How are native bee species in the US doing in light of the major threats they are facing? What more do we need to know to protect them? There are over 3,600 species of native bees in the United States, but we only know the conservation status (i.e., how well they are doing) of about 20% of them. This makes it difficult to make decisions about how to prioritize bee conservation. 

Joining us to discuss this problem is Saff Killingsworth, Xerces Endangered Species Conservation Biologist. Saff coordinates the State of the Bees initiative, working with researchers and land managers to assess the status of wild bees in the western U.S. and address their conservation needs. She also works to advance conservation of butterflies and fireflies in Arizona. 

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Photo: az3/Flickr CC BY-NC-SA 2.0

Thank you for listening! For more information go to xerces.org/bugbanter.

Co-host Matthew Shepherd came from Britain, a country known for its hedgerows. He grew up surrounded by hedges, sometimes many centuries old, crisscrossing the countryside. Early in Matthew's career he helped plant, maintain, and restore miles of hedgerows and got to see up close the wealth of wildlife that live in them. When he moved to America, he was struck by the lack of hedgerows, their place in the landscape frequently filled by barbed wire or other types of fencing. He is very happy to know that this is changing and that there is a movement in this country toward planting hedgerows for their beauty, wildlife value, and economic benefits.

Joining Matthew in this episode is someone who has been at the forefront of this effort for a decade and a half. Jessa Kay Cruz is a Senior Pollinator Conservation Specialist for the Xerces Society in a region covering California and the Intermountain West. Since joining Xerces in 2008, Jessa has worked in agricultural and natural lands to create habitat for pollinators and other beneficial insects, and to promote practices that support them. She provides education and technical support to a range of individuals and agencies, including farmers and ranchers, agricultural professionals, and land managers.

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Cover Photo: Sarah Foltz Jordan/Xerces Society

Thank you for listening! For more information go to xerces.org/bugbanter.

I’m sure it’s not surprising to hear that butterflies are in decline, but the speed at which it is happening may be. Butterflies are being lost at a rate of 1.3% per year, which means more than one-fifth have disappeared over a 20-year period. These are just a couple of the alarming statistics that emerged from the work of the State of the Butterflies in the United States working group. The group was comprised of scientists from universities, agencies, and the Xerces Society. Their findings have been published in academic journals, including Science. Building on this, Xerces has just released State of the Butterflies in the United States, a report authored by members of the working group that presents a picture of the status of butterflies and offers a vision for how we can reverse the declines.

To talk with us about the report and what we need to do are Scott Black and Cheryl Shultz. Scott is the executive director of the Xerces Society. His work has resulted in the protection and restoration of habitat on millions of acres of rangelands, forests, and farmland, as well as protection for many endangered species. Cheryl is a professor at Washington State University Vancouver, where she studies the ecology of at-risk species, particularly butterflies of the PNW prairies. Cheryl also is a long-time scientific advisor to the Xerces Society. 

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Photo credit: Candace Fallon/Xerces Society

Thank you for listening! For more information go to xerces.org/bugbanter.

One of the most effective ways to contribute to pollinator conservation is to provide the essential components of pollinator habitat. To celebrate Pollinator Week, we invited a panel of Xerces experts to help us answer audience questions in this special Bug Banter Live episode. 

Bernardo Niño is a pollinator conservation specialist with Xerces Food Systems and Living Farms Project in California. Steve Armstead is a pollinator conservation and nature-based climate solutions specialist in Colorado. Emily May is the agricultural conservation lead with the Xerces pesticide reduction program. Kevin Burls is an endangered species conservation biologist in the western United States. 

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Cover photo: Emily May

Thank you for listening! For more information go to xerces.org/bugbanter.

In the face of insect decline, it is critical for us to understand pollinator health both in terms of influencing factors and how to monitor those impacts. Today we are specifically focusing on bees.

To talk about some exciting research in this field is Dr. Laura (la-u-ra) Figueroa (fig-eh-row-ah). Laura is an Assistant Professor in the Environmental Conservation Department at the University of Massachusetts Amherst. She was previously a National Science Foundation post-doctoral research fellow, and completed her PhD in entomology at Cornell University. Laura is broadly interested in insect conservation, with a focus on the health of pollinators in changing landscapes and the impacts of climate change. She has worked in temperate regions (primarily the Northeastern US) as well as in the tropics (in Costa Rica and in Colombia), and her active research program seeks to answer pressing questions in the field of pollinator conservation.

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Photo: Sara Morris / CC BY-NC 2.0

Thank you for listening! For more information go to xerces.org/bugbanter.

Creating habitats with native plants is one of the most impactful ways to help invertebrates. One of the programs at Xerces is helping people do just that by providing free Habitat Kits to communities in several regions of the US.

Joining us to discuss our Habitat Kit Program is Giovanni Di Franco, Xerces Endangered Species Conservation Biologist and Pollinator Habitat Specialist. Gio is working to develop the habitat kit program in southern California, especially in the greater Los Angeles area. 

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Photo: Nancy Kirchhoff

Thank you for listening! For more information go to xerces.org/bugbanter.

Prairies are an ecosystem that historically spanned the center of this continent from the Rocky Mountains to east of the Mississippi and from Texas north to Saskatchewan. Although less than 5% of that prairie remains today, it is critical habitat for a number of invertebrates. Prairies are incredibly diverse and hold many exciting stories.

To help us explore prairies and their critters is prairie ecologist Chris Helzer. Chris works for the Nature Conservancy as the Director of Science and Stewardship in Nebraska, where, among other things, he supervises TNC’s work on the Platte River Prairies and the Niobrara Valley Preserve. Chris also works to raise awareness about the value of prairies and prairie conservation through his photography, writing, and presentations. Chris is the author of The Ecology and Management of Prairies in the Central United States and Hidden Prairie: Photographing Life in One Square Meter.

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Photo: Justin Meissen/Flickr-CC

Thank you for listening! For more information go to xerces.org/bugbanter.

Most of the natural world has been altered by humans in some way. Ecosystems that are dominated by humans or man-made structures, such as cities, can still provide meaningful and essential habitat for insects. Today, we are going to discuss research being done in various human-dominated landscapes to answer the question: how do we restore and conserve insects in these ecosystems?

We are joined by Dr. Chelse Prather, Associate Professor and Environmental Biology Coordinator at the University of Dayton. As an ecologist, Chelse has worked with insect communities in forests, grasslands, and urban ecosystems. She has managed a variety of projects from understanding basic insect ecology, like what nutrients limit insect communities, to very applied projects, such as how the installation of solar arrays affects insect communities.

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Photo by Matthew Shepherd

Thank you for listening! For more information go to xerces.org/bugbanter.

Flies are amazing insects that play critical roles in our environment including pollination, waste disposal, pest control, and as a link in the food web. Flies are greatly diverse in colors, shape, size, and where they live. Butterflies and bees probably generate more enthusiasm, but it’s time to change that. 

To talk about flies with us, we are joined by Dr. Erica McAlister, who works at the Natural History Museum in London, where she is the principal curator for Diptera and Siphonaptera, i.e., flies and fleas. Erica takes a particular interest in three groups of flies, fungus gnats, assassin flies, and mosquitoes. The latter means that inevitably she is involved with many projects related to identification of mosquitoes and which ones are associated with spread of malaria and other diseases and viruses, but her experience is much broader, including teaching entomology in Dominica and studying the invertebrates — more specifically, the flies — of that island. Finally, Erica is also the award-winning author of four books, including The Secret Life of Flies and The Inside Out of Flies.

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Cover Photo: Whitney Cranshaw - Bugwood CC - Tachinid fly (Trichopoda pennipes) 

Thank you for listening! For more information go to xerces.org/bugbanter.

Who doesn’t know the high-pitched whine of a nearby mosquito? We know they can be a nuisance, and in many regions, a health risk because of their ability to spread diseases. Some communities do public control campaigns, and increasingly, companies are offering home spraying of yards. But, the insecticides used in these sprays are broadly toxic to insects, and the risk they pose to pollinators isn't fully understood. In the summer of 2023, Xerces did a study looking at how these insecticides spread across the landscape. 

Joining us to talk about the study is Aaron Anderson, who has been a member of Xerces’ pesticide reduction team for a couple of years. Aaron’s work focuses on reducing pesticide use in residential landscapes, including promoting alternative pest-control measures and pollinator-friendly gardening practices. Prior to joining Xerces, he researched pollinator conservation in urban landscapes, restored habitat for several endangered butterfly species, and worked in insect biocontrol. If that wasn’t cool enough, Aaron has been on Bug Banter before, also talking about mosquitoes.

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 Photo: Woodland Mosquito-Katja Schulz-Flickr CC

Thank you for listening! For more information go to xerces.org/bugbanter.