Ch 2-3 Human Actions
... • Total area of the land and water ecosystems that provide the resources that each person uses ...
... • Total area of the land and water ecosystems that provide the resources that each person uses ...
Effects of Climate C..
... Biological Diversity/Biodiversity “the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ecosystems” (Convent ...
... Biological Diversity/Biodiversity “the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species and of ecosystems” (Convent ...
biodiversity - Association of American Geographers
... This map deals with the potential for species richness—specifically for terrestrial vertebrates—according to climate and ecosystem. Greatest richness is to be found along the coast and at mid-elevations, where temperatures are mild and the air is moist. ...
... This map deals with the potential for species richness—specifically for terrestrial vertebrates—according to climate and ecosystem. Greatest richness is to be found along the coast and at mid-elevations, where temperatures are mild and the air is moist. ...
Benefits_of_Biodiversity
... It is a scientific discipline devoted to understanding the factors, forces, and processes that influence the loss, protection, and restoration of biological diversity within and among ecosystems. This concept arose in response to increasing extinction rates. Conservation biologists attempt to in ...
... It is a scientific discipline devoted to understanding the factors, forces, and processes that influence the loss, protection, and restoration of biological diversity within and among ecosystems. This concept arose in response to increasing extinction rates. Conservation biologists attempt to in ...
species. - Kelso High School
... A species is only able to settle into an ecological niche and prosper if it is well adapted to that way of life. ...
... A species is only able to settle into an ecological niche and prosper if it is well adapted to that way of life. ...
ECOSYSTEM ECOLOGY
... • ↑species richness and ↑ evenness: ↑ stability (ability to withstand disturbances in the ecosystem) • High richness and evenness = High biodiversity ...
... • ↑species richness and ↑ evenness: ↑ stability (ability to withstand disturbances in the ecosystem) • High richness and evenness = High biodiversity ...
Human impacts on ecosystems
... introduction or spread threatens the environment, the economy and society, including human health. Come from other continents, adjacent countries or from other ecosystems within Canada. Free from predation and competition many invasive species reproduce rapidly and damage, displace or destroy na ...
... introduction or spread threatens the environment, the economy and society, including human health. Come from other continents, adjacent countries or from other ecosystems within Canada. Free from predation and competition many invasive species reproduce rapidly and damage, displace or destroy na ...
Human impacts on ecosystems
... introduction or spread threatens the environment, the economy and society, including human health. Come from other continents, adjacent countries or from other ecosystems within Canada. Free from predation and competition many invasive species reproduce rapidly and damage, displace or destroy na ...
... introduction or spread threatens the environment, the economy and society, including human health. Come from other continents, adjacent countries or from other ecosystems within Canada. Free from predation and competition many invasive species reproduce rapidly and damage, displace or destroy na ...
Biodiversity - My Teacher Pages
... differences among species (plants, amphibians, fish, reptiles, birds, mammals) 3) Ecosystem Diversity – the abundance of differences among ecosystems (rivers, forests, wetlands, deserts, coral reefs) ...
... differences among species (plants, amphibians, fish, reptiles, birds, mammals) 3) Ecosystem Diversity – the abundance of differences among ecosystems (rivers, forests, wetlands, deserts, coral reefs) ...
Biodiversity Overview 2
... The Value of Biodiversity Why is biodiversity important? ECOLOGICAL VALUE • Species depend on each other for food and shelter. • Nature is a delicate balance. The well-being of one species effects the well-being on many others. (KEYSTONE SPECIES) ...
... The Value of Biodiversity Why is biodiversity important? ECOLOGICAL VALUE • Species depend on each other for food and shelter. • Nature is a delicate balance. The well-being of one species effects the well-being on many others. (KEYSTONE SPECIES) ...
6-1 A Changing Landscape
... Endangered Species species whose population size is rapidly declining and will become extinct if the trend continues ...
... Endangered Species species whose population size is rapidly declining and will become extinct if the trend continues ...
200 300 400 500 100 200 300 400 500 100 200 300 400 500 100
... Biodiversity BiodiversityBiodiversity Impacts ...
... Biodiversity BiodiversityBiodiversity Impacts ...
Mexican Biodiversity
... “Nature holds the key to our aesthetic, intellectual, cognitive and even spiritual satisfaction.” Edward O. Wilson ...
... “Nature holds the key to our aesthetic, intellectual, cognitive and even spiritual satisfaction.” Edward O. Wilson ...
Unit 3: Evolution, Biodiversity, Climate, Weather, and Biomes
... Most species have evolved to inhabit very specialized niches in their environment ...
... Most species have evolved to inhabit very specialized niches in their environment ...
Humans in the Biosphere
... Loss of trees/forest What happens if there are no trees or roots? (why is vegetation important?) SOIL EROSION, soil is exposed to heavy rain, especially in tropical areas! *Video* ...
... Loss of trees/forest What happens if there are no trees or roots? (why is vegetation important?) SOIL EROSION, soil is exposed to heavy rain, especially in tropical areas! *Video* ...
Loss of Biodiversity
... Earth’s biodiversity Biodiversity – the diversity of life on Earth – variety at all levels of biological organization Components of biodiversity: • Genetic diversity – genetic variation within populations or species • Species diversity – numbers of species within an area • Diversity among higher ta ...
... Earth’s biodiversity Biodiversity – the diversity of life on Earth – variety at all levels of biological organization Components of biodiversity: • Genetic diversity – genetic variation within populations or species • Species diversity – numbers of species within an area • Diversity among higher ta ...
06-3 Biodiversity
... Other types of diversity ~ Ecosystem diversity - includes habitats, communities, and processes ...
... Other types of diversity ~ Ecosystem diversity - includes habitats, communities, and processes ...
Chapter 6.3: Biodiversity
... extinction, introducing toxic compounds into food webs, and introducing foreign species to new environments Extinction ______________________________________________________________ _______________________________________________________________________ Endangered Species ___________________________ ...
... extinction, introducing toxic compounds into food webs, and introducing foreign species to new environments Extinction ______________________________________________________________ _______________________________________________________________________ Endangered Species ___________________________ ...
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.