Biology Notes: Threats to biodiversity in MA 1. Climate change: temp‚ sea levels‚ precipitation 2. Non climate threats such as habitat loss‚ habitat fragmentation‚ and invasive species and air and water pollution Fragmentation: often due to man (dams‚ roads‚ and general development) Elements of biodiversity: Species‚ ecosystems & landscapes Mammals from bats to bears Bats got the white nose fungus which caused the bats to die and the insect population flourished because the bats main job
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Of all the species that have existed on Earth 99 percent have gone extinct and even fewer make it into the fossil record and a very small fraction of those that fossilize are actually found even partially complete. Even if all of them did fossilize many would be too hard dig for many of them. And also it is highly unlikely that most would be found complete‚ due to the number of natural disasters and processes that have happened from the animal’s death to whenever it is discovered. Natural disasters
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The Asiatic lion (Panthera leo persica)‚ also known as the Indian lion‚ is a lion subspecies that exists as a single isolated population in India’s Gujarat State. It is listed as Endangered by IUCN based on the small population size.[1] The lion population has steadily increased in Gir Forest National Park‚ more than doubling from a low of 180 individuals in 1974 to a level of 411 individuals consisting of 97 adult males‚ 162 adult females‚ 75 sub-adults‚ and 77 cubs as of April 2010.[3] The Asiatic
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Amphibians are becoming a vanishing species. There are a number of causes for them dieing. But the most recent and worst cause has been discovered. It is responsible for killing off our amphibians. They are dieing by the thousands. They were able to survive and hold on through past extinction spasms‚ surviving even when 95 percent of other animals died out. They even stayed alive when the dinosaurs disappeared. If amphibians could live longer than dinosaurs‚ then why are
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The Scarlet Letter Response to Literature chapters 16-24 Several days later Hester meets Dimmesdale in the forest and Pearl is now seven. Pearl continues to inquire persistently about Hester’s past‚ the scarlet letter and the minister. Hester sends Pearl off to play so that she can talk with the clergyman alone. Hester reveals Chillingsworth true inducements with the minister and Hester begs for forgiveness and is forgiven. The two also infer about leaving Boston and escaping on a boat to Europe
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AP Biology Name: Chapter 51 Guided Reading 1. How do behavioral ecologists define behavior? Behavioral ecologists define behavior as everything an animal does and how it does it 2. What is the focus of: a. Proximate questions of behavior? Focuses on the environmental stimuli‚ if any‚ that trigger a particular behavioral act‚ as well as the genetic‚ physiological‚ and anatomical mechanisms underlying it. b. Ultimate questions of behavior? Focuses on the evolutionary significance
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Section 1 1. Define mutualism and commensalism. Mutualism- Both are benefited Commensalism- One benefits the other doesn’t care. 2. Give examples of mutualism. Oxpeckers (a type of bird) and Zebras‚ the Oxpecker picks ticks and parasites off of the Zebra. The oxpecker gets food and the Zebra gets pest control. 3. Explain why most parasites do not kill their host. Why is it in their own best interest to keep their host alive? If a parasite kills its host the parasite will most likely die too Section
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Loss of Species Every year a new species gets placed on the endangered species list‚ extinction is a natural process but due to human activity there has been a rapid decline in the wild species population. Loss of habitat or alteration‚ hunting‚ introduction of foreign species‚ and disease are major culprits in the extinction rate. The protection of species is an important element to the survival of biodiversity as well as human sustainability. The loss of a species means humans will lose out
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4/10/11 James Ross Aftermath of the Invasion The introduction of invasive species into new environments is a problem that plagues the entire planet. Humans have been moving species around the world and introducing them into new environment for millennia. Many introduced species become invasive‚ disrupting ecosystems and threatening the survival of other species‚ sometimes driving them to extinction. Some invasive species‚ including some insects‚ seem to thrive particularly well in already degraded
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1.1 Outline the health and safety policies and procedures of the work setting Health and safety legislations and policy aim to make sure that the workers‚ children‚ young people and families are safe and protected from harm when at work or using different services. You do not need to be an expert in this area‚ but you will need to be aware of the legal issues and national and local guidance which relates to health and safety and also to know where to go and who you should ask when you need advice
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