Temperature regulation in the tree shrew Tupaia glis

Comparative aspects of the metabolism and thermal biology of elephant‐shrews (Macroscelidea)

“…LOW or fluctuating T, are common amongst families of the Insectivora, including the Erinaceidae (T, = 34-35 OC; Shkolnik & Schmidt-Nielsen, 1976) and the Tenrecidae (Stephenson & Racey, 1993hb). The tupaiids, however, have low diurnal (35 "C) but high nocturnal (37 "C) T ' (Bradley & Hudson, 1974;Whittow & Gould, 1976), while soricids have high Tb (Dawson, 1973). While the metabolic rates of macroscelids approximate those of tupaiids, they differ in maintaining stable high Tb at Ta below the TNZ, which is likely an adaptation to a colder natural thermal environment.…”

Comparative aspects of the metabolism and thermal biology of elephant‐shrews (Macroscelidea)

“…LOW or fluctuating T, are common amongst families of the Insectivora, including the Erinaceidae (T, = 34-35 OC; Shkolnik & Schmidt-Nielsen, 1976) and the Tenrecidae (Stephenson & Racey, 1993hb). The tupaiids, however, have low diurnal (35 "C) but high nocturnal (37 "C) T ' (Bradley & Hudson, 1974;Whittow & Gould, 1976), while soricids have high Tb (Dawson, 1973). While the metabolic rates of macroscelids approximate those of tupaiids, they differ in maintaining stable high Tb at Ta below the TNZ, which is likely an adaptation to a colder natural thermal environment.…”

Small Tropical Mammals Can Take the Heat: High Upper Limits of Thermoneutrality in a Bornean Treeshrew

“…Data selection was heavily edited following Wolf et al (2017) to include only species with confirmed breakpoints in MR at the Tuc. These data (95 species) were supplemented with an additional three species from Riek and Geiser (Riek and Geiser 2013) as well additional data from tarsiers (Welman et al 2017a) and treeshrews (Bradley and Hudson 1974;Levesque et al 2018). We also recorded whether the studies reported evaporative water loss and if so, at what temperature evaporation increased (Supplementary Materials).…”

Behavioral thermoregulation in a gregarious lemur, Eulemur collaris: Effects of climatic and dietary‐related factors

“…The tight relationship between time allocated to resting, resting postures and seasonal changes seems to be a paramount thermoregulatory strategy and has been repeatedly observed in studies on lemurs (Morland, 1993; Pereira et al, 1999), on other primates (Stelzner and Hausfater, 1986; Schino and Troisi, 1990; Dasilva, 1993; Thompson et al, 1994; Bicca‐Marquez and Calegaro‐Marquez, 1998; Pochron, 2000; Hill et al, 2004; Hill, 2006; Hanya et al, 2007; Campos and Fedigan, 2009; Kosheleff and Anderson, 2009), and on mammals in general (Bradley and Hudson, 1974; Hasler and Sorenson, 1974; Körtner and Geiser, 2000). Our results show that seasonal fluctuations had a major role in shaping the four types of behavioral thermoregulation used by collared lemurs.…”

Comparative aspects of the metabolism and thermal biology of elephant‐shrews (Macroscelidea)

“…LOW or fluctuating T, are common amongst families of the Insectivora, including the Erinaceidae (T, = 34-35 OC; Shkolnik & Schmidt-Nielsen, 1976) and the Tenrecidae (Stephenson & Racey, 1993hb). The tupaiids, however, have low diurnal (35 "C) but high nocturnal (37 "C) T ' (Bradley & Hudson, 1974;Whittow & Gould, 1976), while soricids have high Tb (Dawson, 1973). While the metabolic rates of macroscelids approximate those of tupaiids, they differ in maintaining stable high Tb at Ta below the TNZ, which is likely an adaptation to a colder natural thermal environment.…”

Small Tropical Mammals Can Take the Heat: High Upper Limits of Thermoneutrality in a Bornean Treeshrew

“…Data selection was heavily edited following Wolf et al (2017) to include only species with confirmed breakpoints in MR at the Tuc. These data (95 species) were supplemented with an additional three species from Riek and Geiser (Riek and Geiser 2013) as well additional data from tarsiers (Welman et al 2017a) and treeshrews (Bradley and Hudson 1974;Levesque et al 2018). We also recorded whether the studies reported evaporative water loss and if so, at what temperature evaporation increased (Supplementary Materials).…”

Behavioral thermoregulation in a gregarious lemur, Eulemur collaris: Effects of climatic and dietary‐related factors

“…The tight relationship between time allocated to resting, resting postures and seasonal changes seems to be a paramount thermoregulatory strategy and has been repeatedly observed in studies on lemurs (Morland, 1993; Pereira et al, 1999), on other primates (Stelzner and Hausfater, 1986; Schino and Troisi, 1990; Dasilva, 1993; Thompson et al, 1994; Bicca‐Marquez and Calegaro‐Marquez, 1998; Pochron, 2000; Hill et al, 2004; Hill, 2006; Hanya et al, 2007; Campos and Fedigan, 2009; Kosheleff and Anderson, 2009), and on mammals in general (Bradley and Hudson, 1974; Hasler and Sorenson, 1974; Körtner and Geiser, 2000). Our results show that seasonal fluctuations had a major role in shaping the four types of behavioral thermoregulation used by collared lemurs.…”

Comparative aspects of the metabolism and thermal biology of elephant‐shrews (Macroscelidea)

“…LOW or fluctuating T, are common amongst families of the Insectivora, including the Erinaceidae (T, = 34-35 OC; Shkolnik & Schmidt-Nielsen, 1976) and the Tenrecidae (Stephenson & Racey, 1993hb). The tupaiids, however, have low diurnal (35 "C) but high nocturnal (37 "C) T ' (Bradley & Hudson, 1974;Whittow & Gould, 1976), while soricids have high Tb (Dawson, 1973). While the metabolic rates of macroscelids approximate those of tupaiids, they differ in maintaining stable high Tb at Ta below the TNZ, which is likely an adaptation to a colder natural thermal environment.…”

Small Tropical Mammals Can Take the Heat: High Upper Limits of Thermoneutrality in a Bornean Treeshrew

“…Data selection was heavily edited following Wolf et al (2017) to include only species with confirmed breakpoints in MR at the Tuc. These data (95 species) were supplemented with an additional three species from Riek and Geiser (Riek and Geiser 2013) as well additional data from tarsiers (Welman et al 2017a) and treeshrews (Bradley and Hudson 1974;Levesque et al 2018). We also recorded whether the studies reported evaporative water loss and if so, at what temperature evaporation increased (Supplementary Materials).…”

Behavioral thermoregulation in a gregarious lemur, Eulemur collaris: Effects of climatic and dietary‐related factors

“…The tight relationship between time allocated to resting, resting postures and seasonal changes seems to be a paramount thermoregulatory strategy and has been repeatedly observed in studies on lemurs (Morland, 1993; Pereira et al, 1999), on other primates (Stelzner and Hausfater, 1986; Schino and Troisi, 1990; Dasilva, 1993; Thompson et al, 1994; Bicca‐Marquez and Calegaro‐Marquez, 1998; Pochron, 2000; Hill et al, 2004; Hill, 2006; Hanya et al, 2007; Campos and Fedigan, 2009; Kosheleff and Anderson, 2009), and on mammals in general (Bradley and Hudson, 1974; Hasler and Sorenson, 1974; Körtner and Geiser, 2000). Our results show that seasonal fluctuations had a major role in shaping the four types of behavioral thermoregulation used by collared lemurs.…”