Demographic Importance of the Life-Cycle Components in<i>Sceloporus grammicus</i>

Pérez-Mendoza, Hibraim Adán; Zúñiga‐Vega, J. Jaime; Zurita-Gutiérrez, Yazmín H.; Fornoni, Juan; Solano‐Zavaleta, Israel; Hernández‐Rosas, Ana L.; Molina-Moctezuma, Alejandro

doi:10.1655/herpetologica-d-12-00038r2

Cited by 14 publications

(8 citation statements)

References 94 publications

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“…Our study also revealed similarities in microhabitat and perch height use. This supports variations found in studies of S. grammicus of populations focused on genetics (Arévalo et al 1991;Marshall et al 2006 Bastiaans et al 2013b;Lozano et al 2014Lozano et al , 2015 and life history (Ramírez-Bautista et al 2004, 2005Pérez-Mendoza et al 2013. Nonetheless, future studies are needed regarding population ecology and functional ecology to enhance our understanding of how morphological characteristics operate in the different environments that these populations of S. grammicus inhabit.…”

Section: Sexual Dimorphismsupporting

confidence: 67%

“…S. grammicus is a viviparous species widely distributed in Mexico (Arévalo et al 1991), ranging across the hottest regions of the Mexican Plateau (Sites et al 1992). Its wide geographic distribution in Mexico and high variation in morphological (Lara- Góngora 2004;Leyte-Manrique et al 2006), ecological (Lemos & Ballinger 1995Leyte-Manrique et al 2007;Leyte-Manrique 2011), reproductive (Hernández-Salinas et al 2010Lozano et al 2014Lozano et al , 2015, life history (Ramírez-Bautista et al 2004, 2005Pérez-Mendoza et al 2013, demographic (Zuñiga-Vega et al 2008;Pérez-Mendoza et al 2013 and genetic characteristics (Arévalo et al 1993(Arévalo et al , 1994Marshall et al 2006) indicate that this represents a species complex and a possible speciation scenario (Arévalo et al 1991).…”

Section: Introductionmentioning

confidence: 99%

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Habitat use in eight populations of Sceloporus grammicus (Squamata: Phrynosomatidae) from the Mexican Plateau

Leyte-Manrique¹,

Hernández‐Salinas

Ramírez‐Bautista

et al. 2017

Integrative Zoology

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Studies on habitat use have often helped explain observed variation in morphology, behavior and reproductive characteristics among populations within a single species. Here we analyze morphological and ecological characteristics of individuals from the Sceloporus grammicus species complex from 7 different localities (CER, El Cerezo; PAC, Pachuca; HUI, Huichapan; EZA, Emiliano Zapata; SMR, San Miguel Regla; LMJ, La Mojonera; and LMZ, La Manzana) in the state of Hidalgo, and one locality (Cahuacán) in the State of Mexico. A canonical correspondence analysis (CCA) showed that females from PAC, EZA, LMZ, HUI, SMR and CAH populations use similar microhabitats characterized mostly by bare soil, in females from LMJ and CER use microhabitats characterized primarily by vegetation and rocks. Females were observed using 12 different types of perches. With regard to perch height use, the CCA showed that females from PAC, LMJ, LMZ, SMR, CER and CAH populations were correlated with height to nearest perch (HNP), in the rest of the females were not related to any perch use variable. In contrast, the CCA showed that males from PAC, LMJ and CAH were characterized by microhabitats with higher vegetal coverage, while males from LMZ and CER used microhabitats composed of bare soil, but males from HUI and SMR populations used microhabitats composed chiefly of bare soil and rocks. With respect to perch height use, the CCA showed that males from PAC, LMJ, EZA and LMZ were correlated with distance to the nearest perch, but the rest of the males were not correlated with any perch use variables. Males were observed in 9 different perch types. The males were larger than the females in all morphological variables analyzed. Moreover, in both sexes the snout-vent length is positively correlated with all morphological variables, and although both the slope and ordinate of the origin of all morphological variables were larger in males than females, the analysis of covariance indicated that there is no increase in the morphological variables with increasing SVL between sexes. Our results suggest that variation in habitat use and morphology among populations is an adaptive response (phenotypic plasticity) to the environmental conditions where these populations of Sceloporus grammicus occur.

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Section: Sexual Dimorphismsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Habitat use in eight populations of Sceloporus grammicus (Squamata: Phrynosomatidae) from the Mexican Plateau

Leyte-Manrique¹,

Hernández‐Salinas

Ramírez‐Bautista

et al. 2017

Integrative Zoology

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“…In this study, we found that minimum size of males at sexual maturity was smaller (33 mm) than females (37 mm). It has been shown that between‐sex size differences at sexual maturity could be due to age‐biased patterns of mortality (Ruby & Dunham, 83) and/or growth rates (Cox & John‐Adler, 11; Lemos‐Espinal & Ballinger, 37; Lemos‐Espinal, Ballinger, & Smith, 38; Pérez‐Mendoza & Zúñiga‐Vega, 55; Pérez‐Mendoza et al, 56, 57), both of which are greater and faster in males (Cox, 10; Hernández‐Salinas & Ramírez‐Bautista, 28; Smith & Ballinger, 89). Larger SVL and morphological structures such as head size in males could be beneficial during social interactions (Carpenter, 7; Cooper & Greenberg, 9; Hernández‐Salinas et al, 30; Ramírez‐Bautista et al, 75; Scharf & Meiri, 84), and in defending their territories against conspecific males (Cox et al, 12; Olsson, 52).…”

Section: Discussionmentioning

confidence: 99%

Reproduction and sexual dimorphism in the viviparous lizard Sceloporus palaciosi (Squamata: Phrynosomatidae) from the Trans‐Mexican Volcanic Belt, Mexico

et al. 2019

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“…In contrast to aridity, human-induced disturbance did not affect female survival. We expected higher overall survival in disturbed habitats because S. grammicus is relatively abundant in sites with human constructions and agricultural fields (Pérez-Mendoza et al 2013). Furthermore, we expected smaller reductions in female survival during the birthing season in disturbed sites compared to pristine sites because if these lizards are abundant in disturbed sites, then resource availability must be higher in such sites, making reproduction a less costly process.…”

Section: Effects Of Aridity and Human-induced Disturbancementioning

confidence: 96%

“…We expected lower survival during reproductive seasons as well as more severe decreases in survival in drier than in mesic sites. Given that S. grammicus is abundant in disturbed habitats such as urban areas or agricultural fields (Pérez-Mendoza et al 2013), we expected relatively higher survival during both reproductive and non-reproductive periods in disturbed sites compared to pristine sites. This predicted higher survival might result from lower predation risk and higher food availability in sites where humans have modified the original vegetation (Ditchkoff et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Patterns of spatio‐temporal variation in the survival rates of a viviparous lizard: the interacting effects of sex, reproductive trade‐offs, aridity, and human‐induced disturbance

Pérez-Mendoza¹,

Zúñiga‐Vega²,

Martorell³

et al. 2014

Population Ecology

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Examination of the spatial and temporal variation in survival rates provides insight on how the action of natural selection varies among populations of single species. In this study, we used mark‐recapture data from seven populations of the viviparous lizard Sceloporus grammicus in Central Mexico and a multi‐model inference framework to examine interpopulation variation in the survival of adult males and females. We aimed to analyze the potential effects of aridity, human‐induced disturbance, and reproductive costs on the survival rates of these lizards. For females in particular, we also searched for a negative relationship between litter size (adjusted for female size) and female survival. Our results demonstrate seasonal changes in survival for males and females. In three out of our seven study sites female survival decreased during the birthing season. In contrast, male survival did not appear to decrease during the mating season. We found an interaction between site‐specific aridity and reproductive season affecting female survival. A decrease in female survival during the birthing season was observed in relatively arid sites. In one of these arid sites we found a negative effect of size‐adjusted litter size on female survival: females producing more offspring than those expected for their size were more likely to die. This result represents evidence of a physiological trade‐off for gravid females occurring in at least one of the studied populations. Interpopulation variation in the degree of human‐induced disturbance could not explain the observed patterns of spatial variation in survival rates. Our results demonstrate wide variation in sex‐specific survival patterns of this viviparous lizard and provide evidence that negative associations between reproduction and survival are highly dependent on the local environmental conditions.

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Demographic Importance of the Life-Cycle Components inSceloporus grammicus

Cited by 14 publications

References 94 publications

Habitat use in eight populations of Sceloporus grammicus (Squamata: Phrynosomatidae) from the Mexican Plateau

Habitat use in eight populations of Sceloporus grammicus (Squamata: Phrynosomatidae) from the Mexican Plateau

Reproduction and sexual dimorphism in the viviparous lizard Sceloporus palaciosi (Squamata: Phrynosomatidae) from the Trans‐Mexican Volcanic Belt, Mexico

Patterns of spatio‐temporal variation in the survival rates of a viviparous lizard: the interacting effects of sex, reproductive trade‐offs, aridity, and human‐induced disturbance

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