headed Bunting

Kralj¹,

Barišić²,

Tutiš³

et al. 2016

ACE

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ABSTRACT. Both habitat changes and predation can cause population declines in farmland birds. Habitat changes may allow novel or invasive alien predators to establish populations in new environments, which can have major ecological consequences for native prey species. We studied effects of a novel avian predator, the Montagu's Harrier (Circus pygargus), on the survival of male Black-headed Buntings (Emberiza melanocephala). Between 2011 and 2015, survival of 35 territorial Black-headed Bunting males was monitored and their apparent survival in years with and without predators was computed. The apparent monthly survival (reported ± SE) was very high during the breeding seasons when Montagu's Harrier was not present (0.957 ± 0.035) as well as in nonbreeding periods (0.981 ± 0.011). It was significantly lower during the breeding season of 2013 when Montagu's Harrier was present in the area (0.600 ± 0.136). Changes in habitat structure due to alteration in agricultural practice and temporal changes in weather conditions have presumably enabled Montagu's Harriers to breed in the study area and led to increases in the importance of birds in Montagu's Harrier's diet. The appearance of Montagu's Harriers in the study area strongly coincided with the steep decrease in the apparent survival of the male Black-headed Buntings. The lack of appropriate response in male Black-headed Buntings made them extremely vulnerable to attacks of this aerial predator.Effet lié à l'habitat d'un prédateur rare sur la survie apparente du Bruant mélanocéphale mâle RÉSUMÉ. Les modifications de l'habitat et la prédation peuvent tous deux être en cause dans les baisses de population d'oiseaux champêtres. Les modifications de l'habitat peuvent permettre à de nouveaux prédateurs ou des prédateurs étrangers envahissants d'établir des populations dans de nouveaux paysages, pouvant du coup entraîner des conséquences écologiques graves pour les espèces-proie indigènes. Nous avons étudié les effets d'un nouveau prédateur aviaire, le Busard cendré (Circus pygargus), sur la survie des Bruants mélanocéphales (Emberiza melanocephala) mâles. Entre 2011 et 2015, la survie de 35 Bruants mélanocéphales mâles territoriaux a été suivie et leur survie apparente avec ou sans prédateurs a été calculée selon les années. La survie apparente mensuelle (rapportée ± erreurtype) était très élevée au cours des saisons de nidification où le Busard cendré n'était pas présent (0,957 ± 0,035) ainsi qu'en dehors de la saison de reproduction (0,981 ± 0,011). Cette survie était très faible durant la saison de nidification de 2013 (0,600 ± 0,136) alors que le Busard cendré était présent dans le secteur. Les changements de la structure de l'habitat, attribuables aux modifications des pratiques agricoles, de même que les changements temporels des conditions météorologiques ont apparemment permis au Busard cendré de se reproduire dans l'aire d'étude et ont mené à l'augmentation de l'importance des oiseaux dans la diète du busard. L'apparition du Busard cendré dans l'aire d'étude a...

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Ecological consequences of amphibian larvae and their native and alien predators on the community structure of temporary ponds

Cited by 42 publications

References 57 publications

Naive tadpoles do not recognize recent invasive predatory fishes as dangerous

Naive tadpoles do not recognize recent invasive predatory fishes as dangerous

Predation and Competition Differentially Affect the Interactions and Trophic Niches of a Neotropical Amphibian Guild

Habitat-dependent effect of a rare predator on apparent survival of male Black-headed Bunting

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