Some more about the importance of bees,,,, as pollinators, rusty patched bumble bees contribute to our food security and the healthy functioning of our ecosystems. Bumble bees are keystone species in most ecosystems, necessary not only for native wildflower reproduction, but also for creating seeds and fruits that feed wildlife as diverse as songbirds and grizzly bears.
Bumble bees are among the most important pollinators of
crops such as blueberries, cranberries, and clover and almost the only insect
pollinators of tomatoes. Bumble bees are more effective pollinators than honey
bees for some crops because of their ability to “buzz pollinate.” a pollination technique where it grabs onto a plant and then
vibrates its body at a high frequency to shake loose tightly packed pollen that
might otherwise be difficult to access. Not all bees buzz pollinate —
honeybees, for example, don’t. But buzz pollination is essential for the
reproduction of a range of plants, including crops like blueberries, apples and
tomatoes.
But some 25 years ago, the rusty patched bumble bee began to disappear. Eventually the U.S. Fish and Wildlife Service found that the species was “so imperiled that every remaining population is important for its continued existence.” It became the first bee to be included on the agency’s endangered species list in 2017.
In Virginia, where the species once ranged widely, the bee
in recent years has only been observed in four counties: Bath, Highland,
Augusta and Rockingham, with the most sightings in the former two
locations.
There is little consensus among scientists about what’s
causing the rusty patched bumble bee’s disappearance, but much is being done to
conserve them.
Several U.S. Fish and Wildlife Service programs work to
assess, protect, and restore pollinators and their habitats. Also, the Service
works with partners to recover endangered and threatened pollinators and
pollinator-dependent plants. Concern about pollinator declines prompted
formation of the North American Pollinator Protection Campaign, a collaboration
of people dedicated to pollinator conservation and education.
Trusts, conservancies, restoration groups and partnerships
are supporting pollinator initiatives and incorporating native plants that
support bees and other pollinators into their current activities.
Researchers are studying and monitoring the impacts of GMO
crops and certain pesticides on pollinators. Efforts by citizen scientists and
researchers to determine the status of declining bee species are underway
throughout the U.S.
