Long Distance Movements Of Animals - 1388 Words

Introduction For most species, movement is essential for life. Movement of seeds helps plants disperse, while animals move to forage, reproduce, find alternate habitat types, repopulate areas where they have been extirpated, and maintain genetic diversity needed to adapt to change. If individuals cannot move across a landscape to mix with individuals of other populations, local extinctions can result. Additionally, the smaller a population is, the more vulnerable it is to extinction if that population is also isolated (i.e., lacks the ability to intermix with other populations (Fagan Holmes 2006)). Juveniles are often especially important for movements that help maintain genetic diversity in populations (Rothermel Semlitsch 2002). Long distance movements of animals can take one of two forms, migration or dispersal. Migratory movements consist of daily, seasonal, or even generational movements among habitat types while dispersal movements are movements away from a normal range, providing for the mixing of genetic materials, or the population of new habitats or repopulation of previously occupied but currently vacant habitats. When animals migrate, it is because there is a need for individuals in a population to move to a different habitat patch. These movements can be to reach a breeding site (Sinevro 2007, Webster et al. 2002), a more favorable climate (Peà ±uelas Filella 2001), an overwintering area (Wilcove Wikelski 2008), or better forage (Olson et al. 2006).Show MoreRelatedTransportation, Transportation And Transportation1477 Words   |  6 Pagesmodern world is advancing and will continue to evolve over time. It has not always been as advance as is it today. There are different modes of transportation such as air, railroads, road, and water. Transport and or transportation is the movement of people, animals, goods and possessions from one location to another. Having transportation help leads the drive of operations. Transportation is important because it authorizes trade between persons, which is crucial for the development of civilizationsRead MoreComparing the Life of a Dog and the Life of a C at712 Words   |  3 Pagestheir good life. Cats are similar to the dogs in that they are carnivores. Cats kept as pets should be taken greater case of it in the long run. The two are also very important as they are domestic animals. However, the two animals, the cat and the dog are enemies in some way (Peddie, 1994). They cannot stay in peace together. This is evident as the two animals keep on fighting over and over again. In more contrast, the cat is friendlier than the dog. People prefer cats to dogs. This is due to veryRead MoreThe Great Military Of The Nation State1359 Words   |  6 PagesWith the rise of the nation state has come the need for a force to protect it and project its political will. As nation states have grown, so too have the forces that protect it. Large armies that need to move any distance from their home bases need to bring their supplies with them or procure them on the move. Supplying these armies has always been a challenge, and it will continue to be a challenge in the future. Many great military leaders faced these issues; the greatest advances in logisticsRead MoreShort Story1363 Words   |  6 Pagesâ€Å"Shhhhhh†¦Ã¢â‚¬  while, Sopa spoke the other two men had their index finger on their lips. â€Å"Sounds like large cats.† Sopa said. â€Å"I can quietly go check them out.† Juma added. Instantly, wanting to identify the animal[s]making the moans, Dr. KK said, â€Å"No! I would not have any one of us go anywhere alone. Please wait!† The whole place was quiet, the moon rose high as it illuminated the night, highlighting images of different terrains and vegetation and outlining them in the dark. The stars continuedRead MoreHow Organic Farming Affects The Growth Of The Green Movement1061 Words   |  5 Pagesdramatically decreased and more insecticides has become extremely popular. In the 1960’s and 1970’s the ‘Be Natural’ approach started, people were becoming more concerned with their health and environment. This started up the growth of the green movement. The green movement helped conserve the environment and push farmers to go back to organic farming. People have become concerned with their health due to all the chemicals now put into farming. Organic Farming plays a huge role in health, government, and theRead MoreOrganism Physiology Paper885 Words   |  4 Pageseven known to live in larger river systems. Dolphins belong in the kingdom anamalia; phylum, corata; class mammalia; o rder, cetacean; sub-order, odonteceti; family, delphinidae; genus, delphinus; and species, delphis. Dolphins are believed to have a long evolutionary past dating back several, tens of millions of years Dolphins are very social creatures and use this group interaction for hunting, defense, and reproduction. Normally dolphins are found in groups or families of 2-40 members called podsRead MoreEcholocation Is A Sensory Ability That Uses The Reflection1291 Words   |  6 Pagestheir environment and reflecting off objects. The sound waves returns back to the animal for visual guidance. The information perceived from emitting the sound waves are typically used for distance and direction but are also used in a variety of ways such as finding food or escaping from predators. There are certain animals that use these traits both in water and in air in similar ways. Prime examples of these animals are bats and whales. More specifically the kind of bats that use echolocation isRead MoreEssay on Xenotransplantation758 Words   |  4 PagesXenotransplantation The progress thats being made in the field of Xenotransplantation; the transplantation of an animal organ into a human host, is vital to the betterment of science and medicine and should not be hindered by the ignorant trepidation of a few individuals. The number of patients requiring organ transplants has exceeded the number of available human donors. For this reason science is looking to xenotransplantation as a solution which may yield access to a plethora of availableRead MoreA Research Study On Bottlenose Dolphins1188 Words   |  5 PagesCoastal dolphin has a small body and large flippers to increase agility and heat dissipation. They have a limited movement into offshore waters and like shallow warm water near the shore. Coastal dolphins for the most part remain in their region. The Offshore dolphin has a large body to help conserve heat and defend itself against predators. They are less restricted in range and movement and like deep, cold waters. Offshore dolphins in the Nor th Atlantic have migratory patterns that follow prey distributionRead MoreThe Earliest Form Of Transportation Was Human Transport1095 Words   |  5 PagesThe earliest form of transportation was human transport. The first people on Earth had to cross large distances in order to find the resources to live such as shelter, water, and food. Around 4,000 BC, however, humans eventually were able to tame animals such as donkeys and horses in order to use them as transportation. About 500 years later, the wheel was invented in what is now Iraq and Egyptians developed sailboats. Romans were responsible for having constructed a complex network of roads which