January 27, 2019

Ten Little Celebrations – January 2019

January 27, 2019/ Gwen Morrison

As usual – it is easy for me to find little celebrations every day…and here are the top 10 for January 2019.

Getting rid of ‘stuff’ – My husband and I celebrated taking two loads of ‘stuff’ to the landfill (trash and recycling) and donation. I feel like we are finally making progress in getting rid of things we no longer need. We managed to fix 4 floor lamps that we thought were broken…just before we were set to take them to the landfill.

Wedding anniversary – My husband and I usually have a quiet celebration when our wedding anniversary comes around just after Christmas and the beginning of the year. We’re always pleased with ourselves for becoming long-time marrieds….but realize that it has been easier for us than it is for so many others.

2019 01 IMG_1076.jpg — **A morning hike at Mt. Pleasant** – It was muddy but otherwise an excellent day for a winter hike. I enjoyed getting outdoors.

2019 01 IMG_1404.jpg — **New hiking boots** – I celebrated getting new hiking boots. The lining of my 4-year-old boots was tearing. I bought the same brand (Merrell) but waterproof and a little wider to leave more room for bunions and thick socks.

No cavities – I went to the dentist for a checkup and celebrated ‘no cavities’ or anything else that required follow-up! It’s been that way for the past few appointments…and I’m glad my teeth seem to be OK and stable.

Anticipating Zentangle class – I registered for a Zentangle class scheduled for late March and started working through the pre-work….what a joy and worth celebrating both the tiles I am creating now and the anticipation of a great experience in the class.

2019 01 IMG_1295.jpg — **Walking in snow at Belmont** – I celebrated the beauty of snow on the landscape….and that my boots didn’t leak!

**Witch hazel blooming** – What a thrill to find the burst of color in the browns, dark greens, and whites of a winter day! I like that the petals are like little streams as well…. appropriate for a celebration.

**Peppermint snow ice cream** – Yum! Yes, I was very cold after I ate it but is was well worth it…celebration-worthy food!

Macro photograph collection – I celebrated the macro photographs I’d made over the past year or so as I prepared charts for a presentation. I have enjoyed the clip on macro lens more than any other photography accessory!

January 26, 2019

Gleanings of the Week Ending January 26, 2019

January 26, 2019/ Gwen Morrison

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.

Learning Rule: Quantity, then Quality | Scott H Young – Quantity as an initial strategy is probably what I do most of the time….but I throw in a healthy dash of variety of mediums as I go after quantity. And I push myself to actively apply while I am learning all along the way.

Serious loneliness spans the adult lifespan but there is a silver lining: Feeling alone linked to psychological and physical ills, but wisdom may be a protective factor -- ScienceDaily – Most of the time we hear only about the negative impacts of loneliness (the emotion….not necessarily the physical situation). But there are many people physically alone but who don’t feel lonely. This study had a broad age rage of participants and looked at loneliness from multiple perspectives.

Aerial photos of U.S. national parks from space – National treasures…hope that the damage during the government shutdown is not widespread. Joshua Tree has been in the news….very sad.

Nutrients in blood linked to better brain connectivity, cognition in older adults -- ScienceDaily – Reinforcement that we need to eat foods with omega-3 and omega-6 fatty acids, carotenoids, lycopene, riboflavin, folate, vitamin B12 and vitamin D. The fatty acids and carotenoids are particularly linked to better functional brain network efficiency.

The Biggest Science News of 2018 | The Scientist Magazine® - Just catching up on some end-of-2018 interesting posts. I had heard about some of these during the year – but missed some too.

The immune system's fountain of youth: Helping the immune system clear away old cells in aging mice helped restore youthful characteristics -- ScienceDaily -Early days…a lot more research needed. But an interesting idea…helping the body clear out old cells.

There’s a huge and hidden migration in North America — of dragonflies - The Washington Post – It appears that dragonflies migrate. The Monarch is the ‘poster insect’ for migration but it seems like there are more and more articles coming out about other insects that migrate too.

Meeting the Challenge of Feeding 10 Billion People Sustainably in 2050 - News | Planetizen – Land and water to grow food for an expanding population. It’s going to be challenging.

I Dug a Green Grave and Learned the Truth About the Dirty Death Industry – There is a Green Death Movement…and an example is in the Adirondacks called Spirit Sanctuary. In this case the goal is to return bodies to the Earth and preserve a landscape. Interesting…and far more sustainable that the more common burial practices (that include preservatives and waterproof vaults, sealed caskets) and cremation.

The Surprising Evolution of 'The Great Wave of Kanagawa' by Hokusai – A little art history.

January 25, 2019

Twigs and Witch Hazel

January 25, 2019/ Gwen Morrison

I have been looking more closely at twigs of trees recently and trying out simple dichotomous keys. As an example: here is one I looked at during a class on winter tree identification. Looking at the full branch – it was obvious that the leaf scars were opposite. Next, we needed to look at the leaf scars in more detail. There were hand lenses for everyone but I used my 15x lens clipped to my phone so I could share what I was seeing. The leaf scar was D shaped and had three bundles. And the new growth was red. We had to break the twig to smell it…its didn’t smell rank, so it was a RED MAPLE.

It turns out that multiples buds at the twig tip is indicative of maples and oaks…and that maples are opposite, and oaks are alternate. So – it’s possible to take a picture looking up into a tree and make a tentative identification. For example – this was a picture I took in my neighborhood with alternate branching and multiple buds at the end of the twigs – an OAK. I had been using the relative height of the trees in my neighborhood (oaks are taller) but this identification is better and maybe easier too for the street trees planted by the builder 25-30 years ago – oaks and maples.

I couldn’t resist taking a picture of the crumpled bark on the red maple twig. I wonder if they smooth out as the twig grows when the weather warms?

On a more colorful note: be on the look out for witch hazels. Some bloom in the fall but others bloom now. There is one at Howard Country Conservancy’s Mt. Pleasant location that I am watching. Hopefully bitterly cold weather will not damage the flowers that are beginning to unfurl.

January 24, 2019

Smartphone Nature Photography – part 2

January 24, 2019/ Gwen Morrison

Continuing from yesterday’s post….

Identification. Sometimes I take a lot of photos so I can identify something later. This was the case with these caterpillars. They were devouring dogwood plants at Brookside Gardens last summer. They remind me of lemon bars (yellow custard underneath powdered sugar). I defaulted to thinking they were a moth or butterfly larvae…but they turned out to be a dogwood sawfly larvae!

Stories. Some pictures tell a story. If you are aware at the time…make sure you take the pictures of the whole story. This Achemon Sphinx Moth was discovered by summer campers going out between rain showers during a nature photography activity. Moths are more active at night and usually are hiding in foliage during the day. This one was on the ground and twitching. I knew from experience in the Brookside Gardens Wings of Fancy exhibit that it had probably been bitten by a spider. We took our pictures and left it where it was. I regret that I was too busy helping campers to keep my camera at the ready to shoot the moth being pulled between two rocks – presumably by the spider that never did make itself visible.

Insects. Insects can be very fast moving and difficult to photograph no matter what camera you have. They often are slow or immobile when it is cooler. Cool mornings are good to find cicadas – silent and still…but maybe not dead. Butterflies can be under leaves roosting if it’s cool…or it is dusk and they are seeking a place to spend the night. Then there are masses of milkweed bugs that are prevalent in the fall. They are moving but there are so many that it’s easy enough to get a good number; I always try to figure out how many instars are shown in the same picture.

And sometimes it is just luck. This blue morpho sat on my wrist while I was at the exit of last summer’s butterfly exhibit at Brookside Gardens. I had my phone on the lanyard so was able to pull it out and one-hand the phone to take the picture.

Specimens. There are nature photography shots that might be of specimens rather than out in the field. The shot of the blue morpho wing was from a specimen that had died using the 15x macro lens. I’ll try the 60x next summer. I included the label in the picture of the dogwood tree cookie…for documentation; I liked the irregularity of the rings.

Wet day color. Sometimes a rainy-day hike is a good thing. The color of fungus is often more intense on these days – and the phone handles the raindrops better than more traditional cameras.

Light. Sometimes an image is made by something special about the light – spotlighted ferns, the shadowing of a sectioned Nautilus shell, a sunrise.

Clipping. Because the camera only has a digital zoom, I often take the picture without zooming then make a clip after I get home. In the example below – the two butterflies (tiger swallowtail and male monarch) are clearly identifiable even though the clip has a painterly look.

So – go out and take some pictures! The only blooms we have outdoors right now are the witch hazels. There are other winter opportunities too: tracks in the snow (or mud), seed pods, snow landscapes, and ice crystals. And maybe a squirrel will be close enough and still enough….

January 23, 2019

Smartphone Nature Photography – part 1

January 23, 2019/ Gwen Morrison

We almost always have our smartphones with us….ready for those natural events that just happen and for planned photoshoots. I pulled together a presentation of a Maryland Master Naturalist retreat on the topic and am using it as a basis for the blog posts for today and tomorrow.

Gear

Learn about the camera in your phone. Two critical aspects: 1) Usually the autofocus is reasonably good but tapping on the screen where you want the focus to be can sometimes improve results. Do some experiments to see how close you can be and maintain the focus on your subject. 2) Realize that the zoom is digital – not optical. You are better off getting close to your subject rather than zooming. This is difficult if your subject is an animal that will move if you get close. Birds are notoriously difficult to photograph with a phone.

Consider a lanyard. I like to carry my phone on a lanyard (one that is structured to not obstruct the camera) so that I can be ‘hands free’ while I am hiking or rolling over logs…just doing regular naturalist things. I want my phone to be easy to access – easier than getting it out of a pocket or pack.

I enjoy using **macro lenses**. I have 3 different kinds (8x, 15x, and 60x) and tend to use the 15x clip the most. Sometimes I just have it on my phone so that I can move it over the camera as needed. The depth of field is very shallow with the magnification and the phone must be close to the subject. Practice the best stance to steady your hands. I find that tucking my elbows into my body helps….and using one had to hold the phone and the other to take the picture.

Examples of Smartphone nature photography

BioBlitz. Almost all the BioBlitz pictures are taken with smartphones or tablets. Sometimes we use hands for scale – and sometimes the macro lens gives a new perspective! These are pictures taken during BiobBlitz: spotted salamander, wooly bear caterpillar, milkweed.

Landscapes. The joy of being outdoors! Try to get something of high interest in the landscape: the trail as a leading line, clouds over the trees, an early winter scene with bare trees/large rock/pines.

Macro. The macro lens offers to many opportunities to observe more closely than you can observe with just your eye: clams filter feeding, the center of sunflower.

A chicory flower, a newly hatched Monarch butterfly caterpillar turning to eat its egg covering, and damselfly larvae.

A few minutes observing. I play a game with myself looking closely at one thing and taking photos as fast as I can over a short period of time. In this case it was a sweet bay magnolia. There were seed pods at several stages of development and some eggs under a leaf (maybe a leaf footed bug…if I was patient enough I could see what hatched but that was outside my time box).

(To be continued tomorrow…)

January 23, 2019

Belmont in January 2019

January 23, 2019/ Gwen Morrison

January 22, 2019

Winter Tree Identification – Part 2

January 22, 2019/ Gwen Morrison

Continuing from yesterday -

Seeds that help with identification include tulip poplar (the pods stay on the trees releasing the seeds during the winter breezes to clog up any nearby gutters!),

Osage orange (that fall to the ground and are only moved around my people these days…they were planted for fence rows after the dust bowl because they are hardy, and the seed balls are easily broken apart and planted),

Sweet gum (the spikey seeds are a hazard in suburban yards and drive ways), and

black walnut1.jpg — **Black walnuts** (there are always nuts under the tree but the squirrels may carry then a little further away so look at the shape of the tree too).

Of course – there are trees that are not as easy to identify. That’s why I carry a small book – Winter Tree Finder – when I am hiking in the winter and looking at trees. I found mine at a used book sale, but they are available new from Amazon as well.

January 21, 2019

Lunar Eclipse 2019

January 21, 2019/ Gwen Morrison

I went to bed early and set an alarm on my phone to wake me up at 11:45 PM to photograph the total lunar eclipse last night. The time for totality in our area was 11:50 PM – 1 AM. My first plan to was photograph it through a window…but my husband told me before I went to bed that it was likely going to be too high in the sky to see from a window. He was right. I bundled up and went out to the driveway with my camera on a monopod. I knew I would not want to stay outside long.

It was very cold and windy too. My eyes started watering almost immediately. I set my camera to ‘handheld night scene’ and let it do its best. In that setting it takes multiple pictures and stitches them together in the camera. It worked reasonably well and within 10 minutes I was back in the house and heading back to bed.

2019-01-20-Lunar eclipse-024-2.jpg — My husband – who had his camera on a tripod and stayed out a lot longer than I did – got a better shot.

When I got up the next morning the moon was descending into the trees behind our house – back to its normal full-moon color. This time I could take pictures through a window. The temperature outside was in the low teens.

January 21, 2019

Winter Tree Identification – Part 1

January 21, 2019/ Gwen Morrison

Leaves are an easy first step to identifying a tree…but not in the winter. Other identifying characteristics come to the fore. I’ve collected up some photos from the past few winters and will show the ones I find easy to identify even in the winter. Do you recognize the white barked trees that grow near rivers and have round seeds that often stay on the tree during the winter?

The sycamores are common in our area and are easier to spot in the winter than in the summer when their big leaves sometimes hide the whiteness of their branches.

They are only one of the trees that have distinctive bark. Others are spicebush (it can be a bush or understory tree) and beech below. They both have relative smooth bark. The spicebush is speckled with light colored lenticels.

Both the sycamore and river birch have peeling bark.

honey locust.jpg — Sometime thorns can be an identifying characteristic – like with the **honey locust**.

The bald cypress is the only conifer I’m including in this post since it sheds its needles for the winter. It is easy to recognize by its shape and the presence of knees…and that it likes wet areas.

The dogwoods have distinctive buds. Sometimes they are described as onion-shaped. They look more like slightly flattened Hershey’s kisses to me!

January 20, 2019

Belmont in January 2019

January 20, 2019/ Gwen Morrison

Last week, I attended a lecture for Howard County Conservancy volunteers at the Belmont Carriage House – arriving early to walk around a bit before the lecture. There was still quite a lot of snow on the ground.

I stayed on the cleared roads until I made the trek up to the old cemetery.

The old tulip poplar looks even more ancient in the winter with all the hollows and bark injuries more clearly visible. It had a lot of seed pods from last season just as the younger trees do.

2019 01 IMG_1276.jpg — One of the people I was hiking with pointed out an ash tree on the Patapsco Valley State Park side of the cemetery that had evidence of emerald ash borer (the lighter color on the bark). This tree will have to be cut down before it falls on the cemetery taking down fences and stones.

On a positive note – the hemlocks in the cemetery seem to be thriving. A few years ago they were infested with wooly adelgid but they were treated and it seems have saved them.

The wind must have ‘pruned’ the holly in the cemetery. A branch was draped from one of the headstones – no footprints in the snow around the headstone.

2019 01 IMG_1286.jpg — There were lots of deer tracks in the snow as we walked up to the cemetery and back. We didn’t see any rabbit tracks. Maybe a coyote?

We circled back along the row of white pines. The snow stands out even on a very cloudy day.

It was time to head back. I stopped near the mailboxes to take a picture of the pond with the bald cypress standing just to the left of it. It does have a classic cypress shape but if I wasn’t familiar with the tree, I’d have to hike down to the pond and see the cypress knees that surround it for a definitive identification.

January 19, 2019

Gleanings of the Week Ending January 19, 2019

January 19, 2019/ Gwen Morrison

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.

After More Than 4,000 Years, Vibrant Egyptian Tomb Sees the Light of Day: NPR – Hopefully they will take steps to keep the colors vibrant now that the tomb is open to people and light.

The Bizarre and Disturbing Life of Sea Cucumbers – Cool Green Science – Way more complicated than they appear at first glance.

Norway's Energy-Positive Movement to Fight Climate Change - The Atlantic – Norway has some buildings that generate more energy than they use.

Life Deep Underground Is Twice the Volume of the Oceans: Study | The Scientist Magazine® - That’s a massive among of carbon in life that we know very little about….so many unexpected and unusual organisms.

Foods that lower blood pressure | Berkeley Wellness – And the list even includes dark chocolate!

Rising Waters Are Drowning Amtrak’s Northeast Corridor – This article includes time phased projections from 2018 to 2100…lots of track is going to need to be moved – or some other flood mitigation will need to be built.

Google Virtual Tour Preserves Collections Destroyed in Brazil Museum Fire | Smart News | Smithsonian – Some heartening recovery from the tragedy of the fire…Google’s virtual tour work, 1,500 pieces recovered from the debris, and a growing collection of photographs and video clips of the museum the way it was.

Soggy 2018 for the Eastern U.S. – An article from mid-December…showing just how wet we were in 2018. We live between Baltimore and Washington DC….soggy indeed.

New houseplant can clean your home's air -- ScienceDaily – Our houses have become so tightly sealed that concentrations of chemicals that are hard to filter out can accumulate. Maybe ‘engineered’ plants can be a solution.

Periodic graphics: How different light bulbs work – The trend is toward less cost/hour….more hours. Hurray for the LEDs that are not as blue as the compact fluorescents!

January 18, 2019

Snow Day

January 18, 2019/ Gwen Morrison

2018 01 IMG_1132.jpg — Last Sunday was a snow day for us. It had snowed all night and was still snowing when I got up. Our neighbor had a spotlight on and it illuminated the back of our house enough that my camera’s ‘hand held night scene’ setting was enough to capture the snow draped over pots and chairs on our deck. In the front of our house there was less light – but the oak near our driveway was visible in the darkness.

There was no sunrise color – the clouds were too thick – but the day brightened a little. Snow was accumulating on the bushes.

I went out to measure the depth of the snow about 9 AM; it was about 5 inches and snow was still coming down.

The day was brightening a little more.

We shoveled the driveway. The snow was heavy enough to stick together but not too heavy to shovel easily. I took a before and after picture.

I took a picture of the kokopelli metal sculptures dancing in a low pot on the deck from my office window

When we came inside my husband started a fire in the fireplace and I went out to skim the top inch of snow off a portion of our deck and into a big pan. I left it outside to stay frozen while I gathered the other ingredients for snow ice cream. I had purchased some French vanilla coconut creamer (sweetened) that substituted for the usual milk, sugar, and vanilla; I added the last of the peppermint candy chips I had bought before Christmas. The snow went into the biggest bowl I have and then the milk and peppermint candy mixture. My handheld mixer does a great job mixing everything fast enough that the snow doesn’t have time to melt. The color from the candy was my indicator that the ice cream was becoming thoroughly mixed. I had to add a bit more creamer because the snow was so icy; it looked crumbly instead of creamy.

Yummy! It was the best snow ice cream I’ve ever made! My husband and I had two servings each – ate the whole batch in one sitting.

January 17, 2019

Treks to the Landfill

January 17, 2019/ Gwen Morrison

We’ve made two treks to the county landfill/recyling this month – getting a jump on ‘spring cleaning’ while we’ve had some days at home. The county has a drop-off area for both recycling and trash – easy to drive up to the appropriate area and unload. Our focus has been on things that can’t go in the weekly trash or recycling curbside pickup because of size or what they are. Many of them are so irregularly shaped that the car can’t be loaded all that effectively.

Electronics have been part of both loads: computer monitors and keyboards…an old (not working) television (predated flat screens!). They have big bins for smaller items and pallets for the large ones.

Then there was trash: broken lawn chairs, deteriorating badminton stuff, and broken miniblinds. The drop off area has a long row of Jersey walls with big containers behind them at a lower lever – easy to drop items into the bins.

We also noted that that they have a reusable bicycle drop off – we’ll bring my daughter’s 15-year-old bike on our next trek to the landfill!

We thought there might be a bin for donations of household goods but there wasn’t. We stopped by Goodwill on the way home and dropped of 6 boxes of stuff.

It’s good to be making progress on our ‘clean up and out’!

January 16, 2019

Mt Pleasant in January 2019 – Part 2

January 16, 2019/ Gwen Morrison

Continuing the images from last week’s hike at Howard County Conservancy’s Mt. Pleasant….

I noticed a bluebird box with lichen growing on its roof. I wondered how long the houses lasted. This one had a plaque below it saying it had been installed in 2009 so it’s held up for 10 years!

There was some farm equipment near the edge of a field – covered in vines. It must not have been used for at least one season…and maybe longer. Nature is taking over! I didn’t get close enough to determine what kind of vines they might be – mile-a-minute or oriental bittersweet (both invasive) would be a good beginning guess.

With the record amount of rainfall we got in 2018, there was a root ball of a tree that fell – probably last spring. What a dramatic change it must have been for the organisms around the roots before it fell…there would be a complex story to document different organisms came along after the tree feel and the elements alternatively dried out and filled in the hole (with water or soil washed into the hole). Nature is always in motion!

A beech tree had been cut down and the big logs left in place. Maybe the tree had fallen and was cut up to clear the trail or maybe it was a standing dead tree that was cut before it could fall. The center was rotting. The beech bark looks so smooth from a distance but often looks wrinkled upon closer inspection.

Ranger, the barred owl, is back in his quarters near the nature center. He seemed very calm as we hiked by. There aren’t school fieldtrips with lots of students to crowd around his space during the winter; it’s easier for him to be Zen.

It was good to be back at Mt. Pleasant for a hike…maybe I’ll go again sometime with my husband…wear boots that can get muddy and hunt for skunk cabbage peeking through the muck.

January 15, 2019

Mt Pleasant in January 2019 – Part 1

January 15, 2019/ Gwen Morrison

2019 01 IMG_0989.jpg — My first hike at Howard County Conservancy’s Mt. Pleasant was last week on a cold, blustery day after a night rain. We were prepared for the cold and managed to work our way around the muddy parts of the trails. The sun played hide and seek with the clouds. I was taking pictures of winter trees. I am very familiar with a black walnut near the rock wall on the meadow side.

The nuts on the ground all around it would give it away even if I didn’t know it was a black walnut. I am always amazed that the squirrels can get the shells open with their teeth.

The path along the wall was in relatively good shape – still mostly covered with grass. We didn’t go all the way down to the Davis Branch…but cut across the meadow mid-way down the hill.

We took the long way around to an overlook of the Branch since the lower trails were too muddy to attempt.

The water was not high, but everything looked wet. I was noticing the beech trees – easy to identify by their smooth bark.

One of the root balls that had been placed upside down in the restored part of the stream had been washed downstream by an earlier flood…and was still balanced where I’d seen it last fall. It will stay there until the next big flood. It had a collapsed pillow-like orange fungus growing on it.

2019 01 IMG_1040.jpg — A river birch is easy to identify with its curly bark.

As we turned back toward the nature center, I noted that one of the trees across the smaller stream had finally rotted enough to collapse.

The only ‘bloom’ I saw on the hike was the beginning of the witch hazel bloom on the tree near the farmhouse. The streamer like petals are still curled up in the opening flowers. I’ll have to remember to look at the tree every time I go to Mt. Pleasant over the next month or so!

January 14, 2019

Winter Walk in the Neighborhood - 2

January 14, 2019/ Gwen Morrison

I noticed a lot of mud as I walked in our neighborhood. Some of it was on the sidewalks – not something I’d noticed in previous years. 2018 was a record rain year for us…and we’ve continued to get rain in the first part of 2019.

There is mud where grass used to grow under many of the trees.

Sometimes the trees would have made the area very shady before the leaves fell but most of the branches of trees along the street are trimmed high by the county so emergency vehicles can get down the street without being damaged. There is still a lot of bare soil under them.

I am already thinking about what alternatives I have for the area under our plum tree; since we have a challenge with deer eating tender plants, my first idea is to simply mulch out to the dripline of the tree.

A squirrel was rooting in a raised bed in one yard. He noticed me, but I was far enough away (using the zoom on my camera) that he continued his investigation.

January 13, 2019

Winter Walk in the Neighborhood - 1

January 13, 2019/ Gwen Morrison

I took a walk in our neighborhood on the warmest day last week. It was a blustery day – felt more like March than January. I walked down to the storm water retention pond first. It still looks relatively barren but there is vegetation on all the slopes.

2019 01 IMG_0868.jpg — The cattails are beginning to repopulate the shallows. I wondered if there were enough for the red winged blackbirds to come back to the pond. Maybe more cattails will come up next spring from the roots already in the mud…if they aren’t drowned from all the rain we’ve gotten.

The wind was blowing oak leaves onto the water.

Younger oak trees often keep their leaves well into winter. Or course – every breeze takes a few more leaves away but there were enough left on some of the trees in our neighborhood to still use the leaf shape to say definitively – it’s an oak. The tree in front of our house retained it leaves did years ago but is now old enough that its leaves drop in the fall.

2019 01 IMG_0917.jpg — As I looked back along our street, I realized that the general way to tell the maples from the oaks planted along the street by the builder is to look at the height. The taller ones are oaks.

January 12, 2019

Gleanings of the Week Ending January 12, 2019

January 12, 2019/ Gwen Morrison

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.

I have a growing list of gleanings from sites that are not operational because of the partial government shutdown; they’ll come out in the list for the Saturday after the sites are operational again.

Climate, life and the movement of continents: New connections -- ScienceDaily – Sediment, which often includes pieces of dead organisms, may create a lubricating effect between plates, accelerating subduction and increasing plate velocity!

BBC - Future - Six reasons your memory is stranger than you think – Timelines are hard (many times inaccurate) from memory…I’m glad I keep a running list of important family travel and events.

Regenerative Cities: An Urban Concept Whose Time Has Come! | CleanTechnica – Re-thinking what cities of the future could be.

Scientists call for eight steps to increase soil carbon for climate action and food security: International coordination and financing essential -- ScienceDaily – Big benefits…but hard to come by the collective push to obtain them.

Earthquake Damage Detected in Machu Picchu - Archaeology Magazine – Evidence of an AD 1450 earthquake that damaged Machu Picchu is seen in cracks and stone damage of the buildings. The Inca’s modified their construction techniques after the event too.

Shrinking of Utah National Monument May Threaten Bee Biodiversity | Smart News | Smithsonian – Grand Staircase-Escalante is home to 660 bee species, 84 of which live outside of protected land under changes. At a time when we know pollinators are under stress…one more reason why our Federal lands are needed as refuges from human activities that damage the environment.

Scientists Don't Stay for Long in Their Jobs Anymore: Study | The Scientist Magazine® - About half of scientists who enter a scientific discipline drop out after 5 years; in the 1960s, it was 35 years. We are probably training more people in science fields but many don’t stay in academia. This study used publishing records to determine if a person stayed ‘in the discipline.’ I’d prefer to see numbers of people that had careers in a STEM related field rather than just the one they trained in and find another metric than published papers to make the determination. There are a lot more jobs today where people use their science training that do not use ‘publication’ as a measure of success.

BBC - Future - Can we cheat ageing? – Some areas of active research to help us stay healthy longer (may or may not help us live longer).

Corn Domestication May Have Taken Thousands of Years - Archaeology Magazine – It all started 9,000 years ago in southern Mexico. The process continued in Mexico and the southwestern Amazon for several thousand years. It was a slow process.

Ring in the New Year With Dazzling Total Lunar Eclipse of a Supermoon | Smart News | Smithsonian – Hope we have good weather on January 20-21….since it should be visible from our house!

January 11, 2019

There used to be hemlocks

January 11, 2019/ Gwen Morrison

We’ve lived in our current house for almost 25 years. The forest behind the house was one of the reasons we bought it in the first place; my office is the best room in the house because of the view from the window. Over the years the trees have grown – the maple in our yard acting as a foreground to the taller tulip poplars behind. There is a holly that is the only tree that keeps its green in the forest.

But it wasn’t like that in the beginning. The forest is growing on a slope…down to the Middle Patuxent River. You can see the sky through the trees because of that slope and because the hemlocks that used to grow in the forest are all gone. I remember seeing them in the early years; the trees seemed to have crows at the top frequently; I always thought there must have been crows’ nests in the hemlocks. But then West Nile Virus killed almost all the crows and wooly adelgid – I am assuming - killed the hemlocks.

I don’t know exactly when it happened, but the hemlocks are gone, and they won’t be coming back. The crows, on the other hand, seem to be rebounding. I have seen more each year for the past several years. Today I am missing the hemlocks.