Yearlong hibernation in a marsupial mammal

2007 ◽  
Vol 94 (11) ◽  
pp. 941-944 ◽  
Author(s):  
Fritz Geiser
Keyword(s):  
2004 ◽  
Vol 33 (1) ◽  
pp. 240-250 ◽  
Author(s):  
Robert J. Asher ◽  
Inés Horovitz ◽  
Marcelo R. Sánchez-Villagra

2015 ◽  
Vol 11 (6) ◽  
pp. 20150134 ◽  
Author(s):  
Clare Stawski ◽  
Gerhard Körtner ◽  
Julia Nowack ◽  
Fritz Geiser

Wildfires have increased in frequency and intensity worldwide with climate change as a main driving factor. While a number of studies have focused on population changes in regard to fires, there are essentially no quantitative data on behavioural and physiological adjustments that are vital for the persistence of individuals during and after fires. Here we show that brown antechinus, a small insectivorous marsupial mammal, (i) endured a prescribed fire in situ , (ii) remained in their scorched home range despite unburned areas nearby, and (iii) substantially increased post-fire torpor use and thus reduced foraging requirements and exposure to predators. Hence, torpor is a physiological adaptation that, although not quantified in this context previously, appears to play a key role in post-fire survival for this and other heterothermic species.


1995 ◽  
Vol 76 (3) ◽  
pp. 862 ◽  
Author(s):  
K. A. Nagy ◽  
C. Meienberger ◽  
S. D. Bradshaw ◽  
R. D. Wooller

Author(s):  
KAREN E. SEARS ◽  
ANKIT PATEL ◽  
MERLA HÜBLER ◽  
XIAOYI CAO ◽  
JOHN L. VANDEBERG ◽  
...  

BMC Biology ◽  
2010 ◽  
Vol 8 (1) ◽  
Author(s):  
Andrew J Pask ◽  
Natalie E Calatayud ◽  
Geoff Shaw ◽  
William M Wood ◽  
Marilyn B Renfree

1998 ◽  
Vol 72 (3) ◽  
pp. 532-537 ◽  
Author(s):  
Richard L. Cifelli ◽  
Christian De Muizon

Little is known of the non-dinosaurian fauna from the Cretaceous (Maastrichtian) part of the North Horn Formation, despite its biogeographic importance. Herein we describe a new marsupial mammal from the unit, founded on an exceptionally complete specimen of a juvenile individual, and present new information on the incisor region of early marsupials, based on comparison with complete specimens from the early Paleocene of Bolivia. Alphadon eatoni, new species, is the smallest Lancian species of the genus, and departs from a presumed marsupial morphotype in having the second lower incisor enlarged. The species is, however, primitive in lacking a “staggered” pattern to the incisor series and in having a labial mandibular foramen, and in these respects it differs from Paleocene and later marsupials. Poor representation of other taxa precludes meaningful comparison to most other North American Cretaceous marsupials, although Eodelphis, thought to be distantly related, also has an enlarged i2. Although Alphadon is characterized by many primitive features, the relative development of the incisors is not what would be predicted in a morphological antecedent to later Marsupialia.


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