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Climatic niche comparison across a cryptic species complex.

Qing Zhao1, Hufang Zhang2, Jiufeng Wei1

  • 1Department of Entomology, Shanxi Agricultural University, Taigu, Shanxi, P. R. China.

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|June 12, 2019
PubMed
Summary
This summary is machine-generated.

This study maps the distribution of seven cryptic species within the Chionaspis pinifoliae heterophyllae complex using climate data. Findings support niche conservatism and higher overlap in sympatric populations, aiding insect control.

Keywords:
Climatic nicheCryptic speciesENMPCA-env

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Entomology

Background:

  • The Chionaspis pinifoliae heterophyllae species complex comprises 10 cryptic species based on molecular evidence.
  • Understanding the distribution and ecological niches of these cryptic species is crucial for effective pest management.

Purpose of the Study:

  • To construct potential distribution maps for seven cryptic species of Chionaspis pinifoliae heterophyllae.
  • To identify key environmental factors influencing species distribution.
  • To assess niche overlap and evolutionary patterns (conservatism vs. divergence) among cryptic species.

Main Methods:

  • Utilized MaxEnt software to build climatic niche models for seven cryptic species.
  • Employed climatic variables to predict potential species distributions.
  • Analyzed niche similarities and differences across species.

Main Results:

  • Generated potential distribution maps revealing parapatric, sympatric, and allopatric population structures.
  • Observed high variability in niche overlap, with a tendency towards niche conservatism over divergence.
  • Results supported current molecular species delimitation and the hypothesis of greater niche overlap in sympatric populations.

Conclusions:

  • The study validates molecular data for Chionaspis pinifoliae heterophyllae species delimitation.
  • Findings indicate niche conservatism is more prevalent than niche divergence within the complex.
  • Provides essential baseline data for targeted control strategies and quarantine measures against these insect pests.