California
Tiny tracker following monarch butterflies during California migration
SAN FRANCISCO (KGO) — When this monarch butterfly hits the sky it won’t be traveling alone. In fact, an energetic team of researchers will be following along with a revolutionary technology that’s already unlocking secrets that could help the entire species survive.
“I’ve described this technology as a spaceship compared to the wheel, like using a using a spaceship compared to the invention of the wheel. It’s teaching us so, so much more,” says Ray Moranz, Ph.D., a pollinator conservation specialist with the Xerces Society.
Moranz is part of a team that’s been placing tiny tracking devices on migrating monarchs. The collaboration is known as Project Monarch Science. It leverages solar powered radio tags that are so light they don’t affect the butterfly’s ability to fly. And they’re allowing researchers to track the Monarch’s movements in precise detail. With some 400 tags in place, the group already been able to get a nearly real time picture of monarch migrations east of the Rockies, with some populations experiencing dramatic twists and turns before making to wintering grounds in Mexico.
“They’re trying to go southward to Mexico. They can’t fight the winds. Instead, some of them were letting themselves be carried 50 miles north, 100 miles north, 200 miles the wrong way, which we are all extremely alarmed by and for good reason. Some of these monarchs, their migration was delayed by two or three weeks.
According to estimates, migrating monarch populations have dropped by roughly 80% or more across the country. And the situation with coastal species here in California is especially dire. Blake Barbaree is a senior scientist with Point Blue Conservation Science. He and his colleagues are tracking Northern California populations now clustered around Santa Cruz.
MORE: Monarch butterflies to be listed as a threatened species in US
“This year, there’s it’s one of the lowest, populations recorded in the winter. And the core zones have been in Santa Cruz County and up in Marin County. So we’ve undertaken an effort to understand how the monarchs are really using these different groves around Santa Cruz by tagging some in the state parks around town,” Barbaree explains.
He says being able to track individual monarchs could help identify microhabitats in the area that help them survive, ranging from backyard pollinator gardens to protected open space to forest groves.
“So we’re really getting a great insight to how reliant they are on these big trees, but also the surrounding area and people’s even backyards. And then along the way around the coast, how they’re transitioning among some of these groves. And we’re looking for some of the triggers for those movements. Right. Why are they doing this and what’s what’s driving them to do that? So those questions are still a little bit further out as we get to analyze some more some more of the data,” he believes.
And that data is getting even more precise. The tags, developed by Cellular Tracking Technologies, can be monitored from dedicated listening stations. But the company is also able to crowdsource signals detected by cellphone networks on phones with Bluetooth connectivity and location access activated. And they’ve also helped develop an app that allows volunteers, citizen scientists, and the general public to track and report Monarch locations themselves using their smartphones.
CEO Michael Lanzone says the initial response has been overwhelming.
MORE: New butterflies introduced in SF’s Presidio after species went extinct in 1940s
“We were super surprised to see 3,000 people download the monarch app. It’s like, you know, but people really love monarchs. There’s something that people just relate to,” says Lanzone who like many staffers at Cellular Tracking Technologies, has a background in wildlife ecology.
A number of groups are pushing to have the monarchs designated nationally as a threatened species. If that ultimately happens, researchers believe the tracking data could help put better protections in place.
“They’re highly vulnerable to, you know, some of the different things that that that we as humans do around using pesticides and also potentially cutting, you know, cutting down trees for various reasons. Sometimes they’re for safety and sometimes it’s, you know, for development. But so having an understanding of how we can do those things more sensibly and protect the places that they need the most,” says Point Blue’s Barbaree.
And it’s happening with the help of researchers, citizen scientists, and a technology weighing no more than a few grains of rice.
The smartphone app is called Project Monarch Science. You can download it for free and begin tracking.
Copyright © 2025 KGO-TV. All Rights Reserved.
California
Preliminary magnitude 3.3 earthquake strikes near San Ramon, USGS says
SAN RAMON, Calif. (KGO) — An earthquake with a preliminary magnitude of 3.4 struck near San Ramon at 11:21 p.m. Sunday, the U.S. Geological Survey said.
USGS said the tremor was about 8.4 km in depth.
According to the Geological Survey, people typically report feeling earthquakes larger than about magnitude 2.5.
The closer to the surface an earthquake occurs, the more ground shaking and potential damage it will cause.
No injuries have been reported.
This is the latest quake in San Ramon, which has seen multiple strings of tremors in the past several months.
Bay City News contributed to this report.
MAP: Significant San Francisco Bay Area fault lines and strong earthquakes
Zoom in on the map below and compare where you live to the significant faults and where strong earthquakes have struck in the Bay Area.
Stay with ABC7 News for the latest details on this developing story.
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Copyright © 2026 KGO-TV. All Rights Reserved.
California
More SoCal rallies for and against military action in Iran expected on Sunday and Monday
LOS ANGELES (KABC) — Worshippers across Los Angeles were met with an increased law enforcement presence on Sunday as police and sheriff’s deputies stepped up patrols outside mosques, synagogues and cultural landmarks following the strikes on Iran.
Local officials said there are no credible threats to Southern California, but the Los Angeles Police Department and the Los Angeles County Sheriff’s Department heightened visibility as a precaution to ensure communities stay safe.
More demonstrations tied to the attack on Iran are expected Sunday and Monday. Several protests were held across Southern California on Saturday.
READ MORE | Rallies for and against military action in Iran draw demonstrators across Southern California
While Iranian-Americans celebrated in Westwood, protesters gathered in downtown Los Angeles to oppose the Trump administration’s attacks against Iran.
While some groups gathered in downtown Los Angeles to protest the strikes, others assembled in Westwood to celebrate “the fall of the Ayotollah,” according to organizers.
Authorities said they will continue monitoring events as the region prepares for additional gatherings in the days ahead.
This is a developing story. This article will continue to be updated as more information becomes available.
Copyright © 2026 KABC Television, LLC. All rights reserved.
California
San Jose Mayor Matt Mahan officially announce run for California governor
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