Elaeagnus Angustifolia and Tamarix Ramossisima
Introduction
The topic that is going to be discussed is the Russian olive (Elaeagnus angustifolia) and the Salt cedar (Tamarix ramossisima). Both of these species are noxious weeds that are also non-native plants that were brought over from Europe. Both of these subjects history, where they originated, and where they occupy will be covered. Also both of their economic advantages as well as their disadvantages will also be discussed.
Salt Cedar
The salt cedar is believed to have originated from southern Europe, the Mediterranean region, the Middle East, and Africa. Out of the 54 species known worldwide eight of them preside and have been introduced into the U.S... A brief description of this species is that it can grow up to 5 to 20 feet tall. The reason for the great distance in size is because they are divided into two groups, which are similar to the evergreen tree or a deciduous shrubby type species. It was mainly used as an ornamental landscaping plant on the sides of roads. The reason why this tree was chosen is because of its ability to survive in a variety of areas and because it is very adaptable and tolerant. However, because of some of these traits it also ended up becoming a hassle. Other traits that make it a lot of trouble is it is able to produce rapidly from hundreds to thousands of seeds being dispersed. These seeds are numerous but what makes the matter worse is that after being exposed to moisture it only takes the seedling 24 hours to germinate making it able to reproduce at an astounding rate. Which means more plants competing in an ecosystem that has been changed to the salt cedar conditions. This is done by the salt cedar through its glands that release salts in its leaves and younger stems that when they fall to the ground it makes the soil no to the standards of many of the other species of plants in the area reducing diversity in the area. They are also less tolerable to fire, which causes them to burn easier and allows the fire to spread in a wider area. However, the advantage they have over the other plants after this occurs is that they are able to recover faster than other species because they have become better adapted to fires. The ones that grow near streams and other water sources narrow channels causing an increase in the water flow, which can eventually lead to flooding.
It is so sad to see the horror of forest fires and how they corrupt our beautiful land. So much damage comes out of what started so small. At least 603 square miles of land were burned in the early stages of the Arizona fire only a couple of years ago (BBC 2). In a Colorado fire 2.3 million acres had been burned (BBC 3). That land could have been saved if the use of prescribed burns had been in the area.
happens because the roots emit pigments of red color into the soil which then runs into the water. Even though the amount of red pigment released is very little, due to the large amount of cedar trees in the Pine forests, the water is affected. The main crops of the Pine Barrens include blueberries and cranberries. There are also many rare plants that can be found in the Pinelands. One of these is the pitcher plant which is related to the Venus Fly Trap. Plants such as these have an influence on how nitrogen is depleted in the Pine Barrens and also on how the Pine “Barrens” got there name, nothing like vegetables grow there. The pitcher plant helps prevent pollution from entering the lakes as well as help in preventing flooding. The lakes in the Pine forest are home to the tree frog. These forests are also home to many other animals like cranes, water snakes, turtles, salamanders, and other frogs.
Australia is a land of rather extreme weather conditions and widely diverse climates that force the vegetation living there to adapt in many interesting ways. Australia is the driest continent, and biomes such as grasslands and savannas are prime sources of widespread catastrophic fires. The plants that grow in the vast arid and semi-arid regions of Australia are prone to fires simply because of the desert climates that they grow in. High temperatures combined with low fuel moisture contents, little humidity and drying winds that sweep across the landscape encourage many of the plants living in these areas to burst into flames at fairly frequent intervals. Serotinous cones, protective bark, intricate underground recovery systems, unique seed distributions and even the necessity of fire for reproduction are just some of the amazing ways that the major plant families which grow in these fire-prone areas have learned to adapt to their environments.
Another interesting characteristic of chaparral plants is their ability to respond to fire and other natural disasters. Due to the dry and arid nature of the area, the sage and grasslands can easily cause brush fires. When the area is burned, the shrubs and plant life d...
The animal I chose to make a habitat for is the cotton-top tamarin. From my knowledge, I was able to make judicious choices that would suit a cotton-top tamarin’s likes and dislikes. Zoo exhibits already are equipped with supplies tamarins need. But the picture I drew is how I think a habitat for a cotton-top tamarin should be in a zoo exhibit. Cotton-top tamarin is a SSP (Species Survival Plan) animal who’s critically endangered animal due to deforestation and wildlife trafficking. These animals are supposedly ideal captive animals, but they really aren’t and they shouldn’t be.
I celebrate the use of black grama (a decreaser) and prickly pear (an increaser) as range condition indicators and applaud the committee’s use of flora in addition to fauna. However, distribution of black grama is limited throughout the sub-geography selected. If this geography included the short-grass steppe the distribution of black grama would suggest it as a much better landscape representative.
At the lowland Atlantic Forest of the state of Rio de Janeiro, Brazil, lives a charismatic and tree-dwelling monkey known as the Golden Lion Tamarin, Leontopithecus rosalia. The Golden Lion Tamarin is a particular species of Lion Tamarins and were given this name due to their brightly coloured orange or red fur covering their entire bodies (Tzoo). A beautiful golden hair frames its dark and hairless face (WAZA). Golden Lion Tamarins can be distinguished from other species of primates by having two molar teeth on either side of each jaw as opposed to three and by their modified claws, rather than nails, on all digits except their big toe (IUCN). With a body and head length of about 200 to 336 mm, a tail length of 315 to 400 mm, and weighing approximately 361 to 794 grams, the Golden Lion Tamarin is considered one of the
This report will assess the impact of human activity on local plant growth in nature reserves.
There was symbolism in the replacement of the tree. A cedar tree is stronger than a sycamore tree. The grain of a sycamore tree is coarse, knotty, spongy and not very strong and rarely grows to more than fifty feet. The cedar tree grows straight and is majestic and towering, and can grow to well over one hundred feet. Its wood is smooth, durable and suitable for construction. The symbolism in the replacement of the tree could not be missed as the planners of the development considered it to be a suitable memorial.
The arrival of the unknown food supplies to west like cattle and sheep made Native American, who were used to changing locations based on their needs, start settling down more but what they didn’t realize was the effect of these new food resources on their original vegetation sources, which we can still see to this day. The different natural environment of food chains of Europe that were brought by them for the purpose of the food supplies started effecting the original resources of the New World by making in it impossible for them to grow back, since they consumed them all. Today, because of this change, there is barely an original resource left from the New
Sandberg, D.V., R.D. Ottmar, J.L. Peterson, and J. Core. 2002. Wildland Fire on Ecosystems: Effects of Fire on Soil and Water. Published by The United States Department of Agriculture, Forest Service. Retreived on line July 7, 2005
Patch burning has a positive and negative affect on plants, medium sized animals, birds and preventing wildfires. Patch burning is helping plants by giving them more space and values the growth. The production of dryer plants can cause more fires then there already is. The dryer the area is, the more possible chance a fire could happen in that area.
In the forest some species strive and overpopulate likewise some struggle and become endangered if not extinct. For those overpopulating species a fire reduces their population while bringing animal diversity or variety of species to the environment. Also with less of the overpopulating
The common species include daisy and sunflowers for ornamental; lettuce for crop; ragweed and thistles for weeds. Most plants of Asteraceae are herbaceous plants, but climbers, trees and shrubs do exits. most of the Asteraceae members produce taproots, but some of them also have fibrous root systems. The leaves can be alternated, opposite or whorled. The common plant characteristics of Asteraceae include having “composite” flower heads composed of many small flowers, called florets, that are surrounded by bracts. They also contain white sap in their leaves and stems. The members of Asteraceae can produce a type of fruit named achene. Achenes are dry and single-seeded fruits. They do not open at maturity. For example, the seeds of the sunflower are achenes.
The Forest fire is occurring very frequently nowadays, reasons for it are a heavy increase in global warming and an increase in temperature.