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Project Information

COLLABORATIVE RESEARCH: ADVANCING BAYESIAN PHYLOGENETIC METHODS FOR SYNTHESIZING PALEONTOLOGICAL AND NEONTOLOGICAL DATA

Agency:
NSF

National Science Foundation

Project Number:
1556701
Contact PI / Project Leader:
MEREDITH, ROBERT W
Awardee Organization:
MONTCLAIR STATE UNIVERSITY STUDENT GOVERNMENT

Description

Abstract Text:
Combining data from living species and the fossil record provides a rich perspective for understanding the evolutionary processes responsible for generating the biodiversity observed in nature. Although methods for combining these data have made significant advances, these approaches still do not consider the completeness and sampling of the fossil record or the geographical distributions of living and fossil species. For this project, the investigators will integrate statistical models for describing how fossils are sampled over time and where species are found. These models for estimating species relationships will be developed in widely used software packages, making them broadly accessible to other researchers. These new methods will be tested using both simulated and real datasets. Specifically, two vertebrate groups with rich fossil records will be studied: penguins and crocodyliforms (crocodiles, alligators, gharials, and extinct relatives). This work will help to uncover how rates of speciation and extinction have changed over time for these species. The methods developed as part of this project will be taught in workshops for evolutionary biologists. Additionally, results from analyses of data from living and fossil penguins will be contributed to a public museum exhibit at the Bruce Museum in Greenwich, CT. In recent years, advances in phylogenetic inference methods have provided ways to integrate fossil and extant taxa. These approaches allow simultaneous estimation of the divergence times and phylogenetic relationships of extant and fossil species, thus making full use of morphological and temporal data, rather than just molecular sequence data from living species. Approaches combining fossil and extant taxa have opened the door for fully integrative phylogenetic methods that use more sources of biological data, including stratigraphy, sampling, and biogeography. Thus, there is a need for comprehensive statistical models and methods that accommodate this information. The investigators will develop new, Bayesian statistical models, extensions of stochastic birth-death processes, that will integrate information about the fossil record and biogeography for use in phylogenetic methods that consider both extant and fossil taxa. The new models will be implemented in the program RevBayes. The performance and adequacy of new and previously described models will be evaluated using simulated and empirical datasets. New methods will be used to investigate macroevolutionary patterns in two exemplar clades: Sphenisciformes (penguins) and Crocodyliformes, addressing key hypotheses about phylogenetic relationships, lineage diversification, and biogeography.
Project Terms:
Address; Alligators; Bayesian Modeling; Biodiversity; Biological; Birth; Cessation of life; Computer software; Crocodylus; Data; Data Analyses; Data Set; Educational process of instructing; Educational workshop; Exhibits; Extinction (Psychology); Fossils; Life; Methods; Modeling; Molecular Sequence Data; Museums; Nature; Pattern; Performance; Phylogenetic Analysis; Process; programs; Records; Research; Research Personnel; Sampling; Source; Spheniscidae; Statistical Models; Taxon; Testing; Time; Work

Details

Contact PI / Project Leader Information:
Name:  MEREDITH, ROBERT W
Other PI Information:
Not Applicable
Awardee Organization:
Name:  MONTCLAIR STATE UNIVERSITY STUDENT GOVERNMENT
City:  MONTCLAIR    
Country:  UNITED STATES
Congressional District:
State Code:  NJ
District:  11
Other Information:
Fiscal Year: 2016
Award Notice Date: 29-Mar-2016
DUNS Number: 053506184
Project Start Date: 01-May-2016
Budget Start Date:
CFDA Code: 47.074
Project End Date: 30-Apr-2019
Budget End Date:
Agency: ?

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National Science Foundation
Project Funding Information for 2016:
Year Agency

Agency: The entity responsible for the administering of a research grant, project, or contract. This may represent a federal department, agency, or sub-agency (institute or center). Details on agencies in Federal RePORTER can be found in the FAQ page.

FY Total Cost
2016 NSF

National Science Foundation

$136,451

Results

i

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