Ecology Assignment

Ecology Assignment Words: 710

Importance of invasive plant Lisped Cantata and its interaction with soil bacteria Lisped cantata, also known as silky bush clover, is an invasive species of prairie plant that has shown its dominance over its native cousin Lisped Virginia due to its aggressive behavior and harmful effects atop its superior ability to form nitrogen fixing nodules. It has been added to several noxious weed lists and is studied for its symbiotic relationship with various soil bacteria Key words: Invasive plants, Lisped cantata, Praseodymium, symbiosis, competition, control, silk bush clover By Alexander Make 7238991

BIO 2129 Ecology Assignment By Alexander-Make Department of Biology University of Ottawa Introduction: Native to Asia and eastern Australia, Lisped cantata, has been added to multiple noxious weed lists due to its severe effects on other vegetation indigenous to North America. Predominantly invasive in east and central United states, it has an extensive tap root growing deeper than 1 meter in length, and a tall branching, flowering stem that grows to a Max of 2 meters above the surface.

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It was introduced in the asses in order to rehabilitate drought areas and revivalist vegetation as it was capable of arriving harsh drought areas. Ultimately, it became a very serious threat to other vegetation, and has over shadowed it’s native cousin Lisped Virginia. Researchers from the University of Illinois are investigating how various soil bacteria interact with the highly aggressive Lisped cantata, and how they form the strong symbiotic bonds required to fix nitrogen with such efficiency.

Research was conducted by the University of Illinois by professors Lining Huh, Ryan R. Busby, Dick L. Gephardt, Anthony C. Handler and was supported by a grant from the U. S. Army Engineer Research and Development center. Symbiosis Lisped cantata is capable of outperforming the competition due to its symbiosis with various bacteria in the soil. This relationship allows it to effectively fix nitrogen in a way that its native competitors are incapable of doing.

The study shows that after testing an isolated pool of 50 bacteria, from the nodules in both invasive and native leaseholds, some were unusual and untraditional nodule forming bacteria. It was concluded that the two species of Lisped do not receive the same benefits from their relationships with their rational partners. Different strains of acrobatic partners resulted in Lisped cantata to grow significantly larger than its counterpart which did not improve whatsoever. Competition: Lisped cantata is far more dominant over its north and south American counterparts, such as Lisped Virginia for example.

With its ability to thrive in dry conditions, it outlasts other vegetation in the area while also being aliphatic, causing it to produce chemicals and substances to inhibit the growth of other plants. It is also far more efficient at fixing nitrogen than its native cousins. Also, as stated by Beaten et al. 011, invasive species exhibit far more aggressive behaviors which match the competitive ability hypothesis that states a lack of natural enemies allows invasive plants to thrive in an area where they can distribute their energy more effectively towards growing, and less towards defensive measures.

Facts Sheet Identification: Lisped Cantata kingdom: Plantar Phylum: Angiosperms Class: Opinions Order: Fables Family: Effaceable Genus: Lisped Species: cantata Habitat: The Lisped cantata, or “Chinese bush-clover”, is indigenous Asia and eastern Australia. Although, it is an invasive weed that can be found throughout the astern and central United States as well as parts of Canada, Brasilia, Mexico, and South Africa. It has a highly aggressive behavior with a woody taproot capable of growing well past mm in length and growing branching stems of up to two meters in height.

Due to its invasive nature, it causes the abundance and diversity of local wildlife and vegetation to decrease significantly. It exists in areas susceptible to drought as its deep roots allow it to survive the harsher conditions. Countermeasures: Possible ways to control the invasive weed would be the use of biological est. controls such as grazing animals such as goats and cows who are attracted by their large stems, or natural predators such as the Lisped Weber.

The Weber in specific, while unapproved for use, devours Leaseholds indiscriminately.

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