[Study on associated plants and spatial distribution pattern of Dipsacus asperoides populations]

Area of Science:

• Ecology
• Botany
• Plant Community Structure

Background:

• Understanding plant community composition and distribution is crucial for ecological studies.
• Dipsacus asperoides is a significant species within its natural distribution area.
• Previous research on the ecological characteristics of D. asperoides communities is limited.

Purpose of the Study:

• To identify associated species within the Dipsacus asperoides community.
• To determine the population distribution pattern of D. asperoides.
• To analyze the vegetation structure and dominant families in the study area.

Main Methods:

• Utilized the quadrat method for sampling across 32 plots in the main natural distribution area of D. asperoides.
• Identified and cataloged all species within the sample plots.
• Applied statistical methods, including variance/mean ratio and seven aggregation intensity indices, to analyze distribution patterns.

Main Results:

• Documented 156 associated species belonging to 131 genera and 60 families, with Asteraceae and Rosaceae being dominant.
• Observed that most associated species occurred at low frequencies.
• Confirmed a significant clustered distribution pattern for D. asperoides populations using multiple statistical indices.

Conclusions:

• The Dipsacus asperoides community is characterized by a high diversity of associated species, though many are infrequent.
• The population distribution of D. asperoides exhibits a clear clustered pattern, indicating specific ecological requirements or interactions.
• Herbaceous and shrub species constitute the majority of the vegetation, shaping the overall community structure.