I am a PhD candidate in marine ecology and biogeography, studying with Dr. Giulio De Leo at the Hopkins Marine Station. My research employs a variety of statistical and computational tools to examine the effects of climate change on predator-prey interactions in coastal marine ecosystems. By characterizing changes that have already occurred, and building projections under various climate scenarios, my work is aimed at adapting fisheries and marine resource management to a warming world. Before coming to Stanford, I worked alongside Drs. Benjamin Ruttenberg and Jennifer O'Leary, studying the responses of marine communities to disturbance, the population dynamics of marine invertebrates, and the large-scale processes structuring the biogeographic ranges of temperate fishes.
Honors & Awards
Data Science Scholar, Stanford (2022-present)
Research Grant, Myers Oceanographic & Marine Biology Trust (2022)
Research Grant, Friends of Hopkins Marine Station (2022)
Centennial Teaching Award, Stanford School of Humanities and Sciences (2021)
Excellence in Teaching Award, Stanford Biology (2019, 2021)
Graduate Research Fellowship, NSF (2019-present)
Temperature affects predation of schistosome-competent snails by a novel invader, the marbled crayfish Procambarus virginalis.
2023; 18 (9): e0290615
The human burden of environmentally transmitted infectious diseases can depend strongly on ecological factors, including the presence or absence of natural enemies. The marbled crayfish (Procambarus virginalis) is a novel invasive species that can tolerate a wide range of ecological conditions and colonize diverse habitats. Marbled crayfish first appeared in Madagascar in 2005 and quickly spread across the country, overlapping with the distribution of freshwater snails that serve as the intermediate host of schistosomiasis-a parasitic disease of poverty with human prevalence ranging up to 94% in Madagascar. It has been hypothesized that the marbled crayfish may serve as a predator of schistosome-competent snails in areas where native predators cannot and yet no systematic study to date has been conducted to estimate its predation rate on snails. Here, we experimentally assessed marbled crayfish consumption of uninfected and infected schistosome-competent snails (Biomphalaria glabrata and Bulinus truncatus) across a range of temperatures, reflective of the habitat range of the marbled crayfish in Madagascar. We found that the relationship between crayfish consumption and temperature is unimodal with a peak at ~27.5°C. Per-capita consumption increased with body size and was not affected either by snail species or their infectious status. We detected a possible satiation effect, i.e., a small but significant reduction in per-capita consumption rate over the 72-hour duration of the predation experiment. Our results suggest that ecological parameters, such as temperature and crayfish weight, influence rates of consumption and, in turn, the potential impact of the marbled crayfish invasion on snail host populations.
View details for DOI 10.1371/journal.pone.0290615
View details for PubMedID 37703262
Diving into the vertical dimension of elasmobranch movement ecology.
2022; 8 (33): eabo1754
Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses the knowledge gap of vertical movements by compiling the first global synthesis of vertical habitat use by elasmobranchs from data obtained by deployment of 989 biotelemetry tags on 38 elasmobranch species. Elasmobranchs displayed high intra- and interspecific variability in vertical movement patterns. Substantial vertical overlap was observed for many epipelagic elasmobranchs, indicating an increased likelihood to display spatial overlap, biologically interact, and share similar risk to anthropogenic threats that vary on a vertical gradient. We highlight the critical next steps toward incorporating vertical movement into global management and monitoring strategies for elasmobranchs, emphasizing the need to address geographic and taxonomic biases in deployments and to concurrently consider both horizontal and vertical movements.
View details for DOI 10.1126/sciadv.abo1754
View details for PubMedID 35984887
- Shifting fish distributions impact predation intensity in a sub-Arctic ecosystem ECOGRAPHY 2022
Effectiveness of a Constructed Wetland with Carbon Filtration in Reducing Pesticides Associated with Agricultural Runoff.
Archives of environmental contamination and toxicology
The Salinas Valley in Monterey County, California, USA, is a highly productive agricultural region. Irrigation runoff containing pesticides at concentrations toxic to aquatic organisms poses a threat to aquatic ecosystems within local watersheds. This study monitored the effectiveness of a constructed wetland treatment system with a granulated activated carbon (GAC) filter installation at reducing pesticide concentrations and associated toxicity to Ceriodaphnia dubia, Hyalella azteca, and Chironomus dilutus. The wetland was supplied with water pumped from an impaired agricultural and urban drainage. Across five monitoring trials, the integrated system's average pesticide concentration reduction was 52%. The wetland channel and GAC filtration components individually provided significant treatment, and within each, pesticide solubility had a significant effect on changes in pesticide concentrations. The integrated treatment system also reduced nitrate by 61%, phosphate by 73%, and turbidity by 90%. Input water was significantly toxic to C. dubia and H. azteca in the first trial. Toxicity to C. dubia persisted throughout the system, whereas toxicity to H. azteca was removed by the channel, but there was residual toxicity post-GAC. The final trial had significant input toxicity to H. azteca and C. dilutus. The channel reduced toxicity to H. azteca and removed toxicity to C. dilutus. GAC filtration reduced H. azteca toxicity to an insignificant level. There was no input toxicity in the other three trials. The results demonstrate that a wetland treatment system coupled with GAC filtration can reduce pesticide concentrations, nutrients, suspended particles, and aquatic toxicity associated with agricultural runoff.
View details for DOI 10.1007/s00244-021-00909-0
View details for PubMedID 34985546
- Effects of Estuary-Wide Seagrass Loss on Fish Populations ESTUARIES AND COASTS 2021
- ABALONE RECRUITMENT IN LOW-DENSITY AND AGGREGATED POPULATIONS FACING CLIMATIC STRESS JOURNAL OF SHELLFISH RESEARCH 2020; 39 (2): 359–73
Opportunities and challenges in achieving co-management in marine protected areas in East Africa: a comparative case study
Journal of the Indian Ocean Region
View details for DOI 10.1080/19480881.2020.1825201
- The relationship between geographic range extent, sea surface temperature and adult traits in coastal temperate fishes JOURNAL OF BIOGEOGRAPHY 2019; 46 (7): 1438–50