Species diversity

is Ramapo Valley Reservation Park’s table . <Table 2> is Harriman State Park’s table. Relative density is percentage of number of individual of one species by sum of the individuals of all species. Relative frequency is percentage of frequency by sum of the frequencies of all species. Relative dominance is percentage of total basal area of one species by sum of the basal areas of all species.Importance Value is sum of relative density, relative dominance and relative frequency (Sewanee…

NEWS STORY SUMMARY Dr.Raffael Ernst and colleagues at the Senckenberg Natural History Collections studied how abandoned forest roads in the rainforest of Central Guyana impact amphibian diversity. The study suggest that these roads serve as a sanctuary for amphibians during severe dry periods to enhance their survival and reproduction. For example, the water-filled potholes of roads act as spawning grounds. Researchers suggest these roads should not be disturbed as they are advantageous to…

may alter their biological and chemical structures to differentiate them from another species. Charles Darwin, the father of evolutionary theory pioneered the idea that life had a common origin from which species arose from. In one of his famous works, “On the Origin of Species,” Darwin states that the mechanism that propelled these changes originate from the survival of the fittest (where the most successful species live long enough to contribute to the gene pool) (Darwin 144). However the…

impressively unique landforms and the geographical perspective and how Australia was formed is proved to be worthy of attention. Australia undoubtedly has one of the most unique environments in the world. Australia supports almost 10% of the biological diversity on Earth. Early in geological history, Australia was isolated from the rest of the world's land masses. This…

(cabbage/mustard) family. This species is an herbaceous annual or biennial field mustard. Europe is thought to be the origin of the species. However, many variations, including turnips, bok choi, and cabbage are known to have advanced in areas of Asia. B. rapa has now been introduced to natural and artificial habitats throughout the world via commercial cultivation and personal gardening. B. rapa presents significant phenotypic diversity. Generally speaking, this species has flat roots, large…

Loss of biodiversity: what are the causes and what can we do? Biodiversity is the variety of all forms of life on Earth - plants, animals and microorganisms. Biodiversity refers to: Species; Variations within species; and interdependence of species. It is interesting to note that only about 1.2 million worldwide species have been identified and catalogued out of a towering total of about 8.7 million, as of August 2011[1]. A range of factors and processes exist that influence biodiversity. They…

world. There are many consequences of biodiversity loss at many different levels. Starting with ecosystems and how they naturally function, there are three main aspects that account for the consequences of biodiversity loss. Species richness, species composition and species…

It consists of nearly 300 geysers, 12 major rivers, active volcanoes, more than 290 waterfalls, etc. This makes it an important place as it is home to many different species and natural elements.The Yellowstone National Park has to combat numerous dangers such as climate change and development which can possibly ruin or damage its environment. It has to take care of all its aspects in order for the vast amount of ecosystems…

Evolution is the change in the heritable traits and genetic codes of biological populations over successive generations which can give rise to biological diversity. Generally, evolution also define as the process which modern organisms have descended from ancient ancestors and the process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth. The genetic differences that are heritable will passed on to their offspring or the…

with its beak.Parrots are birds of the roughly 350 species in 85 genera that make up the order Psittaciformes, found in most warm and tropical regions. Also known as psittacines (pronounced /?s?t?sa?nz/),[1][2] they are usually grouped into two families: the Psittacidae (true parrots) and the Cacatuidae (cockatoos). Parrots have a pan-tropical distribution with several species inhabiting the temperate Southern Hemisphere as well. The greatest diversity of parrots is found in South America and…