Comportamento De Termorregulação Em Lagartos Brasileiros

Abstract

Um dos mais complexos mecanismos de regulação da temperatura corpórea é encontrado entre os répteis, e nos lagartos, este mecanismo atinge um destacável grau de refinamento em que o comportamento é um fator preponderante. no presente artigo apresentamos uma revisão do conjunto de elementos envolvidos no comportamento de termorregulação em lagartos brasileiros. nesta ampla revisão abordamos aspectos como a termorregulação como processo fisiológico e comportamental nos lagartos, o efeito e a relação entre a filogenia e a temperatura corpórea em atividade, as fontes ambientais de calor, a termorregulação e os custos associados na regulação comportamental da temperatura corpórea, a complexa interrelação entre temperatura corpórea, intensidade de forrageamento e dieta, e a relação entre a termorregulação e outros aspectos da história de vida como o grau de herbivoria e o estado reprodutivo. Com base nas mais variadas fontes de informação disponíveis sobre regulação da temperatura corpórea em lagartos brasileiros, fornecemos também uma relevante revisão sobre o tema e um estado da arte do conhecimento sobre o comportamento de termorregulação nos lagartos brasileiros. Palavras-chave: Temperatura corpórea, intensidade de atividade, processos fisiológicos. ABSTRACT THERMOREGULATORY BEHAVIOR IN BRAZILIAN LIZARDS. reptiles present one of the most complex mechanisms found within vertebrates to regulate body temperature. in lizards, this regulation mechanism achieves a remarkable degree of refinement in which behavior plays a crucial role. The present review deals with a set of factors of thermoregulation in Brazilian lizards, illustrating it as the result of a physiological and behavioral process in lizards and discussing other factors such as the relationship between phylogeny and body temperature in activity, the environmental sources of heat, the costs of behaviors associated with thermoregulation, the complex relationships between body temperature, foraging intensity and diet, and the relationship between thermoregulation and some aspects of their life history such as degree of herbivory and reproductive condition. Based on various sources of information available on body temperature regulation by Brazilian lizards, we aimed at providing a comprehensive review on the subject of thermoregulatory behaviors in Brazilian lizards.

Uso do hábitat, períodos diários de atividade e ecologia térmica de Ameiva ameiva (Squamata: Teiidae) em uma área de caatinga do nordeste do Brasil.

“…The relatively short activity period of Ameiva ameiva restricted to the hottest times of day (between 0900 and 1500) is another trend found in teiid lizards (Rocha et al 2009 The decline in the abundance of active adult lizards in the dry season seems to be related to rainfall seasonality, as demonstrated by the positive correlations between monthly rainfall and number of individuals observed per hour each month. Adult lizards were most abundant at the peak of the rainy season, whereas abundance in the dry season declined to the point that almost no adults were sighted in the three driest months, only juveniles.…”

Status of Early 19th-Century Names Authored in Parallel by Wied and Schinz for South American Reptiles and Amphibians, with Designations of Three Nomina Protecta

“…The following 25 references meet the criteria quoted above: Adeoye and ogunbanwo, 2007;Cabrera, 2004;Colli et al, 2003aColli et al, , 2003bColli et al, , 2009Dias and Rocha, 2004;Dias et al, 2002;feltrim and lema, 2000;giugliano et al, 2006;Menezes et al, 2000Menezes et al, , 2004aMenezes et al, , 2004bMesquita and Colli, 2003;Peccinini-Seale et al, 2004;Peloso et al, 2008;Reeder et al, 2002;Ribeiro et al, 2007;Rocha et al 1997Rocha et al , 1999Rocha et al , 2005Rocha et al , 2008Rocha et al , 2009Vrcibradic et al, 2002.…”

Body orientation for thermoregulation and daily activity cycle of Mabuya macrorhyncha (Squamata: Scincidae)

“…Such adjustments include alternating between sunny and shaded microhabitats, or between sites with higher and lower environmental temperatures (Hertz 1992, Castilla et al 1999, Maia-Carneiro and Rocha 2013. Also, individuals increase or reduce sunlight exposure on their bodies by adjusting their body posture and orientation while basking (Gandolfi and Rocha 1998, Castilla et al 1999, Rocha et al 2009). …”

“…Individuals control their time of activity and body temperatures by increasing and decreasing their movement rates in response to thermal conditions and by performing behavioral adjustments (Hatano et al 2001, Rocha et al 2009, Maia-Carneiro et al 2012, 2017. Such adjustments include alternating between sunny and shaded microhabitats, or between sites with higher and lower environmental temperatures (Hertz 1992, Castilla et al 1999, Maia-Carneiro and Rocha 2013.…”