Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

A brief introduction to Batrachochytrium salamandrivorans (Bsal) and the threat to southeastern taxa

792 views

Published on

Delivered by J.J. Apodaca on 14 August 2015 at a regional Bsal meeting in Asheville, NC, USA

Published in: Environment
  • Be the first to comment

  • Be the first to like this

A brief introduction to Batrachochytrium salamandrivorans (Bsal) and the threat to southeastern taxa

  1. 1. First  Southern  Appalachians  Batrachochytrium   salamandrivorans  (Bsal)  mee6ng  
  2. 2. History   •  First  discovered  in   The  Netherlands   (2013)   •  Reduced  infected   popula6ons  to  less   than  4%  
  3. 3. Effects  on  salamanders     •  Mul6focal  superficial   erosions  and  deep   ulcera6ons  all  over   the  body   •  Death  generally   occurs  in  under  2   weeks  aNer  a  short   episode  of  anorexia,   apathy,  and  ataxia  
  4. 4. Thermal  preference    
  5. 5. Threat  to  southern  Appalachian  species   •  Martel  et  al.  (2014)  tested  35  species  across  all   amphibian  orders  
  6. 6. Threat  to  southern  Appalachian  species   •  Threat-­‐  moderate   •  Temp  of  most  habitat  is  outside  of  ideal  growth  range   •  1  of  3  Hynobs  contracted  Bsal   •  Habitat  of  S.  keyserlingii-­‐  terrestrial  but  breed  in  permanent   pools  
  7. 7. Sirenidae     •  Threat  -­‐  moderate   •  Only  species  tested  does  contract  Bsal,  but   is  tolerant  
  8. 8. Ambystoma6ds   •  Threat-­‐  low   •  2  species  tested-­‐  both  tolerant   •  Larvae  suscep6bility  untested  
  9. 9. Salamandrids   •  Threat-­‐  extremely  high   •  Nearly  all  species  died  from  infec6on   •  Large  popula6ons  and  wide  spread-­‐  can  serve  as  a  reservoir   •  Both  terrestrial  and  aqua6c  forms  give  this  species  the   ability  to  rapidly  spread  Bsal  
  10. 10. Waterdogs  and  amphiumas   •  ???  
  11. 11. Dusky  and  climbing  salamanders   •  Threat-­‐  High   •  Bsal  was  lethal  in  Hydromantes,  which  is  very  similar   ecologically  to  Aneides   •  Desmogs  are  endemic  widely  spread  and  ecologically  diverse    
  12. 12. Woodland  Plethodon6ds   •  Threat-­‐  moderate  due   simply  to  the  number  of   species   •  Plethodon  glu:nosus  was   immune  
  13. 13. Splerpines     •  Threat-­‐  low  to   moderate   •  Gyrinophilus  was   immune     •  Again,  very  diverse  
  14. 14. Conclusions     •  Bsal  has  the  poten6al  to  decimate  southern   Appalachian  salamander  diversity  and  density   •  The  biggest  threats  appear  to  be  to  red   spo[ed  newts,  green  salamanders,  and  the   dusky  salamanders   •  We  need  a  lot  more  data  and  conserva6on   strategy  

×