Abstract
High-severity wildfires create heterogeneous patterns of vegetation across burned landscapes. While these spatial patterns are well-documented, less is known about the short- and long-term effects of large-scale high-severity wildfires on insect community assemblages and dynamics. Ants are bottom-up indicators of ecosystem health and function that are sensitive to disturbance and fill a variety of roles in their ecosystems, including altering soil chemistry, dispersing seeds, and serving as a key food resource for many species, including the federally endangered Jemez Mountain salamander (Plethodon neomexicanus). We examined the post-fire effects of the 2011 Las Conchas Wildfire on ant communities in the Valles Caldera National Preserve (Sandoval County, New Mexico, USA). We collected ants via pitfall traps in replicated burned and unburned sites across three habitats: ponderosa pine forests, mixed-conifer forests, and montane grassland. We analyzed trends in species richness, abundance, recruitment, loss, turnover, and composition over five sequential years of post-fire succession (2011–2015). Ant foraging assemblage was influenced by burn presence, season of sampling, and macrohabitat. We also found strong seasonal trends and decreases over time since fire in ant species richness and ant abundance. However, habitat and seasonal effects may be a stronger predictor of ant species richness than the presence of fire or post-fire successional patterns.
Recommended Citation
J. Knudsen et al., "High-Severity Wildfires Alter Ant (Hymenoptera: Formicidae) Foraging Assemblage Structure in Montane Coniferous Forests and Grasslands in the Jemez Mountains, New Mexico, Usa," Conservation, vol. 4, no. 4, pp. 830 - 846, MDPI, Dec 2024.
The definitive version is available at https://doi.org/10.3390/conservation4040049
Department(s)
Biological Sciences
Publication Status
Open Access
Keywords and Phrases
arthropod; burn severity; community; ecology; insect; pitfall trapping; wildland fire
International Standard Serial Number (ISSN)
2673-7159
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2025 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
01 Dec 2024
Comments
Texas Tech University, Grant P15AC01085