Gleanings of the Week Ending June 20, 2015

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.

Soft Tissue Detected in Millennia-Old Dino Bones - New ways of looking at very old bones reveals unanticipated results (but not DNA).

Far From Sterile, Some Hybrids May Start New Species - Coyotes in the eastern US are quite different than their western counterparts and they are beginning to fill the niche left by wolves. Maybe they will help control the too large deer population!

Renewables Reach Highest Share of U.S. Energy Consumption since 1930s - Historical stats about renewable energy...with emphasis on the 1990-2014 time period.

Two similar articles: Why doctors should treat the healthy too and Interventions among healthy people save the most lives - The challenge is that most doctors are trained to treat illness and disability…not help people retain their health.

Data scientists find connections between birth month and health - The data for the study was from 1985-2013…1.7 million patients treated at New York-Presbyterian Hospital/CUMC. It interesting result but the researchers point out that the risk related to birth month is relatively minor compared to the more influential variables like diet and exercise.

The Weirdest (And Most Violent) Ways That Plants Release Their Seeds - Short videos. As with so many things botanical…I could not resist including it in the gleaning list. It includes how violets disperse their seeds and I’ve just started noticing the seed pods this year (I have several locations where I am watching the plants to see the seeds disperse).

Global freshwater consumption crossing its planetary boundary - Scary result.

Biodiversity reduces human, wildlife diseases and crop pests - Another reason to worry about the extinctions happening in the world right now.

Sunrise and Sunset Photos Capture Stunning Wildlife Silhouettes - Ending with some great images…and a reminder of the special light at the beginning and ending of the day.

Master Naturalist Training - Week 6

Last Wednesday was the 6th of eight days of training to become a Master Naturalist in Maryland. We managed to go out for a short history walk at Belmont before the rain started. I noticed a lower branch of the English Elm on the slope in front of the house and got this close up of the buds.

Back inside we talked about native and invasive species in Maryland. I’m motivated to think about planting some ‘natives’ at the edge of the forest behind our house. The area has a lot of deer traffic so I may have to protect whatever I plant.  We have big trees but not many samplings because of the heavy browsing. I am starting with two items in a two small areas: ferns in the dampest area of the yard and a spicebush or service berry or winterberry to provide a shrub or understory level plant in the area where it has gotten too shady for grass to grow well. I still love the crocus, snowdrops and daffodils in the spring - even though they are non-native. Our neighbor has an expanding clump of daffodils at the edge of the woods and I enjoy them every spring. Maybe I’ll plant some bulbs next fall around my young understory tree.

In the afternoon the topic was fish. After a short lecture we did several classification exercises with various fishes on newspaper. I appreciate that gloves were provided…and that my pen worked just find to spread the fins and open the mouth! We headed out to the pond; it was cold and we did not get a single fish in the net although we did recognize scat (from our week 3 lecture on mammals). This one had a lot of hair - so a predator - and too big for fox - so probably a coyote. They seemed to frequent the area around the pond.

I also got some images of the bald cypress from the other side of the pond. See the people to the right of the tree…for scale.

Also near the pond are some trees that were planted in protective tubes that seem to be thriving. One had a delicate birds nest from last summer. The ornithology segment of the course is part of the last class.

I did some follow-up work at home from the week 4 lecture on microbes. I made a spore print with a baby bella mushroom I had from the grocery store. It is an easy process: 1) remove any remaining veil covering the gills on the underside of the mushroom and the stem 2) turn it gills down on a piece of paper 3) cover it with an upside down bowl to keep it from disturbed 4) come back in 12+ hours, carefully remove the bowl and mushroom…the spore print will be on the paper. I was surprised at how much moisture the mushroom leaked onto the paper…next time I’ll not used paper that has printing on the other side!

Another follow-up was from week 5. When we went to the stream - we scraped the rocks with a toothbrush and kept the sample of watery debris in the refrigerator for a week. There was no compound microscope in the building for week 6 as originally planned so I took the sample home to look at with my microscope. And there were living diatoms in the sample! I same two different kinds right away….and will look again sometime this weekend.