18 Matching Annotations
  1. May 2021
    1. Biodiversity has been present for much of thehistory of the Earth, but the levels have changeddramatically and have proven challenging to docu-ment reliabl

      I find this statement pretty interesting. Obviously we will never have a full picture of biodiversity levels probably ever at a single time period as there still much to explore. We have only explored 10 percent of the ocean for example. One thing I did not really remember being mentioned is the role that fossils can have in seeing the biodiversity of the past.

  2. Apr 2021
    1. Conservation biology is also a social science,touching on everything from anthropology, psy-chology, sociology, environmental policy, geogra-phy, political science, and resource management(Chapter 14).

      I think it is pretty awesome to think about all the collaboration that takes place in the conservation world, people from all walks of life take part. Without the knowledge and skill set of one of these fields conservation biology would not be complete.

    1. he World Bank is well known as adevelopment agency providing bothconcessionary credits and commercial‐rateloans to governments to reduce poverty, but isless well known as a leader in biodiversityconservation

      if you want to learn more about their current projects, their website is very insightful. They are still an active leader in biodiversity conservation to this day.

      https://www.worldbank.org/en/topic/biodiversity#1

    1. oh and Sodhi’s study has two key conserva-tion lessons:first, in highly urbanized tropicallandscapes the least human-disturbed land usesare likely also most valuable for preserving thenative biodiversity, and should therefore begiven the highest conservation priority; second,with a good understanding of the biology of or-ganisms, it is possible to enhance the conserva-tion value of manmade habitats within human-modified landscapes. Although urban landscapesrepresent the worst case scenario in ecosystemmanagement we are increasingly faced with thetask of conserving species in such“unnatural”environments. Therefore, it is crucial that moreresearch be focused on developing viable strate-gies for the effective conservation of biodiversityin urban landscapes.

      This study is a pretty interesting one. Study like these promote more urban planning when it comes to green areas.

    1. Maryland is at the southeastern periph-ery of the owl’s range and the bird is quite rarethere. Conservationists continue to debate thewisdom of expending scarce resources on theprotection of peripheral or isolated populationsof otherwise common species

      I think this very interesting. I kind of agree that we should focus more on where the main population is but the loss of genetic diversity, especially to an endangered species, but in this situation the species is not endangered. The only reason maryland is considering it endangered is because of human made borders.

    2. Among Rare’sfirst71 campaigns, 59% chose a bird, 16% chose amammal, and 11% chose a reptile to be theirflagships species, but campaigns have alsousedfish, insects, crustaceans, amphibians,and plants.

      Why over half of the flagship species birds? Meanwhile all the other ones are such a small percentage that they are just briefly mentioned.

  3. Mar 2021
    1. Map of 595 sites of imminent species extinction

      I find this figure pretty interesting. You can see many of sites are are on islands or coast lines. Very few sites inland.

    2. Maybe thefinal frontier of global priority-setting is the incorporation of cost of conservation.

      always comes down to the economics. I was interested in conservations role in different global agreements and found this.

      "Article 5 of the Paris Climate Agreement calls on governments to take action to conserve and enhance forests. The agreement explicitly recognizes “REDD+” as part of the final package (REDD means Reducing Emissions from Deforestation and Forest Degradation, with the “+” referring to the role of forest conservation, sustainable management of forests and enhancement of forest carbon stocks). The REDD+ accords, which had been previously agreed among the Parties (see Warsaw below), are designed to incentivize developing countries to leave their forests standing. The inclusion of REDD+ in the Paris Agreement provides a powerful political and economic signal that forests are a part of the solution"

      We can come together as a global and agree to these standards but cannot "police" them into happening. governments do not want to spend the money into conservation especially when it is their main economic source

    3. Maps of the nine global biodiversity conservation priority templates

      I think a good thing to take note of from this diagram is how many of these templates include the amazon yet we are destroying it at such a fast rate. Sad to see.

      interesting related article that talks about how the amazon ecosystem could collapse within our lifetime

      https://www.ecowatch.com/amazon-rainforest-collapse-2649776959.html#:~:text=The%20study's%20models%20predict%20that,open%20savanna%2C%20Science%20Alert%20reported.

    1. as would be predicted by the increasedheat absorption capacity of dark open water ascompared to reflective ice

      In Climate, Risk and Adaptation we recently talked about albedo and the effect it is having on the climate. I think it is a pretty interesting and key concept to understand when it comes to climate change. https://energyeducation.ca/encyclopedia/Albedo#:~:text=Climate%20Change,-The%20Earth's%20climate&text=As%20the%20world%20warms%20the,and%20more%20to%20be%20absorbed.

    1. Habitat modification by introduced plants canlead to a meltdown process with expanded and/or accelerated impacts.

      Important key point. Kind of curious if there has ever been an invasive species that has lead to no impacts on the habitat. "can lead to" makes me think that there has been but you really never hear about them if they do exist

  4. Feb 2021
    1. National parks and dedicated conservation re-serves are of great value, but on their own aretoo few, too small, and not sufficiently represen-tative to conserve all species

      I was curious to see how much national parks conserve in area compared to the general US. Many articles have various answers but I found this statement interesting, "this area is 14% of the total land area of the US and a tenth of the world’s protected land area." That statistic count NP as well as state and local conservation areas.

      https://www.worldatlas.com/articles/what-percentage-of-the-area-of-the-united-states-is-protected-land.html

    2. When populations become small and isolated,they become vulnerable to a number of stochastic(or chance) processes that may pose little threat tolarger populations.

      This reminds me with what happened with the native wolves of isle royale national park in UP of Michigan. Due to such low numbers in population it lead to loss of genetic variation.

    3. A key issue for conservation is the relativeimportance of habitat loss versus habitat frag-mentation (Fahrig 2003). That is, what is the rela-tive importance ofhow muchhabitat remains inthe landscape versushow fragmentedit is?

      I think this an important thing to remember and think about.

    1. There is as yet no comprehensive history ofconservation that allows us to understand thecauses and context of conservation biology’semergence

      I find this statement to pretty exciting as it seems conservation is a pretty new field of science with lots to explore and learn about.