Abstract Detail

Biogeography

Naranjo, Andre [1], Soltis, Pamela  S. [2].

Dicerandra: Understanding Past Distributions.

Dicerandra (Lamiaceae) comprises nine species (Dicerandra christmanii, Dicerandra cornutissima, Dicerandra densiflora, Dicerandra frutescens, Dicerandra fumella, Dicerandra immaculata,Dicerandra linearifolia, Dicerandra modesta, Dicerandra thinicola, Dicerandra radfordiana) endemic to the southeastern United States. Species of Dicerandra are threatened or endangered and restricted to sand hill vegetation and a mosaic of scrub habitats, with some species (D. cornutissima, D. thinicola, D. immaculata, D. frutescens, D. christmanii, and D. radfordiana) being restricted to one or two sites in peninsular Florida and Georgia. Using locality and specimen data from iDigBio and other sources, we have applied ecological niche modeling to investigate shifts in abiotic niche space among species. Such shifts may have served as isolating mechanisms associated with speciation. These results will be used to reconstruct ancestral niche spaces when sea levels and climate were markedly different. We will make inferences on the possible ecological shifts and niche diversifications associated with speciation that have occurred during the evolution of the genus.

1 - University Of Florida, Florida Museum Of Natural History, PO BOX 117800, Gainesville, FL, 32611-7800, USA
2 - University Of Florida, Florida Museum Of Natural History, PO BOX 117800, Gainesville, FL, 32611-7800, USA, 352/273-1964

Keywords:
niche modelingĀ 
locality data
iDigBio.

Presentation Type: Poster
Session: P, Biogeography Posters
Location: Exhibit Hall/Savannah International Trade and Convention Center
Date: Monday, August 1st, 2016
Time: 5:30 PM This poster will be presented at 5:30 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PBG001
Abstract ID:95
Candidate for Awards:None