Directional Asymmetry in the Amphibian Pectoral Girdle: Additional Data and a Brief Overview

Greer, Allen E.; Mills, Alison C.

doi:10.2307/1565619

Cited by 12 publications

(5 citation statements)

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“…The ability of an animal to right itself after being overturned has been described for a wide range of behavioural analyses -including the study of tool use in mol- luscs (Weldon and Hoffman, 1975), for measuring stress in chickens (Jones and Faure, 1981), and as an index of drug potency or chemical insult in various animal models, e.g., rats (Richter, Harris, and Hanford, 1982), mice (Markel, DeFries, and Johnson, 1995), adult frogs (Lapin, Oxenkrug, Osipova, and Uskova, 1970), tadpoles (Requintina, Oxenkrug, Yuwiler, and Oxenkrug, 1994;Firestone and Firestone, 1995;Downes and Courogen, 1996). Also termed the 'righting reflex' , righting is a postural response distinct from locomotive behaviour such as swimming and walking, which require the operation of different sets of spinal reflexes, or central pattern generators (Grillner and Wallen, 1985;Stehouwer, 1986;Golubitsky, Stewart, Buono, and Collins, 1999). In other words, the overturned animal is not using swimming or walking reflexes in an effort to right itself.…”

Section: Lateralized Use Of the Limbs In Righting Responses Righting mentioning

confidence: 99%

“…Different length and weights of the long bones in the hindlimbs was not once the subject of investigation in respect to the existing asymmetry (Singh, 1971;Greer and Mills, 1997). However, in these works a correlation between the skeleton and behavioural asymmetry was only hypothesised, and not tested experimentally.…”

Section: B Skeletal Morphology Of Limbs and Pelvic Girdlesmentioning

confidence: 99%

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Lateralized motor responses in anuran amphibians — an overview of methods and perspectives of studies

Malashichev

Robins

2018

BioComm

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Anuran amphibians represent the most usual subjects for experimental biological research and a divergent group of extant vertebrates comprising species adapted to a variety of environments from aquatic to arboreal. Thus, they become excellent models in research of motor lateralization due to their different phylogenetic position and their anatomical and ecological diversity throughout their evolutionary history, as well as variety of locomotive habits and a diversity of limb use during walking, swimming, feeding and other activities. From the first works in mid-1990's to the present day, a noticeable progress, a noticeable progress in the study of motor lateralization in anurans is made favored by a set of methodological approaches and their application to various species and life stages. Together, these advances foretell a plethora of interesting developments in the world of laterality research with the anuran amphibian model. Here, the discovery of right-pawedness in toads through the development of a set of different techniques to assess motor lateralization in anuran amphibians, and, as a consequence-important results revealing behavioral and morphological correlates are reviewed and discussed in evolutionary and eco-morphological perspective.

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Section: Lateralized Use Of the Limbs In Righting Responses Righting mentioning

confidence: 99%

Section: B Skeletal Morphology Of Limbs and Pelvic Girdlesmentioning

confidence: 99%

Lateralized motor responses in anuran amphibians — an overview of methods and perspectives of studies

Malashichev

Robins

2018

BioComm

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“…A recent reanalysis of published datasets revealed that the assumption of FA is often incorrect and that characters may actually exhibit directional asymmetry or antisymmetry (Rowe et al 1997). Directional asymmetry regularly occurs in the gonads of birds and other vertebrates (Meller 1994) and has recently been reported in various other vertebrate characters (Werner et al 1991;Alvarez 1995;Greer and Mills 1997). There are few records of directional asymmetry in insects, although it has been found in the wings of honeybees (Smith et al 1997), the forceps of earwigs (Tomkins andSimmons 1995, 1996) , TABLE 3.…”

Section: Correlates Of Mating Success In Malesmentioning

confidence: 99%

Size, Symmetry, and Sexual Selection in the Housefly, Musca domestica

Goulson¹,

Bristow²,

Elderfield³

et al. 1999

Evolution

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Relationships between measures of body size, asymmetry, courtship effort, and mating success were investigated in the housefly, Musca domestica (Diptera: Muscidae). A previous study indicated that both male and female flies with low fluctuating asymmetry enjoyed enhanced mating success. The aim of our investigations was to determine whether the greater success of symmetrical males is due to variation in male mating effort or to female choice and whether males exhibited mate choice. However, our study found directional rather than fluctuating asymmetry, with both male and female flies having, on average, longer left wings than right. Also, asymmetry was not related to mating success in either sex. Rather, both males and females appeared to exhibit choice on the basis of the size of potential mates, with males preferring females with long bodies and females preferring heavy males. Possible benefits from choice of large mates are discussed. The initial mating strikes (in which the male leaps onto the back of the female) did not appear to be targeted according to female morphology, and their frequency did not vary according to male morphology. This indicates that mate choice by both sexes according to size probably occurs during the later stages of courtship, when the flies are in intimate contact. Possible reasons for the absence of choice according to asymmetry are discussed.

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“…He considered that the asymmetry of the spiracle and anus in tadpoles may be possible candidates for this causal connection, but found that the position of neither of them correlates with girdle configuration. Indeed, the L.top/R.top ratio varies greatly between species of anurans (Borkhvardt & Ivashintsova, 1994;Borkhvardt & Malashichev, 1997;Greer & Mills, 1997;Martin, 1972), whereas the majority of them have a sinistral spiracle and little variation in vent tube position (Altig & McDiarmid, 1999). Table 1 shows data on the shoulder girdle asymmetry in three bufonid toads and a leptodactylid, Ceratophrys ornata, all of which have sinistral spiracle.…”

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confidence: 99%

Asymmetries in amphibians: A review of morphology and behaviour

Malashichev

2002

Laterality: Asymmetries of Body, Brain and Cognition

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Morphological and behavioural asymmetries in amphibians are reviewed. Among the characteristics considered are: (1) the asymmetry of the shoulder girdle (epicoracoid overlap); (2) the distribution of the left and right variants of its structure in amphibian populations; (3) asymmetry in the position of the spiracle(s); (4) asymmetric order of forelimb emergence from opercular chambers in tadpoles; and (5) preferential forelimb use in adult amphibians. I show that there are no direct cause-and-effect relationships between these characteristics, which would explain their development. Other asymmetries, such as asymmetry of the visceral organs, turning behaviour of tadpoles, asymmetries in the length and weights of the long bones, and some neuromorphological traits, also show few examples of relationships. However, the simultaneous absence of many asymmetries in some amphibians and their presence in others suggests a common cause, which affects all of these asymmetries indirectly, presumably very early in ontogenesis.

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Directional Asymmetry in the Amphibian Pectoral Girdle: Additional Data and a Brief Overview

Cited by 12 publications

References 0 publications

Lateralized motor responses in anuran amphibians — an overview of methods and perspectives of studies

Lateralized motor responses in anuran amphibians — an overview of methods and perspectives of studies

Size, Symmetry, and Sexual Selection in the Housefly, Musca domestica

Asymmetries in amphibians: A review of morphology and behaviour

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