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Related Concept Videos

What is Climate?01:16

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
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Global Climate Change

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All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.Multiple species cannot occupy the exact same niche within their habitat. If the niches of two or more species overlap to a large extent, the competitive exclusion principle dictates that one species will outcompete the other, forcing it to...

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Related Experiment Video

Updated: Jun 26, 2026

Using Generative Art to Convey Past and Future Climate Transitions
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Published on: March 31, 2023

Impact of an Updated Climate Database on Model Performance and Niche Variability in Species Distribution Modeling.

Jae-Woo Song1, Sunhee Yoon2, Sunghoon Jung3

  • 1Department of Smart Agriculture Systems Machinery Engineering Chungnam National University Daejeon Korea.

Ecology and Evolution
|June 25, 2026
PubMed
Summary

This study introduces an updated global climate database (1992-2021) for species distribution modeling (SDM). Using contemporary climate data improves predictive accuracy for ecological modeling and biosecurity decisions.

Keywords:
CLIMEXMaxEntclimatedatabase updatepotential distribution

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12:26

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling (SAHM)

Published on: October 11, 2016

Area of Science:

  • Ecology
  • Climate Science
  • Computational Biology

Background:

  • Species distribution modeling (SDM) often relies on outdated climate baselines, hindering accurate ecological predictions.
  • Mechanistic SDM frameworks like CLIMEX face challenges integrating contemporary climate data.
  • A temporally updated climate resource is crucial for modern ecological and biosecurity assessments.

Purpose of the Study:

  • To present an updated global climate database (1992-2021) compatible with CLIMEX and other SDM frameworks.
  • To evaluate the impact of updated climate data on species distribution models.
  • To enhance the integration of contemporary climate information into ecological modeling.

Main Methods:

  • Developed an updated global climate database (1992-2021) with bioclimatic variables.
  • Created CLIMEX and MaxEnt models for three species using both traditional (1961-1990) and updated (1992-2021) climate data.
  • Compared model performance, predicted distributions, and niche similarity between the two climate baselines.

Main Results:

  • While overall model performance was similar, localized habitat suitability and occurrence probabilities varied significantly with the updated climate data.
  • The updated climate baseline revealed noteworthy variability in habitat suitability compared to the traditional baseline.
  • Model predictions using contemporary climate data showed localized differences, emphasizing the need for synchronized data.

Conclusions:

  • Temporally synchronized climate and occurrence data are essential for reducing predictive uncertainty in species distribution modeling.
  • The updated climate database and workflows facilitate the use of current climate data across various SDM approaches.
  • This resource supports improved pest risk analysis, surveillance, and biosecurity decision-making under present environmental conditions.