Tracking Rangeland Condition and Cattle Foraging Patterns

This growing season, the HERD Lab has been tracking forage biomass and nutritional quality as well as cattle foraging decisions on the Merced Vernal Pools and Grasslands Reserve. Every other week, we are collecting total biomass, species-specific samples for forage quality analysis, and cattle fecal samples for diet analysis. Most of the HERD are contributing to the project, which started as Dolores’ UC Natural Reserve System Swarth-Fogel Fellowship project.

Workshop on DNA Metabarcoding at the Universidade de São Paulo

Over Spring Break, Matt led a workshop on DNA metabarcoding, as a tool for diet and community analysis, for graduate students, postdocs, and faculty. The workshop was hosted by the Genetics Department at the Universidade de São Paulo and participants were from several Brazilian universities. 

HERD Lab-ers Become Botanists

In preparation for the first round of fieldwork for Alejandro’s thesis chapter assessing how flooding and cattle grazing influence habitat quality for Central Valley deer, we spent two days in February working with  Emily Allen  on our botany skills, focusing specifically on grasses in the Los Banos Wildlife Area. A big success was building familiarity with grass parts, navigating dichotomous keys, and identifying specimens in the field. Thanks, Emily!

Cyclone Idai Nature  Article Covered by Nautilus Magazine

Nautilus magazine reported on our recent article, published in Nature , on the ecological impact of Cyclone Idai on the Gorongosa ecosystem. That paper found that smaller, floodplain-associated species were most vulnerable to cyclone-induced flooding. 

Nautilus article ; Nature article ; Nature Research Briefing

Nature’s Fear Factor (PBS)

In 2019, HHMI and PBS filmed a PBS NOVA documentary in Gorongosa National Park that charted the reintroduction of African wild dogs to Gorongosa and their impact on the ecosystem. Our work on the reassembly of herbivore communities was central theme in the story. We were thrilled to hear the documentary was nominated for an Emmy award in 2021; congratulations to all!

Sean’s MSc Research Featuring in the L.A. Times!

As part of the Los Angeles Landscape History Project, Sean’s master’s work contributed to the first-ever historical recreation of the Los Angeles landscape. Sean used occupancy models to recreate the breeding bird community pre-urbanization and compared this to the observed presence of species in the late 1990s to quantify how a century of urbanization has redistributed biodiversity and disproportionately impacted species associated with lowland grassland and wetland habitat. 

L.A. Times story ; technical report for Haynes Foundation