Hystricognatha and family Erethizontidae. The species has arboreal habit‚ it is medium-sized and endemic to Atlantic Forest. Its coverage area runs from southern state of Sergipe to north of state of Rio de Janeiro. Once considered abundant‚ but because of change and reduction of its natural environment and hunting‚ this rodent population is in decline. This framework made it to feature as "Vulnerable" species on the official list of Brazilian fauna extinction Threatened (Brazil‚ 2008) and the Red List
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LAB #3 TITLE: SPECIES DIVERSITY AIM: To determine how moisture content of sand influences the distribution of fauna along a sandy beach. MATERIALS: 100m transect‚1m x 1m quadrat‚shovel‚30cm ruler‚40cm x40cm sieve‚ digital probe‚ sweep net PROCEDURE: 1. The area was selected for the 100m transect to be laid. 2. The transect was carefully placed ensuring that the end of the transect was in the moist part of sand. 3. The quadrat was placed along the transect on either sides. 4
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Introduction: About 65 mya almost three quarters of the animal and plant species on earth went extinct. This mass extinction is known as the Cretaceous-Paleogene (K-Pg) extinction event. The Cretaceous was the last period of the Mesozoic Era which is when dinosaurs lived from about 250 to 65 mya and the Paleogene is the first period of the Cenozoic Era that started about 65 mya which is the Era that we are currently living in. So the extinction event marked the end of the Cretaceous period and the beginning
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Safety-Lock Syringe I feel that the theory of Due Care is most appropriate to apply to this case. My reason for this is because Becton Dickinson’s decision first to not look in to a redesign of their original syringe and their decision to not manufacture the Safety-Lock Syringe for all sizes but only the 3-cc syringe violated the fact that they had a duty to take special care to ensure that consumer’s interests are not harmed. The basis of the Due Care Theory is that the manufacturer is in a more
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Some people believe that the earth is being harmed by human activity. Others feel that human activity makes the earth a better place to live in. What is your opinion ? First‚ human activity causes many kinds of animals and plants to disaster. Today many species of living beings died or near died out. We only can see some animals in the zoo because in nature they have disappeared. Human beings have been using their brains and machines to remake nature for many thousands of years. We use
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is what florida is like now. It’s like this because people let their pet snakes go into the wild and then there are way too many snakes in the wild. Snakes are not the only invasive species there are others like foxes and medfly. Invasive species are a problem‚ but creative solutions are being tested. Invasive species can take over areas of the earth‚ and make it hard for other animals to survive. In Australia they have foxes‚ which are an invasive specie. Foxes are trying to kill penguins‚ because
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Abstract Located in tropical ocean waters‚ coral reefs provide priceless resources to both human and marine life. The leading natural cause of destruction among the coral reefs is global warming. Other natural causes are earthquakes‚ hurricanes‚ cyclones‚ and typhoons. The destruction to the coral reefs from these natural disasters is minimal compared to the dangers caused by man. Man-made destruction has a much wider impact on the health of the coral reefs. This destruction includes over-fishing
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Exotic plant invasions are causing profound changes to ecosystems around the world. However‚ it is difficult to generalise about their effects on ecosystem properties‚ since these vary according to the traits of the invading species‚ and the properties of the invaded vegetation and habitat. Yet‚ knowing the inherent functional traits of an exotic invasive plant could improve understanding of its invasion success and impact‚ since plant traits affect ecosystem properties such as through fall distribution
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technology has advanced like never before. Science is basically a way of knowing but in P.B. Medawar’s words‚ “The art of the soluble.” Science has explanations to several unusual activities throughout the world that had taken place even before mankind existed and their research still goes on. The study on the extinction of dinosaurs is a timeless study but nowadays the young generation who go to college are not that interested in these studies. Stephen Jay Gould argues that‚ “science is a fruitful
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In the book The Sixth Extinction the author Elizabeth Kolbert writes about the major problem our planet is facing. Humans are causing a new mass extinction. There have been five major mass extinctions in the past. Unlike the others this extinction is caused by humans. It is occurring at incredibly fast rate because of the climate change. She also mentions how increased hunting in the bird the great auk caused them to eventually die off. This book is about the negative human impact on this planet
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