Author

C. A. Halsch

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Ecology· 5

Signature Assays, Organisms & Methods

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Research Focus:ecology & biodiversity· 4 Approach:experimental assay· 2 Approach:statistical model· 2 Organism:Drosophila· 1 Organism:non-human primate· 1

Frequent Co-Authors

M. L. Forister· 4 shared A. M. Shapiro· 3 shared A. Code· 2 shared D. P. Waetjen· 2 shared J. A. Fordyce· 2 shared J. H. Thorne· 2 shared S. M. Hoyle· 2 shared C. C. Nice· 1 shared

Activity by Year

2019-2022 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 25 mutual co-author links

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4 shared papersEcology

M. L. Forister

Mutual co-authors in cluster

Author profile →

5 papers

Recent·Most cited

Assessing risk for butterflies in the context of climate change, demographic uncertainty, and heterogenous data sources

M. L. Forister, E. M. Grames, C. A. Halsch, K. J. Burls, C. F. Carroll, K. L. Bell, J. P. Jahner, T. Bradford, J. Zhang, Q. Cong, N. V. Grishin, J. Glassberg, A. M. Shapiro, T. V. Riecke

The paper assesses butterfly species risk in western US states using heterogeneous data, finding high risk in certain families and highlighting species with broad ranges needing conservation attention.

bioRxiv · May 22, 2022 · PreprintEcology

Milkweed plants bought at nurseries may expose monarch caterpillars to harmful pesticide residues

C. A. Halsch, S. M. Hoyle, A. Code, J. A. Fordyce, M. L. Forister

This study screens milkweed plants bought at US nurseries for pesticide residues, finding 61 pesticides in 235 samples, with 38% at harmful concentrations for monarch caterpillars.

bioRxiv · Mar 30, 2022Ecology

Pesticide contamination of milkweeds across the agricultural, urban, and open spaces of low elevation Northern California

C. A. Halsch, A. Code, S. M. Hoyle, J. Fordyce, N. Baert, M. L. Forister

This study finds widespread pesticide contamination in milkweed plants across different land use types in California, with many pesticides detected at concentrations potentially harmful to monarch butterflies.

bioRxiv · Mar 9, 2020Ecology

Insects and recent climate change

C. A. Halsch, A. M. Shapiro, J. A. Fordyce, C. C. Nice, J. H. Thorne, D. P. Waetjen, M. L. Forister

This paper examines how insects are responding to recent climate change and highlights the potential severity of its impacts compared to land use changes, using butterflies in Northern California as a case study.

bioRxiv · Mar 9, 2020Ecology

A winner in the Anthropocene: changing host plant distribution explains geographic range expansion in the gulf fritillary butterfly

C. A. Halsch, A. M. Shapiro, J. H. Thorne, D. P. Waetjen, M. Forister

This study investigates the range expansion of the gulf fritillary butterfly by analyzing how host plant distribution and climate factors influence its geographic spread.

bioRxiv · Aug 31, 2019Ecology