The Allometry of Reproduction: An Empirical View in Salamanders

Kaplan, Robert H.; Salthe, Stanley N.

doi:10.1086/283425

Cited by 214 publications

(130 citation statements)

References 32 publications

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“…A maneira de mensurar tal esforço consiste em estabelecer proporções como o peso de gônadas em relação ao peso do corpo ou o volume da desova em relação ao volume do corpo (GADGIL & BOSSERT, 1970;CRUMP, 1974;STEARNS, 1992). Em geral, o volume da desova está correlacionado com o tamanho da fêmea ou, mais diretamente, com o espaço disponível na sua cavidade abdominal (KAPLAN & SALTHE, 1979).…”

Section: Introductionunclassified

Padrão reprodutivo de Elachistocleis bicolor (Anura, Microhylidae) na Serra da Bodoquena, Mato Grosso do Sul, Brasil

Rodrigues

Lopes

Uetanabaro

2003

Iheringia, Sér. Zool.

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REPRODUCTIVEPATTERN OF ELACHISTOCLEIS BICOLOR (ANURA, MICROHYLIDAE) AT SERRA DA BODOQUENA, MATO GROSSO DO SUL, BRAZIL. The reproductive pattern of Elachistocleis bicolor (Guérin Méneville, 1838) was studied at Serra da Bodoquena, from October 2000 to September 2001. Reproduction occurred in the wet season (October to April) and was correlated to high continuous pluviometric precipitation. The species presents sexual size dimorphism, with females larger than males. The number of mature eggs per ovary was 620 ± 251 (n=39) and mature eggs measured 1.15 ± 0.30 mm (n=40). Elachistocleis bicolor presented significant relations between snout-vent length and number of mature eggs (n=39; r 2 =0.25; p=0.001), individual weight and number of mature eggs (n=41, r 2 =0.30; p=0.002), snout-vent length and ovarian weight (n=35; r 2 =0.47; p<0.01), and individual weight and ovarian weight (n=36; r 2 =0.55; p<0.01). Weight and volume are better to study size-fecundity relationships than snout-vent length. The females invested 22.7 ± 6.3 % (n=35) of their weights in reproduction and the variance associated to this variable was high, related to the reproductive mode of the species.

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Section: Introductionunclassified

Padrão reprodutivo de Elachistocleis bicolor (Anura, Microhylidae) na Serra da Bodoquena, Mato Grosso do Sul, Brasil

Rodrigues

Lopes

Uetanabaro

2003

Iheringia, Sér. Zool.

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“…Although current models of life-history tactics assume that reproductive parameters are free to co-evolve (Stearns, 1976), Stearns (1980) points out that many taxa exhibit strong allometric constraints which restrict the possible range of variability in reproductive effort relative to body size. Examples of allometric constraints in reproductive effort occur in some primates (Leutenegger, 1979), ungulates and subungulates (Robbins and Robbins, 1979), salamanders (Kaplan and Salthe, 1979), and some frogs (Kuramoto, 1978). Patterns of reproductive effort in Crustacea have been examined in varying detail in amphipods (Nelson, 1980;Van Dolah and Bird, 1980), anostracans (fairy shrimp) (Belk, 1977), barnacles (Barnes and Barnes, 1968;Hines, 1978Hines, , 1979, copepods (McLaren, 1966;McLaren et al, 1969;Palmer, 1980), cumaceans (Corey, 1981), hermit crabs (Bertness, 1981), hippid anomuran crabs (Diaz, 1980), isopods (Lawlor, 1976), lobsters (Morizur et al, 1981), mysids (Mauchline, 1973), and stomatopods (Reaka, 1979).…”

Section: Introductionmentioning

confidence: 99%

“…log reproductive parameters versus log body weight) in order to determine the relative independence of reproductive parameters (e.g. fecundity, brood, and egg size) from body size (Kaplan and Salthe, 1979;Sweet, 1980). Allometric analysis allows formulation of precise null hypotheses against which sample observations of very different-sized animals can be tested (Gould, 1966(Gould, , 1971(Gould, , 1975.…”

Section: Introductionmentioning

confidence: 99%

Allometric constraints and variables of reproductive effort in brachyuran crabs

1982

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Allometric relationships of reproductive output were compared in 20 species from 7 families of brachyuran crabs from the east and west coasts of North America, using regression analysis of log reproductive parameters versus log body weight. Comparisons of crabs spanning 4 orders of magnitude in body weight indicated that female body size was the principal determinant of reproductive output: 95% of the variance in brood weight, 79% of the variance in the number of eggs per brood, 63% of the variance in annual brood weight, and 74% of the variance in annual fecundity were explained by body weight. Brood weight exhibited an isometric constraint to about 10% of body weight. Allometric limitations on space available for yolk accumulation in the body cavity appeared to be the main constraint on brood size. Ovum size increased significantly, but only slightly, with increasing body size. There was a significant trade-off between ovum size and the number of eggs per brood. There was no significant relationship between the number of broods per year and body size. The number of eggs per brood was significantly better than brood weight as a predictor of the number of broods produced per year by a species, indicating that demographic pressure on fecundity rather than energetic considerations is the primary selective mechanism influencing annual reproductive effort. Each of the 7 families of crabs exhibited trends toward distinct patterns for the suite of co-adapted reproductive traits. However, no interspecific reproductive patterns were apparent with respect to the variables of feeding type, salinity tolerance, habitat, and geographic range represented by the 20 species.

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“…In Urodela, more than 60% of the species show larger SVLs in females than in males (Shine 1979), and large SVL in females is directly related to high fecundity (Trivers 1972;Kaplan and Salthe 1979). Body size dimorphism between the sexes can be influenced by several factors including the growth rate before metamorphosis, the adult growth rate (different energy allocations between growth and reproduction), age at sexual maturity, and the age structure (mean age) of the population (Marzona et al 2004).…”

Section: Discussionmentioning

confidence: 99%

Age structure and growth rates of two Korean salamander species (Hynobius yangiandHynobius quelpaertensis) from field populations

Lee

Min

Kim

et al. 2010

Animal Cells and Systems

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We studied and compared the age structure, body size, and growth rates of field populations of two Korean salamander species (Hynobius yangi and Hynobius quelpaertensis) to elucidate important aspects of basic population dynamics of these two endemic Hynobius species. In both populations, females were sexually mature at three years of age, while H. yangi and H. quelpaertensis males matured at two and three years of age, respectively. Both males and females of H. yangi and H. quelpaertensis attained a maximum age of 11 years and 10 years, respectively. In both species, the snout-vent length (SVL) and body weight (BW) of the females were greater than those of the males. The SVL, BW, and asymptotic SVL of both male and female H. yangi were smaller than those of H. quelpaertensis. The adult growth rates after sexual maturation of male and female H. yangi were lower than those of H. quelpaertensis, possibly resulting in the smaller body size of the former, although overall growth coefficients were not significantly different between the two species. We also compared the age structure and growth rates of three Korean and three Japanese species of Hynobius.

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The Allometry of Reproduction: An Empirical View in Salamanders

Cited by 214 publications

References 32 publications

Padrão reprodutivo de Elachistocleis bicolor (Anura, Microhylidae) na Serra da Bodoquena, Mato Grosso do Sul, Brasil

Padrão reprodutivo de Elachistocleis bicolor (Anura, Microhylidae) na Serra da Bodoquena, Mato Grosso do Sul, Brasil

Allometric constraints and variables of reproductive effort in brachyuran crabs

Age structure and growth rates of two Korean salamander species (Hynobius yangiandHynobius quelpaertensis) from field populations

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