Species College Essays Samples For Students

In a given ecological setting, some species dominate and influence the abundance of the other species in that ecology. Two pathways, which lead to dominance, exist: competition where the dominance species has superior access to the limited resources and low susceptibility to other processes that are not competitive. In the second pathway, the non-dominant species are normally very susceptible to the non-competitive processes. The former pathway is highly interactive and the dominant species suppresses its subordinates by limiting the resources available to them. Sustained dominance reduces the diversity of species that ecology. The second pathway is weakly interactive and the ...

Environmental Studies

The need for a precise forecasting of the impacts of climate change on the future distribution of the Earth's principle biome is increasing. In this paper, forecasting methods covered include: the niche-theory models which categorize species by habitat (particularly environmental conditions where species may persist or perish). The general circulation models and the species-area curve models which consider large groups of species or all species.
The existing climate models based on approximations of increasing carbon dioxide and, to some extent, by lessening sulfate aerosols, forecast that temperatures will rise by 2.5-10.4oF (1.4-5.8oC) between the year1990 and 2100. Greater warming ...

Essay 1

GENETICALLY ENGINEERED MOSQUITOES COULD BE A VITAL WEAPON AGAINST MALARIA: ECOLOGICAL THINK PERSPECTIVE
INTRODUCTION
The ecological system continues to experience a number of transformations in so far as environmental wellbeing is concerned. The text can be analyzed and evaluated from the ecological think perspective in so far as nonhuman charisma characterization is concerned. Species can be modified into different forms to the extent that they are able to conform to the modes so desired. Different ecosystems have different species, some of which are very harmful to the existence of other species. Mosquitoes are by far some of the ...

- (6 pt.) Describe the effects harvest, disturbance, and nutrient enrichment by humans have had on other wild populations. Be sure to explain how these activities act as selective agents and what the most-fit phenotype will be under these circumstances.
Human activities have emerged to be the most precarious and dreadful to the wild population. Notably, human interfere with biodiversity and wild population in a number of ways. Overharvesting includes activities such as target haunting, gathering or fishing for a particular species. Overharvesting has been associated with extinction of some species of organisms. For example, advancement in technology after the ...

Abstract

This essay outlined a debatable question associated with humanity which is the greatest threat to global biodiversity. Biodiversity exists abundantly in the form of plants, animals, and organisms that is imperative to satisfy our basic needs. However, it is widely threatened over the years, and many organisms have gone into extinction due to various activities frequently driven by humans. Numerous species and ecosystems are being put to the threat of destruction with a higher rate of extinction. In fact, the technological advancement has transformed the world that leads to deforestation & habitat revolution, food demand, overexploitation, the introduction of invasive ...

It is a shame that books like Jerry A. Conye’s best-selling book Why Evolution is True (2009) is necessary for the twenty-first century. After all, Charles Darwin wrote his groundbreaking work On the Origin of Species by Means of Natural Selection was published in 1859. Since its publication many other scientific discoveries have been made to support Darwin’s dangerous idea. Evolution should not be a controversial issue and sadly it remains so even in the most educated countries of the world. Part of the controversy could be because many people who oppose evolution have no idea what evolution is. ...

Is Evolution True?

Is Evolution True?
Development can be defined as the fundamental process whereby species that are new develop from earlier species through accumulated changes. Sometimes an evolution is described as "descent with modification". As this process of speciation continues to take place, many species start to appear thus becoming increasingly different, and this continues over time and becomes a pattern. Through many observations of the changes in life forms over time, these models have been developed. Charles Darwin explains that the mechanism on hoe evolution occurs is by natural selection. Having constantly been observed, natural selection role in being the ...

Introduction

Evolution is the change animals and species undergo over time to adapt to certain environmental changes and eventually produce multiple descendent species. Evolution and natural selection are often taken as complimentary to each other. However, evolution, by definition, is a historical process of change, while natural selection is merely a mechanism that results in this change. Advances in technology and biology has thrown light on several causes and consequences of evolution. Some of the deepest understandings of evolution come from understanding fossils and examining phylogeny and from the study of natural selection. Evidences suggest that when natural selection is strong, the rate ...

Justifications, Problems, and Solutions

The broad goal of conservation biology is, according to experts from the American Museum of Natural History, is “to conserve global biodiversity” (Calcagonotto, Egan, and Lehn 2001). Small population conservation biology is a facet of conservation biology that deals with the more specific issue of trying to preserve endangered species that have extremely low populations, and the efforts to conserve these species can be very expensive. The question of whether or not this type of conservation biology is ethically justifiable is one that can be explored by examining the approach of small population conservation biology, examining a test case from the ...

Cranium C belongs to the Australopithecus anamensis species, the earliest of all the species mentioned below to exist. The remains of this species were located in the Eastern Turkana part of modern Kenya (Bali, 1994). Some of the remains that were found include teeth, jaws, humerus and the tibia. It had a body size ranging from 45 kilograms to 60 kilograms and it was known to be very dimorphic. It dates to around 3.1 million years ago. Inside the mouth of this species there were large canine teeth which had a thick layer of enamel. This species was also ...

A Previously unknown species of hominins, Homo Naledi was discovered as recently as 2013, in the Dinaledi Chamber of the Rising Star cave system. Researchers found an extensive collection of fossils, belonging to 15 individuals of the same species. When examined, researchers found that the individuals belonged to a previously unknown species, because their morphology was different than that of other known species of primates. In their description, Berger et al. found that the hominin has unique cranial morphology, although closely related to other species of hominins, human-like adaptations of the hand and wrist, and humanlike foot and limb ...

Habitat Destruction and Management

Question. Provide a thorough review of the patterns of habitat destruction explored in lecture.
Answer: Terrestrial habitat destruction is the result of increase in population. The main activities that cause terrestrial habitat destruction are clearing of natural plantation for agricultural activities, mining, logging and urban sprawl. Terrestrial habitat destruction has led to the extinction of rare species of organisms across the world. 50% of the world’s land (excluding Antartica) has been transformed or degraded and 50% of transformed land is used for monocultural agriculture & pasture. Aquatic ecosystem destruction is due to the pollution in the environment and water. ...

Identification of each individual from the massive inventory of living organisms requires appropriate classification system. This system allows not only identification of all specimens that are already collected, but also allows identification of the newly discovered organisms in the future. The classification system is robustly based on science and logic, so this system is universally applicable.
The classification system starts by grouping the specimens into two major categories namely animals and plants. In general, animals are grouped by the presence of appendages that implies the ability to move on their own while plants are grouped together based on ...

Introduction

An ecosystem is defined as the interaction of the organism and other nonliving factors in a certain community. The living components of an ecosystem, such as plants, animals, and other organisms, can be classified as the biotic component of the ecosystem, whereas the environmental conditions such as water amount, humidity, soil nourishment, temperature, and the like are termed as the abiotic factors. In an ecosystem, both the existing biotic and abiotic factors determine what kind of species live there. For example, turtles, which require a large amount of water to live in cannot possibly hope to survive in arid ...

According to Wilson and Bossert, population biology is the study of how populations of organisms change through time, essentially dealing with births, deaths, emigration, and immigration and the factors that affect these four variables (Wendell, 2012). The characteristic change in population of organisms can significantly be attributed to the competition between species that fight for scarce resources. This competition shapes the biological population and causes extinction of some species. The objective of this paper is to understand how competition between different species is important in the shaping of biological populations, including the possibility of such competition leading to extinction. ...

INSECT HABITAT

INSECT HABITAT

Average and Median
What was the average number of arthropods found in the unvegetated microhabitat? ___0.46___
What was the average number of arthropods found in the vegetated microhabitat? _____0.14___
What was the median number of arthropods found in the unvegetated microhabitat? ___ 0_______
What was the median number of arthropods found in the vegetated microhabitat? ______0_____
What was the average number of beetles found in the unvegetated microhabitat? _____ 0.39_________
What was the average number of beetles found in the vegetated microhabitat? ____ 0.79_______
What was the median number of ...

Introduction:

Phylogenetic tree also known as evolutionary tree depicts the connection between various species of animals and plants based on their physical and genetic traits. Top points of the trees symbolize descendent common species whereas nodes symbolize common ancestor of descendents. Phylogenetic trees very effectively show the evolution that took place by adaptive and sudden ancestry splits. The Phylogenetic trees can be classified mainly in four types rooted tree, un-rooted tree, bifurcating tree and special tree types.

The basal universal phylogenetic tree inferred from comparative analyses of rRNA sequences.

1. Horizontally acquired variations – Horizontal acquire variations occurs due to horizontal gene transfer. Horizontal gene transfer also known as lateral gene transfer is a ...

The Scientific Method is a way that Natural Scientists determine, test and prove their hypothesis. It is an organized way to prove or disprove a theory ("Scientific method," 2014).
In the context of evolution, the question to ask is: is evolution true? The next step is to do some preliminary research in order to put the question in the form of a hypothesis. To do this, the background research aims to determine if there is any empirical evidence that may support the question. The other area to explore is to question what else may have contributed to the end result, if ...

THE SCOPES TRIAL

The scopes trial is also famously known as the scopes monkey trial and was a trial which involved the state of Tennessee against John Thomas Scopes. The charge against scopes was teaching evolution. Apparently back in 1925 it was illegal to teach anything about evolution in schools that were funded by the state. Back then people believed in the divinity of the bible. Anything in the bible was considered truth that was incontestable by any human being irrespective of the evidence at hand. Teaching evolution was tantamount to blasphemy against morally accepted truths by the people. The Buttler act made ...

Evolution involves the changes to the properties of an organism that go beyond the life span of a single individual and it generally occurs as a result of either natural selection, mutation, genetic drift, or by the process of gene flow or migration. The evolution theory is regarded as one of the immense intellectual revolution in the history of the human beings and it has considerably changed the world’s view of the process of evolution. Charles Darwin is credited to have played a significant role in the development of the natural selection theory that supports evolution. As a result, the natural selection theory ...

The majority of scientists are in agreement that global warming is occurring and is caused by human activities over the last two hundred years or so. Global warming is caused by the build up in the atmosphere of gases such as methane, carbon dioxide, nitrous oxide and others which have been created by the burning of fossil fuels in order to produce electricity, and for use in industries and motor vehicles. Another contribution to global is the removal of vast areas of natural forest from the planet. . The majority of carbon dioxide exchange between the atmosphere and the earth ...

Introduction

Homo floresiensis nicknamed “Hobbit”. The fossil was found by Indonesian and Asian researchers on the Flores Island, the Island is located between Asian and Australia. The fossil was excavated from one of the caves in the island and is believed to have lived between 95,000 and 18,000 years ago. The Flores was in the early days separated from other continents, researchers believe that this is an area that was occupied by very few mammals. Few mammals and reptile species typically occupied the island during the Pleistocene period. The common reptiles that were found in the area included ...

1. Ecosystems.
(10 pts) Provide a review of the process of succession and trends in biodiversity, productivity, and nutrient cycling.
Ecological succession refers to the process of gradual change of the ecosystems. This is attributed to the fact that habitats do not remain constant and they keep changing over time. Succession is divided into two; there is primary succession and secondary succession. Primary succession refers to changes which occur on an environment that has never been colonized before, for instance, quarrying on land that has never been quarried before. Secondary succession on the other hand involves environmental disturbance ...

The inherited characteristics in a species population change over time through genetic drift, mutation, and natural selection. Natural selection was first proposed by Charles Darwin and it explains the emergence of species that are best fitted (adapted) to certain environments in which they live. The mechanism of evolution is explained by the theories of phyletic gradualism and punctuated equilibrium. In this paper, both phyletic gradualism and punctuated equilibrium are evaluated. Phyletic gradualism and punctuated equilibrium seek to explain then rate of evolution.

Phyletic Gradualism

Gradualism is a model of evolution that suggests that speciation is a slow, constant and consistent process. It is not ...

Once revered as a zone of hardwood forest, the vegetation of Ohio has currently reduced from what it used to be but still boasts of possessing a wide range plant species. Nonetheless, the vegetation remains significant in the Eastern North America despite currently being impossible to form an elaborate picture for the actual appearance of the forest. This can, however, be blamed on human activities that did not see it fit to preserve primeval vegetation section for austerity purposes in the future. The vegetation though is still with diverse natural vegetation with significant forest regions that sometimes can be ...

Chapter 9

Question 1

Binary mission in prokaryotes
Mitosis and
Meiosis in eukaryotes
Question 2
The development of embryos as well as the growth and development of bodies.
Important in asexual reproduction.
Question 3
The term cell cycle refers to an ordered set of events leading to cell growth and division into two daughter cells.

Question 4

Interphase is a phase of the cell cycle characterized by the absence of cell division. During this phase, the cell obtain nutrients, the organelles duplicates, protein synthesis takes place, and cells duplicate its genetic material (its chromatids). The genetic material is located in the nuclei of ...

The Earth is home to an innumerable amount of plant and animal species, with any estimate ranging from 2 to 50 million being as good a guess as any. 950,000 kinds exist within the insect class alone, while annual naturalistic publications are often able to showcase up to 10,000 newly discovered species. This incredible genetic diversity is preserved by unique natural phenomena known as isolation mechanisms to prevent accidental matchups between different species. But how did so many different types of plants and animals develop in the first place? What was the driving force behind our planet’s ...

Birds' surveys are used to give reliable approximate or index of the size of the population of a definite species due to various reasons within a given area (Gitzen 2012). Birds' surveys are often conducted to assess habitats for suitability to support breeding and at times wintering birds species and record incidental bird citing during visits. Special emphasis is often placed on the suitability of the site for given species and due to conservation concerns. After an initial assessment, further surveys may be required for obtaining detailed account of birds species of birds and communities in key habitats areas. The counts ...

Introduction

Dissimilarities and similarities among different groups of organisms are the result evolution. This change occurs in the characteristics of different biological populations with the passage of time. The four forces of evolution result in speciation. Speciation is the process in evolution through which new species arise. It could result from any of the four forces of evolution. These are genetic drift, mutation, gene flow, and selection. They lead to slight changes in existing species, as well as the formation of new species.

Mutations

This is the main source of evolutionary change. It occurs randomly, when mistakes take place in copying ...

Ecology is the scientific discipline that brings together facets of other disciplines. It is the study of organisms and their environment and the relationship between the two. In this it overlaps into disciplines such as environmental science and biology among others. R. J. Putman and S. D. Wratten in their book “Principles of Ecology” note that ecology as a term has taken on a number of meanings. “Human ecology” is sometimes used as a political term to describe an individual’s relationship to a society. As the earth is a varied places of numerous and changing environments that hosts millions of diverse and evolving ...

[Class Title]

I’m an Australopithecus Afarensis. Our species belong to the family of hominids and lived approximately three million years ago . Accordingly, we are the most resilient hominid species and also the most popular owing to the discovery Lucy and the First Family, which were both found in Ethiopia. Evolutionists believe that we are the earliest ancestors of the human species while others are just undecided because of the many differences that our species possess as compared to the modern humans. At a glance, one would mistake us from the common chimps yet we have peculiarities that are quite ...

Did domesticated characters exist in wild ancestors?
Considering that many animals have been domesticated over a long period of time, the question that is usually asked is whether these animals came from the wild ancestors and were a process of evolution that was experienced by each and every other animal in those periods of evolution. According to Darwin it is impossible to come to an exact conclusion as to whether these animals came from one particular species or from several others, however, he argues that the wide range of varieties that are domesticated were derived from few ancestors. These animals ...

Traditionally, animals have been assumed to respond to changes in the environment the same way as humans do. This assumption has been continuously used for product testing, research, and educating of living animals. Animal experimentation is done in a broad range of environments, including agricultural facilities, universities, hospitals and independent laboratories. This technique is used to assess the safety of the products such as cosmetics, chemicals medical services, and household products. However, animal-based testing methods have failed the human needs due to varied reactions of various animal species to these commodities. Moreover, the methodology has received severe criticism from ...

Botkin and Kellar (2014) describe an ecosystem as “communities of organisms and their nonliving environment in which nutrients and other chemicals cycle and energy flow.” I have chosen the forests of Pennsylvania as a holistic ecosystem to examine.
Pennsylvania has approximately 17 million acres of forest, making up 59% of this State. The predominant species associations are oak/hickory in the central and southern areas and Northern hardwood (including black cherry, maple and birch) in the north and north-west (Sustaining Penn’s Woods, 2001). The vast forest area contains mature ecosystems with the aforementioned tree species as the climax species. ...

1) Lionfish, belonging to the genus Pterois, is native to the Pacific and Indian oceans. They inhabit the coral reefs and lagoons and predate the small fish. Lionfish is now abundantly encountered in the United States East coast and Caribbean Sea.

There is a speculation that the lionfish was released from an aquarium in South Florida in the hurricane Andrew in 1992, although the lionfish was first discovered in the South Florida much earlier in 1985. In the last two decades the lionfish particularly the P. volitans species has expanded largely across Western Atlantic and Caribbean (Albins and Hixon, 2011). ...

Sustainable Aquatic Ecosystem

The Pismo Dunes
The Pismo Dunes, also called Nipomo Dunes, are one of the biggest, comparatively undisturbed dune compounds located in California. These dunes stretched eighteen miles from the end of the northern part of Pismo State Beach up to Point Sal State Beach. In this essay, we will discuss the ecosystem of the Pismo Dunes and its processes that are commonly found in most aquatic habitats. We will also learn the management system used in managing and sustaining this ecosystem.
The Pismo Dunes are a dynamic ecosystem, which are one to three miles in width. These dunes ...

The purpose of this paper is to review the article, “Was Darwin Wrong?”, by David Quammen (2004) and to offer some discussion at the end of the paper. The main thrust of the Quammen’s article is to provide a description of the current and past evidence that supports Darwin’s theory of evolution through natural selection. With a few exceptions, the title of the article is answered with a firm “no, Darwin was right.”
Quammen first began with a discussion of the concept of theory and explained that a theory is an explanation for a set of circumstances ...

(Teacher)

Introduction

The state of the natural world is always hanging in a delicate balance. No other creature on the planet has a deeper effect on the balance than humans do. Endangered and threatened species is the effect of human activity. Humans have an innate ability to create chaos in the world around them. The more a civilization is destroying the natural world, the worse the natural world becomes. This is evident by the numbers of endangered species that rises. It is difficult to center on just one single species and ignore the rest. Each species deserves to be recognized ...

Mirna Salim

Introduction
Cats have been living with us for thousands of years. As opposed to other domestic animals like cows and sheep that provide as with food and other raw materials, it has never been clear the main reason why human domesticated cats. Some schools of thought believe that cat was domesticated to help human eradicate rodents which were destroying crops. However, others believe that cats were domesticated just to be pets, to keep human company. This research will not major in the reason as to why cat was domesticated, but rather will focus on the origin of the domesticated ...

Abstract

This essay aims to explore several scientific issues: the relation between the burning of fossil fuels and its consequential unbalance of the carbon cycle and the increase of the greenhouse effect that follows it, causing a biosphere change with multiple deleterious effects, both on environments, species and life itself; understand how Darwin’s theory of Natural Selection explains the existence of different species of a being (such as lizards) in one same island; why, now in the Genetics area, a cell’s DNA is only visible during mitosis for being condensed, why “daughter cells”, in meiosis, all have unique genetic material, caused ...

Part A.

There has been at least a dozen various human like species since the earliest homid species split from the ancestral line the humans shared with the apes. This was approximately 6 to 8 million years ago. Most of these homid human like creatures are just relatives to the human beings and are not their ancestors. Humans are more closely related to modern apes like gorillas and chimps more they are to the monkeys. It is believed that humankind shares a common ancestry line with the African apes, like chimps and gorillas. And it is believed that this common line of ancestry ...

Miopithecus ogouensis – Gabon talapoin

The Gabon talapoin (Miopithecus ogouensis) is a small species of monkey found not only in Gabon but in other African countries including Angola, Congo, Cameroon and Equatorial Guinea. Its range includes the Ogooue River, after which it was named but extends to other riparian habitats from the equatorial forest zone south of the Sanaga River in southern Cameroon to other tributaries of the Congo River including the Lefini and Almira Rivers .
Although the monkey is listed as being of least concern in the IUCN Red List of Endangered Species , it is suffering significant wide-ranging habitat decline. Nowak has found ...

Introduction

While it is hard to expound on life’s origin, in biology, we have learned that evolution occurs when the original species of life forms or living organisms develop and experience changes and alterations as they adapt to their environment. Thus, life constantly transforms and results in variety or variation among species and population.

Species, Population and Variation (between populations)

Species is a group of living organisms of the same features that can reproduce and whose fertile offsprings can likewise reproduce and so on within and among that particular species; while population is a closely associated group of the same species living at a certain ...

Biodiversity is a result of various ecological and evolutionary processes. Derived from the words bios meaning life and diversity meaning variety, the term biodiversity refers to the variety of living organisms in the world, their diversity and a wide range of ecosystems in a specific area. Biodiversity addresses a variety of living beings available in the biosphere observed at three levels, which include genetic diversity, species diversity and ecosystem diversity . Genetic diversity refers to the variability among living beings belonging to a specific species. On the other hand, species diversity refers to the number of plant and animal species present in a specific region. Natural ...

Coevolution refers to the process through which two or more diverse species jointly or reciprocally affects each other’s evolution as well as development. It can also be defined as the change in the genetic composition of species in a reaction to the genetic modification in another species. The idea of coevolution is mainly considered as the reciprocal evolutionary change or modification of the interacting species. For instance, species C evolves, which results species D to evolve, which effects species C to evolve, then causes species D to evolve and the process repeats itself in that sequence. Many commentators usually ...

Introduction

The study explored the homological characteristics of 22 species. The organisms were human, pygmy chimpanzee, common chimpanzee, gorilla, orangutan, white-handed gibbon, macaque (Cercopithecine monkey), horse, bison, cat, dog, bird, bat, frog, rattlesnake, alligator, fish, whale, wolf, pig, bacteria, and cow. The species were categorized as mammals, reptiles, birds, fish, or amphibians. However, humans and apes were further classified as primates. Moreover, the research sought to determine whether the species share characteristics that link them to a common ancestor. The research hypothesis was that if the evolutionary path of the 22 organisms were traced, then a common ancestor would be observed.

Universal Genetic Code

The ...

- recognize and explain how the scientific method is used to solve problems
- make observations and discriminate between scientific and pseudoscientific explanations
- weigh evidence and make decisions based on strengths and limitations of scientific knowledge and the scientific method
- use knowledge of biological principles and the scientific method to ask relevant questions, develop hypotheses, design and conduct experiments, interpret results, and draw conclusions
Expectations: Please write in complete sentences with proper spelling and grammar. If a reference is used, cite it and provide a proper citation (http://owl.english.purdue.edu/owl/resource/560/01/).
Following this practice will help you ...

Species Conservation describes the process of undertaking preservation of a particular species of animal or plant which may be under threat of extinction or destruction. Species conservation is focused only on the individual species identified and not the other organisms within its habitat. Such species are usually identified through academic studies, alarm by individual stakeholders, environmental activists and nature lovers and sometimes the sense of loss that comes when there is a drastic change in the ecosystem.

These specific conservation efforts require a lot of resources and funding which the government may not be able to provide since individual species cannot take ...

Describe the process of transpiration in vascular plants

Similar to other living organisms, plants possess the capacity to regulate their internal atmosphere. Vascular plants scientifically known as tracheophytes possess conducting tissue which offers independence from a wet or dry environment. These plants have a multifaceted structure of tubes known as the vascular system to carry water and other important solutes. Phloem moves all through the plant as it conveys biological solutes in aqueous states in all direction. Reliant on the period and the plant's requirements, phloem can even alter its flow course.

Xylem originates at the root running via the stems and concludes at small pores known as stomata ...

The human race has harmed the very planet that they live on, through their activities, since the very start of civilization. Using the resources provided by nature to fulfill the needs of the human beings is not something that is the cause of concern, but the indirect intent of incriminating damage to the environment is what the main source of concern is. Some of the impacts of human activity involve the disruption of carbon cycle, the disruption of hydro (water) cycle, and the reduction of species diversity. The major impacts of human activity on the carbon cycle include the ...

Grizzly bears were listed in the of endangered species in 1975, because biologists were concerned that they were gradually approaching extinction. Ever since then, their count has increased from 200 to 600-1200 . This recovery of their numbers prompted the U.S Fish and Wildlife Service (USFWS) to take the decision of temporarily eliminating their name from the list. However, in 2009, a federal district court in Montana reversed the delisting, bringing the bears back to their protected status. The judge mentioned apprehensions that the USFWS had failed to consider the reduction in white bark pine nuts .
Despite the existence of ...

db Environmental Science
The Endangered Species Act (ESA) is thought to be a powerful legal tool to conserve biodiversity and recover endangered species from extinction. But, the law has several implementation flaws and seriously affects land management decisions (Rohlf, 1991). ESA mostly concentrates on protecting the individual species at risk rather than the whole biodiversity in the region. Further, the classification of endangered, threatened and recovered species is not very clear (Rohlf, 1991) i.e. sometimes a viable number of the organism might be recovered, but sufficient number of breeding pairs must be established to ensure complete recovery and delisting ...

Whilst the cumulative effects of global warming are as yet uncertain, what is known is that global warming will affect most of the species living on planet Earth, including cetaceans. Cetaceans are whales, dolphins and porpoises, and they inhabit most of the world’s oceans and some freshwater rivers and lakes in the equatorial zone. Evidence gathered over the last twenty to thirty years has shown that changes in the cetaceans’ habitat will impact on their range, behavior and sustainability. If the species is to survive, they must adapt to climate change. The following is a discussion of how ...

GEOGRAPHIC LOCATION

Ranthambhore Tiger Reserve (RTR) is situated at the junction of two very old mountain ranges, the Aravallis and the Vindhyas. Ranthambhore comprises of distinct areas with great conservation values. Prior to formation of Ranthambhore Tiger Reserve, these reserves were managed as hunting reserves. In 1955, a part of the forest was declared as Sawai Madhopur Wildlife Sanctuary (as a game reserve). In 1973, this area was notified as Ranthambhore Tiger Reserve, being one of the first nine Project Tiger reserves in India. The Reserve comprises of Ranthambhore National Park along with Sawai Mansingh Sanctuary and Keladevi Wildlife Sanctuary. Ranthambhore National Park ( ...

Introduction:

Understanding Russell’s theory of evolution must begin from the assessment of human activities as significant causative agents of evolutionary processes in all living things. History, according to the basic doctrine of this theory, is simply a manifestation of evolutionary processes in a sequential manner across time and space. Development, progress, and the perishing of plant and animal species are conceptualized as observable forces of the role of evolution in historical processes.

Discussion:

One of the central arguments developed by Russell in his evolutionary theory is that human actions and activities can and do occasion evolution (Russell, 54). Some of the activities ...

Introduction

The conservation of the environment is important so that humans, other animals, and other plant species may continue to thrive. Furthermore, in order to effectively conserve the environment, an in-depth knowledge in ecology is important. This paper will likewise focus on issues that concern ecologist such as species richness, habitat depletion, and climate change.

Body

Species Richness—Alpha and Gamma Diversity
There are millions of species that have already been discovered and a lot more are left unidentified. Species richness is basically the total count of species in a community and this is just one way to define biodiversity in ...

Summary Article

In the chosen article, Emma Rosenthal, highlights the intrusion of the invasive species, lionfish, into the Pacific and Indian oceans. Lionfish preys on small juvenile fish in the coral reefs and has very few predators, contributing to the population explosion of this rapidly breeding invasive species. The article underscores the problem of invasive species, which has disturbed the coral reef ecosystem and emphasizes on the benefits and potential hazards of human consumption of invasive species.
The article assists in understanding the course work related to ecosystem and communities. The invasive species such as lionfish growing in the coral ...

Since the introduction of the idea of natural selection, scientist Charles Darwin has had a profound impact on the understanding of the origin of species. However, opponents have contested this idea fiercely since its introduction due to spiritual beliefs and apparently contradictory evidence. Through his book River Out of Eden, author Richard Dawkins contests these challenges through new information and evidence. The principle of gradualism becomes central to Dawkins’ argument by not only providing proof of intermediate stages in order to refute the argument from personal incredulity but also by explaining the river of DNA.
The principle of gradualism ...

Exam questions

Anthropology refers to the study of human society, human nature, and human past. Therefore, it is essentially a scholarly discipline, which aims to give a description of what it means to be a human. This discipline is holistic meaning that its primary goal is to study the human kind as a whole, comparative meaning that comparative methods are employed in the study of the human behavior structure and development, field based, as well as evolutionary.
Anthropology is traditionally divided into 4 fields that include cultural anthropology, linguistic anthropology, archaeology, and biological anthropology. It is worth noting that all these fields are united ...

Introduction

Seagrass beds are amongst the most productive marine habitats and their wide-ranging distribution. They provide homes and food sources for many marine animals, prevent erosion and provide nurseries for many commercial and recreational fish species. Despite their importance to the environment, seagrass beds are increasingly being decimated by the results of human activities. The destruction of seagrass beds may have serious consequences on the biodiversity of coastal regions and as a consequence, may negatively impact on commercial and recreational fishing, and ultimately all marine species.

Description of Issue

Seagrasses are flowering plants that live in marine and estuarine habitats. They are rooted ...