Interspecific competition

Coevolution is the process by which two or more closely interacting species evolve in response to one another. Darwin is attributed with first hypothesizing coevolution in “On the Origin of Species” published in 1859; since that time, coevolution has become one of the cornerstones of modern evolutionary biology. The species that lead to the discovery of coevolution was the Angraecum Sesquipedale, a variety of orchid with a spur extending over 30cm long. When Darwin received a sample from…

study period. Researchers concluded that feeding behavior was unaggressive due to lack of competition and relative abundance around the dock area. Cats also fed on natural prey such as pigeons and rodents. The urban environment was noted to be extremely conducive to the catching of prey given the availability of structures in place to aid in the cats’ ambush style predation. In terms of mating, little competition appeared to exist due to the low population density of the free-roaming cats. No…

John Badgerow, in his article An analysis of function in the formation flight of Canada geese, experimentally validates two proposed ideas explaining collective movement among geese. The first hypothesis, energy conservation in flight, originates from aerodynamic formations of other species and states that group flight is more efficient than solitary flight in terms of expended energy. The second proposition, orientation communication between individuals, predicts that formations arise from the…

Charles Darwin, associated with Cambridge University, revolutionized science with his theories of evolution. His ideas birthed new ways of understanding how species came to be. According to Darwin , the key driving force behind evolution is natural selection, which occurs under environmental pressures leading to speciation or changes within species. It favours the traits most adept to surviving in an environment’s conditions and weeds out those that are not through the four aspects of natural…

The effect on panda after the 512 earthquake in Wenchuan,China Panda (Ailuropoda melanoleuca）is one of the world's most endangered species, that unique and rarely exist in China. The Earthquake that took place in 2008 Wenchuan, China, cause of huge damage to the ecosystem, which breaks down the environment that Panda live in and harm the living habitat of the panda. On May 12, 2018, an 8.0 degree earthquake took place in Wenchuan, China. The quake damage thousands of lives. Through the…

black-capped chickadees would be able to evaluate the accuracy of this statement; another interesting use of alarm call is how it is a tool for bird to not only protect their population, but also to increase individual fitness and fight off intraspecie competition when it comes to food sources, we would examine this by looking at a…

The focus of this investigation is to record, process and interpret the zonation of a community of species on the rocky shore of Te Raekaihou Point. The site data was collected from the rocky shore at Te Raekaihou Point, and my chosen species are the Blue-Banded-Periwinkle (Austrolittorina antipodum), and the Brown-Barnacles (Chamaesipho brunnea). The community pattern found in the rocky shore is zonation. Zonation is the division of plants and animals into distinct horizontal bands, or ‘zones’…

force that encourages individuals and organizations to improve their material well-being Wants - Desires that can be satisfied by consuming a good or service Competition - A common demand by two or more organisms upon a limited supply of a resource; for example, food, water, light, space, mates, nesting sites. It may be intraspecific or interspecific. Trade Off - Giving up one thing for another Stock - A certificate…

Ningaloo Reef Marine Ecosystem 1. Identify ten organisms from your chosen ecosystem and draw a food web to show trophic interactions between them. Within this food web, you must include and label a decomposer. Ten organisms that live in the Ningaloo Reef include the bottlenose dolphin, loggerhead turtle, tiger shark, whale shark, Southern Calamari squid, jellyfish, zooplankton, dugong, phytoplankton and seagrass. The decomposer in this food web is bacteria, which works to further break down…

This can also lower the survival rates of the small wild red wolf populations. In areas where the wolves have been introduced, aggressive behaviour has been observed between the two species. Understanding the effects of interspecific competition is important for successful reintroduction of the red wolf (Roth et al., 2008). A study on the impacts of coyotes on red wolf survival (Roth et al., 2008) used red wolves fitted with radio collars in North Carolina to calculate…