12 Matching Annotations
  1. Apr 2021
    1. once a species has been added to theofficial list of threatened and endangered species(making it a“listed species”), it is protected tovarying degrees on both publicly-owned and pri-vately-owned lands.

      The fact that we do so much to help protect and preserve these endangered species. Once it is on the list the government takes a lot of time and energy to keep the species safe as best as they can and keep them on the endangered list so they remain protected for a long time until there is a much much larger sum of these species roaming again.

    2. threats may change overtime,

      The threats will continuously change over time without any warning sometimes. different species and habitats change every year or couple years due to what is happening with the climate or population near it. They can change for the better or good and either way present new threats that probably were an after thought before.

  2. Mar 2021
    1. Certainly, the islandsbetween Asia and Australia have both many speciesand many species with small ranges.

      I am very fascinated by the range these birds can have and how they get them. Obviously it makes sense to me why and how they develop them, i just think it is cool. Something i never really think about when i think about birds is what kind of a range might they have, what kind of environment gives the birds that kind of range.

    2. There is a well-established relationship acrossmany geographical scales and groups of speciesthat links a species’range to its local abundance(Brown 1984)

      This is incredible i think. Very cool that based off where a species of bird lives, the flight range they've evolved with had to do with how far away there nearest food source is. I think they could go beyond their range however if they didn't find any food on the first go around.

    1. Indeed, humans can be truly describedas afire keystone species given our dependence onfire; there is no known culture that does not rou-tinely usefire.

      Humans would be nothing without fire we need it to survive. We have been creating fire for hundreds and thousands of years to keep warm. However sometimes these fires like today can get out of hand and torch hundreds of thousands of acres of perfect ecosystem because somebody made a mistake. There's a lot to think about with that, just to keep one person or family nice and warm accidentally sometimes we burn entire ecosystems. a lot of new technologies such as electric heaters have definitely turned down the level of danger that comes with heating the house, however we must remain mindful of what we're doing as a population.

    1. All of this bears on probably the most criticalenvironmental question of all time, namely atwhat point is climate change“dangerous”, i.e.,where should it be limited. For a long time

      I think climate change being dangerous is not a new thing. I believe that climate change is dangerous as soon as ecosystems start falling apart and even the smallest of organisms living in them start to die off. An ecosystem is full of millions and millions of organisms coming together in living as one and as soon as this is disrupted in even the smallest of ways I believe this could be very dangerous in a chain effect of disaster waiting to happen.

    2. On landthe two most important physical parameters fororganisms are temperature and precipitation.

      I believe that it is very important just like this says for animals and organisms to have the proper temperature and precipitation that they may need to live a long and good life. I believe it is very important to start putting in practice all of this new technology and trying to work towards even greater technology that will help to improve the way of life of these organisms and our ecosystem. eventually if not taken care of properly we could as humans start to lose out on our perfect ecosystem and die as well.

    1. The influence of physical processes and distur-bance regimes on fragments means that followinghabitat destruction and fragmentation, habitatmodification also occurs.

      If we continue to make poor decisions on over building around the world on ecosystems we will end up with nothing left and everything will eventually die off maybe even leaving us with no water or food. or atleast not enough food to contribute to the ever climbing population.

    1. In South America, morethan half of the biologically-richcerradosavannas,which formerly spanned over 2 million km2, havebeen converted into soyfields and cattle pasturesin recent decades, and rates of loss remain veryhigh (Klink and Machado 2005).

      It is vital that we learn to stop expanding our own creations and infrastructures where they are not absolutely needed to survive to maintain and keep the natural ecosystems from going under.

    1. PollinationInsects, birds, mammals

      this is extremely important to modern cultures and farming because without these pollinations and pollinating species a lot of the beautiful flowers and eco system would be rather dull and probably without the proper nutrition to survive leaving it to die out and never return.

    1. There is no strictly equivalent schemefor the pelagic open ocean, although one hasdivided the oceans into four primary units (Polar,Westerlies, Trades and Coastal boundary), whichare then subdivided, on the basis principallyof biogeochemical features, into a further 12biomes (Antarctic Polar, Antarctic WesterlyWinds, Atlantic Coastal, Atlantic Polar, AtlanticTrade Wind, Atlantic Westerly Winds, IndianOcean Coastal, Indian Ocean Trade Wind, PacificCoastal, Pacific Polar, Pacific Trade Wind, PacificWesterly Winds), and then into afiner 51 units

      It is very interesting to me how we could have actually divided up the oceans in such a way. So much unexplored life below the surface being one of the last frontiers on earht, and as humans we took something so vast and mysterious and as usual divided it up and took claim to different parts of it as if we knew what actually was going on deep deep below under human detection.

    1. New concepts from ecology and evolutionarybiology began tofilter into conservation and theresource management disciplines during the early20thcentury.

      I found it very intriguing that in the 20th century we were already focused on the new concepts of ecology and biology and focused on conservation. The fact that we were already starting to care so early meant it was evident that it was going to be important to the future.