Effects of early social isolation on the behaviour and performance of juvenile lizards, Chamaeleo calyptratus

  title={Effects of early social isolation on the behaviour and performance of juvenile lizards, Chamaeleo calyptratus
  author={Cissy J. Ballen and Richard Shine and Mats Olsson},
  journal={Animal Behaviour},
Early social environment influences the behaviour of a family-living lizard
There is evidence that isolation rearing does not consistently affect behaviour across all social taxa, and it is demonstrated that the social environment plays an important role in behavioural development of a family-living lizard.
Developmental plasticity in an unusual animal: The effects of incubation temperature on behavior in chameleons
Investigation of the effects of two incubation temperatures on the morphology and behaviour of hatchling veiled chameleons found cold-incubated animals were more sedentary, caught prey faster, and extended their tongues farther to reach prey than did their warm- incubated counterparts.
Sociality increases juvenile survival after a catastrophic event in the feral horse (Equus caballus)
This study is unique in that foals were separated from parental support at a crucial point in development, allowing it to separate the effects of parental behavior on juvenile response, and add to the understanding of the benefits afforded by juvenile social networks.
Effects of Rearing on the Behaviour of Zoo-Housed Chimpanzees (Pan troglodytes)
The results suggest that zoo-housed chimpanzees might benefit from minimised human-animal interactions and exposure to conspecifics throughout their development, and suggestions should be implemented in regular husbandry practices.
The impact of atypical early histories on pet or performer chimpanzees
It was found that chimpanzees who experienced less exposure to other chimpanzees as infants showed a lower frequency of grooming and sexual behaviors later in life which can influence social dynamics within groups, as in zoos and sanctuaries.
The ecological and life history correlates of boldness in free‐ranging lizards
Large monitor lizards exhibited a spectrum of boldness, as reflected in correlated scores of responses to approach, handling, and novel prey, which underpin much of the variation in ecological traits and individual fitness within this population.
Social isolation increases male aggression toward females in the field cricket Gryllus bimaculatus
The results showed that social isolation from same-sex individuals enhanced male aggressiveness to females, and the mating success of aggressive males was reduced under the experimental conditions, demonstrating that social relationships are a critical factor affecting male mating success, even if the species is normally considered solitary.
Does social environment influence learning ability in a family-living lizard?
The findings do not provide evidence that social environment affects development of spatial learning ability in this family-living lizard, and the facultative nature of this species’ social system may result in a reduced effect of social isolation on behaviour when compared to species with obligate sociality.
Cooperate or compete? Influence of sex and body size on sheltering behaviour in the wall lizard, Podarcis muralis
The results nevertheless suggest that cooperative behaviour may exist in wall lizards, and may reflect thermoregulatory or anti-predatory benefits.
The Veiled Chameleon (Chamaeleo calyptratus Duméril and Duméril 1851): A Model for Studying Reptile Body Plan Development and Evolution.
The veiled chameleon (Chamaeleo calyptratus) is an important model organism for studying the role of ecological niche specialization, as well as genetic and morphological evolution within an adaptive framework.


Effects of Early Social Isolation upon Adult Timidity and Dominance in Peromyscus
This investigation demonstrated that post-weaning social isolation has a differential effect upon adult dominance in two subspecies of wild deermice, Peromyscus maniculatus bairdii and Peromyscus
A Field Study of the Ontogeny of Social Behavior in the Lizard Anolis Aene Us
The spacing behavior, displays and aggression of hatchling and juvenile lizards (Anolis aeneus) were compared to the behavior of the adults. Tn adults these behaviors are sexually dimorphic, but
Kin discrimination in the social lizard Egernia saxatilis (Scincidae)
Experiments in which individuals were translocated among family groups revealed that this discriminatory ability was based on familiarity with other individuals rather than genetic relatedness, unlike the closely related (and also social) Egernia striolata.
Lizards in ‘nuclear families’: a novel reptilian social system in Egernia saxatilis (Scincidae)
The field studies on black rock skinks in southeastern Australia document similar patterns of group size, composition and relatedness, and reveal strong convergence towards ‘nuclear family’ systems in distantly related vertebrates.
Of Iguanas and Dinosaurs: Social Behavior and Communication in Neonate Reptiles
Newborn and newly hatched reptiles show diverse types of social behavior that casts doubt on inferences about a generalized reptilian level of social organization qualitatively inferior to that found in birds and mammals.
Longterm effects of incubation temperatures on the morphology and locomotor performance of hatchling lizards (Bassiana duperreyi, Scincidae)
It is suggested that incubation temperatures modified overall locomotor ability, with only a minor eVect on the set-point for optimum performance, and may play an important role in evolutionary and ecological processes within lizard populations.
Mother–offspring recognition in two Australian lizards, Tiliqua rugosa and Egernia stokesii
The presence of mother-oVspring recognition suggests that family groups may be a component in the social organization of these species, and olfactory cues are probably important for recognition.
Genetic evidence for a family structure in stable social aggregations of the Australian lizard Egernia stokesii
It is shown that stable aggregations of Egernia stokesii are comprised of breeding partners, their offspring from two or more cohorts, and related adults, providing the first genetic evidence of a family structure in any lizard species.
Coital behavior in dogs. 3. Effects of early isolation on mating in males.
Three groups of male beagles were reared from weaning to sexual maturity under special circumstances and their responses to estrous females were compared in a series of mating tests, which resulted in males achieving intromission in only 24 per cent of their tests.
Monogamy in lizards
  • C. Bull
  • Biology
    Behavioural Processes
  • 2000