Greater Yellowstone Ecosystem

enhance sport fisheries (De Vries & Stein 1990; Kamler & Pope 2001; Pikitch et al. 2004; Chipps & Garvey 2007). In summary, stomach content analysis is used in understanding of many aspects of fish ecology on individual, population, community and ecosystem levels. It helps us study and explain specific problems of interactions, evolution, speciation, invasions and fishery management nature protection. As a result, stomach content studies can be incorporated into a variety of different research…

understanding a water body due to its important ecological role and its ability to characterize the water quality (Ghazan et al 2006). Aquatic macrophytes are important because they play prominent role in nutrient and heavy metal recycling of many aquatic ecosystem (Pip and Stepaniuk 1992). Heavy metals and other contaminates can be removed by microorganisms. It has been demonstrated that aquatic macrophytes such as Eichornia crassipes, Lemna spp. Salvinia spp, Typha spp and Azolla spp. has been…

competition between two different species. Interspecific competition results from many species with similar niches and limited resources available. A niche is defined as an area that a species inhabits, the role or function of the species in the ecosystem and the species relationship with all is biotic and abiotic factors affecting it (Biology online dictionary, 2015).The limiting resources could be resources such as mates’ nutrients and space (M. Beals, L. Gross, S. Harrell, 1999). Competition…

“Invasive species” refers to an ‘alien species’ whose introduction ‘does or is likely to cause economic or environmental harm, or harm to human health.’ Although this is a species that is not native to a particular ecosystem, it is important to realise that not all non-native species are invasive. A ‘native’ species is one which is found within a particular region. An invasive species has the potential to influence a wide range of areas, including; environmental, economic and social factors.…

the masses, and with a viral pandemic plaguing humanity, it is not a farfetched vision. In our world today, “the walking dead” are not zombies on a mission to terrorize humans; the walking dead are millions of plants species, animal species, and ecosystems that are quite literally:…

of mutualism, neither organism could live without the relationship with the other, just like interdependence. Both terms play a vital role in the ecosystem, food chains, and food webs.…

The Spillway or City Park: Which has more arthropod diversity? Author: Madeline Lafargue BIOS1071-007 Group Members: Rebecca Ostrowski and Khayla Wright ABSTRACT The purpose of this study is to find out how habitat type affects arthropod diversity. There are many different types of arthropods, making up the majority of animal life on Earth. Arthropods vary among different climates and conditions, including some near water habitats and some habitats without water. The following…

a healthy and stable ecosystem, although a keystone species is not present. This disproves the hypothesis formed earlier in this lab that stated, “The pond is not ecologically stable and there is no keystone species. The pond does not seem to be biodiverse, and the relative population sizes of the organisms appears to be low, based on visual observations. A keystone species also does not appear to be present, or else it’s population is low, and dying out, meaning the ecosystem is collapsing.”…

plants and animals are well adapted to this environment. Though, similar to other biomes, the Chaparral can be impacted by humans and environmental factors. In addition, the altering of organisms’ energy sources can negatively impact the biome’s ecosystem. It is important to have a biome where humans, plants, and animals can coexist utopically. The Chaparral biome is considered appealing to humans, hence it is a tourist attraction. To accommodate the tourist’s needs, humans are developing…

There are many plausible reasons for the discrepancy in the observed heterozygosity of Blanding’s turtles in the Kingston area. A few possible theories may explain these such as habitat loss due to the urbanization of Area 2, human impact, and nest predation. The Hardy-Weinberg principle states that the allele and genotype frequencies of a population will remain constant as long as population remains large. Thus, a change in the population may change the allele and genotype frequencies which may…