Carrying Progeny on the Back: Reproduction in the Brazilian Aquatic Frog<i>Pipa carvalhoi</i>

Fernandes, Tatiana L.; Antoniazzi, Marta Maria; Sasso-Cerri, Estela; Egami, Mizue Imoto; Lima, Carla; Rodrigues, Miguel Tréfaut; Jared, Carlos

doi:10.2994/057.006.0302

Cited by 13 publications

(8 citation statements)

References 20 publications

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“…Cases are in fact abundant. For example, numerous amphibian species have evolved male ‘pregnancy traits’, such as back skin forming brood chambers that serve as nests (Greven & Richter, ; Fernandes et al , ; Vitt & Caldwell, ), inguinal pouches (Ehmann & Swan, ), or legs adapted to carry developing eggs (Marquez, ). Also, a quite unique case of male pregnancy is ‘neomely’.…”

Section: Fecundity Selection On Malesmentioning

confidence: 99%

Fecundity selection theory: concepts and evidence

2015

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Fitness results from an optimal balance between survival, mating success and fecundity. The interactions between these three components of fitness vary depending on the selective context, from positive covariation between them, to antagonistic pleiotropic relationships when fitness increases in one reduce the fitness of others. Therefore, elucidating the routes through which selection shapes life history and phenotypic adaptations via these fitness components is of primary significance to understanding ecological and evolutionary dynamics. However, while the fitness components mediated by natural (survival) and sexual (mating success) selection have been debated extensively from most possible perspectives, fecundity selection remains considerably less studied. Here, we review the theoretical basis, evidence and implications of fecundity selection as a driver of sex-specific adaptive evolution. Based on accumulating literature on the life-history, phenotypic and ecological aspects of fecundity, we (i) suggest a re-arrangement of the concepts of fecundity, whereby we coin the term 'transient fecundity' to refer to brood size per reproductive episode, while 'annual' and 'lifetime fecundity' should not be used interchangeably with 'transient fecundity' as they represent different life-history parameters; (ii) provide a generalized re-definition of the concept of fecundity selection as a mechanism that encompasses any traits that influence fecundity in any direction (from high to low) and in either sex; (iii) review the (macro)ecological basis of fecundity selection (e.g. ecological pressures that influence predictable spatial variation in fecundity); (iv) suggest that most ecological theories of fecundity selection should be tested in organisms other than birds; (v) argue that the longstanding fecundity selection hypothesis of female-biased sexual size dimorphism (SSD) has gained inconsistent support, that strong fecundity selection does not necessarily drive female-biased SSD, and that this form of SSD can be driven by other selective pressures; and (vi) discuss cases in which fecundity selection operates on males. This conceptual analysis of the theory of fecundity selection promises to help illuminate one of the central components of fitness and its contribution to adaptive evolution.

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Section: Fecundity Selection On Malesmentioning

confidence: 99%

Fecundity selection theory: concepts and evidence

2015

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“…Cases are in fact abundant. For example, numerous amphibian species have evolved male ‘pregnancy traits’, such as back skin forming brood chambers that serve as nests (Greven & Richter, 2009; Fernandes et al, 2011; Vitt & Caldwell, 2014), inguinal pouches (Ehmann & Swan, 1985), or legs adapted to carry developing eggs (Marquez, 1993). Also, a quite unique case of male pregnancy is ‘neomely’.…”

Section: Fecundity Selection On Malesmentioning

confidence: 99%

Fecundity selection theory: concepts and evidence

Pincheira‐Donoso

Hunt

2015

Preprint

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Fitness results from the optimal balance between survival, mating success and fecundity. The interactions between these three components of fitness vary importantly depending on the selective context, from positive covariation between them, to antagonistic pleiotropic relationships when fitness increases in one reduce fitness of others. Therefore, elucidating the routes through which selection shapes life history and phenotypic adaptations via these fitness components is of primary significance to understand ecological and evolutionary dynamics. However, while the fitness components mediated by natural (survival) and sexual (mating success) selection have extensively been debated from most possible perspectives, fecundity selection remains considerably less studied. Here, we review the theory, evidence and implications of fecundity selection as a driver of sex-specific adaptive evolution. Based on accumulating literature on the life-history, phenotypic and ecological aspects of fecundity, we (i) suggest that ‘fecundity’ is restricted to refer to brood size per reproductive episode, while ‘annual’ and ‘lifetime fecundity’ should not be used interchangeably with ‘fecundity’ as they represent different life history parameters; (ii) provide a generalized redefinition of fecundity selection that encompasses any traits that influence fecundity in any direction (from high to low) and in either sex; (iii) review the (macro)ecological basis of fecundity selection (e.g., ecological pressures that influence predictable spatial variation in fecundity); (iv) suggest that most ecological theories of fecundity selection should be tested in organisms other than birds; (v) argue that the longstanding fecundity selection hypothesis of female-biased sexual size dimorphism (SSD) has gained inconsistent support, that strong fecundity selection does not necessarily drive female-biased SSD, and that this form of SSD can be driven by other selective pressures; and (vi) discuss cases in which fecundity selection operates on males.

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“…We do not know if there is a correlation between gut size and tail vascularization; if it does indeed exist, perhaps it could indicate a role in nutrient absorption from the wall of the brood chamber once the yolk stored in the embryo´s intestine is depleted. Fernandes et al (2011) argued in favor of some type of interaction between embryonic and maternal tissues in P. carvalhoi. This suggestion was based on the presence of a large number of blood capillaries in the skin of the embryo, and a thin epidermis lacking a stratum corneum and a heavily vascularized dermis forming the walls of the brood chambers (Greven andRichter 2009, Fernandes et al 2011).…”

Section: Pipa Arrabali Staging Table 1883mentioning

confidence: 99%

“…Examples of this reproductive mode are found amongst brachycephalids (Pombal Jr et al 1994), eleutherodactylids (Townsend and Stewart 1985), hemiphractids (Del Pino and Escobar 1981); pipids Cannatella 1986, Fernandes et al 2011), and rhacophorids (Kerney et al 2007). In the Neotropical pipid frogs of the genus Pipa, small clutches of eggs develop in brood chambers temporarily formed in the skin of female's back , Trueb and Cannatella 1986, Fernandes et al 2011). The eggs hatch as tadpoles OLívIA G.S.…”

mentioning

confidence: 99%

A simplified table for staging embryos of the pipid frog Pipa arrabali

Araújo

Haddad

Silva

et al. 2016

An. Acad. Bras. Ciênc.

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Pipa is a Neotropical genus of frogs that dwell in freshwater environments. It includes four species that lack free-swimming larvae (P. aspera, P. arrabali, P. pipa, and P. snethlageae) and three with tadpoles (P. carvalhoi, P. myersi, and P. parva). Developmental tables such as the one proposed by Nieuwkoop and Faber might be useful for Pipa species with tadpoles. However, for the other Pipa species, to determine stages by this table or by any of the tables already prepared for frogs without tadpoles (e.g., Crinia nimbus, Eleutherodactylus coqui, and Oreobates barituensis) is impossible. By using embryonic, juvenile, and subadult specimens, we generated a staging table for P. arrabali, from the moment limb buds were first observed until birth, based on diagnostic features such as snout-vent length; growth, morphology, and reabsorption of the external tail; growth and differentiation of fore and hind limbs; development of intestine and vent tube; position of the angle of the mouth relative to nostrils and eyes; and color of preserved individuals. Based on these observations, we discuss some noteworthy traits (e.g., posture of hands and feet). We also compare the pattern of development of P. arrabali with that of other anuran species (with and without tadpoles).

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Carrying Progeny on the Back: Reproduction in the Brazilian Aquatic FrogPipa carvalhoi

Cited by 13 publications

References 20 publications

Fecundity selection theory: concepts and evidence

Fecundity selection theory: concepts and evidence

Fecundity selection theory: concepts and evidence

A simplified table for staging embryos of the pipid frog Pipa arrabali

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