Response of a native endangered axolotl, Ambystoma mexicanum (Amphibia), to exotic fish predator

@article{Alcaraz2015ResponseOA,
  title={Response of a native endangered axolotl, Ambystoma mexicanum (Amphibia), to exotic fish predator},
  author={Guillermina Alcaraz and Xarini L{\'o}pez-Portela and Cecilia Robles-Mendoza},
  journal={Hydrobiologia},
  year={2015},
  volume={753},
  pages={73-80}
}
The axolotl (Ambystoma mexicanum) is a critically endangered and threatened species endemic of the Central Valley of Mexico. [...] Key Result Axolotls decreased their activity and increased their use of refuge in the presence of combined chemical and visual cues from the predator. The axolotls seem to use their vision to confirm the level of risk perceived through chemical signals to modulate their antipredator response accordingly.Expand

Figures from this paper

Turbidity effects on feeding by larvae of the endemic Ambystoma mexicanum and the introduced Oreochromis niloticus in Lake Xochimilco, Mexico
TLDR
Results indicate that turbidity decreases the visual ability during the larval stages of A. mexicanum which in turn influences its capacity to compete against the invasive fish, resulting in a decrease in the population of the former under natural conditions.
Native fish, Cichlasoma istlanum, hide for longer, move and eat less in the presence of a non-native fish, Amatitlania nigrofasciata
TLDR
It is hypothesized that convict fish can negatively affect the fitness of the former where the two species co-occur, and experimentally studied the behavioral responses of the latter when exposed to the former.
Genetic diversity and structure of two populations of Ambystoma altamirani and A. rivulare of the trans-Mexican volcanic belt.
TLDR
The goal of this study was to provide data from the population genetics of two micro-endemic mole salamanders that can be used as a basis for future research and conservation planning of these species and other amphibian species of this region of Mexico.
Behavioural patterns of two native Leiopelma frogs and implications for their conservation
TLDR
This work investigated activity, movement behaviour and microhabitat use of L. archeyi and L. pakeka for better evaluation of long term population viability and improved husbandry in captivity, and examined the indirect impacts ship rats (Rattus rattus) may have on this species.
A global meta-analysis of the ecological impacts of alien species on native amphibians
TLDR
A global meta-analysis of the impacts of alien species on native amphibians to determine which aspects of amphibian ecology are most affected by plant, invertebrate, fish, amphibian, reptile, or mammal introductions suggests that future introductions or global spread of alien invertebrates could strongly exacerbate current amphibian declines.
Historical museum collections help detect parasite species jumps after tilapia introductions in the Congo Basin
TLDR
This study focuses on introduced tilapias, Oreochromis niloticus and Coptodon rendalli in the Congo Basin and their monogenean (Platyhelminthes) gill parasite fauna and investigates the co-introduction and host switching of their parasites.
Genetic diversity and structure of two endangered mole salamander species of the Trans-Mexican Volcanic Belt
TLDR
The goal of this study was to provide data from the population genetics of two micro-endemic mole salamanders from the Trans-Mexican Volcanic Belt to propose better management plans and conservation efforts for these species.
Mexican mojarra can dominate non-native convict cichlids even when outnumbered
Abstract The non-native, aggressive, convict cichlid Amatitlania nigrofasciata is often regarded as a cause for the decline of native Mexican mojarra Cichlasoma istlanum in Mexican rivers. Convict
Linking vertebral number to performance of aquatic escape responses in the axolotl (Ambystoma mexicanum).
TLDR
The results show that the most important aspects of escape swim performance are consistent across individuals regardless of developmental temperature and morphological variation, and that developmental temperature did not have any effect on C-start performance.
Toads modulate flight strategy according to distance to refuge.
TLDR
It is suggested that threatened toads respond firstly with slow, intermittent movements, and only shift to less intermittent, faster sprints if the threat persists, suggesting straighter flight toward the refuge when it is close.
...
1
2
...

References

SHOWING 1-10 OF 70 REFERENCES
Food web overlap among native axolotl (Ambystoma mexicanum) and two exotic fishes: carp (Cyprinus carpio) and tilapia (Oreochromis niloticus) in Xochimilco, Mexico City
TLDR
Stable isotope analysis revealed substantial trophic niche overlap among axolotl and the exotics, suggesting higher levels of omnivory and diet specialization.
Effects of predaceous and nonpredaceous introduced fish on the survival, growth, and antipredation behaviours of long-toed salamanders
TLDR
The results imply that allotopic distributions of trout and salamanders observed in several field surveys likely result from the inability of larvae to recognize introduced predators as a threat.
Differential vulnerability to predation and refuge use in competing larval salamanders
TLDR
The results demonstrate the importance of refugia to coexistence in this predator-prey assemblage and suggest that predation by A. opacum may mediate prey competition; that is, preferential consumption of A. maculatum may reduce the competitive impact of this superior forager on A. talpoideum, thus enhancing their coexistence.
Avoidance response of a terrestrial salamander (Ambystoma macrodactylum) to chemical alarm cues
TLDR
It is concluded that the response to injured conspecifics represents avoidance of a chemical alarm cue and notavoid of a territorial pheromone or predator cue.
[The feeding ecology of the endemic fish Girardinichthys multiradiatus (Cyprinidontiformes: Goodeidae) in Lagunas of Zempoala National Park, Mexico].
TLDR
The gut contents of 97 specimens were identified to the most specific taxonomic category possible and analyzed with numeric and frequency of occurrence methods, finding that G. multiradiatus is as a carnivorous species with entomophagous tendencies.
Interactions between fish and salamander larvae
TLDR
The experiment suggests that predator-prey relationships can change with shifts in species attributes and potentially confound apparent costs of predator avoidance with competition, and measuring the long-term dynamics of the cost-benefit relationship will help elucidate how prey balance the demands of their life history with the offers of predators.
Combined Effects of Virus, Pesticide, and Predator Cue on the Larval Tiger Salamander (Ambystoma tigrinum)
TLDR
Results show significant impacts to survival of larvae for both virus and predator cue treatments, as well as an interactive effect between the two, in which predator cue strongly exacerbated disease-driven mortality.
Iberian green frog tadpoles may learn to recognize novel predators from chemical alarm cues of conspecifics
TLDR
Tadpoles learnt to perceive the fish cues as risky when these were previously associated with alarm cues, in a similar way as they reduced movement in the presence of predatory snake cues.
Non‐Native Fish Introductions and the Decline of the Mountain Yellow‐Legged Frog from within Protected Areas
TLDR
The strong effect of introduced fishes on mountain yellow-legged frogs appears to result from the unique life history of this amphibian, which frequently restricts larvae to deeper water bodies, the same habitats into which fishes have most frequently been introduced.
Persistence and extirpation in invaded landscapes: patch characteristics and connectivity determine effects of non-native predatory fish on native salamanders
TLDR
Developing habitat-based occupancy models for the long-toed salamander and non-native fish using survey data from 1,749 water bodies across 470 catchments in the Northern Rocky Mountains, USA could be useful as a framework for improved investigations into questions of persistence and extirpation of native species when non- native species have already become established.
...
1
2
3
4
5
...