Endangered languages: what is to be done‚ and why? The threat to linguistic resources is now recognized as a worldwide crisis. Language death is what happens when the last speaker of a particular language dies‚ or when a language community ceases to exist. It is an extinction that is happening on a massive scale and with astonishing speed. According to Krauss (1992a)‚ as many as half of the estimated 6‚000 languages spoken on earth are "moribund"; spoken only by adults who no longer teach them
Premium Language death Sociolinguistics
Many species of bees have recently been put on the endangered species list. They are vital to our food supply and help our crops grow. They help produce food‚ fiber‚ and shelter for us. Waves from cell phone towers or the rising heat could be the reason for the species decline in number. We can help to protects the bees by raising hives on our own‚ and by trying not to use harsh pesticides. Bees are what pollinate our crops. Without them the flowers could not be pollinated and would die. Without
Premium Insect Bumblebee Honey bee
Endangered Species: Bengal Tiger (Panthera tigris tigris) By Natalie Hegwein The common name for the species is Bengal Tiger and it belongs to the genus/species Panthera tigris tigris. The Bengal Tiger usually has a reddish brown coat with narrow black‚ gray‚ or brown strips going in a vertical direction accompanied by a cream or white underbelly. Although some have a mutation gene which causes the skin color to be white instead of the usual color. Since the tigers generally hunt at
Premium Tiger
There are many different types of invasive species around the world‚ that vary in all shapes and sizes and things. What is an invasive species.? An invasive species is a plant‚ fungus‚ or animal species that is not native to a specific location (an introduced species)‚ and which has a tendency to spread to a degree believed to cause damage to the environment‚ human economy or human health. The Burmese Python The Burmese Python is a large reptile (snake) that can grow up to 20 ft in length and
Premium Biodiversity Invasive species Genetic pollution
Invasive species pose a threat to the continued survival of the native plant life‚ at camp catalpa. The two most prevalent invasive species are the Bush Honeysuckle and the Roughleaf Dogwood. Several species have been negatively impacted by the continued presence of the invasive Bush Honeysuckle and Roughleaf Dogwood. The Bush Honeysuckle produces a toxin‚ which is released into the soil that inhibits the growth of other species. Bush Honeysuckle and Roughleaf Dogwood are shade tolerant species. There
Premium Invasive species Ecology Ecosystem
A keystone species is a species that has a disproportionate effect on its environment relative to its abundance. Such an organism plays a role in its ecosystem that is analogous to the role of a keystone in an arch. While the keystone feels the least pressure of any of the stones in an arch‚ the arch still collapses without it. Similarly‚ an ecosystem may experience a dramatic shift if a keystone species is removed‚ even though that species was a small part of the ecosystem by measures of biomass
Premium Predation Ecology
Speciation essay A species is a group of organisms that can breed together to produce fertile offspring. New species arise in two ways‚ hybridisation and polyploidy. Polyploidy is an increase in the number of sets of chromosomes. Hybridisation is the production of offspring from parents of two different species‚ this means though that the offspring is not fertile such a mule‚ a cross between a horse and a donkey‚ which is why hybridisation can only be explained in plants and not animals.
Premium Evolution Biology Species
Invasive Species Benefits For centuries‚ invasive species have been recognized as a threat‚ torment‚ and even a nuisance to society. Invasive species are any species that is not native to a specific ecosystem (7). The majority of people believe that invasive species are harmful; causing economic damage‚ disrupting ecological food webs‚ and out competing native species for food and land. The benefits of invasive species are overlooked and tossed aside by many people. Invasive species have the ability
Premium Invasive species Great Lakes Ecosystem
Amber Stout Pd. 6 Invasive Species Do you know how many invasive species there are in Hawaii? There are over hundreds and they are disrupting and damaging our ecosystem costing us millions of dollars to repair. Invasive species are a major threat to our environment and we need to stop them before they take over. Here are a few Invasive species in Hawaii. The Hypnea Musciformis (also know as Hookweed) is a reddish brown seaweed that has large hooks at the end of its branches
Premium Invasive species
This report is based on the study of ‘Species Diversity and Ecosystem Stability’ of the New Amsterdam Secondary School’s Eastern Field. This study was carried out by yours truly‚ Cynthia Rutherford‚ from the 26th January‚ 2011 to 5th February‚ 2011. Even though the study was done over a short period of time‚ I do hope that it will be lots of benefit to you the readers and edify you of our environment. Thank you. Title The title of this study is: ‘Species Diversity and Ecosystem Stability’
Premium Biodiversity PH Plant