Sierra Nevada forests provide critical habitat for wildlife and associated biotic communities. Climate change impacts combined with a century of fire suppression are leading to disturbances (fire, drought, pest) that can have differential impacts on forested ecosystems based on their species composition and structure (i.e., their habitat type).  Examining the extent to which the biotic communities within these habitat types are distinct aids in understanding patterns and drivers of community formation, and how they might be sensitive to changes into the future. We developed functional metrics based of trophic interactions (i.e., food webs) to quantify the complexity of biotic communities, and quantify the degree to which habitat types within the Lake Tahoe basin (e.g., Jeffrey pine forest) are distinct in their composition, structure, and function. Results showed habitat types had similar and variable patterns in metrics describing structure and function, indicating that future changes may have variable impacts on habitat types, while the composition of biotic communities was driven by life zone. This highlights the importance of abiotic factors for structuring communities, and potential impacts associated with changing climate, while providing a more comprehensive view of biotic communities, which can help managers steward healthy and resilient habitats.