Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

Phenology Talkbacks: A beetle with bugs? How tiny hitchhikers find their food

A group of tiny mites hitches a ride on a tomentose burying beetle's back. The image is taken in close up. The beetle is in a plastic jar. It has a furry thorax, comb-like tips on its antennae, and one wing is sticking out from under the wing covers. The mites are much smaller than the beetle, about the size of the beetle's eye. There are about a dozen mites visible, mostly on the beetle's wing covers.
Contributed
/
iNaturalist user leif_richardson
A group of tiny mites hitches a ride on a tomentose burying beetle's back.

Ol’ Momma Nature threw me for a loop this week when Elisa Rachel posted a video of some tiny, fast-moving insects swarming over a beleaguered beetle’s back.

Plus, we hear about a giddy grouse and fall arriving at Long Lake Conservation Center in this week’s phenology talkbacks!

Please don’t hesitate to reach out with your observations, nature tales and insights! Get in touch with me (smitchell@kaxe.org), John Latimer (jlatimer@kaxe.org), or text "phenology" to 218-326-1234.

Long Lake Conservation Center near Palisade

Long Lake Conservation Center phenology report - Sept. 5, 2023

Staff naturalists Marla, Julia and Katie report from Long Lake Conservation Center:

“This week the first real signs of fall are being noted, including the wild sarsaparilla changing to yellow and red and the first of the tamaracks going gold. The first leaf drop is starting to happen as well with some species of trees.

“Some of us went out last night and observed the Super Blue Moon, an amazing sight through a pair of binoculars.

“About halfway across Long Lake, there is a shallow boggy area where two swans were seen standing on several mornings this week. Groups of turkeys were enjoying the plentiful acorns on the ground, and we saw the season’s first oak galls.

“We saw a tussock moth and the tree frogs and leopard frogs are still everywhere. The cosmos are blooming and some lobster mushrooms were spotted on the trail.

“We also noticed that the wild sarsaparilla is starting to die back for the season. It was a beautiful week in nature, and we want to remind everyone to... unplug, get outside, and LIVE CONNECTED!!”

John is always excited at the prospect of unplugging, getting outside and living connected – it'd be hard to say which of those three activities he values the most. He was happy to hear the naturalists listing so many changes happening in their neck of the woods and will go into more detail on the changes he’s noticing in this week’s phenology report.

Lucy

Lucy phenology report - Sept. 5, 2023

A Ruffed Grouse jumps for low-hanging crabapples. The grouse is in mid-jump, with its feet just off the ground and its wings extended. Its neck is stretched up as it looks at the berry (off camera).
Contributed
/
iNaturalist user ayatana_biophilium
A Ruffed Grouse jumps for low-hanging crabapples.

Lucy sent John this note:

“There are a family of grouse (one adult and four juveniles) feeding in my yard. Yesterday something spooked them and two flew hard into my windows. Both recovered; however I was hoping for a roasted bird dinner.

“Once settled, they comically fed on my neighbors’ high bush cranberry: One deep in its branches, the others fluttering up and down off the ground capturing berries. It was like watching kids jumping up for a high apple.

“They’re back this morning, looking into my patio window and edging their way to my baby highbush cranberry shrubs. The group gathers under the same conifer I saw them emerge from early last spring when there was still a foot of standing snow.”

John also had a grouse fly into his window this week! He went to look after hearing the crash and found the grouse staggering across his deck as if it had just come home from a long trip to the bar. Eventually, however, the grouse was able to fly away, so it likely recovered from its mishap.

Season Watch Facebook Feature

Season Watch Facebook Feature phenology report - Sept. 5, 2023

A tormentose burying beetle is swarmed by mites. The black beetle is barely visible under a swarming array of tiny brown mites.
Contributed
/
Elisa Rachel via KAXE-KBXE Season Watch Facebook group
A tormentose burying beetle is swarmed by mites. Screenshot from video.

Each week, I ask John to comment on a post from the KAXE/KBXE Season Watch Facebook Group. This was what I wrote:

“Elisa Rachel posted a video of tiny, fast-moving insects swarming over a beetle’s back. Do you have any idea what’s going on here? Are they the beetle’s babies? Are they tiny ticks? Is this as terrifying as it looks? I have questions and quite a few concerns, John, please help.

“P.S. In the unlikely event you’re as mystified by this as I was, I (Charlie) did a little digging.

“I'm medium-confident that the underlying beetle is a tomentose burying beetle. These beetles are well-known for having hitchhiking mites, which don't feed on the beetle itself but on fly larva. The beetle feeds on carrion where fly larvae are abundant, so by hopping a beetle-back ride, the mites get a free trip to the ‘restaurant.’

“This particular beetle is likely carrying more mites than it bargained for!”

I’m glad I included the postscript, because John was mystified by this phenomenon as well! It reminded him of a time he was looking at a tiny bug through a hand lens (it was too small to view without one). After a minute of admiring the insect’s beautiful colors and patterns, he noticed that there were three even tinier bugs on the insect’s body!

Even bugs have bugs, friends — for better or for worse, we're all just walking microhabitats. I’d have to agree with John: “It’s a pretty interesting world out there, and we try to make it even more so on Tuesday mornings.”


That does it for this week! For more phenology, subscribe to our Season Watch Newsletter or visit the Season Watch Facebook page.

Funding for this project was provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources (LCCMR).

Stay Connected
Charlie Mitchell (she/they) joined the KAXE team in February of 2022. Charlie creates the Season Watch Newsletter, writes segment summaries for the website, and coordinates our Engaging Minnesotans with Phenology project. With a background in wildlife biology, she enjoys learning a little bit about everything, whether it's plants, mushrooms, aquatic invertebrates, or the short-tailed shrew (did you know they can echolocate?).