Invasive Species Essay

Introduction Hemicentetes semispinosus is a species of tenrecs found on Madagascar that possess black and yellow quills. The trait of the species that is believed to be an adaptation are the quills because the length of the quills vary by 8-15mm (Cho et al. 2012), are barbed and can be detachable, which could indicate that it is used for defense against predators, such as viverrids, owls and boas (Eisenberg & Gould, 1970). Their behaviour also suggests that it is used as a line of defense…

Kindred and Coexisting As humans develop, the need to expand increases. Some of this increase causes the destruction of nature on the very foundation in which the new buildings and complexes stand. In the two pieces of writing, The Serpents of Paradise by Edward Abbey and Wasteland: An Elegy by Mary Oliver, the authors examine their own personal experiences with nature. In order to show that humans should treat nature with care, the authors narrate their story in first person, but choose…

classifying species based on a small bit of genetic code found on an enzyme in the mitochondria called cytochrome C oxidase subunit 1 (Pg. 84). The enzyme was chosen because it had enough base pairs (648) to be able to differentiate species, but not long enough to take too much time to read. This new way of categorizing different species arose from the age-old way of categorizing species because it was more efficient. The article mentions how morphology, the classic way of differentiating…

selection of habitat across three spatial scales and the effects of understory arthropod biomass, vegetation structure and breeding productivity. As human populations grow and urban development increases desirable habitat for many habitat-specific species decreases resulting in population declines. It is important to understand habitat selection criteria the negative effects of urbanization on the flycatcher to establish management techniques and implement any necessary conservation efforts.…

American University of Beirut (AUB) Faculty of Engineering and Architecture (FEA) Department of Electrical Engineering Biomedical Engineering Seminar (EECE 401) Prof. Nassir Hussni Sabah Assignment 1 Seminar on Birdsong Waddah Malaeb Mechanical Engineering 201204320 wam13@mail.aub.edu 1. Describe the neuronal pathway involved in vocalization of bird song. In the above figure shown, in blue is the vocal motor output pathway, where the signal begins in the HVc (High vocal center) which…

because of their common developmental history. Three physical highlights isolate insects from different arthropods: they have a body separated into three locales (head, thorax, and mid-region). There is tremendous variety in body structure among insect species. These variety enable insects to involve relatively every environmental specialty on the planet, aside from the profound sea and the Antarctic. Because of its life span, on earth, cockroach is thought to be one of the hardiest gatherings…

The purpose of this lab is to observe isopods and examine their responses to a chosen factor, the preference of either a dark or light environment. From observing the responses of the isopods, the behaviors of the isopods will be decided whether they fall into taxis or kinesis. Chi-Squared test will also be calculated in order to determine whether the observed results were due to chance or preference. Terrestrial isopods are commonly known as pillbugs, sowbugs, or “roly-pollies”. These…

In these three passages; "Florida Waters Treasure Hunters" by Scott L. Key; "Weather Reconnaissance" by Harriet Jane Caldwell; and "Search For Ancient Civilization" by Juan De Los Santos, they all share a similarity. They share similarities of finding hidden treaure, also where and when storms are going to hit and ancient civilizations. But they also have differences like what tehnology they use to find those things. I think that in the passage "Search for Ancient Civilization" they…

Evolution is the change in allele frequency in a population over time or, more simply, the process by which populations of organisms change over time (helped by the process of natural selection). Artificial selection does support this theory, except that the evolution happens intentionally, instead of naturally. Due to random mutations, variation within a population exists, allowing certain characteristics/genes to be selected as more favorable than others. Therefore, humans breed organisms with…

gold, and red. Alongside many eye-colors, they also have much variety with their pupils. Some frogs have sticky padding on their feet while others have little webbed feet. If not even all frogs have all of the same qualities, how can we tell what species the little amphibian in our garden is? Toads too have numerous shapes, sizes, and textures, but they don’t have too much variety in color and usually end up brown. Toads are usually broader and flatter than frogs. Toads are also quite chubby…