Presenters-0457: Difference between revisions

Revision as of 11:13, 25 April 2020

CSDMS 2020: Linking Ecosphere and Geosphere

Life in Landscape Evolution Models: Investigations of Climate and Tectonics as Drivers of Biological Evolution

Nathan Lyons
Tulane University, United States
nlyons@tulane.edu

Abstract
Climate and tectonics ultimately drive the physical and chemical surface processes that evolve landscape structure, including the connectivity of landscape portions that facilitate or impede movement of organismal populations. Connectivity controls population spatial distribution, drives speciation where populations spatially fragment, and increases extinction susceptibility of species where its habitat shrinks. Here I demonstrate the role that landscape evolution models can have in exploring these process linkages in investigations of species diversification driven by climatic and tectonic forcings. The models were built with the tool, SpeciesEvolver that constructs lineages in response to environmental change at geologic, macroevolutionary, and landscape scales. I will also suggest how future studies can use landscape evolution models and tools such as SpeciesEvolver to pursue questions regarding the mechanisms by which lineages respond to the drivers and details of landscape evolution, and taxon-specific and region-specific interactions between biotas and their environments.

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Of interest for:

Terrestrial Working Group

Coastal Working Group

Education and Knowledge Transfer (EKT) Working Group

Cyberinformatics and Numerics Working Group

Hydrology Focus Research Group

Carbonates and Biogenics Focus Research Group"Carbonates and Biogenics Focus Research Group" is not in the list (Terrestrial Working Group, Coastal Working Group, Marine Working Group, Education and Knowledge Transfer (EKT) Working Group, Cyberinformatics and Numerics Working Group, Hydrology Focus Research Group, Chesapeake Focus Research Group, Critical Zone Focus Research Group, Human Dimensions Focus Research Group, Geodynamics Focus Research Group, ...) of allowed values for the "Working group member" property.

Critical Zone Focus Research Group

Human Dimensions Focus Research Group

Ecosystem Dynamics Focus Research Group

Artificial Intelligence & Machine Learning Initiative

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-|CSDMS meeting abstract presentation=The lineages of species are developed by environmental change, notably by topographic change. The evolution of landscape relief structure alters population spatial distribution, drives speciation where populations spatially fragment, and increases extinction susceptibility of species where its habitat shrinks. SpeciesEvolver is a new modeling tool that constructs lineages in response to environmental change at geologic, macroevolutionary, and landscape scales. The tool tracks species geographic range and evaluates macroevolutionary rules built into the tool or defined by the software user. SpeciesEvolver is built into the Landlab modeling toolkit that contains surface processes components. Meaning, software users can readily build models to explore landscape-life links. Here, I demonstrate SpeciesEvolver functionality with models that illustrate how a landscape with few species can evolve into a biodiversity hotspot following changes in climate and tectonics. Future studies can use SpeciesEvolver to pursue questions regarding the mechanisms by which lineages respond to the drivers and details of landscape evolution, taxon-specific and region-specific interactions between biotas and their environments, and biotic impacts on landscapes.
+|CSDMS meeting abstract presentation=Climate and tectonics ultimately drive the physical and chemical surface processes that evolve landscape structure, including the connectivity of landscape portions that facilitate or impede movement of organismal populations. Connectivity controls population spatial distribution, drives speciation where populations spatially fragment, and increases extinction susceptibility of species where its habitat shrinks. Here I demonstrate the role that landscape evolution models can have in exploring these process linkages in investigations of species diversification driven by climatic and tectonic forcings. The models were built with the tool, SpeciesEvolver that constructs lineages in response to environmental change at geologic, macroevolutionary, and landscape scales. I will also suggest how future studies can use landscape evolution models and tools such as SpeciesEvolver to pursue questions regarding the mechanisms by which lineages respond to the drivers and details of landscape evolution, and taxon-specific and region-specific interactions between biotas and their environments.
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