Population ecology

Sustainability is defined by Miller & Spoolman, (2009) as the “Ability of earth’s various systems, including human cultural systems and economies, to survive and adapt to changing environmental conditions indefinitely.” Applying this definition to ecology, there are four scientific principles of sustainability that highlight how the ecosystem has naturally sustained itself for billions of years. The thought by environmental scientists is that if humans incorporate these principles into our…

environment. If society begun to take less of the worlds materials this would also enable Third World countries to develop an economic place within the world market, reaching goals of equity. The global consumer bottleneck displays that the human population will reduce below 10 billion by 2050 although it could be centuries before the world experiences the reduced levels of consumption (IUNC 2006). This raises the question of where the plant’s ecosystem and species will be or whether they will…

Briggsdale Undivided High School The Rustinian Red Bird The American Kestrel Netheniel Langdon Ecology 1022-1 Mr.Kopanke Friday, March 3rd 2017 The American Kestrel The american kestrel is a good looking bird with a few different color variation. This animal is biotic. It comes from the family of falcons. This is the smallest one of the species of falcons. They live in open country farmlands and wood edges. During the breeding season the kestrel may be limited to the…

for 50 years and automatically stop. Watch the graph to confirm that the size of the moose population changes dramatically when the moose first arrive, and then eventually stabilizes (levels out). ← You can adjust how fast the simulation runs with the SPEED slider to the right of the control panel. 9 Once 50 years have passed (model years — not real years!), examine the moose population graph and answer the questions below. (NOTE: if you can’t see the whole graph, use the…

Invasive species are easily comparable to the explorers of the old days. Explorers could be helpful by introducing new supplies, like horses, during the big Columbian Exchange. Explorers could also be largely negative, bringing disease and slavery into the nations they conquered. Explorers sometimes just set up trade relations and left well enough alone. Much like these explorers, invasive species have the propensity to help, hurt, or assimilate into their new surroundings. Experts on invasive…

Chapter Seven: The authors job as a Wildlife Conservation Department director changed his focus from extinct species to protecting the living ones. It reminded him of the species richness of the earth. Ecologists have three levels of this diversity. These measurements are the alpha, the beta and the gamma. The alpha diversity tells how many species are in an ecological community. The beta diversity compares that to the nearby communities that have different physical characteristics.…

1. Perspectives are very important aspects of Environmental Science. They are frequently not black and white or cut and dry, so to speak. A perspective can be defined as, a particular attitude toward or way of regarding something; a point of view. A. Ecocentrism is a philosophy or perspective that places intrinsic value on all living organisms and their natural environment, regardless of their perceived usefulness or importance to human beings. Therefore, someone with an ecocentric view point…

From 1965 to 2010 the world population line has a constant increment and this is reflected even to the CO2 emission too. Oil consumption and production are stand-ins for all carbon-based energy consumption and production. This representation intends to show the trend for continuing growth…

The effects that human development has had on the natural environment, are only recently beginning to be realised, and has led some scholars to call for the current geological epoch to be termed the “Anthropocene”, due to the great effect human populations have had on the natural environment (Steffen et al. 2011: 843). There has also been a rise in environmentalist ideologies and environmentalist organisations, based on the increasingly popular notion that human interactions with the natural…

of the most successful fish invader in the western Atlantic Ocean as it consumes a wide variety of prey. Several life history and behavioral traits make them an atypical marine invasive species because they facilitate their continued spread and population growth (Arias-González JE and al. 2011; Raloff J. 2006). These traits include the facts that P. volitans can reach sexual maturity within one year, all the while having high reproductive output, and experiencing virtually almost no predation of…