Gleanings of the Week Ending January 16, 2021

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Wingspan and Other Tabletop Games for Naturalists – A new indoor activity for during the winter?

Square Structure Detected Under Monte Albán’s Main Plaza - Archaeology Magazine – The plaza was in use for 1,000 years….and evidently the structure detected with ground penetrating radar, electrical resistance and gradiometery is 60x60 feet…and about 3 feet thick. More study of the data might reveal if the building had stairs, tunnels, and columns.

Leaf microbiomes are a neighborhood affair in northern forests -- ScienceDaily – The microbes associated with trees have been an active research area in recent years. This study looked at Sugar Maples and discovered that their microbiome was similar to the trees around them…whether it was other sugar maples or conifers….other species entirely.

A warm pool in the Indo-Pacific Ocean has almost doubled in size, changing global rainfall patterns | NOAA Climate.gov – The impacts on large-scale atmospheric circulation and rainfall are expected to intensify in the future.

Top 25 birds of the week: January 2021 – This collection includes a photo of a red-breasted nuthatch…a bird we’ve seen at our feeder this year!

Photographer Nathan Myhrvold Captures Snowflakes in High Resolution – I enjoy trying to photograph snowflakes…but I do it close to home where the challenge is higher temperatures. That tends to cause them to clump rather than be easily separated into single flakes. It’s still a fun activity for snow days.

New mammogram measures of breast cancer risk could revolutionize screening -- ScienceDaily – Improving the way mammograms are analyzed…giving results at the time of screening instead of later then moving toward personalized screening thereafter rather than ‘one size fits all.’ I wonder how long it will take for this to trickle through the industry.

Flapper style | Europeana – Our family has a picture of one of my grandmothers in a flapper dress. She probably made it herself – as the article indicated…they were easy to make and patterns were available. The dresses have a timelessness to them even though they are associated with the 1920s. They look great as party dresses even 100 years later!

'Sparkling' clean water from nanodiamond-embedded membrane filters -- ScienceDaily – The problem the researchers are addressing is filtering of the hot water from oil recovery and other industrial processes. We’ll need more technologies like this to clean up water we can’t afford to leave polluted forever….but we should concurrently move toward technologies that don’t leave toxins in water. Technologies should be designed with the goal in mind of 0 waste.

Researchers Catch Oldest Tropical Reef Fish Known to Science | Smart News | Smithsonian Magazine – An 81-year-old midnight snapper! They also caught a 79-year-old red snapper in the same area. Climate change is already warmed the reef enough that the life-span of the fishes there is expected to be shorter in the future. The record for oldest known vertebrate in the world is also a sea creature – a 400 year old Greenland shark.

Belmont – March 2019

Howard County Conservancy hosted a training session at Belmont for upcoming elementary school BioBlitzes last week. I hadn’t been to the location since January, so I looked around before going into the Carriage House for class. The plane trees (they are like sycamores but are a little different – have some seed balls in pairs rather than single) seemed full of seed balls. We’ve had quite a lot of wind and the fibers holding the balls to the tree look worn at this point. I wondered how long they would stay attached after I saw the zoomed image through my camera.

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It was sad to see the stump of the red maple they had to cut down recently. Evidently it lost a lot of big branches during some of the recent winds. The colors in the stump drew my attention. The tree was not extensively rotten but there were some insect holes. The stump would have to be sanded to count the rings. The tree had been struggling in recent years, but I always pointed it out because it had small branches low enough on its trunk for children to see the flowers and leaves.

It also had a root that was above the surface and been injured by mowers…but still survived.

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I almost always pointed out the red maple to contrast with the nearby sugar maple – which is still standing with some ivy growing on it. It was a good concept for student to think through – how the trees were alike and how they were different…both maples.

The class had an outdoor portion to try out the app and tablets the students would be using. I used the time to take a few more pictures. There were crocuses blooming in the grassy area near the mailboxes.

The wind had blown pine cones and sweet gum balls into the same area.

The pond still looked like it has all winter. The clouds had rolled in while we had been indoors. And this landscape shows the dimness of the day.

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I turned back to the view the manor house and notice a maple that no longer had its upper branches. One of the them was very rotten. But the tree is still blooming!

We headed up to the cemetery and I checked the hemlock. The tree looks like the treatment for wooly adelgid has worked. I tried an experimental shot with a cone highlighted…and blurry branches above and below.

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By the time I am at Belmont again – there will be even more signs of spring.

Saturday Hike – Part I

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Last Saturday, I lead a hike from Howard County Conservancy’s Belmont Carriage House down to the Patapsco River. It was a cool gray morning – a good day for a fall hike.

The starlings and male brown-headed cowbirds were busy around the carriage house when I arrived.

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I appreciated the leaf color of the sugar maple near the carriage house since most of the other leaves in our area seem to be staying green on the trees or falling off before they change color

I noticed that the pods on the butterfly weed had opened but the seeds were still tightly packed inside. Perhaps the rain has come frequently enough this year that the white fibers haven’t dried out enough to become the parachutes for the seeds.

That was the calm before the hike. The list of people that had signed up was long – over 50 people. But only 21 showed up. That was large enough and I was glad that another volunteer was available to bring up the rear on the way down and be at the front for the uphill trek.

More about the hike itself in tomorrow’s post.