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Updated: Oct 1, 2025

Experimental Manipulation of Body Size to Estimate Morphological Scaling Relationships in Drosophila

Experimental Manipulation of Body Size to Estimate Morphological Scaling Relationships in Drosophila

Published on: October 1, 2011

Substantial variability in morphological scaling among bumblebee colonies.

C D Perl^1,2, Z B Johansen¹, V W Jie¹

¹Department of Zoology, Stockholm University, Stockholm 106 91, Sweden.

Royal Society Open Science

|March 4, 2022

Summary

This summary is machine-generated.

Organ scaling varies within bumblebee colonies, impacting behavior and fitness. This study reveals significant differences in how compound eyes, wings, and antennae scale with body size across colonies of Bombus terrestris.

Keywords:

allometry bumblebee colony hive scaling

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Area of Science:

Ecology
Evolutionary Biology
Zoology

Background:

Intraspecific variation in organ scaling can influence behavioral differences.
While colony behavior varies in social insects, organ scaling differences within and between colonies are not well understood.

Purpose of the Study:

To investigate organ scaling relationships (compound eyes, wings, antennae) with body size in Bombus terrestris workers.
To determine if environmental factors, like rearing temperature, explain observed scaling differences.
To explore potential trade-offs in morphological investment and their implications for colony fitness.

Main Methods:

Collected data from 12 Bombus terrestris colonies.
Measured scaling relationships between compound eyes, wings, and antennae with body size in worker bees.
Analyzed differences in scaling slopes within and between colonies.

Main Results:

Significant variation in organ scaling relationships was found among Bombus terrestris colonies.
Rearing temperature did not account for the observed differences in scaling relationships.
Specific colonies exhibited distinct scaling slopes for wing-antenna, wing-eye, and eye-antenna pairs.
Differences in antennae scaling slopes were observed in three colonies, suggesting morphological investment trade-offs.

Conclusions:

Organ scaling is a source of variation within bumblebee colonies, independent of rearing temperature.
Variability in organ scaling has implications for understanding colony-level behavioral differences and fitness.
Further research can explore the functional consequences of these morphological trade-offs.