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Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
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Integrating geographic ranges across temporal scales.

Simon A F Darroch1, Erin E Saupe2, Michelle M Casey3

  • 1Department of Earth and Environmental Sciences, Vanderbilt University, 5726 Stevenson Center, Nashville, TN 37240, USA; Evolutionary Studies Initiative, Vanderbilt University, Nashville, TN 37235, USA; Senckenberg Museum of Natural History, Frankfurt 60325, Germany.

Trends in Ecology & Evolution
|June 12, 2022
PubMed
Summary

Geographic ranges, whether from fossils or modern data, are time-averaged. This concept unifies paleontology and ecology, revealing long-term biodiversity patterns.

Keywords:
conservation paleobiologygeographic rangemacroecologymacroevolutionpaleontologytemporal scale

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Area of Science:

  • Biogeography
  • Macroecology
  • Paleontology
  • Evolutionary Biology

Background:

  • Geographic ranges are key units in biogeography and macroecology.
  • Paleontologists and ecologists reconstruct species ranges from fossils to study long-term patterns.
  • Uncertainty exists regarding the comparability of paleo-ranges and modern ranges.

Purpose of the Study:

  • To propose a conceptual framework for understanding geographic ranges across temporal scales.
  • To integrate the study of modern and fossil-derived species ranges.
  • To highlight how range studies illuminate diversity patterns over geological time.

Main Methods:

  • Conceptual synthesis of ecological and paleontological range data.
  • Time-averaging as a unifying principle for geographic ranges.
  • Analysis of biotic and abiotic factors influencing range dynamics.

Main Results:

  • Geographic ranges are inherently time-averaged at all temporal scales.
  • This time-averaging reflects biotic and abiotic processes across space and time.
  • A unified framework for studying ranges from days to millions of years is presented.

Conclusions:

  • The time-averaged nature of geographic ranges provides a bridge between paleo and modern ecological studies.
  • Understanding range dynamics across scales is crucial for predicting biodiversity patterns.
  • This framework enhances the study of macroevolutionary and biogeographic processes.