Ingles especies en extincion
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An endangered species is a native species that faces a significant risk of extinction in the near future due to threats caused by human activity. Habitat destruction, introduction of exotic species, overexploitation, disease, and pollution are some of the main causes of endangerment. While governments and conservation groups are working to save endangered species, more widespread public awareness and involvement is needed to help protect vulnerable plants and animals.
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Gabi, Sergio and Cañete. 3rd
The document discusses several key threats to species conservation: 1) species extinction which is largely caused by human activity that destroys habitats or uses elements of the environment, 2) poaching which kills many animals and accelerates extinction, 3) habitat destruction by human acts or disasters that impacts animal lives, 4) invasive species that humans move to new areas causing harmful ecological changes, and 5) endangered species such as pandas, foxes, and whales that are becoming rare to find. The group believes conservation is an important but difficult challenge for humanity going forward.
Extinction
Extinction refers to the end of a species or group of organisms. A species goes extinct when no living individuals remain. Extinction can occur through natural causes like climate change or competition, or through human activities like habitat destruction and overhunting. Mass extinctions where many species die out simultaneously have occurred throughout history, including five major events in Earth's past. Scientists estimate that human activities are currently driving extinction rates 100 to 1000 times higher than the natural background rate, and up to half of all species could be extinct by 2100 if trends continue.
Extinction of biodiversity
The document discusses extinction and biodiversity loss. It defines extinction as occurring when the last member of a species dies. The passenger pigeon is provided as an example, with the last one dying alone in a zoo in 1914 after the species was already functionally extinct in the wild. Major causes of extinction discussed include habitat degradation and destruction from human activities like pollution, climate change, and overpopulation. Statistics are given on current extinction rates from human impacts being 1500 times the natural rate, with many species projected to be lost in the coming centuries if trends continue. The major impacts of biodiversity loss on human concerns like medicine, agriculture, ecosystem services, and moral obligations are also briefly touched on.
Species Extinction- Reasons and Effects?
In biology and ecology, extinction is the termination of an organism or of a group of organisms normally a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost at this point.
Biodiversity and evolution
BIODIVERSITY AND EVOLUTION
POPULATION
IMPORTANT ASPECTS OF POPULATION
BIRTH- Natural process in which parents give rise to new offspring.
DEATH- Reduces the number of existing individuals in a population.
MIGRATION- Movement of individuals into or out of the population.
IMMIGRATION- Movement of individuals into the population.
EMIGRATION- Movement of individuals out of the population.
PATTERNS OF POPULATION GROWTH
BIOTIC POTENTIAL- Maximum reproductive capacity of an organism given that the resources are unlimited.
EXPONENTIAL GROWTH- Capacity of a population to increase continuously without showing any signs of stabling or declining.
FACTORS THAT AFFECT POPULATION GROWTH OR SIZE
LIMITING FACTORS
-control the growth, size, and distribution of organisms
COMPETITION
ABIOTIC FACTORS
PREDATOR-PREY RELATIOSHIP
POPULATION DENSITY
EXTINCTION
Some famous mass extinction events
Causes of Extinction
Endangered ,Rare & Extinct Species
The document discusses endangered, rare, and extinct species. It provides definitions for each term: endangered species face a high risk of extinction, rare species have populations of fewer than 10,000 individuals, and extinction occurs when the last member of a species dies. The document notes that over 40% of all living species are at risk of extinction due to threats like habitat loss, invasive species, disease, and climate change. It lists several examples of endangered animal species according to the IUCN Red List.
Extinction
Local, ecological, and biological extinction are defined. Population genetics and limited geographic range increase extinction risk, while habitat degradation from agriculture, urbanization, and other human activities is currently the main cause of species extinction. Introduction of new competing species and climate change further threaten biodiversity by causing extinctions, while conservation efforts aim to protect endangered species and ecosystems.
Chapter 4 biodiversity
The document discusses the importance of biodiversity, which includes genetic diversity within species, species diversity between organisms, and ecosystem diversity of different biomes. It notes that species diversity is vital for sustaining life on Earth as it provides pollination, natural pest control, soil renewal and other important biological and chemical processes. However, human activities like habitat destruction have increased extinction rates and threaten biodiversity by eliminating species prematurely.
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Gabi, Sergio and Cañete. 3rd
The document discusses several key threats to species conservation: 1) species extinction which is largely caused by human activity that destroys habitats or uses elements of the environment, 2) poaching which kills many animals and accelerates extinction, 3) habitat destruction by human acts or disasters that impacts animal lives, 4) invasive species that humans move to new areas causing harmful ecological changes, and 5) endangered species such as pandas, foxes, and whales that are becoming rare to find. The group believes conservation is an important but difficult challenge for humanity going forward.
Extinction
Extinction refers to the end of a species or group of organisms. A species goes extinct when no living individuals remain. Extinction can occur through natural causes like climate change or competition, or through human activities like habitat destruction and overhunting. Mass extinctions where many species die out simultaneously have occurred throughout history, including five major events in Earth's past. Scientists estimate that human activities are currently driving extinction rates 100 to 1000 times higher than the natural background rate, and up to half of all species could be extinct by 2100 if trends continue.
Extinction of biodiversity
The document discusses extinction and biodiversity loss. It defines extinction as occurring when the last member of a species dies. The passenger pigeon is provided as an example, with the last one dying alone in a zoo in 1914 after the species was already functionally extinct in the wild. Major causes of extinction discussed include habitat degradation and destruction from human activities like pollution, climate change, and overpopulation. Statistics are given on current extinction rates from human impacts being 1500 times the natural rate, with many species projected to be lost in the coming centuries if trends continue. The major impacts of biodiversity loss on human concerns like medicine, agriculture, ecosystem services, and moral obligations are also briefly touched on.
Species Extinction- Reasons and Effects?
In biology and ecology, extinction is the termination of an organism or of a group of organisms normally a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost at this point.
Biodiversity and evolution
BIODIVERSITY AND EVOLUTION
POPULATION
IMPORTANT ASPECTS OF POPULATION
BIRTH- Natural process in which parents give rise to new offspring.
DEATH- Reduces the number of existing individuals in a population.
MIGRATION- Movement of individuals into or out of the population.
IMMIGRATION- Movement of individuals into the population.
EMIGRATION- Movement of individuals out of the population.
PATTERNS OF POPULATION GROWTH
BIOTIC POTENTIAL- Maximum reproductive capacity of an organism given that the resources are unlimited.
EXPONENTIAL GROWTH- Capacity of a population to increase continuously without showing any signs of stabling or declining.
FACTORS THAT AFFECT POPULATION GROWTH OR SIZE
LIMITING FACTORS
-control the growth, size, and distribution of organisms
COMPETITION
ABIOTIC FACTORS
PREDATOR-PREY RELATIOSHIP
POPULATION DENSITY
EXTINCTION
Some famous mass extinction events
Causes of Extinction
Endangered ,Rare & Extinct Species
The document discusses endangered, rare, and extinct species. It provides definitions for each term: endangered species face a high risk of extinction, rare species have populations of fewer than 10,000 individuals, and extinction occurs when the last member of a species dies. The document notes that over 40% of all living species are at risk of extinction due to threats like habitat loss, invasive species, disease, and climate change. It lists several examples of endangered animal species according to the IUCN Red List.
Extinction
Local, ecological, and biological extinction are defined. Population genetics and limited geographic range increase extinction risk, while habitat degradation from agriculture, urbanization, and other human activities is currently the main cause of species extinction. Introduction of new competing species and climate change further threaten biodiversity by causing extinctions, while conservation efforts aim to protect endangered species and ecosystems.
Chapter 4 biodiversity
The document discusses the importance of biodiversity, which includes genetic diversity within species, species diversity between organisms, and ecosystem diversity of different biomes. It notes that species diversity is vital for sustaining life on Earth as it provides pollination, natural pest control, soil renewal and other important biological and chemical processes. However, human activities like habitat destruction have increased extinction rates and threaten biodiversity by eliminating species prematurely.
Causes of extinction
Biodiversity loss and species extinction can occur through natural causes or human disruption of the environment. Natural causes include evolution, asteroid impacts, volcanic eruptions, and plate tectonics, which can destroy habitats. Human disruption involves activities like habitat destruction, climate change, overhunting, pollution, and warfare, which have accelerated species extinction, especially in the Pleistocene and Holocene epochs as human populations and impacts expanded. Conservation efforts aim to protect vulnerable and endangered species from extinction.
ecological extinction
Extinction occurs when a species dies out completely. The main causes of extinction are habitat loss and degradation, introduction of invasive species, overhunting, climate change, pollution and disease. When many species go extinct simultaneously over a short period, it is considered a mass extinction event. The five major mass extinctions in Earth's history were caused by events like asteroid impacts and climate shifts. Today, the main drivers of extinction are human activities like habitat destruction, pollution and climate change. Conservation efforts aim to protect biodiversity in extinction hotspots and prevent further species losses.
Species extinction- animals
1) The document focuses on species extinction as described in an 8th standard Biology textbook. It discusses the major causes of species extinction such as deforestation, hunting, overexploitation, introduction of exotic species, and global warming.
2) Some examples of extinct species given are the Dodo bird which became extinct due to hunting and many Harlequin frog species in Central and South America that disappeared due to infectious diseases caused by climate change.
3) There have been 5 major extinction events in history including at the end of the Ordovician, Devonian, Permian, Triassic, and Cretaceous periods.
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This document defines and provides examples of several types of species:
- Indicator species reflect environmental conditions and can signal ecosystem health.
- Umbrella species have impacts beyond their biomass that protect other species.
- Flagship species are popular, charismatic species that stimulate conservation awareness.
- Keystone species have impacts beyond their abundance and disproportionately influence ecosystem structure.
- Ruderal species are found in environments with high disturbance and low competition.
- Invasive species are exotic species introduced to new environments that spread rapidly and overtake native species.
- Dominant species are abundant and have significant influence over ecosystem composition and structure.
Keystone species
This document discusses keystone species and provides examples from Robert Paine's research. It begins by defining a keystone species as one that has a large effect on the community despite its low abundance. It then summarizes Paine's seminal experiments in the 1960s where he found that removing the predatory sea star Pisaster ochraceous from an intertidal zone led to a decline in species diversity from 15 to 8 species due to competitive exclusion. The document concludes by outlining different types of keystone species including keystone carnivores, seed predators, mutualists, herbivores, plants, and prey.
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The document summarizes key concepts in community ecology:
1. Community structure is described by physical appearance, species diversity, and niche structure.
2. Species diversity is influenced by factors like latitude and pollution.
3. The number of species on an island is determined by immigration and extinction rates, island size, and distance from mainland.
4. Species play roles like native, non-native, indicator, keystone, and foundation species that impact community ecology.
Community ecology
Community ecology is the study of interactions between populations of different species within a defined area. A community consists of producers, consumers, and decomposers at various trophic levels. Species diversity and dominance characterize communities. Dominant species exert more influence over energy flow and physical structure. Communities develop through successional changes over time, eventually reaching a climax community. Stratification describes the vertical layering of communities according to plant height, while horizontal stratification refers to dispersion patterns of individuals across an area. Ecotones are transition zones between two communities that contain characteristics of both.
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Lotka volterra model of competition
Two species when occupy in same habitat accumulating same resource in same manner then competition is inevitable. The normal logistic growth is not expected. Lotka and Volterra proposed equation to describe the interspecific competition among the species. Either one of the species wins other is excluded or they co-exist in unstable or stable manner.
Community Ecology
Community ecology is the study of interactions among populations that live together in a common environment. Species interact through their ecological niches, which are influenced by competition for resources. These interspecific interactions include competition, predation, parasitism, commensalism, and mutualism. Long-term coevolution occurs between interacting species like predators and prey or parasites and hosts. Predation places selection pressure on both predators and prey and has driven the evolution of anti-predator adaptations in prey species like camouflage and warning coloration. Community structure and diversity change over time through ecological succession as species composition transitions from pioneer to climax communities following disturbances.
Community Ecology
This document discusses various topics in community ecology, including factors that structure communities, species interactions, succession, and sustainability. It covers hypotheses about community organization, including the individualistic hypothesis which emphasizes chance assemblage and the interactive hypothesis which views communities as superorganisms linked by biotic interactions. Other topics include community variables, species roles, invasive species, island biogeography, indicator and keystone species, competition and other interspecific interactions, predator-prey dynamics, parasites, and mutualism.
Animal Extinctionand Endangerment
The document discusses mass extinction events that have occurred throughout Earth's history, including the currently ongoing Holocene extinction. It notes that approximately 150-270 species go extinct every day, and that the main drivers of extinction are habitat destruction, pollution, climate change, and other human activities. If current trends continue, half of all plant and animal species are predicted to become extinct by 2100. The document emphasizes the importance of protecting endangered species and their habitats in order to maintain biodiversity and ecosystem services that humans depend on.
18 invasive spp
Invasive species have caused major environmental and economic impacts in the United States. They have contributed to the endangerment or extinction of 49% of threatened species through competition for resources. Many invasive species were introduced accidentally through ballast water or deliberately for agriculture, recreation, or the pet trade and have spread widely. Individual actions like cleaning gear and draining water from boats can help limit the unintended transport of invasive species to new environments.
Junior paper good one
The document discusses how human activity is negatively impacting animal habitats and populations. It provides several examples of how development is destroying coastal and ocean habitats, through activities like building, oil spills, and trash pollution. Global warming is also hindering many species by forcing them to find new habitats and impacting food and living conditions. As human populations grow, animal populations decline due to loss of habitat and resources. Wildlife biologists should act as leaders to encourage better stewardship of the environment to protect animal populations.
Junior paper good one
The document discusses how human activity is negatively impacting animal habitats and populations. It provides several examples of how development is destroying coastal and ocean habitats, through activities like building, oil spills, and trash pollution. Global warming is also hindering many species by forcing them to find new habitats and impacting food and living conditions. As human populations grow, animal populations decline due to loss of habitat and resources. Wildlife biologists should act as leaders to encourage better stewardship of the environment to protect animal populations.
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Causes of extinction
Biodiversity loss and species extinction can occur through natural causes or human disruption of the environment. Natural causes include evolution, asteroid impacts, volcanic eruptions, and plate tectonics, which can destroy habitats. Human disruption involves activities like habitat destruction, climate change, overhunting, pollution, and warfare, which have accelerated species extinction, especially in the Pleistocene and Holocene epochs as human populations and impacts expanded. Conservation efforts aim to protect vulnerable and endangered species from extinction.
ecological extinction
Extinction occurs when a species dies out completely. The main causes of extinction are habitat loss and degradation, introduction of invasive species, overhunting, climate change, pollution and disease. When many species go extinct simultaneously over a short period, it is considered a mass extinction event. The five major mass extinctions in Earth's history were caused by events like asteroid impacts and climate shifts. Today, the main drivers of extinction are human activities like habitat destruction, pollution and climate change. Conservation efforts aim to protect biodiversity in extinction hotspots and prevent further species losses.
Species extinction- animals
1) The document focuses on species extinction as described in an 8th standard Biology textbook. It discusses the major causes of species extinction such as deforestation, hunting, overexploitation, introduction of exotic species, and global warming.
2) Some examples of extinct species given are the Dodo bird which became extinct due to hunting and many Harlequin frog species in Central and South America that disappeared due to infectious diseases caused by climate change.
3) There have been 5 major extinction events in history including at the end of the Ordovician, Devonian, Permian, Triassic, and Cretaceous periods.
Unit 3 b ch 10 s2 biodiversity at risk
This document discusses biodiversity and the threats facing many species. It defines threatened, endangered, and extinct species and explains the differences. While there have been natural extinction events in the past, the current "6th extinction" is caused by human activities. Specialist species with small populations are most at risk. The main human threats are habitat destruction, invasive species, pollution, poaching, and overharvesting. Tropical rainforests, coral reefs, and islands have extremely high biodiversity but are being rapidly degraded. "Biodiversity hotspots" face especially high threats and have lost 70% of their original habitat. Some biodiversity hotspots in the US include the Everglades, Midwest prairies, and
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Beautiful, graphic rich slides to engage students based on Essential Environment by Withgott and Laposota. Slides cover Chapter 3 evolution, biodiversity and population ecology
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No population can continue growing indefinitely due to limitations on resources and competition among species. Populations can grow, shrink, or stay the same depending on births, deaths, immigration, and emigration. When a population exceeds the carrying capacity of its environment, the population may crash due to lack of resources or disease. Communities and ecosystems change over time in response to environmental conditions through the process of ecological succession as different species colonize and replace one another.
Aquatic Invasive Species Workshop
The document summarizes an aquatic invasive species workshop that discussed issues related to invasive species in Little Albro Lake. It provides background on invasive species and outlines presentations from various experts that covered topics like identifying native and invasive plants, watershed stewardship, the impacts of invasive species, and management strategies for yellow floating heart, an invasive aquatic plant found in the lake.
Genetic consevation
The document discusses genetic conservation and genetic variation. It defines genetic conservation as maintaining genetic diversity within and among populations to ensure species can adapt to environmental changes. Genetic variation is important for evolution and survival, as it allows populations to adapt. Sources of genetic variation include mutation, recombination, and gene flow. Low genetic diversity reduces a population's ability to evolve and increases extinction risk. The document also discusses the importance of both neutral and adaptive genetic variation, how genetic variation is measured, and factors that influence changes in allele frequencies like genetic drift.
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Community ecology examines how species interact and relate to one another within biological communities. Ecologists represent feeding interactions through food chains and complex food webs. Organisms are classified based on trophic levels according to their position in the food web. Communities experience natural and human-caused disturbances and undergo succession over time. Some species have outsized impacts on community structure as keystone species, ecosystem engineers, or foundation species. Community ecologists study how communities resist or recover from disturbances.
Types of species, umbrella, keystone
This document defines and provides examples of several types of species:
- Indicator species reflect environmental conditions and can signal ecosystem health.
- Umbrella species have impacts beyond their biomass that protect other species.
- Flagship species are popular, charismatic species that stimulate conservation awareness.
- Keystone species have impacts beyond their abundance and disproportionately influence ecosystem structure.
- Ruderal species are found in environments with high disturbance and low competition.
- Invasive species are exotic species introduced to new environments that spread rapidly and overtake native species.
- Dominant species are abundant and have significant influence over ecosystem composition and structure.
Keystone species
This document discusses keystone species and provides examples from Robert Paine's research. It begins by defining a keystone species as one that has a large effect on the community despite its low abundance. It then summarizes Paine's seminal experiments in the 1960s where he found that removing the predatory sea star Pisaster ochraceous from an intertidal zone led to a decline in species diversity from 15 to 8 species due to competitive exclusion. The document concludes by outlining different types of keystone species including keystone carnivores, seed predators, mutualists, herbivores, plants, and prey.
Sense Of Place
Presentation to Sense of Place, Palo Alto, by Miriam Sachs Martín, as Chief Preserve Steward for Acterra. Keywords: ecology, habitat, riparian, oak woodland, species, invasive, biocultural diversity, Native Americans, stewardship.
Community Ecology
The document summarizes key concepts in community ecology:
1. Community structure is described by physical appearance, species diversity, and niche structure.
2. Species diversity is influenced by factors like latitude and pollution.
3. The number of species on an island is determined by immigration and extinction rates, island size, and distance from mainland.
4. Species play roles like native, non-native, indicator, keystone, and foundation species that impact community ecology.
Community ecology
Community ecology is the study of interactions between populations of different species within a defined area. A community consists of producers, consumers, and decomposers at various trophic levels. Species diversity and dominance characterize communities. Dominant species exert more influence over energy flow and physical structure. Communities develop through successional changes over time, eventually reaching a climax community. Stratification describes the vertical layering of communities according to plant height, while horizontal stratification refers to dispersion patterns of individuals across an area. Ecotones are transition zones between two communities that contain characteristics of both.
05 ecol evol
The document discusses environmentalism from the 1980s to present. In the 1980s, there was a backlash against environmentalism with cuts to conservation funding and relaxed regulations. Visible environmental problems like oil spills drew attention. In the 1990s and 2000s, issues like climate change and biodiversity gained recognition, though the Bush administration opposed some environmental policies. Debate continues over balancing economic and environmental concerns.
Lotka volterra model of competition
Two species when occupy in same habitat accumulating same resource in same manner then competition is inevitable. The normal logistic growth is not expected. Lotka and Volterra proposed equation to describe the interspecific competition among the species. Either one of the species wins other is excluded or they co-exist in unstable or stable manner.
Community Ecology
Community ecology is the study of interactions among populations that live together in a common environment. Species interact through their ecological niches, which are influenced by competition for resources. These interspecific interactions include competition, predation, parasitism, commensalism, and mutualism. Long-term coevolution occurs between interacting species like predators and prey or parasites and hosts. Predation places selection pressure on both predators and prey and has driven the evolution of anti-predator adaptations in prey species like camouflage and warning coloration. Community structure and diversity change over time through ecological succession as species composition transitions from pioneer to climax communities following disturbances.
Community Ecology
This document discusses various topics in community ecology, including factors that structure communities, species interactions, succession, and sustainability. It covers hypotheses about community organization, including the individualistic hypothesis which emphasizes chance assemblage and the interactive hypothesis which views communities as superorganisms linked by biotic interactions. Other topics include community variables, species roles, invasive species, island biogeography, indicator and keystone species, competition and other interspecific interactions, predator-prey dynamics, parasites, and mutualism.
Animal Extinctionand Endangerment
The document discusses mass extinction events that have occurred throughout Earth's history, including the currently ongoing Holocene extinction. It notes that approximately 150-270 species go extinct every day, and that the main drivers of extinction are habitat destruction, pollution, climate change, and other human activities. If current trends continue, half of all plant and animal species are predicted to become extinct by 2100. The document emphasizes the importance of protecting endangered species and their habitats in order to maintain biodiversity and ecosystem services that humans depend on.
18 invasive spp
Invasive species have caused major environmental and economic impacts in the United States. They have contributed to the endangerment or extinction of 49% of threatened species through competition for resources. Many invasive species were introduced accidentally through ballast water or deliberately for agriculture, recreation, or the pet trade and have spread widely. Individual actions like cleaning gear and draining water from boats can help limit the unintended transport of invasive species to new environments.
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Evolution, biodiversity, and population ecology by Kiersten Lippmann
Evolution, biodiversity, and population ecology by Kiersten Lippmann
Similar to Ingles especies en extincion
Junior paper good one
The document discusses how human activity is negatively impacting animal habitats and populations. It provides several examples of how development is destroying coastal and ocean habitats, through activities like building, oil spills, and trash pollution. Global warming is also hindering many species by forcing them to find new habitats and impacting food and living conditions. As human populations grow, animal populations decline due to loss of habitat and resources. Wildlife biologists should act as leaders to encourage better stewardship of the environment to protect animal populations.
Junior paper good one
The document discusses how human activity is negatively impacting animal habitats and populations. It provides several examples of how development is destroying coastal and ocean habitats, through activities like building, oil spills, and trash pollution. Global warming is also hindering many species by forcing them to find new habitats and impacting food and living conditions. As human populations grow, animal populations decline due to loss of habitat and resources. Wildlife biologists should act as leaders to encourage better stewardship of the environment to protect animal populations.
Extinction Of Animal Extinction
The document discusses animal extinction and the current mass extinction event caused by human activity. It notes that the Earth is currently undergoing a sixth mass extinction, with human choices negatively impacting other species through environmental degradation, habitat destruction, and climate change. Invasive species introduced by humans also have significant negative effects on ecosystems. If human impacts are not addressed, many more species will likely go extinct.
all-about-endangered-species-powerpoint_ver_5.pptx
This document discusses endangered species and the threats they face. It defines endangered as a species being at risk of extinction, and explains that this can occur when species lose habitat or lack genetic diversity. Habitat loss can happen naturally, as with dinosaurs, or through human activities like deforestation. Loss of diversity occurs when small populations only breed within their limited group. The document outlines the different threat categories used in the Red List to classify species, from least concern to extinct. It provides examples of species that are extinct in the wild or fully extinct, and discusses how protecting habitats and reducing threats can help species recover.
Endangered species
The document defines an endangered species as one at risk of extinction if reproduction rates decline. Examples given are giant pandas, polar bears, and elephants. Causes of endangerment include habitat destruction, pollution, disease, and illegal hunting. To help, people can reduce pollution, join conservation groups, and stop illegal hunting.
Invasive species kendall arthur
The document discusses invasive species and their threats and impacts. It defines invasive species as alien species whose introduction causes economic, environmental, or health harm. Invasive species bring diseases that native species lack immunity against, prey upon native species without natural defenses, compete more efficiently than native species, can hybridize with and eliminate native gene pools through interbreeding, and alter habitats in ways that harm native species. Examples highlighted include the chestnut blight fungus, brown tree snake on Guam, gray squirrels in Europe and Italy, and zebra mussels in North America. The document also asserts that humans are the most invasive species, through activities like industrial pollution, disease spread, habitat destruction including deforestation, overexploitation of resources
De-Extinction Of Extinct Animals
The document discusses de-extinction of extinct animals and provides a few key points in support. It argues that de-extinction could prove or disprove theories of evolution by allowing observation of extinct species. It also claims that de-extinction could provide insight into how past species died off and help prevent similar extinctions. Finally, it notes that de-extinction would be a breakthrough in genetic engineering. The overall argument is that de-extinction could have scientific and conservation benefits.
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The document discusses endangered species in the Dominican Republic. It lists several plant and animal species that are endangered or threatened with extinction in the Dominican Republic, including various orchid and palm species. It also discusses the main threats facing endangered species in the country, such as habitat destruction, hunting, and the expansion of agricultural land into species' habitats.
Englishrafelina
Pollution, acid rain, and deforestation are damaging plant species. Pollution prevents plant growth, acid rain contaminates soil, and deforestation eliminates habitats. Solutions include replanting forests, preventing water pollution, and stopping deforestation. Several endangered animal species like the palmchat, panda, humpback whale, and mahogany are threatened by habitat loss and hunting. Conservation efforts like protected areas and anti-poaching laws aim to protect these species. Endangered plants such as yareta, rosewood, and llareta face cutting and illegal commercialization, which can be addressed by preventing illegal sales and replanting initiatives.
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The Javan tiger was a subspecies of tiger that was endemic to the Indonesian island of Java. In the early 19th century, Javan tigers were common pests, but as the human population increased and their habitat was destroyed for agriculture, they were ruthlessly hunted. The last confirmed sighting of a Javan tiger was in 1972, though tracks suggested a few may have survived until 1979. Habitat loss and agricultural expansion were the primary causes of their extinction.
Edangered species
An endangered species is a species facing a high risk of extinction. There are currently over 3070 endangered animal species and 2655 endangered plant species worldwide. The main cause of species endangerment and extinction is habitat destruction and fragmentation due to human activities like pollution, deforestation, and destruction of coral reefs. When a species goes extinct it can disrupt the balance of the entire ecosystem. International efforts aim to protect endangered species through conservation programs and biodiversity action plans.
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Ingles especies en extincion
- 1. Endangered species Luisa Fernanda Ramírez. #18 Jordy Placido #17 Next Teacher: Wendy Quezada. Date: March 7th, 2013. Signature: English.
- 2. ¿What is an endangered species? An endangered species is a native species that faces a significant risk of extinction in the near future. Such species may be declining in number due to threats caused by the human race.
- 3. ¿Why are they endangered? There are many causes for this to happen, all caused by the human race (directly or indirectly). Some of them are: Habitat Destruction Introduction of exotic species Our planet is constantly changing, but Exotic species are those interloped into humans have caused very fast changes new environments, affecting the natural that haven’t given no time for individual balance of that environment and species to react and adjust to this endangering the native species of the changes. same. This is the primary cause for This exotic species can alter de natural endangerment. And also, It includes the habitat and can cause a major species’ habitats destruction, what has competition for food. Some of these already caused the extinction of species are pigs, insects, cats, rats, etc.. species, specially aquatic species.
- 4. Overexploitation Many species are killed because of the demand of parts of their bodies used for eating, decoration, clothes, etc.. An example is the rhinos for their horns, tigers for their bones or elephants for their horns too. Other factors Such as disease and pollution.
- 5. Possible Solutions We believe that there are a lot of people around the world making efforts to save these animals, but its important for even more people to get involved, for the government to give more priority to these problems. But what is most important, is to make every single person conscious of this issue so they can help; because when everybody contributes, big changes come along.
- 6. Endangered species in the Dominican Republic: Animal Species The Carey Turtle The manatee The American crocodile
- 7. Plant species The Orchid The Bromeliad Cobana Negra Palo de Rosa
- 8. Thank You!