When they become overpopulated, the whole eco-system can be drastically affected. Native food sources can be depleted very quickly which can result in extinction. For example, the loss of cougars and wolves in much of the U.S has led to many species becoming over populated. Without the whitetail deer being hunted, there would be major crop damage and many more car versus deer accidents. Overpopulation often leads to disease and malnutrition.
However, [that is not the case today.] [U]nusually hot, dry summers and mild winters in central British Columbia during the last few years, along with forests filled with mature lodge pole pine, have lead to an epidemic”(Natural Resources Canada). Although, before you can really understand how serious of an issue this epidemic is, you must first know how something as seemingly insignificant as a pine beetle, can cause so much damage, and what the three most destructive effects of this beetle infestation are. The most devastating effects from the pine beetle infestation include; the destruction it has caused throughout BC already, the devastating Co2 impact it has on Canada, and the downward spiral it has put on the forestry economy. In order to better understand the effects that the mountain pine beetle has on BC, it is first important to know a bit about the beetles and how the attack begins to how it ends on each tree they infest.
Land species- species adapted to arctic climate at risk. Marine species- species dependent on sea ice, including polar bears, walruses etc. will decline. Carbon cycle changes- replacement of arctic vegetation with more forests will lead to higher productivity and increased carbon dioxide uptake, but methane emissions from warming wetlands and thawing permafrost could counterbalance this positive impact. 4.
And changing patterns in bear behavior are bringing the animals closer to populated areas than ever before. A New York Times article described how climate change has forced grizzlies to forage more widely because of the decline of whitebark pines, which produce pine nuts that the bears depend on in their diet. Add it all up and it’s definitely a good idea to familiarize yourself with bear safety tips before heading out on a hike. There’s no need to be overly fearful. Just prepared.
At the same time, supplies water to Kiev's 2.4 million residents. This caused a major problem to the people as now; their drinking water is contaminated with radioactive materials. Other than that, the radioactivity in the seas, lakes and rivers became a threat to aquatic life. Thankfully, the groundwater was slightly affected because the radioactive material fortunately decayed before it could reach the groundwater supplies. Four kilometers of pine trees turned reddish-brown after the accident.
Although, a lot of the forests are being cut down by timber companies. This has been the main reason for the owl’s endangerment. The United States government declared the Northern Spotted Owl endangered in the year of 1990. This made it illegal to log in forests inhabited by the Northern Spotted Owl or thought to be inhabited. That created a debate between loggers and the United States government.
Introduction: The reasons for this study it to show the effect of acid rain on plants more specifically sunflower, radish, and clovers. The hypothesis is that the plant would ether die or be severely damaged due to constant exposure of the acid rain. With that in mind there is already historical evidence showing how exposure to Acid rain has caused damage in forests. One example is the Great Smoky Mountains national parks were acid rain has damaged and or kill an entire section of the forest. The reason to do this experiment is to show awareness towards this growing environments problem that is killing many important environments and ecosystems.
Catherine Medrano Research Question #2 14 March 2013 Future Plant and Animal Diversity in Tropical Rainforests Within the last 50 years deforestation has taken 17% of the Amazon’s land area and imposes a major impact on plant and animal species (WorldWildLife.Org/threats/deforestation). Frustrations over the biodiversity in the tropics have created a sense of turmoil in which scientists are concerned with political judgment. Political officials have protested the idea of the future loss of biodiversity to be inadequate and extremely low. Evidence has founded that with the increased deforestation and population rates the human race is at terrible risk of not only loss of resources but of habitat loss due to extinction rates (Bradshaw et al., 2009). These findings can conclude that with increased exposure to deforestation plants and animals are limited in habitat reformation and thus cause problematic extinction rates for the future.
So CO2 emissions must be reduced. But we used to have periods of higher average temperatures. Besides, these emissions don’t stimulate crop growth. What is more, it is reported that the Arctic is warming 2 or 3 times faster than other ecosystems. The ice in Greenland is disappearing.
Houle (2007) found that trees flowered 2-6 days earlier in 2000 than they did in 1900, indicating that global warming is impacting the phenology of plants. This can affect plants by altering their growing seasons, which may have unknown impacts on the plants. Increased temperatures linked to global warming have also been associated with decreased frost resistance, which can lead to an increased amount of damage to trees’ buds (Bannister et al. 2005). Studying these factors is important because it will allow us to understand and predict the changes that will occur due to the evolving climate and