Gleanings of the Week Ending March 13, 2021

Spring is starting here in Maryland…we have a clump of crocus up and blooming in our front flower bed!

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.

Top 25 birds of the week: March 2021 – Starting off the gleanings for this with bird photographs. I found myself looking at eye color as I enjoyed this group of 25.

Satellite imagery shows northern California kelp forests have collapsed – I had read a story about this previously….but this article include visuals: satellite image and underwater images of what it look like before…and the urchin barrens that are there today.

Kauri trees mark magnetic flip 42,000 years ago | Science – Analysis of a tree preserved in a bog. It lived during the Laschamp Excursion (the last time the poles flipped) The climate instability lasted about 500 years.

Giving Wildlife Room to Roam in the Face of Climate Change – The importance on microhabitats in wildlife conservation particularly as climate changes.

Small Particulates From Burning Fossil Fuels Kills 8.7 Million People Each Year – And this is a form of pollution no one escapes….unless you choose to live in an enclosed and continuously filtered environment (like on an planet that does not support life as we know it). Right now, there are areas outside cities that have lower levels of the small particles in their air but eventually the continued increase in particles and circulation within the atmosphere will spread the ever increasing particles over the entire planet.

Even for Solitary Squirrels, It’s Better to Know the Neighbors – Red squirrels that have the same neighbors year after year…live longer! The study was done in a remote area of Canada over 22 years.

Thanks to Etsy, You Can Now Purchase a Gee's Bend Quilt Online for the First Time | Smart News | Smithsonian Magazine – Folk art…museums…and a modern outlet to improve the artists’ ability to sell their work.

There’s a Koala in the Backyard – A description of what it’s like to have a koala in a tree near homes – serenading.

Geologists Share Their Concerns With Drilling For Oil In Big Cypress – Hopefully the project will not move forward….a national preserve should prioritize the natural environment, not the degradation or destruction of it.  

Eight ways chemical pollutant harm the body – From Columbia University’s Mailman School of Public Health: oxidative stress and inflammation, genomic alterations and mutations, epigenetic alterations, mitochondrial dysfunction, endocrine disruption, altered intercellular communication, altered microbiome communities, and impaired nervous system function.

Touch Tank – January 2020

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I enjoy the volunteer gig at the Robinson Nature Center Touch Tank….getting more experienced every time I spend an hour there. The Discovery Room, where the touch tank is located, is full of activities for pre-school through elementary school aged children with the Touch Tank being available when there is a volunteer to open it.

There are two kinds of sea urchins: the slate pencil with spines that look like slate pencils from the 1800s and pin cushion with spines that are more prickles. Both names are somewhat historical for young children. Some have never seen a pin cushion! Even the adults haven’t seen slate pencils that look like the sea urchin. Everyone enjoys seeing how the pin cushion urchins ‘hide’ by holding shells and little hats to themselves. The pin cushion urchins can also hang on well enough to hang upside down for a little while on my hand…always a surprise to the children.

Sometimes the sea urchins attach themselves to something else – a rock or a conch. Do you see the pin cushion urchin on the back of the milk conch in the pictures below? The conch was on the move with eye stalks extended and vacuuming up its food from the sand.

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There are three conchs in the tank. The largest is usually the most active.

And then there are the sea stars. I like to look at them through the glass of the tank…with their suction-cup feet out and hanging on. I pick them up for the children to touch – back and front – but I like them better through the glass.

Overall, I am getting more comfortable with the animals in the tank and better at controlling the flow of people (children) around the tank. An hour at the touch tank is always an hour well spent!