Evolutionary conservation of within-family biodiversity patterns

Area of Science:

• Ecology
• Evolutionary Biology
• Community Ecology

Background:

• Species often retain ancestral biological traits.
• The influence of phylogenetic constraints on community-level properties needs more investigation.
• Understanding how relatedness impacts ecological patterns is crucial for community assembly studies.

Purpose of the Study:

• To determine if community-level patterns, such as species richness and turnover, are phylogenetically conserved.
• To assess if the similarity of these patterns across different families (lichens, insects, birds) is influenced by their evolutionary relatedness.
• To explore the scaling of phylogenetic effects from organismal to community levels.

Main Methods:

• Analyzed species richness and community similarity patterns along environmental gradients (elevation).
• Compared these patterns across different families within lichens, insects, and birds.
• Investigated the correlation between family relatedness and shared community patterns.

Main Results:

• A significant phylogenetic signal was found in the species richness-elevation curve and the decay of community similarity with elevation.
• Closely related families exhibited similar community patterns across the studied taxa.
• Phylogenetic influences were partly explained by conserved traits related to body plan and interactions.

Conclusions:

• Phylogenetic relatedness shapes community-level ecological patterns.
• Historical legacy and shared environmental responses among related taxa are key drivers of community assembly and diversity.
• Phylogenetic effects scale from individual organisms to entire communities.