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module 4 - Notes Milenge
... Hotspot of Biodiversity: The term hotspot was introduced by Myers(1988). These are areas which exhibit high species richness as well as high species endemism are termed as hot spots of biodiversity. To qualify as a hotspot, a region must meet two strict criteria: it must contain at least 1,500 speci ...
... Hotspot of Biodiversity: The term hotspot was introduced by Myers(1988). These are areas which exhibit high species richness as well as high species endemism are termed as hot spots of biodiversity. To qualify as a hotspot, a region must meet two strict criteria: it must contain at least 1,500 speci ...
Lesson Description
... SIS1. Make observations, raise questions, and formulate hypotheses. Pose questions and form hypotheses based on personal observations, scientific articles, experiments, an SIS2. Design and conduct scientific investigations. Articulate and explain the major concepts being investigated and the pur ...
... SIS1. Make observations, raise questions, and formulate hypotheses. Pose questions and form hypotheses based on personal observations, scientific articles, experiments, an SIS2. Design and conduct scientific investigations. Articulate and explain the major concepts being investigated and the pur ...
LESSON Protecting Biodiversity
... protect wildlife, but also bring in money from researchers and ecotourists. A more direct economic approach is the debt-for-nature swap. Here, a conservation organization raises money and offers to pay off a portion of a developing nation’s international debt in exchange for a promise by the nation ...
... protect wildlife, but also bring in money from researchers and ecotourists. A more direct economic approach is the debt-for-nature swap. Here, a conservation organization raises money and offers to pay off a portion of a developing nation’s international debt in exchange for a promise by the nation ...
Community and ecosystem diversity
... approaches proved successful in boreal and temperate areas (e.g. Sønstebø et al. 2010). Although warm tropical regions are much less favorable for DNA preservation, pilot studies should be ...
... approaches proved successful in boreal and temperate areas (e.g. Sønstebø et al. 2010). Although warm tropical regions are much less favorable for DNA preservation, pilot studies should be ...
module 4 4.2.1 biodiversity
... and grows. It is essentially the environment – at least the physical environment – that surrounds (influences and is utilised by) a species population. ...
... and grows. It is essentially the environment – at least the physical environment – that surrounds (influences and is utilised by) a species population. ...
Invasive Species - Honors PowerPoint Invasive_species
... What is biodiversity? Discuss. Biodiversity = #of species in an ecosystem “Stable” ecosystems have relatively constant biodiversity over time How do invasive species affect biodiversity? Discuss Invasive species can decrease biodiversity less stable (big problem) Invasives “do better” than native ...
... What is biodiversity? Discuss. Biodiversity = #of species in an ecosystem “Stable” ecosystems have relatively constant biodiversity over time How do invasive species affect biodiversity? Discuss Invasive species can decrease biodiversity less stable (big problem) Invasives “do better” than native ...
Principles of ecology
... Age structure – helps to predict if a population is growing rapidly Immigration – movement into a population Emmigration – movement out of a population ...
... Age structure – helps to predict if a population is growing rapidly Immigration – movement into a population Emmigration – movement out of a population ...
Ecology Test
... Phosphates are released from rocks from weathering and erosion. Phosphates are then absorbed by plants and transferred to other organisms through feeding relationships. When organisms die, their bodies are fossilized over a long period of time back into rocks. ...
... Phosphates are released from rocks from weathering and erosion. Phosphates are then absorbed by plants and transferred to other organisms through feeding relationships. When organisms die, their bodies are fossilized over a long period of time back into rocks. ...
ppt - eweb.furman.edu
... - Fewer novel plant species invaded higher diversity treatments because of their lower soil NO3 levels, greater neighborhood crowding and competition, and greater chance that functionally similar species would occur in a given neighborhood (Figs 3; Naeem et al. 2000, Kennedy et al. 2002, Fargione et ...
... - Fewer novel plant species invaded higher diversity treatments because of their lower soil NO3 levels, greater neighborhood crowding and competition, and greater chance that functionally similar species would occur in a given neighborhood (Figs 3; Naeem et al. 2000, Kennedy et al. 2002, Fargione et ...
BIO 1C Study Guide 3: short distance flow, xylem and phloem flow
... What type of system energetics would predict long food chain length (high energy input)? Food chains are energy limited – 4-7 links is about max. What kind of food chain is most unstable (long)? Why? What is a sere? What are the general characteristics of organisms that form early successional seres ...
... What type of system energetics would predict long food chain length (high energy input)? Food chains are energy limited – 4-7 links is about max. What kind of food chain is most unstable (long)? Why? What is a sere? What are the general characteristics of organisms that form early successional seres ...
3) Aliens-L
... Information about impacts caused elsewhere (e.g. predation, competition, hybridisation, etc) can be used IAS + exposure of native biodiversity impacts Biodiversity Impacts caused by IAS will be different from one area to another It will usually not be possible, nor should it be required, to predic ...
... Information about impacts caused elsewhere (e.g. predation, competition, hybridisation, etc) can be used IAS + exposure of native biodiversity impacts Biodiversity Impacts caused by IAS will be different from one area to another It will usually not be possible, nor should it be required, to predic ...
Schoolyard Ecology
... similar proportions of all species then evenness is one, but when the abundance are very dissimilar (some rare and some common species) then the value increases. ...
... similar proportions of all species then evenness is one, but when the abundance are very dissimilar (some rare and some common species) then the value increases. ...
Clicker Review
... the food chain and worked its way up, resulting in higher concentrations. This is known as A. adaptation B. eutrophication C. biomagnification D. natural selection [Default] [MC Any] [MC All] ...
... the food chain and worked its way up, resulting in higher concentrations. This is known as A. adaptation B. eutrophication C. biomagnification D. natural selection [Default] [MC Any] [MC All] ...
Unit 2 Ecology Chapter 2 – Principles of Ecology Chapter 2 Voc
... a. They compete for the same resources (food, water, mates, etc.) b. Competition is high when resources are low; some species have adaptations to reduce competition 2. Communities are made up of interacting populations in a certain area a. Changes in one population may cause changes in another popul ...
... a. They compete for the same resources (food, water, mates, etc.) b. Competition is high when resources are low; some species have adaptations to reduce competition 2. Communities are made up of interacting populations in a certain area a. Changes in one population may cause changes in another popul ...
US Geological Survey
... drive population dynamics by causing cycles in population sizes. An increase in the population size of prey creates more food for predators, which may survive and reproduce more effectively as a result. As the predator popl rises, additional predation drives down the popl of prey. Fewer prey in turn ...
... drive population dynamics by causing cycles in population sizes. An increase in the population size of prey creates more food for predators, which may survive and reproduce more effectively as a result. As the predator popl rises, additional predation drives down the popl of prey. Fewer prey in turn ...
Science 9 Unit A - Biological Diversity BIODIVERSITY
... there is more sunlight and water available. Conservative estimates of the number of species on Earth range from 5 to7 million but some scientists estimate as many as 30 million! With only about 1.6 to 2 million of these species having been studied (many only at the most basic level) and given a name ...
... there is more sunlight and water available. Conservative estimates of the number of species on Earth range from 5 to7 million but some scientists estimate as many as 30 million! With only about 1.6 to 2 million of these species having been studied (many only at the most basic level) and given a name ...
Unit 10: Ecology
... The niche of a population is defined as (a) Set of condition that interacts (b) Place where it lives (c) Set of conditions and resources (d) Geographical area that it covers Which one of the following is one of the characteristics of a biological community? (a) Stratification (b) Natality (c) Mortal ...
... The niche of a population is defined as (a) Set of condition that interacts (b) Place where it lives (c) Set of conditions and resources (d) Geographical area that it covers Which one of the following is one of the characteristics of a biological community? (a) Stratification (b) Natality (c) Mortal ...
biodiversity activity
... 12. Base on your knowledge of the flow of energy in ecosystems, what community or species interaction most likely exists between the more abundant and less abundant insect species? Explain. ...
... 12. Base on your knowledge of the flow of energy in ecosystems, what community or species interaction most likely exists between the more abundant and less abundant insect species? Explain. ...
ch10_sec3
... • Under the fourth main provision of the Endangered Species Act, the USFWS must prepare a species recovery plan for each listed species. These plans often propose to protect or restore habitat for each species. • However, attempts to restrict human uses of land can be controversial. Real-estate deve ...
... • Under the fourth main provision of the Endangered Species Act, the USFWS must prepare a species recovery plan for each listed species. These plans often propose to protect or restore habitat for each species. • However, attempts to restrict human uses of land can be controversial. Real-estate deve ...
Paper - OECD.org
... The Red List Index (RLI) is not used in the Living Planet Report, but worth mentioning as a well-developed indicator with some global-level time-series data. The RLI is a relatively new indicator which tracks the changes in threat status, as recorded in the IUCN Red List of Threatened Species, acros ...
... The Red List Index (RLI) is not used in the Living Planet Report, but worth mentioning as a well-developed indicator with some global-level time-series data. The RLI is a relatively new indicator which tracks the changes in threat status, as recorded in the IUCN Red List of Threatened Species, acros ...
Species Concept
... August 20 – the day when the world has used as much of Earth’s resources as Earth can replace in one year. ...
... August 20 – the day when the world has used as much of Earth’s resources as Earth can replace in one year. ...
Chapter 4 Notes
... a. Biomes are large regions with distinct climates and certain species that are adapted to them. Individuals Matter: E.O Wilson has been a large influence on conservation efforts. His early work included discovering how ants communicate and developing the theory of island biogeography. SCIENCE FOCUS ...
... a. Biomes are large regions with distinct climates and certain species that are adapted to them. Individuals Matter: E.O Wilson has been a large influence on conservation efforts. His early work included discovering how ants communicate and developing the theory of island biogeography. SCIENCE FOCUS ...
Biodiversity
Global Biodiversity is the variety of different types of life found on Earth and the variations within species. It is a measure of the variety of organisms present in different ecosystems. This can refer to genetic variation, ecosystem variation, or species variation (number of species) within an area, biome, or planet. Terrestrial biodiversity tends to be highest near the equator, which seems to be the result of the warm climate and high primary productivity. Biodiversity is not distributed evenly on Earth. It is the richest in the tropics. Marine biodiversity tends to be highest along coasts in the Western Pacific, where sea surface temperature is highest and in the mid-latitudinal band in all oceans. There are latitudinal gradients in species diversity. Biodiversity generally tends to cluster in hotspots, and has been increasing through time but will be likely to slow in the future.The number and variety of plants, animals and other organisms that exist is known as biodiversity. It is an essential component of nature and it ensures the survival of human species by providing food, fuel, shelter, medicines and other resources to mankind. The richness of biodiversity depends on the climatic conditions and area of the region. All species of plants taken together are known as flora and about 70,000 species of plants are known till date. All species of animals taken together are known as fauna which includes birds, mammals, fish, reptiles, insects, crustaceans, molluscs, etc.Rapid environmental changes typically cause mass extinctions. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described. The total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037, and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon).The age of the Earth is about 4.54 billion years old. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era after a geological crust started to solidify following the earlier molten Hadean Eon. There are microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. Other early physical evidence of a biogenic substance is graphite in 3.7 billion-year-old metasedimentary rocks discovered in Western Greenland. Since life began on Earth, five major mass extinctions and several minor events have led to large and sudden drops in biodiversity. The Phanerozoic eon (the last 540 million years) marked a rapid growth in biodiversity via the Cambrian explosion—a period during which the majority of multicellular phyla first appeared. The next 400 million years included repeated, massive biodiversity losses classified as mass extinction events. In the Carboniferous, rainforest collapse led to a great loss of plant and animal life. The Permian–Triassic extinction event, 251 million years ago, was the worst; vertebrate recovery took 30 million years. The most recent, the Cretaceous–Paleogene extinction event, occurred 65 million years ago and has often attracted more attention than others because it resulted in the extinction of the dinosaurs.The period since the emergence of humans has displayed an ongoing biodiversity reduction and an accompanying loss of genetic diversity. Named the Holocene extinction, the reduction is caused primarily by human impacts, particularly habitat destruction. Conversely, biodiversity impacts human health in a number of ways, both positively and negatively.The United Nations designated 2011–2020 as the United Nations Decade on Biodiversity.