Science

Adult Red-tailed Hawk
Article
After a 2018 season of smoke and haze, GGRO Director Allen Fish explored impacts of air pollution on birds in his 2019 article for Pacific Raptor 40. As first responders battle wildfires across the state each year, we again wonder what effect these extreme climate phenomenon will have on raptor health and movement.
Uniformed firefighters gesture to each other as a prescribed fire burns on the grassy landscape.
Gateways Article
As autumn nears, park managers are shifting priorities towards wildfire resilience and protecting communities along the wildland-urban interface: the high-risk zone where human development meets flammable vegetation.
Raptor migration trends at the Marin Headlands
Conservation

Timing Profiles by Species

WHEN DO DIFFERENT RAPTORS PASS BY HAWK HILL? These graphs show how often a specific raptor has been sighted on any day of the season (normalized as raptors per hour of effort, or RPH). Historically, the peak of "Peak" is September 24th, with an average RPH of 95. Each species...
A monarch butterfly in nature.
Article
In times of great uncertainty, reconnecting to nature and grounding yourself in the outdoors can be a calming practice. Here are a couple of suggestions on how to get started.
Green sweat bee (Agapostemon texanus) on flower
Article
In an era when insect declines are making international news, One Tam decided data about pollinators could help assess the resilience of Mount Tam’s ecosystems.
Researcher wearing white gloves holds a bat delicately in hands
Park E-Ventures Article
The fungus that causes white-nose syndrome, a plague-like disease decimating species of hibernating bats in North America, has been found in California.
Biologist Sarah Allen records data in a notebook next to rocky California coastline.
Park E-Ventures Article
Go behind the scenes of park science with Dr. Sarah Allen, who's dedicated her career to elevating science and conservation in National Parks. Learn about her journey as a scientist in her own words, from the sparks of her career to adventures researching penguins in Antarctica.
Oak forests on Mount Tamalpais.
Article
How can we brace forest ecosystems against rising temperatures, deadly pathogens, and voracious wildfires? At One Tam’s latest Science Summit, scientists and community members gathered to exchange knowledge and brainstorm solutions.
Alcatraz Historic Gardens
Park E-Ventures Article
We caught up with “Chief Composting Officer” Dick Miner to get the scoop on Alcatraz Historic Gardens’ award-winning compost—and learn some tips for your own.
Golden Gate Bridge and fog
Park E-Ventures Article
August (aka “Fog-ust”) is descending upon us like a slick and clammy shroud. As you huddle together to preserve body heat, amaze your friends with five fun facts about the fog.