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Communication Dans Un Congrès Année : 2016

Using structured decision making and category count models to develop optimal policies for imperiled salamander habitat restoration

Katie O'Donnell
  • Fonction : Orateur
  • PersonId : 1019400
Fred Johnson A.
  • Fonction : Collaborateur
  • PersonId : 1018922
Mathieu Bonneau
Julien Martin
  • Fonction : Collaborateur
  • PersonId : 1019401
Paul Fackler
  • Fonction : Collaborateur
  • PersonId : 1019402
Susan Walls
  • Fonction : Collaborateur
  • PersonId : 1019403

Résumé

Frosted flatwoods salamanders, Ambystoma cingulatum, are federally-listed pond-breeding salamanders that inhabit wetlands embedded in pine-wiregrass ecosystems. They have likely declined due to widespread destruction of longleaf pine ecosystems and habitat degradation due to fire suppression. To explicitly address the uncertainty regarding necessary management actions for flatwoods salamander recovery, we held a structured decision making (SDM) workshop to develop an adaptive management framework for habitat restoration at one of the last strongholds for A. cingulatum-- St. Marks National Wildlife Refuge. We identified the need for state-dependent decisions, and defined possible states as combinations of habitat suitability (unsuitable (U) or suitable (S)) and occupancy (occupied (O) or unoccupied (U)), resulting in 4 combinations (S/O, S/U, U/O, U/U). We defined potential management actions for each state, and used expert elicitation to generate transition probabilities between states under two management portfolios: (A) a “future status quo” of frequent growing season burns, and (B) additional actions such as head-starting and fine-scale restoration. We then used a stochastic dynamic programming approach known as a category count model to develop a preliminary optimal management policy.
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Dates et versions

hal-01606263 , version 1 (02-10-2017)

Identifiants

  • HAL Id : hal-01606263 , version 1
  • PRODINRA : 405554

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Katie O'Donnell, Fred Johnson A., Mathieu Bonneau, Julien Martin, Paul Fackler, et al.. Using structured decision making and category count models to develop optimal policies for imperiled salamander habitat restoration. 101 st ESA Annual Meeting Ecological Society of America, Aug 2016, Fort Lauderdale, Floride, United States. ⟨hal-01606263⟩
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