Xerces Society


The Xerces Society for Invertebrate Conservation is a non-profit environmental organization that focuses on the conservation of invertebrates considered to be essential to biological diversity and ecosystem health. It is named in honor of an extinct California butterfly, the Xerces blue.
The Society collaborates with federal and state agencies including the US Department of Agriculture, as well as scientists, land managers, educators, and citizens to promote invertebrate conservation, applied research, advocacy, public outreach and education. Examples of Xerces Society activities include advocating for invertebrates and their habitats, petitioning for the designation of endangered status for applicable species such as the monarch butterfly,
and public education projects. Ongoing projects include the rehabilitation of habitat for endangered species, public education about the importance of native pollinators, and the restoration and protection of watersheds.
The organization was founded by butterfly scientist Robert Michael Pyle from Yale School of Forestry & Environmental Studies and was reincorporated with the Oregon Secretary of State on April 14, 1988.

Initiatives

Bee City USA

The Xerces Society initiated its Bee City USA program in 2018 to encourage cities to encourage native pollinators by planting more native plants, providing more pollinator habitats, and limiting unnecessary pesticide spraying.
These measures benefit pollinating species such as native bees, moths, beetles, flies, and butterflies.

Bee Campus USA

The Xerces Society started the Bee Campus USA program to include pollinator gardens in communities and campuses to provide habitats for local pollinators.
The following colleges and universities participate in the Bee Campus USA program.

Litigation

In August 2024, the Xerces Society and Center for Biological Diversity won a lawsuit against the USDA's Animal and Plant Health Inspection Service over its widespread use of pesticides to address grasshopper and cricket infestations over millions of acres across 17 western states.

Publications

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