37 Matching Annotations
  1. Apr 2021
    1. Lo

      This figure is packed with information but it is a lot to figure out at once. It seems like this would have been good to have in color or to split up a few pieces of information.

    1. n D.

      I also looked at leaky dioecy- is this when they can sometimes produce flowers of the opposite sex? I took it as almost a grey area between dioecy and monoecy?

    2. ution

      It seems bizarre that there are some states that don't have any specimens, I wonder if this is due to the fact that there just haven't been samples from that specific place?

    1. he data reveal a link between current forest compositional differences and density of ancient Maya occupation around El Pilar.

      This was surprising to me. When I first started to read this paper, I was more so leaning towards that they wouldn't have similar forest compositions.

    2. major problem of historical ecological research is the lack of information on the environment before human settlement.

      This is one of the most interesting parts of the paper in my opinion. A lot of science is based on observations and facts, but when looking at historical research, sometimes that can be impossible. In order to try to get answers, you have to have a lot of knowledge about many different parts of the environment you're studying and how is has evolved.

    1. TAXONOMIC TREATMENT

      Having the actual photos in the paper really gives this life and makes it really interesting to think about. I feel like this is something that should be included in more papers.

    2. ANOVA and Tukey’s HSD test of soil properties and climatic varia-bles indicate that temperature and precipitation exhibit statistically significant differences in means for some, but not all, pairs of taxa

      This was surprising to me. I was predicting that there would be more of a significant difference seen in most or all taxa, not just a few.

    1. ree-d

      This is a complicated figure to look at. Each are different species, and the dot size represents the number of families that have that characteristic? What are the axes?

    1. Morphine is the dominant alkaloid and thestrongest naturally occurring analgesic.

      This is interesting, I didn't know that morphine was a natural analgesic, I just assumed it wasn't- definitely shows that natural medicines aren't talked about as much.

  2. Mar 2021
    1. Metabolomics has served as the principal tool for the iden-tification of key bioactive ingredients to explain the specificmedicinal properties of plants.

      Thinking about taking the specific medicinal parts of plants and compiling them into a drug- would this be what is looked at to narrow down the needed ingredients?

    2. The development of metabolic models for medicinalplants to predict

      This reminds me a lot of some of the papers I focused on for my bio seminar presentation. Creating the models is a really interesting way to look at possible future models, a setback is that it may not include all possible changing factors.

    3. promote the development of natural medicines

      I wonder just how successful the production of natural medicines can/will be. There is such a large pharmacological industry, and I can only imagine what would happen if those drugs were to be replaced rapidly by natural medicines. In turn, I think it would be amazing to get more natural medicines that work, in my head I have this idea that there would be fewer side effects, and if that was the case then that would be reason enough to work towards a more natural medicine path.

    1. cophylogenetic signal implies two observations: thatthe phylogenies of interacting clades are congruent instructure and that extant interactions occur betweenevolutionarily coupled taxa

      Is this specifically two observations only of two clades that are congruent in structure? These are observations that apply to both?

    1. etal distin

      I'm sure exactly where to put this annotation but it was much easier to have the pictures of the flowers during the lecture. It was tricky to picture them all while reading through the paper.

    2. olved from the BC

      The fading borders is a little confusing at first- It's weird to see it very specific, then go to fading borders and then back to specific

    1. ycles

      This reminds me of the paper we discussed on Wednesday. It really amazes me that species are able to survive through such extreme conditions- in this case the interglacial cycles!

  3. Apr 2020
    1. This analysis showed that the outbreak was caused by two distinct lineages of Mycobacterium tuberculosis that existed in the community before the outbreak.

      Have any of the pandemics in the past ever had just one strand present? It was found fairly quickly that there were two strands of Covid-19, I'm curious if this always happens.

    2. of descendents within the genus Homo.

      I also thought this was a really interesting topic in class, it's amazing to think about the changes that would happen if this wasn't as much of a factor.

    1. “We see a different configuration of a gene associated with starch digestion in the small intestine—MGAM—in the agricultural ancient Andean genome samples, but not in hunter-gatherers down the coast,”

      This is something I've never thought of as being helpful in tracking ancestry. It makes me curious as to what different individual's digestion abilities are like now compared to our ancestors.

    2. This discovery now presents a very intriguing mystery, because this group could conceivably be the first humans to reach South America.

      Just like how they were able to travel through North America without leaving a genetic trace, how can we know if they really were the first to reach South America? There could have been others that traveled through South America and similarly didn't leave a genetic trail.

    3. “That’s something we’ve suspected due to the archaeological findings, but it’s fascinating to have it confirmed by the genetics,”

      It's always so interesting when older theories are proposed and then looked at many years later and proven to be correct with modern knowledge.

    4. what happened to one group of migrants who decided to make the high-altitude Andes their home—a decision that sent them down a unique evolutionary path.

      This highlights the significance that one decision can make. One change can cause a chain reaction that results in many evolutionary changes.

    1. These findings indicatethat bed bug infestations are associated withbottlenecks resulting from strong founder effects.

      Something that isn't thought of-founder effects cause bottlenecks.

  4. Mar 2020
    1. Integration of models for the evolution of female choice with theory related to the intensity of sexual selection and mating-system evolution.

      Throughout a female's life, do her preferences change? If she already has offspring from a different male, would it be possible for her to look for a male that was a better in different ways such as territory defense rather than just reproductive success?

    2. However, the second explanation, a skewed sex ratio, does fit well with our current view of behavioral ecology

      Something that Darwin predicted that has shown to be true today. A lot of times, earlier scientists are off with their theories but it's impressive to see that this has stood to be true over such a long time.

    3. and in the sexually monomorphic leafy sea dragons, Phycodurus eques, both sexes are characterized by extremely elaborate leafy appendages

      It's often seen that only the males has the ornamental traits that are appealing to the female.

    4. Thus, females may exhibit a preference simply because they are predisposed to do so, and the preference may have evolved as a consequence of evolutionary mechanisms, such as natural selection or drift, unrelated to sexual selection.

      For natural selection or drift to be the deciding factor in mate choice, it would have to be pretty significant drift. Even within the natural selection there still much be a natural hierarchy of attractiveness for females to choose from.

    5. To understand this model, we must appreciate that females with a preference for a large ornament, for example, will have offspring with both the genes for the large ornament from the father and genes for the preference for large ornaments from the mother

      This isn't something I specifically thought about before but a really important point.

    6. In some species, the males appear to provide nothing to the females but sperm, yet they have elaborate ornaments for which females show preferences

      How important are the factors of protection, nuptial gifts and territory defense talked about in the previous paragraph, compared to reproductive success?

    7. it is difficult to believe that females have no preference whatsoever, and even a weak preference would be sufficient for sexual selection to operate

      Most scenarios in the wild prove this point. Is it just those matings that are most often seen and that's why we automatically assume this?

    8. Darwin provided partial answers to these questions, and the progress that has been made on both of these topics since his time should be seen as one of the great triumphs of modern evolutionary biology.

      This is really interesting to think about, the groundwork that he laid has been and is still really helping lead biologists today.

  5. Feb 2020
    1. HYBRIDS.

      This is the beginning of how we are distinguishing species vs breeds. Also learning what context to use genetic terms such as variable expressivity, incomplete penetrance etc. Some species are just too different to create a fertile, viable offspring.

    2. The difference in their results may, I think, be in part accounted for by Herbert's great horticultural skill, and by his having hot-houses at his command

      This is the main difference between the experiments completed by Kolreuter and Gartner versus Herbert. Herbert took into account more factors than Kolreuter and Gartner such as inbreeding.

  6. Jan 2020
    1. solutions to the many resulting problems may well require understanding evolutionary interactions among species and their mutual dependencies

      Understanding evolutionary interactions absolutely is a critical part in beginning to work towards a solution. Having as much information as possible before jumping head first into trying to solve such a big issue is really important and is also the more efficient way of attacking an issue as large scale as climate change.