In the Middle Patuxent River – Day 1

Last Monday, I volunteered through the Howard County Conservancy to help with a high school Stream Assessment in the Middle Patuxent River off the Kings Contrivance Loop trail. It was raining when I left the house before sunrise and continued through the assessment.

It was starting to get lighter when I arrived at the site and helped to set up for the macroinvertebrate collection and identification.

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We discovered very quickly that the white boards would not work in the rain – even if we wiped them off immediately before we tried to write.

Fortunately, the rain was gentle and water still relatively clear. This part of the river is silty…not a lot of cobbles.

We found quite a few critters. There were at least 3 different kinds of dragonfly larvae; I had never seen the kind with a more rounded abdomen. All the other critters were the more typical ones.

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Paper was quickly damaged in the rain. The students took pictures and (hopefully) enough data sheets will survive to make a good composite data set for the class. I took a picture of one of the sheets. The macroinvertebrate analysis done on site showed the river to be in the moderate range.

The students finished and headed to their buses. As I made my way up the hill to my car, I stopped to look at some of the feeder rivulets along the way (there were bridges although I could have easily walked across these with my boots). There were some signs of erosion along the banks….it wasn’t as bad as I thought it might be after our recent downpours.

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There were also some colorful fungi. Orange is seen frequently.

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There was an area with a lot of shelf fungi on logs. It was so damp that some seemed to have something green growing on them.

My favorite was nearby – bright red and orange with yellow on the edge.

Signs of a Beaver

I was at Howard County Conservancy’s Mt. Pleasant Farm earlier this week for some training and we walked down to the Davis Branch. There are two areas along the stream that we use for the 7th grade program.

After learning what would be done at each of those we hiked a little further along on the part of the stream that was restored last year – to see the area that the beaver has started to explore. The indication is some trees that have been downed in typical beaver fashion. The one with the bark stripped looks like a beech tree (beavers eat the inner bark of trees and beeches are one that they like!).

There was a mound of debris across part of the trickling stream and I wondered if it was from our recent wind storms or the beginning of a beaver dam. This will be a place I’ll walk down to see when I come to Mt Pleasant this spring!

Gleanings of the Week Ending January 6, 2018

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.

30,000 Shards of Historic Stained Glass Found in Westminster Abbey’s Attic | Smart News | Smithsonian – Glass found in the dust and dirt that accumulated in the deep cone-shaped pits of the interior of the triforium. Evidently most of it is from the Medieval period.

Streams can be sensors -- ScienceDaily – Using streams to assess the health of a region’s landscapes my lead to more focused actions for sustainable agriculture and development. This research highlights that basic concept but also points to some way to improve the way streams are monitored.

Stunning Images of Hokkaido Covered in Snow by Photographer Ying Yin – It is very cold in Maryland while I’m creating the post…fortunately we only have a dusting of snow.

BBC - Future - The mosquitoes that are fighting dengue and Zika – Increasing mosquito born diseases….new measures.

John Wesley Powell: Soldier, Explorer, Scientist and National Geographic Founder – National Geographic  - A little history – one of the founders of the National Geographic Society.

Scientists find surprising evidence of rapid changes in the Arctic -- ScienceDaily – Chemical changes in the arctic ocean…open waters, increased wave action, stirred sediments. There is a need for international collaboration to understand what is happening.

Hawai’i Volcanos National Park – A reminder of our vacation a few years ago to the Big Island

The Race North – Cool Green Science – Some trees may not be able to move north or up fast enough as the climate changes. Will foresters for the future step in?

New desalination method offers low energy alternative to purify salty water -- ScienceDaily – In places where water shortages are happening (and projected), desalination may become a very important technology.

The Year Climate Change Began to Spin Out of Control - MIT Technology Review – An aspect of 2017 in review. When will everyone decide climate change is an existential issue rather than a political one?

Stream Assessment – October 2017

I had planned to volunteer at two stream assessments by 9th graders in October.  Both assessments were scheduled to be at the Middle Patuxent Environmental Area but one was cancelled after a heavy rain caused a dangerous situation at the stream – so I only have pictures from one stream assessment. The stream was smaller than the two other locations along the Middle Patuxent that were assessed in September. We crossed it on some rocks (the path came to the river  near where the big log is lying on top of the rocks).

All the gear for the abiotic and biotic assessments was set up on the side of the stream across from the path. It was very calm and shady as we set up.

Then the students arrived…60 in the first group…a little break…and then another 60. I took a few pictures of critters during the break.

One last picture before the second group…what a great place to escape into nature. I’m not sure that the students experience the psychological rejuvenation I often feel in places like this when they come with the larger group (and they are teenagers) - although it was obvious that most of them enjoyed being outdoors and in the stream. When we finished the assessment, the students helped carry all the gear – including the boots – on the 15 minute hike back to the road where they got on their buses and we packed up everything into cars….another stream assessment day complete.