How Agricultural Land Use Has Caused By Anthropogenic Stressors, Such As Agriculture And Invasive Biota

The macroinvertebrates graph (figure 2) represents the diversity of species inhabiting the Baldwin Swamp. In 2009 the Baldwin swamp was flourishing with a large diversity of species. A total of 33 macroinvertebrates, 8 species were recorded. At this time the baldwin swamp was healthy, abundant in life and the ecosystem and food webs were unaffected by the floods. Whereas 3 weeks after the floods swept through there were little to no range of species of macroinvertebrates. There were a recorded amount of 2 Damselfly Nymph and 1 waterboat man. A theory to why these two

The cultivation of rice has had an enormous impact on the natural biome. Rice has affected the natural biome that it is grown in, in a devastating way. It has caused the natural biomes to deteriorate and caused the natural way of life to collapse leaving no place for the native animals and plants. But what would happen if the cultivation of rice stopped and the natural biomes returned to their former glory? What would happen to all those people depending on rice for the next meal? Those who depend on rice to pay for and keep their families alive? This report looks at the where, effects, who and how of rice cultivation.

Lampert, W., & Sommer, U. (2010). Limnoecology: [the ecology of lakes and streams]. Oxford [u.a.: Oxford University

The bar chart was used to compare the number of species in each transect. In transect A, there were 5 different species. The species in this area were mostly grass, forbs, moss, bugs and beetles. Bugs and beetles made up a small population of this transect. In transect B, there were also 5 species. The species were mostly grass, shrubs, forbs, moss and bugs. In this transect, shrubs were found which makes transect B more diversed than A. In Transect C, 8 species were located in this area. The species included shrubs, grass, fobs, evergreen, trees, dirt, bugs and spiders. New species such as evergreen, trees, dirt and spiders were located in this location. Therefore the test that diversity happens through ecological succession was

Through our research we aimed to determine if there were any differences in water quality of both the north and south forks of Strawberry Creek. As time progresses and the environment changes it is important to keep track of how certain species are being impacted by these features, and how they cope with change. We hypothesized that due to the lack of pollution, the south fork will promote a greater diversity of macroinvertebrates. This was due to the fact that there was less runoff and trash that could be introduced to the water in the south fork, than there was in the north fork. We gathered data by analyzing the different organisms living in both forks. We collected a total of fifty vials composed of five organisms from each fork, and inspected them under microscopic view. After gathering data and identifying the different kinds of organisms living in the different forks we assessed whether the organisms from the samples could live in high or low resolution water. We also took a t-test to assess the probability of these differences being due to relevant factors or by chance. Our major findings suggest that organisms in the south fork showed a higher demand to living in cleaner water indicating that our hypothesis was correct.

The presence of a certain velocity of water within a river affect the biota within it as it carriers or supports them. In rivers especially discharges vary seasonally, which imposes changes within a biological community. 1 Water velocity can affect the amount of

Common trout and Colorado River cutthroat trout (O. clarkii stomias) are MIS representing aquatic habitats on the GMUG. A variety of land management activities can affect lake and stream habitats, including traditional forestry practices, road construction and maintenance, fire and fuels management, and water development. The presence of MIS species in a watershed is not an obstacle to active forest management. On the contrary, MIS species are used by Forest personnel to gauge the response of the entire forest ecosystem to land management projects we implement. In particular, common trout were selected to assess effects of

Influence on ecosystems range from human causes like the bulldozing of a forest to natural causes like a fire or a flood.  In recent times, the introduction and spread of invasive species has transformed native communities rapidly and, in some cases, created irreversible damages.  In the Earth’s history, changes have often occurred in the ecosystems.  For example, glaciers and the retreat of glaciers cause wide-spread changes.  However, although change is a constant in ecosystems, animals and habitats often cannot adapt to the rapid alterations of non-natural stresses.  Harm to the environment from the introduction of invasive species occurs through changes in the habitat and declines in the native species.  Invasive species

The Great Lakes Basin has the largest surface freshwater system in the world. The rapid growth in human population in the basin region increases the challenges of the ecosystem with the increase of invasive species, pollution and water extraction. As cities in the lakes basin grow larger the structure of the ecosystem is changing the nutrient and food chain through the increase of human activities.

Through the city of Waterloo flows a stream named Laurel Creek that originates from well north of the city, and as it flows into Silver Lake, it provides a home for many organisms both on land and in the water. This stream has been heavily influenced by human construction, and has a number of reservoirs along its path. As the water moves downstream towards more populated areas, it becomes a sink for waste coming from many sources along the way. To monitor the health of Laurel Creek, indicator species such as benthic invertebrates that reside in the water are collected to determine the current status of the stream. The purpose of this study is to determine the best location to collect samples of invertebrates in relationship to the stream morphology of Laurel Creek. The results from this study could then be used on other locations suffering the same problem in Waterloo. These areas can then be observed to determine if a solution can be found to decrease pollution, therefore decreasing the

Living in moving water, inhabitants of streams and rivers have a major problem with remaining in place and not being swept downstream. They have evolved unique adaptations for dealing with life in the current. The aquatic ecosystem deals with freshwater vs saltwater. A lake is inland depression filled with standing water. Zones are dictated by physical characteristics and control diversity of organism present such on plants based on how much water they tolerate and light levels.(Chapter 24-26 PP) Animals due to oxygen and food webs, Littoral, limnetic zones full of living organism-fish, plankton, periphyton, vegetation, and invertebrates. River and streams are all flowing water originates in a higher elevation from an underwater spring/seepage

In stream based ecosystems, there is a rather delicate balance between the life found and the relative levels of particular substances in said stream. We use Bioindicators to give us an idea of the health of a particular ecosystem, which are in turn heavily influenced by the contents of the environment. Keeping this in mind our group set out to investigate two streams that are in two completely different areas. This was organized in attempt to get samples from two streams that would have very distinct contents, serving as a control for our overall hypothesis.

The biodiversity effects of non-native invasive species have been described as “immense, insidious and usually irreversible” (Veitch and Clout, 2002). There is significant evidence proving that invasive species can cause severe economic, environmental and ecological damage (Mack et al., 2000). A lot of time and research has been devoted to dividing the world into regions with distinctive habitats and species. Numerous pathways, mostly anthropogenic, are breaking down these realms and facilitating the ecological and biological invasion of non-native species.

Invasive species are organisms that are not native to an ecosystem and cause harm to it. These organisms are capable of bringing about a great deal of damage to the ecosystems they are foreign to. This can range from disrupting the growth of the environment it has taken over to completely decimating other species. The introduction of invasive species to new environments often involves humans. The way that invasive species are introduced to a new environment varies greatly. Invasive species may be introduced by something as simple as humans accidentally tracking species into a new environment from the bottom of their shoes, or something bigger like destroying an ecosystem to clear the land, forcing the species that lived there to flee to a new ecosystem that can be disrupted by the presence of a new species.

The patterns of biological diversity in rivers and streams among taxa vary on a spatial and temporal scale (Ligeiro et al. 2010; McGarvey and Terra 2015). Variations in stream ecology can be contributed to water quality, habitat, and history of disturbance (Lingeiro et al. 2010). Creeks and streams feed into rivers and other larger bodies of water, which provide food, water, and other commercial and recreational services as well as a home to an array of plants and animals which rely on clean water. The health of these smaller bodies of water can act as indicators for the health of the larger watershed.