13 Agencies Unite on Roadmap to Pull Western Monarch Back from the Brink

Press release from CDFW: 

monarch butterflies hanging on branches of treeThe California Multi-Agency Monarch and Pollinator Collaborative has published a report on the results of a years-long process to identify priority conservation actions and research needs for the western monarch butterfly. The “Conservation Priorities for the Western Monarch Butterfly in California” report, involving members of 13 state and federal agencies, marks a significant effort to address threats to the western monarch butterfly, whose population has declined catastrophically in recent years.

“Monarch recovery starts with restoring habitat, expanding native plants and aligning science with on-the-ground action across agencies and partners. This roadmap gives 13 state and federal entities — and the public — a shared path forward to help these iconic pollinators rebound,” said Meghan Hertel, Director of the California Department of Fish and Wildlife.

“The western monarch’s journey is a testament of their endurance. Their survival — as well as other pollinators — requires a collective, persistent effort to turn our landscapes into welcoming habitats,” said California State Parks Director Armando Quintero. “By leveraging shared resources and expertise, we can enhance monarch and pollinator conservation throughout the West Coast.”

The report identifies five top-priority actions for the next three years:

  1. Develop common monarch habitat definitions for the west
  2. Track implementation and success of habitat projects
  3. Centralize existing pollinator resources
  4. Improve the availability of native plant materials
  5. Develop a demographic model to help identify key vulnerabilities in the western monarch life cycle

Knowledge gaps recognized in the report include effects of pesticides on monarchs, conservation strategies on rangelands and the impacts of wildfire on monarch habitat. The Collaborative also identified the need to improve coordination with California Native American tribes for pollinator conservation efforts across the state.

“This report lays out a roadmap for addressing some of the key challenges for monarchs and other pollinators that we depend on to support our ecosystems and food supply. It is important to see how agriculture can be part of the solution,” said California Department of Food and Agriculture Secretary Karen Ross.

“Pollinators are essential to California grown foods like strawberries, grapes and almonds and agricultural production across the country,” said Paul Souza, Director of the U.S. Fish and Wildlife Service’s Pacific Southwest Region. “This report supports voluntary, science-based conservation across the landscape with a variety of partners — from national wildlife refuges and state parks to highways, farms and ranches. We are committed to working with the State of California and local communities to identify innovative opportunities that advance pollinator conservation, including for the iconic monarch butterfly.”

“Caltrans’ engagement in the Collaborative and enrollment in the Monarch Candidate Conservation Agreement demonstrates our ongoing commitment to the conservation of monarch butterflies. Caltrans is actively implementing conservation actions that positively impact monarchs and their habitats, ensuring that our efforts contribute to the long-term survival of pollinator species,” said Dina El-Tawansy, Director of the California Department of Transportation.

To read the full report and learn more about the California Multi-Agency Monarch and Pollinator Collaborative, visit the Collaborative’s web page.

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16 Please improve the conversation by disagreeing thoughtfully and backing your claims with facts
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Kris
Guest
Kris
1 month ago

Been awhile since I have seen one here locally. About all I ever see are cabbage moths

D'Tucker Jebs
Member
1 month ago
Reply to  Kris
Last edited 1 month ago
Mr. Clark
Member
1 month ago
Reply to  D'Tucker Jebs

You put up these sites that overstate the real numbers. To make it look critical, and gain more donation$. Even google says different.
.
The Western Monarch population remains at a critically low level, with the Xerces Society’s 2025–2026 winter count reporting just 12,260 butterflies across 249 sites. This marks the third-lowest total since tracking began in 1997 and signals a continued, concerning trend of low numbers rather than a recovery.
Key 2026 Survey Findings

  • Total Count: 12,260 butterflies were recorded during the mid-season count (Nov-Dec 2025), which was slightly up from the 9,119 reported in 2024–2025 but still within the lowest 3 years on record.
  • Seasonal Decline: Final counts in early January 2026 showed 6,464 butterflies, a 47% drop from the mid-season, illustrating high mid-winter mortality.
  • Key Sites: Major overwintering sites included (1,540), a private site in Big Sur (1,140), and Lighthouse Field State Beach (804).
  • Context: The population has dropped over 95% from the millions present in the 1980s, putting the western migration at risk of collapse.

Causes for Decline

  • Habitat Loss & Climate Change: Continued loss of nectar-rich native flowers and overwintering habitats in California.
  • Weather Extremes: Unusually hot late-summer temperatures and drought in the West have affected breeding generations.
  • Pesticides: Continued impacts from the widespread use of pesticides across the western region.
Thatguyinarcata
Guest
Thatguyinarcata
1 month ago
Reply to  Mr. Clark

You claim that those sites numbers are dramatized for effect and then post an ai summary that has the same conclusion (99% vs “over 95%”).

What on earth are you trying to communicate, let alone accomplish?

Bozo
Guest
Bozo
1 month ago

Don’t think I’ve ever seen a Monarch up in Humboldt County… (maybe as a kid).
Most people mistake Viceroy Butterflies for Monarchs.

Now the Viceroys are becoming uncommon.
Replaced by Swallowtails over the past decade… that are now becoming uncommon.

Cabbage Butterfly (invasive species spread to North America in 1860) are doing fine.

Good site for California butterflies.
https://www.inaturalist.org/check_lists/10675-Butterflies-of-California

Capturekli22
melanopsin
Member
1 month ago
Reply to  Bozo

Thanks!

Viceroy Butterfly vs Monarch: How to Tell the Difference

https://www.birdsandblooms.com/gardening/attracting-butterflies/viceroy-butterfly-a-monarch-mimic/

Viceroy Characteristics

Wing pattern: Black line across lower wings

Wingspan: 2 ½ to 3 ½ inches

Host plant: Willow, poplar, cottonwood

Monarch Characteristics

Wing pattern: No black line on either wing on both sides side of lower wing

Wingspan: 3 ½ to 5 inches

Host plant: Milkweed

Swallowtail butterfly
comment image
Cabbage moth
comment image
picture taken by Olaf Leillinger

Last edited 1 month ago
Bozo
Guest
Bozo
1 month ago
Reply to  melanopsin

Well, here’s our main cabbage/broccoli culprit.
Spray of dilute ‘dish soap’ nails the worms.

‘For best results, use 1 tablespoon of mild, biodegradable dish soap or castile soap mixed into 1 gallon of water. It works best when applied directly to the worms and under leaves, especially after heavy rain.’

Then of course, we also have the ‘root maggots’.
A round paper cut out of a shopping bag placed around the stem can stop them…
or put diatomaceous earth around the stem… or just ‘tent’ the plants.

Nasty. Plants doing well… come out next day… they are wilted on the ground.
Roots eaten away.

Captures12a
Bozo
Guest
Bozo
1 month ago
Reply to  Bozo

Here’s a photo of a Root Maggot infestation… fly and the ‘maggots’.

Capturerootmaggots
melanopsin
Member
1 month ago
Reply to  Bozo

Have the dark paisley cabbage moths here. I can’t recall for certain if the white moths are here. No root maggots, but termites here will eat around root stalks — beautiful lush one day, look water starved the next, then fall over…that’ll teach me to try to garden next to old fallen fir…

Apopa
Guest
Apopa
1 month ago

No mention what Mexico is doing about the issue where these butterflies originate from.

Kris
Guest
Kris
1 month ago
Reply to  Apopa

Your thinking of the Eastern Monarch.

Friday
Member
1 month ago

I retired from Caltrans ten years ago.
About 30 years ago, I tried to persuade upper management to plant milkweed along the shoulders and median strips of our highway system. I thought it would be great to create a statewide network of food & habitat for the Monarchs.
They told me to withdraw my idea, and not mention it again, because it would mean they couldn’t spray and mow all those areas, which would become more difficult to maintain.
They were “right”, of course, but it’s just an example of how our modern lives prevent us from being good neighbors with … well, our neighbors.

Bozo
Guest
Bozo
1 month ago
Reply to  Friday

It might have have been… a disaster.
Was driving Hwy 99 from Oroville to Red Bluff… (many years ago).

Bee hives were in one field on the right of the highway.
Bees wanted pollen in the next field… yup across the highway.

Turned into a BEE SLAUGHTER.
Couldn’t keep the wipers going fast enough to get the dead bees off the windshield.
Every car and truck was the same. Dead bees lined the road.

Any rate… I envision that if they plant Milkweed along the highways.
It would be MONARCH SLAUGHTER.

Have to build multiple $120 Million Monarch Overpasses.

Go figure.

D'Tucker Jebs
Member
1 month ago
Reply to  Friday

I like the idea of requiring hedgerows between farm fields.
Of course, if the farms don’t transition away from such heave pesticide use,
that will end up being a disaster too.

melanopsin
Member
1 month ago

https://www.spaceweather.com/archive.php?view=1&day=06&month=05&year=2026

SAVE THE FIREFLIES: This week, R.T. Smith of Stonville, North Carolina, saw a bright train of luminous streaks moving across the night sky. For a change, it wasn’t SpaceX. It was Lampyridae:

comment image

Also known as “fireflies,” these winged beetles appear in early summer, making their own light from a chemical reaction involving oxygen and the molecule luciferin. The bioluminescent display is a mating ritual conducted by males. If a female recognizes her specie’s pattern from a male, she will light up her own lantern and beckon him over.

Readers of a certain age may remember swarms of fireflies criss-crossing the stars on long-ago summer evenings–but fewer now. While satellite megaconstellations are multiplying, the family Lampyridae is in sharp decline. Pesticides and light pollution (which interferes with reproductive signalling) are key threats.

The US Fish and Wildlife Service is calling upon us to save the fireflies. They are the good streaks, after all.

farfromputin
Member
1 month ago

CDFW folks are data driven and not BS driven.