PIPages
Labs

Cesar Uribe

Rice University, TX·Ecology & Evolution

Food webs, the networks of who eats whom, help hold ecosystems together. Most have been studied in single places, which makes it hard to predict how climate change and land use will reshape them across whole regions.

Fields

Ecology & Evolution

Engineering

Computer Science

Topics

food webs

ecological networks

predator-prey interactions

Grants
1 known grant, last ended Sep 2026

What they work on

  1. Determine how climate and habitat fragmentation influence vegetation productivity, the rate plants convert sunlight into plant material, across sub-Saharan African mammal habitats.
  2. Track how local mammal food webs in five African protected areas respond to changes in productivity and fragmentation over time, using standardized yearly camera-trap data.
  3. Measure how food web structure varies with productivity and fragmentation across 170 mammal communities, using topological data analysis, a mathematical method for comparing network shapes.
  4. Develop fast, open-source algorithms with tutorials for measuring differences between food webs across space and time.

More about the research

In sub-Saharan Africa, plant productivity strongly predicts mammal diversity, and the human population is projected to grow fast. This project asks what drives the structure of African mammal food webs over space and time.

Why it matters

Africa's mammal communities face fast changes in climate and land use. Knowing how productivity and habitat fragmentation reshape predator-prey networks could help conservation planners anticipate which communities are most at risk. Open-source tools for comparing food webs could also help ecologists elsewhere study networks more rigorously.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

MSA: Quantifying the drivers of mammal food web networks over space and time in Sub-Saharan Africa

NSF · Oct 2022 – Sep 2026

Closest labs

Chris Funk

Colorado State University-Fort Collins, CO·Ecology & Evolution

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Pete Guiden

Hamilton College, NY·Ecology & Evolution

Test whether overabundant white-tailed deer indirectly simplify rodent communities, narrow rodent diets and raise Lyme disease prevalence in northeastern US forests, using deer exclosure fences and unfenced controls.

Justin Pomeranz

Colorado Mesa University, CO·Ecology & Evolution

Describe how body-size distributions, measured by the power-law exponent λ, vary across U.S. streams and rivers sampled by the National Ecological Observatory Network (NEON).

The school

Rice University: 24 labs on PI Pages, $278M a year on research, 267 research doctorates a year.

More about Rice University

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