Abstract:
:White-nose syndrome is devastating North American bat populations but we lack basic information on disease mechanisms. Altered blood physiology owing to epidermal invasion by the fungal pathogen Geomyces destructans (Gd) has been hypothesized as a cause of disrupted torpor patterns of affected hibernating bats, leading to mortality. Here, we present data on blood electrolyte concentration, haematology and acid-base balance of hibernating little brown bats, Myotis lucifugus, following experimental inoculation with Gd. Compared with controls, infected bats showed electrolyte depletion (i.e. lower plasma sodium), changes in haematology (i.e. increased haematocrit and decreased glucose) and disrupted acid-base balance (i.e. lower CO2 partial pressure and bicarbonate). These findings indicate hypotonic dehydration, hypovolaemia and metabolic acidosis. We propose a mechanistic model linking tissue damage to altered homeostasis and morbidity/mortality.
journal_name
Biol Lettjournal_title
Biology lettersauthors
Warnecke L,Turner JM,Bollinger TK,Misra V,Cryan PM,Blehert DS,Wibbelt G,Willis CKdoi
10.1098/rsbl.2013.0177subject
Has Abstractpub_date
2013-05-29 00:00:00pages
20130177issue
4eissn
1744-9561issn
1744-957Xpii
rsbl.2013.0177journal_volume
9pub_type
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