Early Thanksgiving Counts Show a Critically Low Monarch Population in California
Published on November 29, 2018
The California overwintering population has been reduced to less than 0.5% of its historical size, and has declined by 86% compared to 2017. While western monarchs are facing unprecedented challenges right now, there is still hope that we can recover the population if we work quickly, strategically, and together.
Western Monarch Numbers Expected to Be Low this Year
Published on November 15, 2018
You may be asking “What can I do to help the monarch?” Besides protecting habitat, avoiding pesticide use, and planting gardens, another way is to contribute monarch and milkweed data to Xerces-led citizen science efforts—namely, the Western Monarch Thanksgiving Count and the Western Monarch Milkweed Mapper.
My First Hybrid: Limenitis archippus archippus × Limenitis arthemis astyanax
Published on October 25, 2018
Recently, photographer Bryan E. Reynolds encountered a rare hybrid of two of his favorite butterfly species—a well-deserved sighting for a passionate lepidopterist!
Keeping the Lights Burning: The Status of Fireflies in the United States and Canada
Published on October 1, 2018
If there is one thing we have discovered during our assessment effort, it is that there is still much to be learned about the world of fireflies. Xerces will continue to seek a better understanding of these enchanting animals and how best to protect them. May their lights shine on for their sakes, and for ours.
Keep Monarchs Wild!
Published on September 11, 2018
Instead of rearing—which is risky and unproven in helping monarchs—we should focus on more effective ways to conserve these glorious wild animals. Our tactics should address the reasons the species is in trouble to begin with. We can do this through taking action to protect natural habitat; to plant native milkweed and flowers; avoid pesticides; support wildlife-friendly, local, and organic agriculture; contribute to research efforts via citizen science; and organize ourselves to push for policy changes.
Surprising Results from a Survey of Bumble Bee Watch Users!
Published on May 23, 2018
This past February, Bumble Bee Watch (BBW) users were invited to take a survey run by York University researchers to learn more about participant demographics, motives, and confidence with bumble bee identification. Three hundred forty-two people from across Canada and the United States responded to the survey, representing members of various ages, locations, and years Read more …
Wildlife Preservation Canada Continues Training “Bumble Bee Watchers”
Published on January 19, 2018
There are 40 different species of native bumble bee in Canada, and evidence suggests that up to a third of them are currently in decline. One of the most extreme examples of decline is the rusty-patched bumble bee (Bombus affinis). Formerly among the most common species across its range, it is now officially listed as Read more …
Citizen Science Data Gives Proof of Need for Regulating Commercial Bumble Bees, Used in Expert Testimony
Published on October 4, 2017
While the honey bee is the most common managed crop pollinator, the common Eastern bumble bee (Bombus impatiens) is also managed and used for crop pollination. Bumble bees are the bees responsible for virtually all of our hot house tomatoes, and many other greenhouse crops like sweet peppers. Companies rear bumble bees in captivity and Read more …
Observations by Citizen Scientists Expand Known Range of the Two-Spotted Bumble Bee
How can researchers be in more than one place at a time? By mobilizing a network of volunteers with cameras! One of the powerful aspects of Bumble Bee Watch, a citizen science project that allows contributors to record bumble bee observations, is that participants submit records of bumble bees from across North America including in Read more …
Calling all western monarch and milkweed observers!
Published on October 3, 2017
Fall is here, which means the days are getting shorter, the nights are getting cooler, and monarchs from across the country are moving from summer breeding grounds back to their overwintering sites in California and Mexico. If you live in the West and have photos of monarchs and milkweed, we encourage you to post your Read more …
Hawk Watch Counters Contribute Another Season of Dragonfly Observations
Published on August 31, 2017
This article originally appeared in the newsletter of the Hawk Watch Association of North America and has been edited from its original format. Hawk Watch observers who gather every year to document the annual journey of hundreds of thousands of hawks, eagles, and vultures southward to overwintering grounds, are ideally placed to note the migration Read more …
Help Researchers Track Milkweeds and Monarchs across the West
Published on February 16, 2017
Monarch researchers are trying to understand why monarch overwintering populations are declining in the West, and we need your help! Overwintering monarch populations have declined by 74% in coastal California and more than 80% in central Mexico since monitoring began about 20 years ago. Researchers in the eastern U.S. have identified loss of milkweed (the Read more …
The Western Monarch Thanksgiving Count at 20: A record volunteer effort, but disappointing butterfly numbers
Published on February 7, 2017
In the fall of 1997, a small group of dedicated monarch scientists and volunteers set out to count how many monarch butterflies were overwintering in California, an essential step in understanding and conserving this remarkable insect and its migration. Twenty years later, the Western Monarch Thanksgiving Count (WMTC) is established as one of the longest Read more …
Western Monarch Conservation: A 40 Year History
Published on February 5, 2017
It was in 1976, at the World Congress of Entomology, held in Washington. D.C., when the North American migratory monarchs were named the number one priority in world butterfly conservation. The Mexican overwintering grounds had just been located the year before, one of the greatest natural history developments of the twentieth century, and a whole Read more …
Citizen science is a wonderful thing
Published on April 21, 2016
There is much yet to be learned about insects and other invertebrates but simply not enough people observing their behavior and documenting their existence to be able to fill in the blanks of our knowledge. After all, there are tens of thousands of species to be found in each region of North America. By drawing Read more …
ID Dragonflies and Locate Hotspots: Introducing the New Dragonfly ID App!
Published on October 3, 2015
Calling all nature enthusiasts! Do you have a smartphone and want to use it to explore, identify, and marvel at the diversity of dragonfly and damselfly fauna in your backyard, local wetland, or favorite trout stream? Well, now you can! We are pleased to introduce Dragonfly ID, a first-of-its-kind app brought to you by the Read more …
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