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Thermal ecology and activity patterns of the lizard community of the Restinga of Jurubatiba, Macaé, RJ 57
HATANO,F. H.; VRCIBRADIC,D.; GALDINO,C. A. B.; CUNHA-BARROS,M.; ROCHA,C. F. D.; VAN SLUYS,M..
We analyzed the thermal ecology and activity patterns of the lizard community from the Restinga of Jurubatiba, Rio de Janeiro, Brazil. The broadest activity was that of Tropidurus torquatus, a sit-and-wait forager, while the active foraging teiid Cnemidophorus littoralis had the shortest activity. The nocturnal gekkonid Hemidactylus mabouia was found active during the day only during early morning and late afternoon, when environmental temperatures are low. Body temperature was highest for Cnemidophorus littoralis and lowest for the two Mabuya species. The patterns found here are discussed and compared to those of congeneric species in other habitats in Brazil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Thermal ecology; Lizard community; Activity patterns; Restinga habitat.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000200011
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The lizard that never sleeps: activity of the pampa marked gecko Homonota uruguayensis 76
Vieira,Renata C.; Verrastro,Laura; Borges-Martins,Márcio; Felappi,Jéssica F..
ABSTRACT It is generally assumed that lizards are active whenever climatic conditions are favorable. Homonota uruguayensis (Vaz-Ferreira & Sierra de Soriano, 1961) is the only native gecko - and nocturnal lizard - living in the northern Pampa biome, and its ecology is poorly known. This study aimed at describing this species’ pattern of daily and annual activity and its relation with environmental temperatures. The study was conducted in the extreme south of Brazil (Rosário do Sul, State of Rio Grande do Sul), between May 2010 and January 2011 at a rocky outcrop located in the Pampa biome. The study was carried out in a total of four seasonal field trips, totalizing 1185 hours of field work. The data were collected, both during the day and the night in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nocturnal activity; Uruguayan savanna; Seasonality; Thermal ecology.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100211
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Living in a caatinga-rocky field transitional habitat: ecological aspects of the whiptail lizard Cnemidophorus ocellifer (Teiidae) in northeastern Brazil 103
Menezes,Vanderlaine A; Sluys,Monique Van; Fontes,Angélica F; Rocha,Carlos F. D.
The ecology of the active forager lizard Cnemidophorus ocellifer (Spix, 1825) was studied to analyze food habits, thermal ecology and habitat use, in the Morro do Chapéu municipality (11º29'S, 41º07'W), state of Bahia, Brazil. Lizards (N = 34) were collected with rubber bands or with an air rifle and, for each individual, we recorded cloacal temperature (Tc), air temperature (Ta) (1 cm above the substrate) and substrate temperature (Ts) (to nearest 0.2ºC). We registered the microhabitat used by each animal at the moment of first sight and measured its morphological variables (nearest 0.1 mm). In the laboratory, we registered the number of items of each prey category to the taxonomic level of Order, its dimensions and frequencies. Data showed that,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bahia; Cnemidophorus; Diet; Microhabitat; Thermal ecology.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000100002
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Daily and seasonal limits of time and temperature to activity of degus 97
KENAGY,G.J.; NESPOLO,ROBERTO F.; VÁSQUEZ,RODRIGO A.; BOZINOVIC,FRANCISCO.
We present an analysis of behavioral flexibility in a day-active caviomorph rodent, the degu, Octodon degus, in response to temporal (daily and seasonal), spatial, and thermal heterogeneity of its environment. We quantified activity and foraging behavior in a population, together with thermal conditions, in an open habitat in the seasonally hot and arid matorral of central Chile. Summer activity was bimodal, with a gap of more than 8 h between the morning bout of 2.5 h of intensive foraging and the afternoon bout of 2 h. More than half of the 4.5 h of summer activity occurred in the shade of early morning or late afternoon when the sun was below the local skyline. Autumn and spring activity were also bimodal, but with greater proportions of activity under...
Tipo: Journal article Palavras-chave: Foraging; Seasonality; Thermal ecology; Forrajeo.
Ano: 2002 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2002000300008
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Ecology of Mabuya agilis (Raddi) (Lacertilia, Scincidae) at the restinga of Grumari, Rio de Janeiro, southeastern Brazil 104
Vrcibradic,Davor; Rocha,Carlos Frederico Duarte.
Some aspects of the ecology of the skink Mabuya agilis (Raddi, 1823) at the restinga habitat of Grumari, in Rio de Janeiro, Brazil are studied. Most of the lizards were first sighted on the ground, though a few were using perches (mainly cacti) up to 30 cm high. Mean body temperature in activity was 33.1 ± 2.4ºC and was significantly correlated to air temperature. There was sexual dimorphism in size (snout-vent length - SVL), with females growing larger than males. Frequency of broken tails was high overall (83%) and did not differ between sexes. Females and males are sexually mature at 49 mm and 47 mm SVL, respectively. Brood size averaged 3.2 ± 1.0 (range 1-5) and was positively and significantly related to female SVL (r = 0.65, p = 0.001). Relative...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mabuya agilis; Lizard; Thermal ecology; Diet; Reproductive traits; Restinga habitat; Southeastern Brazil.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000600002
Registros recuperados: 5
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