The frequency of Patella vulgata has shown to be affected by different microhabitats. An experiment was taken to investigate the difference in limpet frequency at three different microhabitats at the middle shore – Rock pools, Under Rocks and on Top of Rocks. At each microhabitat six sites were investigated and the abiotic factors (temperature, humidity, wind speed and light intensity) were measured. It was found that Under Rocks had the highest frequency of limpets and Rock Pools had the lowest, this was because the limpets where sheltered from direct contact with sunlight and wind, so desiccation was less for limpets found under the rocks whereas in rock pools. The low frequency of limpets found in the rock pools was firstly due to the fact there was poor visibility so could not be sure of actual number of limpets and secondly there was less stable substrate for limpet to attach to in rook pools therefore was a main reason for low frequency of limpets. Consequently, there existed this significant difference between the frequencies of limpets at different microhabitats because of abiotic factors (abiotic components are non-living chemical and physical factors in the environment, such as light intensity, temperature and wind speed) being different. Introduction Limpets are a sessile species (Sessile animals are usually permanently attached to a solid substrate of some kind) which are abundant on rocky shores, as they are rich in algae (their primary food source) and spend most of their time clinging to hard substrates or bare rocks. They are capable of withstanding water velocities in excess of 20 ms−1 (Mark W. Denny and Carol A. Blanchette, 2000) which imposes large hydrodynamic forces on the limpet. Limpets can accomplish this b... ... middle of paper ... ...they affect water loss from animals and plants so affect where the limpet will live. The factors were measured with a CEM 4 in 1 Environment Meter (Light, Sound, Temp, Humidity Meter), which I got from a store which looked like this (http://www.digital-meters.com/humidity-c8/handheld-c58/cem-4-in-1-environment-meter-light-sound-temp-humidity-meter-cem-dt-8820-p61) Risk assessment: 1. Deep water and strong currents could lead to drowning. - stay away from the sea. 2. Slipping on seaweed/rocks - Suitable waterproof, well-fitting footwear worn. 3. Exposure to sun leading to sunburn – where sunscreen an appropriate clothing. 4. Disease from contaminated sediment – where gloves and cover any open wounds. The statistical test used was the Chi-Squared test as it measures for a statistically significant association between the frequencies of limpets at each microhabitat.
The purpose of this lab was to discover how diverse the parking lot at Bunker Hill High School could be, by finding out the Shannon Wiener biodiversity index of the parking lot. The parking lot was used because it does not have much immigration and emigration of the cars. Using an actual ecosystem in the wild would be hard to control, what is immigrating and emigrating out of the experiment. The experiment shows how diverse the cars were, and this can show how diverse an actual ecosystem was during that time of the experiment. This then tells that diversity does matters because if everyone had the same kind of car, then no one would be different. However, if the students, faculty, and guests had a variety of cars in the parking lot, which made the experiment more diverse in the parking lot or the community of cars.
this is due to the habitat they live in and the small number of people living
Wear many removable layers of clothing, and always be sure the outermost layer is 100% waterproof. Also, always wear goggles. Visibility and eye protection is very important.
not travel into deep ocean waters. They like calm, quiet waters to relax and eat.
affects the ecosystem. The land's incline prevents some areas to receive and maintain a water
If puffins are disturbed by humans they will leave their nests and will not come back. This has led to the extinction of puffin colonies in parts of the European coastline.
The Northern Sea is the deadliest sea in the world. Navigation in the sea is only possible for three months of summer. The other nine months of your life will be at risk and you may not even survive. Even the Native Eskimos don't travel during the nine-month period of deadly winter. They camp near the Big Land to avoid traveling to the Northern Sea.
Investigating the Effects of An Abiotic Factor on the Frequency and Distribution of a Freshwater Invertebrate
For both the monohybrid cross, and dihybrid cross chi-square tables were used to determine whether the deviation of the experiment was due to chance alone. The chi-square result for the monohybrid cross resulted in 6.53, ending up between .05 (X2= 5.991) and .01 (X2=9.210) with a degree of freedom of n=2 (3-1). This result leads to the rejection of the null hypothesis because there was only a 5% chance that the observations were due to chance alone. As for the dihybrid cross, the chi-square data resulted in 4.73 landing in between .20 (X2=4.642) and .05 (X2=7.815). This resulted in the null hypothesis being accepted since it is higher than .05.
The sea represents much more than a body of water that the speaker explores. The sea symbolizes the speaker’s conscious and subconscious memories. The sea holds the complete story and does not hide the unpleasant aspects. It is up to the speaker whether she genuinely wants to investigate. The speaker says, “it pumps my blood with power/the sea is another story/the sea is not a question of power” as she descends into the water (38-39). At this moment, the speaker realizes the significance of her decision to dive into the sea. She becomes ready to analyze and looked through her past, and deal with the
Those who do typically like to get the most out of their money and take advantage of all the opportunities on the islands. Surfing is popular lifestyle that society pairs with Hawaii. The near-shore waters that range from deep blue to turquoise are often tempting; however, many vacationers do not understand how dangerous Hawaii’s currents can be. Since Hawaii is located in the middle of the Pacific Ocean, the ocean bottom tends to drop off quickly, which causes big and powerful waves. Annually, sixty people drown or are seriously injured by the rip currents of the treacherous waters. Earlier this year, famous singer Britney Spears vacationed on the famous beaches of Hawaii. In a recent interview, so revealed she almost drowned at sea. “I went out and I thought it was like a wave pool, and I thought, ‘This is so nice and refreshing,’ but the thing I didn’t think about is when you come back the waves really come in strong.” Spears got sucked in and kept getting pulled back to sea. She was under for about five minutes before one of her security guards noticed she was struggling and was able to rescue her (Bacardi). A majority of the beaches fly a red warning flag year-round to warn beachgoers of the hazards. If one does find himself trapped in the middle of a current, it’s important to remain calm. Do not try to swim against the tide. Instead, swim parallel to the beach until the current
said, “Every time you dive, you hope you'll see something new - some new species. Sometimes the ocean gives you a gift, sometimes it doesn't.” As you are swimming under the ocean, imagine the sparkle of the water as you look up the surface from a hundred feet below; floating along with the current, slowly and deeply breathing while observing the sea life. Continue to imagine the ability to remain underwater for an hour or more, just swimming and observing the ocean. This is the life of a scuba diver. Many people think of Scuba Diving as a swim in the water, but in reality it is a very dangerous, and potentially fatal sport and activity. There are many types of Scuba
NOAA, Office of Ocean Exploration and Research. Technical Diving. 24 Feb 2006. Web 12 Jul 2010. http://oceanexplorer.noaa.gov/technology/diving/technical/technical.html
About 800 children die in the United States every year due to drowning. A child can die from drowning due to many reasons such as, but not limited to, lack of swimming ability, barriers and close supervision, and seizure disorders. One of the most common causes of children drowning, however, is incorrect use of floatation devices. While coast guard approved life jackets are indeed safer than arm floaties, neither are adequate replacements for adult supervision and a swimming ability. More often than not floatation devices are harmful to the child in question, and that is why floatation devices should not be used with young children.
This paper’s focus will be on the Saddle-back Rodrigues Giant tortoise. This species of tortoise are the same as other tortoises with the exception of it being prevalent to the Rodrigues Island. Like most saddlebacks the tortoises of Rodrigues live in parched lands and have long legs and necks that they use in order to reach food that are spread out and hard to reach. In comparison to their