Species

Charles Darwin, in On the Origin of Species, explains his theory of natural selection and its power to shape the evolution of species with help from the example of how species are shaped through domestication, or rather, artificial selection. With the example of domestication, however, there is a potential obstacle as to the validity his theory. Fleeming Jenkin presents this obstacle by saying Darwin’s theory “rests on the assumption that natural selection can do slowly what man’s selection does…

For thousands of years around the world different species of animals or plants have been either transported intentionally, or through the process of globalization. In many cases, the transported animal or plant does not thrive in its new environment. Due to a lack of proper food sources combined with the wrong climate can result in a rather short life span for said animal or plant. Unfortunately, in some cases, the specimen thrives and is able to successfully reproduce and spread throughout its…

There are many species all over the world in many different ecosystems. But some of these species do not belong in the ecosystem they are in and these are called invasive species. Invasive species are non-native species of plants and animals introduced to an ecosystem usually by humans. The invasive species can thrive in an ecosystem where there are little to no natural predators and an abundance of resources. Due to these factors the invasive species can dominate an ecosystem and disrupt its…

Most animals especially marine species on the Earth right now are struggling to face one major problem that they cannot resist it from happens which is extinction of their own kinds. This issue is what most human just ignore about and they tend not to deal with it. History of Earth shows that there are five major extinction events and the fifth extinction is the one that killed every dinosaur on the Earth surface as a result of an asteroid. Earth is now in the eve of sixth extinction as humanity…

How Species Adaptations Affect Their Survival In Respect To The Environment Background Information What are adaptations and what causes them to occur? Adaptations occur within a species, or kind. Adaptations are what can either be an advantage or disadvantage for as an example an animal such as an Giraffe. A Giraffe has a long neck as in the past, food wasn't as scarce and was easier to find lower towards the ground, but over a long period of time, the Giraffes developed a special adaptations…

the way species evolve and change. Especially considering you developed these ideas without the understanding and knowledge of genetics and molecular biology. But still, you have managed to develop a set of laws explaining the evolution of species, which later became the backbone of biology. Impressive. You have made one of the most important contributions to the science of evolution; your concept of natural selection. Natural selection is the basis for our understanding of how species evolve…

INTRODUCTION Background Invasive species are defined as non-native species that invade ecosystems and propagate to a point where harm is induced on native species. Types and abundance of harm caused to native ecosystems can vary greatly depending on various biotic and abiotic factors. Although the amount of accredited research devoted to aquatic invasive species (AIS) doesn’t reach far beyond the past few decades, the natural history of invasive species surely does (Pysek, 2010). A great deal…

Conservationists have had a tight focus on invasive species for decades. These species cross ecological boundaries and establish themselves in new areas where they affect the environment indefinitely. Conservationists are skeptical, and for good reason: Invasive species collide with natural environments and as follows, affecting biodiversity. Invasive species can benefit endangered environments; however, there should be stricter regulations of imported species to avoid the possibility of…

What do you think an invasive species is? Well, invasive species are any living organism that causes harm to humans, the economy or the ecosystem. These species have similar traits which help to identify them, they have a : fast growth rate rapid reproduction high dispersal ability Invasive species are capable of causing more harm then you realise, they can completely wipe out native plants and animals to that area, forcing them to extinction. Invasive species can reduce biodiversity, they…

foreign ant species has found its way in the US, particularly in the state of Florida. The said ant is native to Madagascar but has made its way to Caribbean countries decades ago. Now, it is set to invade the US state. In Florida, there are currently 19 invasive ant species, which often thrive in warm weather and human activity such as the said state. The little yellow ant (Plagiolepis alluaudi) is an invasive, highly-reproductive, and foraging experts. At less than 2 millimeters, these…