How do viviparous and oviparous lizards reproduce in Patagonia? A comparative study of three species of Liolaemus

Medina, Marlín; Ibargüengoytía, Nora R.

doi:10.1016/j.jaridenv.2010.02.004

Cited by 28 publications

(18 citation statements)

References 37 publications

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“…Although this pattern of offspring size variation is in line with the ‘volume constraint hypothesis’ (Prediction 1a), this pattern was not common in previous studies. It was reported in none of the other two reproductively bimodal lizard species (Qualls and Shine 1995; Smith and Shine 1997) and in only two of the 7 lizard and snake genera in which oviparous and viviparous species were compared (Guillette 1982; Shine 1987; Medina and Ibargüengoytía 2010; Sun et al 2012; Yang et al 2012). …”

Section: Discussionmentioning

confidence: 98%

“…These predicted responses do not exclude one another, but each of them may have fitness costs. Only few studies compared life-history traits in conspecific populations (Qualls and Shine 1995; Smith and Shine 1997; Lindtke et al 2010) or related species (Guillette 1982; Shine 1987; Medina and Ibargüengoytía 2010; Sun et al 2012; Yang et al 2012) which differ in reproductive mode. Their results showed no clearly consistent pattern.…”

Section: Introductionmentioning

confidence: 99%

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Variation of Reproductive Traits and Female Body Size in the Most Widely-Ranging Terrestrial Reptile: Testing the Effects of Reproductive Mode, Lineage, and Climate

et al. 2013

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The European common lizard, Zootoca vivipara, is the most widespread terrestrial reptile in the world. It occupies almost the entire Northern Eurasia and includes four viviparous and two oviparous lineages. We analysed how female snout-vent length (SVL), clutch size (CS), hatchling mass (HM), and relative clutch mass (RCM) is associated with the reproductive mode and climate throughout the species range and across the evolutionary lineages within Z. vivipara. The studied variables were scored for 1,280 females and over 3,000 hatchlings from 44 geographically distinct study samples. Across the species range, SVL of reproductive females tends to decrease in less continental climates, whereas CS corrected for female SVL and RCM tend to decrease in climates with cool summer. Both relationships are likely to indicate direct phenotypic responses to climate. For viviparous lineages, the pattern of co-variation between female SVL, CS and HM among populations is similar to that between individual females within populations. Consistent with the hypothesis that female reproductive output is constrained by her body volume, the oviparous clade with shortest retention of eggs in utero showed highest HM, the oviparous clade with longer egg retention showed lower HM, and clades with the longest egg retention (viviparous forms) had lowest HM. Viviparous populations exhibited distinctly lower HM than the other European lacertids of similar female SVL, many of them also displaying unusually high RCM. This pattern is consistent with Winkler and Wallin’s model predicting a negative evolutionary link between the total reproductive investment and allocation to individual offspring.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Variation of Reproductive Traits and Female Body Size in the Most Widely-Ranging Terrestrial Reptile: Testing the Effects of Reproductive Mode, Lineage, and Climate

et al. 2013

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“…We recorded twenty morphological measurements, using a vernier calliper Â 0.02 mm, determined to be relevant to locomotion (Melville et al, 2006) and to be characteristic of allometric changes during ontogeny (Ibargüengoytía and Cussac, 1998;Medina and Ibargüengoytía, 2010): snout vent length (SVL); tail length and width; total length; head length and width; humerus length (distance from shoulder to apex of elbow) and diameter; antebrachium length (distance from elbow apex to wrist) and diameter; shoulder to wrist length; forefoot length (distance from wrist to claw tip of longest toe); shoulder to longest toe length; femur length (distance from insertion of hind leg at pelvis to apex of knee) and diameter; crus length (distance from apex of knee to heel) and diameter; hind leg to heel length; hind foot length (distance from heel to claw tip of longest toe); and hind leg to hind toe length.…”

Section: Allometric Aspects Of Run Speedmentioning

confidence: 99%

Performance and thermal sensitivity of the southernmost lizards in the world, Liolaemus sarmientoi and Liolaemus magellanicus

Fernández

Smith

Scolaro

et al. 2011

Journal of Thermal Biology

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“…Several refugia and phylogeographical breaks in Patagonia are hypothesized for this group of lizards, and interestingly several of these breaks are shared with other species of plants and rodents (Breitman et al ., ). Lizards of the L. lineomaculatus section, including both omnivorous and herbivorous species of small body size, are able to survive extreme thermal environments, an ability that has captured the attention of physiologists and behavioural scientists (Jacksic & Schwenk, ; Ibargüengoytía, Halloy & Crocco, ; Espinoza et al ., ; Pincheira‐Donoso, Hodgson & Tregenza, ; Ibargüengoytía et al ., ; Medina & Ibargüengoytía, ; Bonino et al ., ; Fernández et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Past and present taxonomy of theLiolaemus lineomaculatussection (Liolaemidae): is the morphological arrangement hypothesis valid?

2013

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Twenty‐one species of lizards are included in the southernmost clade of South America, the Liolaemus lineomaculatus section. There are two hypotheses of species‐grouping within this section, one based on morphological similarities and the other based on molecular phylogenetic relationships; although discordant, both are in use. The ‘morphological arrangement hypothesis’, which sorts the species of the section in three groups, was proposed ∼30 years ago; however, despite taxonomic changes and almost doubling the species diversity of this section since then, the hypothesis has never been tested. Here, we (1) present an updated chronological review of taxonomic changes, species descriptions, morphological groups, and genetic clades proposed for the L. lineomaculatus section, and (2) evaluate the accuracy of the ‘morphological arrangement hypothesis’. We show that the traditional practice of classifying 11 of these species in two of the three traditional morphological groups of the section (Liolaemus kingii and Liolaemus archeforus), which is not supported by molecular data, is also not supported by morphological data, and therefore should be abandoned; we suggest referring to this group of species as the L. kingii group. We characterized the Liolaemus magellanicus group based on morphology, and extend the previously published morphological characteristics of the L. lineomaculatus group. Finally, we comment on future prospects for studies of sexual dimorphism and its possible ecological implications. This paper provides a critical synthesis of our understanding of the morphological and phylogenetic patterns within the L. lineomaculatus section and presents a useful framework for future tests of taxonomic hypotheses and physiological, behavioural, and evolutionary questions within this section. © 2013 The Linnean Society of London

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How do viviparous and oviparous lizards reproduce in Patagonia? A comparative study of three species of Liolaemus

Cited by 28 publications

References 37 publications

Variation of Reproductive Traits and Female Body Size in the Most Widely-Ranging Terrestrial Reptile: Testing the Effects of Reproductive Mode, Lineage, and Climate

Variation of Reproductive Traits and Female Body Size in the Most Widely-Ranging Terrestrial Reptile: Testing the Effects of Reproductive Mode, Lineage, and Climate

Performance and thermal sensitivity of the southernmost lizards in the world, Liolaemus sarmientoi and Liolaemus magellanicus

Past and present taxonomy of theLiolaemus lineomaculatussection (Liolaemidae): is the morphological arrangement hypothesis valid?

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