Current Event Summaries by Lincoln R.

5 Responses to Current Event Summaries by Lincoln R.

  1. Lincoln Ramey says:

    Title:Climate change study finds that maple syrup season may come earlier
    Author(s): Dartmouth College
    Published by:Dartmouth College
    Date: September 20, 2019

    Article Summary:

    When nights start to get cold usually below freezing but then warm up above that by day sugar maple sap starts to flow. But with global warming and rising temperatures the sap might start flowing faster if it doesn’t get as cold, but this will also affect the sugars and the flow of the sap. Scientists believe if temperatures keep up the syrup season might be coming one month early by 2100 in Northern America. Scientists also found that the tapping season being early may affect how some areas may be unable to produce sap while other areas will be producing much more. New Hampshire and Vermont However will be least affected by this change but will still have a slightly decreasing syrup production. Most areas that have sugar maple trees should see a decrease in production however in south eastern canada trees should see anywhere from slight to very significant increases in production. Scientists will keep tracking climate changes affect on the million dollar industry and keep policy makers, forest managers, and the syrup industry posted if a big change is going to occur. Canadian forests are home to at least 80 percent of the maple syrup production and the US is home to about the other 20.

    Personal Reaction:

    This article reminded me that small things will also be changed by global warming than the big things that everyone talks about like, the icebergs melting.I also thought it was strange that rising temperatures will affect the syrup itself and how it will affect how some areas will be unable to produce sap while others will be able to produce more. I couldn’t think of how this connected to our last unit but I was wondering if it could affect ecosystems and animals that use the sap before it is harvested.

  2. Lincoln Ramey says:

    Title:Scientists track frog-killing fungus to help curb its spread
    Author(s): University of California – Berkeley
    Published by:University of California – Berkeley
    Date: September 23, 2019

    Article Summary:

    A problem among the frog species has started. Diseases are carried on foreign frogs that are being put into new areas and infecting then kill frogs. Scientists are finding facts that lead back to deadly fungi causing these problems and they believe if they can keep the frogs that came from these infected areas where they are they could solve the problem. Scientists use genetic testing to get inside the disease and using DNA maps they can find things with similar DNA in certain areas to trace things back to where they started using different pathogens to try and contain and sometimes stop diseases at the source before they get to large and unable to stop. The name of the main fungi problem is named Batrachochytrium dendrobatidis that was discovered in frog die-off regions worldwide. Knowing the name is one of the few things scientists know about this fungus and what in it affects certain frogs. This fungus lineage was found in many areas of the globe including Asia where it is most common. When looking for this disease they found many others that cause illness. Policies have been made to stop the spread of animals over international borders hoping to stop the spread.

    Personal Reaction:

    This article was very interesting to me. I didn’t know that fungus could be deadly enough to kill frogs. I also didn’t know that the fungus could be transferred from across the ocean on a frog and then planted in a new area. When I was reading this article it didn’t occur to me that different types of frogs wouldn’t be affected by the fungus like the American Bullfrog.

  3. Lincoln Ramey says:

    Title: Dishing the dirt on an early man cave
    Author(s): Flinders University
    Published by:Flinders University
    Date: September 26, 2019

    Article Summary:

    Australian and Russian scientist studied the ancient caves of siberia finding many traces that Large carnivores and at least three early nomadic human groups lived in these caves.The scientists used microscopes to study the broken down DNA in cave floor to help determine what species were living in the caves.By matching the DNA they found with previous studies they matched it with Denisovians and Neanderthals. Scientists have found fossilised animal droppings and microscopic traces in the dirt of these groups living in the caves. They also found charcoal from ancient fires and bone fragments around the caves. This studied complimented other work done in the past when the found bone remains of a previously unknown human type the Denisovans. Scientist also found the remains of stone tools by using previous information of sediment blocks and ancient DNA. When scientists made a second sweep the found bone remains of a teenage girl born by a Neanderthal mother and Denisovan father more than 90,000 years ago. The Homo Sapiens took over this area of land 50 to 40,000 years ago replacing Denisovians and Neanderthals. This site was chosen to do more research when they had found fossils of an unknown human group about a decade ago now known as the Denisovians.

    Personal Reaction:

    I thought this article was very interesting.I’ve always liked learning about early humans and how they lived so it was neat learning about them sharing caves with large animals such as bears cave hyenas and wolves. I also learned that scientists are able to distinguish the different types of people just by studying a fossilised cell.

  4. Lincoln Ramey says:

    Title: People eat more when dining with friends and family
    Author(s): University of Birmingham
    Published by: University of Birmingham
    Date: October 4, 2019

    Article Summary:

    A team of Australian and British researchers worked with experts at the University of Birmingham who found that in (Previous studies found that those eating with family or friends ate up to 48% more food than solo diners and women with obesity eating socially consumed up to 29% more than when eating alone.) These scientists believe that these habits go back to our ancient ancestors when hunters would share food and eat with others to gain more praise and relations. But when people are eating with strangers they choose smaller portions of food they believe due to social facilitation. Now that humans don’t have to hunt and gather food those instincts are being lost (Evolutionary Mismatch). This is causing us not to be as cautious on what our dietary intake. Scientists have observed this same thing happen in chickens, rats, gerbils and other species, when the species are brought into captivity and are given food everyday and are not forced to hunt and gather it because they know when food will come. This has created a mindset that people can eat as much as they need and share when they want to. A solution to this problem is for people to eat the least amount but still get the nutrients they need.

    Personal Reaction:

    This article surprised me in many ways. I thought people would eat more when they were alone because no one is around to watch you unlike when you are with friends people can pay attention to how much you are eating. I was also surprised that when you don’t have to hunt for food and you just know where to get it, you start to lose hunting and gathering instincts that are passed down from ancient ancestors causing people to not watch their dietary intake and start to not eat as healthy. I was also surprised that ancient ancestors would share the food they gathered with each other for praise and trust gain.

  5. Lincoln Ramey says:

    Title: Anesthetizing fish may affect research outcomes
    Author(s): California Polytechnic State University
    Published by: California Polytechnic State University
    Date: October 5, 2019

    Article Summary:

    Scientists have found that fish use colorful patterns on their scales in many ways such as mating techniques or to show rivals to get away. They learned that certain ways fish design their scales is a certain mood they are in. When scientists tried to use anesthetics on fish to study them closer it sometimes caused discoloration or changed what the scientists were trying to study. Sometimes photography would discolorize certain areas of the fish. They believe the color change is caused by “rapid physiological color change” either making some areas light or dark when melanosomes disperse(dark) or aggregate(light). Other scientists suggest using a controlled lighted area in a small water box where a clear picture of the fish is available instead of immobilizing the fish in order to study it.
    Personal Reaction:
    I thought this article was very interesting. How if a flash from a photo could alter colors or using anesthetics would make some of the areas the scientists are trying to study change to a light or dark color. This article surprised me on how different organisms react differently to medicine or fluorescent lights. I also didn’t know you could give a fish anesthetics without killing it. I thought it was cool how a fish could use certain colors to let other fish know how it was feeling based on a slight change in scale color change.

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