author={Robert Brodman and Jeanette M. Jaskula},
We evaluated five species of the genus Ambystoma in laboratory aquaria to quantify the effect of other larvae on microhabitat use and activity. We studied microhabitat use by partitioning containers into microhabitats that either contained or lacked refuges and recorded movement to determine activity. All five species altered microhabitat preferences and activity levels when they shared tanks with larvae of most species. The smallest species (A. laterale and A. maculatum) spent the most time in… 

Species-Specific Patterns of Agonistic Behavior among Larvae of Three Syntopic Species of Ambystomatid Salamanders

It is concluded that characteristic responses are associated with species-specific morphological and developmental features and the temporally staggered pattern in which these species appear in ponds and highlight the importance of these traits to behavioral divergence among ecologically similar taxa occurring in sympatry.

The effects of sunfish on spotted salamander oviposition, hatching time, and larval survival

It is found that, unless a female avoids depositing eggs with fish, one fish species can have profound effects on larval amphibian persistence, and small-scale fish introductions for recreation can act as a potential source for reduced recruitment and an increased risk of local extinction.

The effects of predator chemical cues on the behavior of spotted salamander larvae ( Ambystoma maculatum ) BIOS 35502 : Practicum in Field

The detection of kairomones, or chemical cues released by hunting predators, is an important ability of prey that allows them to exhibit anti-predator behavior, thus increasing their chance of

Oviposition Site Selection by Spotted Salamanders (Ambystoma maculatum) in an Isolated Wetland

This study suggests that A. maculatum select oviposition sites actively, rather than ovipositing in all available microhabitat, implying that vegetation structure and hydrology of ephemeral wetlands are important for the successful reproduction of this species.

Seasonal trends in aggression among sympatric larval salamanders: the roles of habitat-mediation and behavioural conservatism

Overall, species-specific influences of habitat conditions appeared to supersede behavioural similarities predicted by phylogenetic inertia, and the results indicate the potential for variance in ecological function among species regarded as functionally equivalent.

Observations on habitat preference of juvenile eastern hellbender salamanders (Cryptobranchus alleganiensis)

This study provides preliminary evidence on the behavior of these cryptic larval salamanders, suggesting that they prefer cobble substrate and are unable to utilize embedded cobble, which has management implications for juveniles of this species.

Ontogenetic Patterns of Agonistic Behavior in a Guild of Larval Ambystomatid Salamanders

It is hypothesized that the observed patterns of behavior may represent a baseline level of aggression upon which other biotic and abiotic factors act in mediating coexistence among larval amphibians.

Competing for crevices: interspecific conflict influences retreat-site selection in montane lizards

It is concluded that direct agonistic encounters between individuals of different species strongly influence habitat use by lizards within this assemblage of broadly sympatric species of viviparous montane skinks.

Threat of predation alters aggressive interactions among spotted salamander (Ambystoma maculatum) larvae

Investigating interactions experimentally using larval salamanders as prey and dragonfly nymphs as predators concluded that multitrophic indirect effects may importantly modulate intraspecific aggression and should be considered when evaluating the effects of intrapecific competition.



Effects of Intraguild Interactions on Fitness and Microhabitat Use of Larval Ambystoma Salamanders

Results indicate that A. maculatum is a more behaviorally variable species which is hypothesized to be a factor in the success of this widespread and common salamander species.

Predator Avoidance and Diel Patterns of Microhabitat Use by Larval Tiger Salamanders

Field and laboratory experiments with larvae in the presence and absence of beetles demonstrated that larvae were responsive to changes in predation risk and altered their patterns of microhabitat use to minimize encounter rates with beetles.

Interdemic Variation in Predation on Salamander Larvae

It was concluded that interpond and interyear differences may be important in the ability of A. maculatum to coexist with A. opacum in nature.

Differential vulnerability to predation and refuge use in competing larval salamanders

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.

Predation and Competition in Ambystoma Larvae: Field and Laboratory Experiments

The data suggest that the two species are probably more affected in nature by the predator-prey relationship than by interspecific com- petition.

Nonlethal Effects of a Predator on Competitive Interactions Between Two Anuran Larvae

It is argued that the reductions in activity in the presence of the predator affected the two species differently, which in turn changed competitive interactions, and led to an activity-mediated trade-off between growth rate and predation risk to interactions among anuran larvae.

Effects of Larval Density in Ambystoma Opacum: An Experiment Large‐Scale Field Enclosures

In natural ponds, the importance of intraspecific competition is dependent upon hydroperiod, and the intensity of competition influences predation risk, suggesting that both density—dependent and density—independent factors affect body size and recruitment of larval A. opacum into the adult population.

Aggression and exploitation as mechanisms of competition in larval salamanders

The results suggest that coexistence between these two species of larval salamanders results from a trade-off between exploitative and aggressive superiorities.

Effects of Variation Body Size on Intraspecifc Competion among Larval Salamanders

Variation in body size does not lead to a reduction in the negative effects of competition, and under purely exploitative competition for small prey, larger larvae are not superior competitors; larger larvae do not have a size advantage in physical interactions, but physical interactions may be minimized under field conditions even when density adversely affects larval growth.

Ecological Aspects of Syntopic Larvae of Ambystoma maculatum and the A. laterale-jeffersonianum Complex in Two New Jersey Ponds

  • S. Nyman
  • Environmental Science, Biology
  • 1991
Body growth, ontogenetic development, and diet of syntopic larvae of A. laterale-jeffersonianum complex salamanders are compared at two New Jersey ponds in 1977 to confirm that the breeding periods of these salamander species were sequential, but overlapping.