Nobody downloaded yet

ECOLOGY: Sex Determination in Reptiles - Research Paper Example

Comments (0) Cite this document
Date: Sex Determination in Reptiles Sex is genetically determined in humans however it is not the same with all other animals. This is a significant phenomenon of biological evolution and affects not only the individual but also the species as a whole…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER96.6% of users find it useful
ECOLOGY: Sex Determination in Reptiles
Read TextPreview

Extract of sample "ECOLOGY: Sex Determination in Reptiles"

Download file to see previous pages The latter has been of more interest and is largely seen as among the reptilian population. TSD mechanisms helps to maintain a balance between the male and the female population i.e. it helps maintain a constant ratio between the genders, which is optimum for the species. Temperature plays a role during the incubation period of the eggs. TSD shows certain patterns when it comes to temperature. In pattern 1a, low temperature gives 100% males and high temperature gives 100% females, in pattern 1b, low temperature gives 100% females and high temperatures gives 100% males while in pattern II low and high temperature yields predominantly females while intermediate temperature yields male population (Pieau et al, p517). Therefore the theme that comes to mind is the effect that climate change has had or might have on this particular sex determination mechanism. From an ecological point of view human induced disturbances have initiated and accelerated the rate of global warming however the concept of ecosystem and species resilience forms the basis of survival because in spite of the stress and disturbances a species or an ecosystem give rise to functional diversity and response diversity. Even today reptiles are changing their behavioral and nesting patterns to overcome the climatic changes around. The first reptiles that come to my mind when I think about the theme are the Dinosaurs. However most researchers believe dinosaurs being cold blooded were wiped out as they could not bear the changes in temperature. However according to most recent research it is being said that dinosaurs were hot blooded (Seymour, p1), which means the change in temperature might not have had directly impacted the population therefore I would like to add a different concept connecting sex determination and extinction of all the dinosaur species. Since it has been proven that most reptiles follow one of the three patterns of temperature dependent sex patterns, it is obvious that dinosaur sex was determined when the egg were in their critical stage during embryonic development of incubation period. One of the key reasons behind Dinosaur extinction in the Cretaceous period must have been changes in the temperature. So there are 2 possibilities that come to my mind. It is obvious that exposure to temperature changes altered the ratio of the male-female population of the dinosaurs and the changes in the nest temperature must have given rise to population of either predominantly male or predominantly female without any balance between the two genders. Gradually, one of the genders was totally wiped out and the dinosaur population survived as only an all-male population or an all-female population which upsets the developmental biology of that particular species as no offsprings are born. With time the remaining population of the species also died leading to extinction and removal of dinosaurs from the earth. This phenomenon is being seen in painted turtles. Nests of these turtles have been studied and it was seen that the hatchlings were mostly of one gender. If the current rate of temperature changes continue it is predicted that the turtle species would be wiped out since it would contain only an all-female population. Another line of thought connecting TSD and extinction may also be derived. If climate change produced female dinosaurs and male dinosaurs but the ratio was highly imbalanced intra-specific competition must have set in owing to which many of the competitors perished. Gradual ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“ECOLOGY: Sex Determination in Reptiles Research Paper”, n.d.)
Retrieved from
(ECOLOGY: Sex Determination in Reptiles Research Paper)
“ECOLOGY: Sex Determination in Reptiles Research Paper”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF ECOLOGY: Sex Determination in Reptiles


...for each squirrel. In addition, it became evident that a relationship exists between the behavioral transitions. From the analysis, the behavioral changes appeared to be the results of chance and were very random. The highest transition frequency was between the food searching behavior and food handling. The lowest frequency occurs in vigilance behavior and food searching. The animals must strive to strike a balance between safety precautions and food searches. For the balance to occur, squirrels have to set the priorities right. It is critical for them to determine when the urgency for security must surpass the urgency for food. Introduction The Eastern Gray squirrel’s main habitat is the eastern North America and parts...
7 Pages(1750 words)Research Paper


...? LOCAL ECOLOGY (Alexandria, VA, USA) of (affiliation) LOCAL ECOLOGY The of Alexandria is located in the Commonwealth of Virginia, which is along the west side of the Potomac River. It is a high-income city due to its proximity to Washington, D.C. where many federal agencies and offices are located. Its population is only about 147,000 which translate to a population density of approximately 9,400 people per square mile. Its total area is 15.4 square miles (15.2 sq. miles of land and 0.2 sq. miles of water); Alexandria is a very historic place because of the key role it played during the American Civil War. Alexandria was declared an Eco-City in 2008, which means its inhabitants have promised to use the...
3 Pages(750 words)Essay

Northern Ecology

...Northern Ecology INTRODUCTION Tundra is an ecology which is characterized by extremely low temperatures discouraging the growth of vegetation. There are three main types of tundra, the arctic, antarctic, and the alpine tundra. The arctic tundra is in the northern hemisphere and consists of completely frozen soil and oceans. In addition to the harsh climatic conditions, the region located in the far end of the world experiences irregular patterns of sunlight with certain seasons being compeletly dark for several months. The lack of vegetation is also due to cold winds that characterize the region. This results in a unique ecological system inhabited by exclusive organisms adapted for...
7 Pages(1750 words)Essay

Ecology New York where skyscrapers proliferate just like mushrooms in a rainy season. Seen this way, the level of sacrifice that is poured in by the couple is too much to think about and do. They were living against the norm but they persisted for a cause. It is very humbling to realize that their struggle is not directed towards personal achievement but a witnessing: it was the intention of Beavan and his wife to prove to the world that every person can do something, in his own simple ways, to control the exacerbation of the ecological domain and to mitigate the effects of global warming and climate change. By and large, what makes the documentary more convincing is that they gave up everything to become full-pledged...
5 Pages(1250 words)Essay

Ecology important part in determining the natural balance of gases in a country's atmosphere. b. What conclusions, if any, can you draw from your observations Although global warming is a universal problem, U.S. and UK has much more control over it because there industrial areas are situated in specific regions and they have the power to reduce their acid rain causing agents. 2. In Asia, China burns a lot of coal for heating and electrical generation. Now look at the map of Asia below. a. What countries do you think could be having problems with acid rain originating in China A. China's ennvironmental capacity for the pollutants of coal burning have far exceeded the safe level. Hence, the countires having problems due to...
2 Pages(500 words)Essay


...Introduction to Ecology Warm air has the capability of containing more moisture than cool air hence the less dense air which is low in atmosphere would rise, expand and then cool at 100C for every 1000m as observed by Molles (2009). The cooled air loses the ability to hold any more moisture and condenses to water droplets forming clouds. On the other hand, when it descends, the air warms and dries. The heat from the sun is distributed unevenly across the surface of the earth with tropical and equatorial regions receiving more solar than the polar and mid-latitude regions. Near the equator, the incoming sunlight tends to be vertically inclined to the ground causing greater heating than near the poles where the inclination...
1 Pages(250 words)Essay

Social Ecology

...Social Ecology The passage criticizes the arguments of Holmes Rolston about conserving the environment and responding to the population growth. The author, Robin Attfield contends that preserving the environment is right. However, he differs with arguments of Holmes Rolston on the best way to preserve the ecosystem. Holmes holds that conserving ecosystem should take the first priority over the interest of humans (Attfield 292-297). Holmes feels that people should starve, raise limited children, and preserve vast lands for the natural reserves. In addition, he human beings should not take the first priority over the natural ecosystem (Attfield 292). The arguments of Holmes favor natural ecosystems. However, the author of...
1 Pages(250 words)Essay


...Exploring the Effects of Crop Rotation in Non-sugarcane Growing Years on Local Egret Populations Affiliation Author note with more information about affiliation, research grants, conflict of interest and how to contact Exploring the Effects of Crop Rotation in Non-sugarcane Growing Years on Local Egret Populations Introduction: Ecosystem is defined as a “dynamic complex” of living things like plants, animals, microorganism and non-living environment interacting with each other as a functional unit, where humans are considered as the most essential element (2- Ecosystems and Their Services, n.d., p. 49). Change is a “constant process” happening in an ecosystem caused by natural forces, which include climatic changes,...
8 Pages(2000 words)Essay


...1. Calculate the average relative rate of population change, [N(t N(t N(t), and its standard deviation from the population data for the southern resident population of the killer whale, British Columbia, Canada. Bolded Values to be calculated by the student Year Reproductive females Births Fecundity Total deaths Total population Growth rate 1974 19 2 0.105 2 73   1975 19 1 0.053 1 73 0.0000 1976 20 8 0.400 0 73 0.0000 1977 21 2 0.095 1 81 0.1096 1978 18 3 0.167 2 82 0.0124 1979 17 3 0.176 1 83 0.0122 1980 16 1 0.063 3 85 0.0241 1981 16 1 0.063 4 83 -0.0235 1982 16 0 0.000 2 80 -0.0362 1983 19 3 0.158 5 78 -0.0250 1984 21 5 0.238 3 76 -0.0256 1985 23 7 0.304 2 78 0.0263 1986 25 4 0.160 1 83 0.0641 1987 24 1 0.042 1 86 0.0362... Calculate...
1 Pages(250 words)Case Study

Sex Determination and Development

...Sex Determination and Development Summary Genetics and Society 12-8 Sali Aljehani   Sex Determination and Development Sex determination and development starts from the smallest building organism which is known as the cells. These are basic building blocks that are in trillions in the body and form the basis of body organs and human structure. Among the cell structure is the existence of chromosomes which forms human body nucleus. In them is the sex chromosomes which are paired into X and Y or Y and Y and are the determinant of the child’s sex depending on their combination after...
1 Pages(250 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Research Paper on topic ECOLOGY: Sex Determination in Reptiles for FREE!

Contact Us