Factors Affecting Clutch Size in the Teiid Lizards Cnemidophorus tigris gracilis and C. t. septentrionalis

Taylor, Harry L.; Cooley, Christopher R.; Aguilar, Rose Ann; Obana, Carmeliza J.

doi:10.2307/1565121

Cited by 9 publications

(5 citation statements)

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“…We tested if clutch size and clutch mass relative to female body size decreases in colder climates (Predictions 5a and 5b) in Z. vivipara , the species which expands further to the north than any other reptile. Noteworthy, in lizards in general the opposite pattern, an increase of clutch size in colder climates, is obviously predominant (Fitch 1985; Taylor et al 1992; Vitt and Breitenbach 1993; Rocha et al 2002; references in these papers). Although the latter pattern was found in two viviparous species (Wapstra and Swain 2001; Rocha et al 2002), the vast majority of the species in those studies are oviparous that often produce multiple clutches in warmer climates.…”

Section: Introductionmentioning

confidence: 98%

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: Introductionmentioning

confidence: 98%

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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“…An additional difference between populations is the number of clutches per cycle, multiple in Ixtapan de la Sal (as in A. costatus barrancarum, Walker et al 2003) against a single clutch per reproductive season in Tonatico (López-Moreno et al 2016). As in other lizards including Aspidoscelis and Sceloporus (McCoy and Hoddenbach 1966;Dixon et al 1971;Taylor et al 1992;Lemos-Espinal et al 1998;Ramírez-Bautista et al 2011), this intraspecific variation in clutch size and number of clutches, could be explained for the difference in elevation, rainfall, temperature, and vegetation (Muñoz-Manzano 2010;López-Moreno et al 2016), although this is not true for all species or populations (Fitch 1985;Meiri et al 2013). The elongated body shape (typical of Aspidoscelis lizards) is one constraint on clutch size in the genus, but there may also be an added phylogenetic constraint in certain species (see Taylor et al 2006;Barley et al 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Due to their active foraging strategy, body shape, and escape strategies, species in the genus Aspidoscelis tend to show a relatively small clutch size, proportional to their body mass (Vitt and Breitenbach 1993). Previous studies have shown that both clutch size and number of clutches per cycle may vary in a species based on latitude or elevation (McCoy and Hoddenbach 1966;Dixon et al 1971;Taylor et al 1992); however, this does not apply to all Squamata species (Fitch 1985;Meiri et al 2013).…”

Section: Introductionmentioning

confidence: 97%

Aspidoscelis costatus costatus (Squamata, Teiidae): high elevation clutch production for a population of whiptail lizards

Granados-González¹,

Pérez-Almazán²,

Gómez-Benitez³

et al. 2020

Herpetozoa

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Clutch size and number of clutches per reproductive cycle are important life history traits that can be influenced by anatomical, physiological, evolutionary, and ecological factors. This report on the clutch size and number of clutches of an endemic Mexican whiptail lizard, Aspidoscelis costatus costatus (Cope, 1878), is based on a study of population at an unusually high elevation for a member of this genus. The study site is located in Ixtapan de la Sal, southeastern Estado de México, Central Mexico, at 2090 m a.s.l. Lizards were sampled in June 2006, and from May to July 2007, where females of Aspidoscelis costatus costatus were collected by hand along a drift fence. Female reproductive condition was evaluated based on abdominal palpation for presence of developing eggs; clutch size was determined by actual counts of either vitellogenic follicles or oviductal eggs. The smallest reproductive female was 77 mm snout-vent length; females produced a minimum of two clutches during the breeding season, the mean clutch size of 6.5 eggs (n = 33) was one of the largest reported for the genus. However, both length and width of its eggs, and the relative clutch mass have not been diminished by development of a large clutch. Additionally, comparisons of clutch size were undertaken within the polytypic A. costatus complex, within the genus Aspidoscelis, and between certain genera of whiptail lizards. This apparently represents the first study of whiptail lizards (genus Aspidoscelis), assessing the aforementioned reproductive characteristics, in a population above 2000 m.

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“…Αυτό δεν ισχύει στην περίπτωση του είδους Ρ. peloponnesiaca όπου οι δύο γέννες έχουν το ίδιο μέσο μέγεθος. Παρόμοια εικόνα παρουσιάζει και το είδος Cnemidophorus tigris (Teiidae) (Taylor et al 1992). Επειδή το μέγεθος της δεύτερης γέννας συνδέεται γενικά με την τροφική διαθεσιμότητα και τους άλλους πόρους που είναι διαθέσιμοι κατά την περίοδο του σχηματισμού και της ανάπτυξης αυτών των αυγών (Ballinger 1977), μπορούμε να υποθέσουμε ότι το είδος Ρ. peloponnesiaca, έχοντας ρυθμίσει έτσι τον αναπαραγωγικό του κύκλο ώστε να παράγει τη μία γέννα στις αρχές της άνοιξης και την άλλη έως τις αρχές του καλοκαιριού, εξασφαλίζει και στις δύο γέννες υψηλή τροφική διαθεσιμότητα τόσο για τα θηλυκά όσο και για τα νεοεκκολαπτόμενα μικρά, χωρίς να υποχρεώνεται να μεταβάλλει το μέγεθος της γέννας.…”

Section: αναπαραγωγικός κύκλος στα θηλυκά άτομαunclassified

“…Αντίθετα, λαμβάνοντας βέβαια υπόψη το ότι έχει μεγαλύτερο μέγεθος, το είδος αυτό πλησιάζει περισσότερο στο μέγεθος γέννας των νησιωτικών ειδών P. erhardii (Βαλάκος 1990) και P. milensis (Adamopoulou et al 1997). Τα αναπαραγωγικά χαρακτηριστικά ενός είδους, και συγκεκριμένα το μέγεθος της γέννας, επηρεάζονται όχι μόνο από εξελικτικούς αλλά και από οικολογικούς περιορισμούς, με αποτέλεσμα οικολογικά ανάλογα είδη, ανεξάρτητα από φυλογενετικές συγγένειες, να παρουσιάζουν συχνά ανάλογη αναπαραγωγική στρατηγική (Pianka 1973, Taylor et al 1992). (Brockelman 1975).…”

Section: αναπαραγωγικός κύκλος στα θηλυκά άτομαunclassified

ΣΥΓΚΡΙΤΙΚΗ ΜΕΛΕΤΗ ΤΗΣ ΟΙΚΟΛΟΓΙΑΣ ΤΩΝ ΣΥΜΠΑΤΡΙΚΩΝ ΕΝΔΗΜΙΚΩΝ ΕΙΔΩΝ ΣΑΥΡΩΝ ΤΗΣ ΠΕΛΟΠΟΝΝΗΣΟΥ LACERTA GRAECA BEDRIAGA1886 ΚΑΙ PODARCIS PELOPONNESIACA(BIBRON & BORY1833)

Μαραγκου¹

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Συγκριτική μελέτη της οικολογίας των συμπατρικών ενδημικών ειδών σαυρών της Πελοποννήσου Lacerta graeca Bedriaga, 1886 κα Podarcis peloponnesiaca (Bibron & Bory, 1833) Παναγιώτα Μαραγκού Διδακτορική Διατριβή Πάτρα, Σεπτέμβριος 1997 , -1 >f 2 -[ ΠΑΝΕΠΙΣΤΗΜΙΟ ΠΑΤΡΩΝ ΣΧΟΛΗ ΘΕΤΙΚΩΝ ΕΠΙΣΤΗΜΩΝ r -τ -MAR t ggg ΤΜΗΜΑ ΒΙΟΛΟΓΙΑΣ Συγκριτική μελέτη της οικολογίας των συμπατρικών ενδημικών ιδών σαυρών της Πελοποννήσου Lacerta graeca Bedriaga, 1886 και Podarcis peloponnesiaca (Bibron & Bory,

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Factors Affecting Clutch Size in the Teiid Lizards Cnemidophorus tigris gracilis and C. t. septentrionalis

Cited by 9 publications

References 9 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

Aspidoscelis costatus costatus (Squamata, Teiidae): high elevation clutch production for a population of whiptail lizards

ΣΥΓΚΡΙΤΙΚΗ ΜΕΛΕΤΗ ΤΗΣ ΟΙΚΟΛΟΓΙΑΣ ΤΩΝ ΣΥΜΠΑΤΡΙΚΩΝ ΕΝΔΗΜΙΚΩΝ ΕΙΔΩΝ ΣΑΥΡΩΝ ΤΗΣ ΠΕΛΟΠΟΝΝΗΣΟΥ LACERTA GRAECA BEDRIAGA1886 ΚΑΙ PODARCIS PELOPONNESIACA(BIBRON & BORY1833)

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