IInvasive spices
The cane toad is a physically large; in fact it’s the largest species in its family. Adult toads weigh an average of four pounds. The cane toad’s thick skin can secrete a milky like position that’s harmful and can induces harsh burning and irritation. Te cane toad is originally native to central America and Hawaii, but it was introduced to Australia in 1935, a species brought across sea to help stop the insects that were threatening sugar cane farms.
The cane toad’s poisonous skin has caused major intrudes in the ecosystems and has killed several species of snake, goannas, and quolls. This unnatural threat to these spices has really hurt Australia’s ecosystems. Several things have been done to try to prevent the Cane Toad from doing any further harm. A method being researched is the introduction of alarm chemicals being placed into cane toad inhabited ponds. This would inhibit the toads from avoiding predators because the alarm pheromone is only released when a cane toad tadpole is attacked to other tadpoles of that spices can flee, if substance is introduced in a large scale than this pheromone, and protection is essentially useless making them more vulnerable. The government is currently encouraging the public capture of cane toads so they can be frozen or gassed to death so they can be turned in to fertilizer. Some Australians have taken to using the toads as sports; this includes using them as balls, or racing them.
Buckthorn was first brought to America’s northwestern hemisphere from Europe in the mid-1800s as hedging plants. It was found to be extremely invasive in natural areas harming many other plants around it. It’s no longer being sold and wildlife conservationists are fighting its ever-increasing spread. Buckthorn is very harmful to the surrounding plants because it deprives them of light and nutrients. Threatens forests, wetlands, prairies, and other natural habitats because it serves as a host to other pest, and aids in erosion due to its thick shading of other plants and its impenetrable layer of vegetation. It also lacks natural susceptibility from insects and diseases that would usually curb the growth of natural spices. Ways of prevention include herbicide and simply cutting buckthorn out of natural preserves like Rollins Savannah.
Invasive spices are dangerous they threaten our ecosystems that have already spent thousands of years developing to become balanced. Weather it’s the Cane toad or Buckthorn when an introductory animal is brought into an ecosystem it threatens the life of many spices perhaps causing them to become endangered. This should be a huge problem for all Americans because we must love and take care of this earth for her to ever do the same for us.
http://www.dnr.state.mn.us/invasives/terrestrialplants/woody/buckthorn/index.html
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