---
name: "PhDDissertation"
description: "Expertise in analyzing behavioral and physiological variations in social insects through transcriptomic and pharmacological methodologies."
tags: ["entomology", "phd-dissertation", "pogonomyrmex-barbatus", "collective-behavior", "transcriptomics", "behavioral-ecology"]
---

# PhD: Behavioral, Physiological, and Transcriptomic Variation Among Colonies of *Pogonomyrmex barbatus*

**Daniel Ari Friedman** (2019) · Entomology

## Instructions

Use this skill when working with topics related to **PhD dissertation, Pogonomyrmex barbatus, collective behavior, transcriptomics**.

When applying this skill:
1. Conduct integrative multilevel studies of social insect biology
1. Apply RNA-Seq and qRT-PCR to behavioral ecology questions
1. Design colony-level field studies with molecular-level resolution

## Key Concepts

- **PhD dissertation**
- **Pogonomyrmex barbatus**
- **collective behavior**
- **transcriptomics**
- **behavioral ecology**
- **foraging gene**
- **dopamine**
- **colony variation**
- **Stanford University**

## Methods & Techniques

- Conducted transcriptomic profiling of forager brains to assess gene expression differences.
- Performed pharmacological experiments to evaluate the effects of dopamine on foraging behavior.
- Executed manipulative field experiments to study foraging trips in relation to hydration levels.
- Utilized RNA-seq to analyze gene expression variation within and among colonies.

## Key Findings

- Significant differences in brain biogenic amine titers were found among colonies.
- Increased dopamine levels correlated with heightened foraging activity.
- Foragers from colonies that reduced foraging in dry conditions exhibited faster water loss and motor coordination decline.
- Gene expression patterns were linked to colony traits and evolutionary constraints.

## Prerequisites

- Evolutionary biology and ecology fundamentals
- Social insect biology and colony organization

## 🎯 Consulting & Tutoring

[Daniel Ari Friedman, PhD](https://danielarifriedman.com/) is available for AI Research Consulting and Tutoring related to this skill.

## Related Skills

See [BIBLIOGRAPHY.md](../../pages/BIBLIOGRAPHY.md) for the complete publication catalog and related papers.