Biodiversity PPT Revised
... species and ecosystems have a right to exist whether or not they have any other value. • People also value biodiversity for aesthetic or personal enjoyment such as keeping pets, camping, picking flowers, or watching wildlife. • Ecotourism is a form of tourism that supports the conservation and susta ...
... species and ecosystems have a right to exist whether or not they have any other value. • People also value biodiversity for aesthetic or personal enjoyment such as keeping pets, camping, picking flowers, or watching wildlife. • Ecotourism is a form of tourism that supports the conservation and susta ...
Pages 304-308 - Lakeland Regional High School
... - Increases stress on populations and forces organisms to shift their geographic ranges toward the poles and higher in altitude • Most animals and plants will not be able to cope when in new communities of prey, predators & ...
... - Increases stress on populations and forces organisms to shift their geographic ranges toward the poles and higher in altitude • Most animals and plants will not be able to cope when in new communities of prey, predators & ...
Extinction order and altered community structure
... functional contribution of a species) (Lavorel & Garnier 2002; Naeem & Wright 2003; Solan et al. 2004). If response and effect traits are independent, the order of species loss from communities will be random with respect to functional importance. However, a correlation between these traits can modi ...
... functional contribution of a species) (Lavorel & Garnier 2002; Naeem & Wright 2003; Solan et al. 2004). If response and effect traits are independent, the order of species loss from communities will be random with respect to functional importance. However, a correlation between these traits can modi ...
Thresholds of Potential Concern - Learning Center of the American
... that they dictate whether, when, and how management actions are implemented. This is accomplished through an adaptive process that begins with developing TCPs that reflect a hierarchy of objectives for the park. Hierarchy of Objectives The TPCs in Kruger National Park are developed in such a way so ...
... that they dictate whether, when, and how management actions are implemented. This is accomplished through an adaptive process that begins with developing TCPs that reflect a hierarchy of objectives for the park. Hierarchy of Objectives The TPCs in Kruger National Park are developed in such a way so ...
INTERMEDIATE DISTURBANCE AND ITS RELATIONSHIP TO
... only qualitative predictions regarding changes in species diversity in response to disturbance frequency. Because it is qualitative, we view the intermediate disturbance hypothesis not so much as a specific hypothesis to be tested within a set of rigidly defined spatial and temporal criteria, but mo ...
... only qualitative predictions regarding changes in species diversity in response to disturbance frequency. Because it is qualitative, we view the intermediate disturbance hypothesis not so much as a specific hypothesis to be tested within a set of rigidly defined spatial and temporal criteria, but mo ...
Land-use intensification reduces functional redundancy and
... species whose ecological effects are similar, then any given species pool may be classified into Ôfunctional effect groupsÕ, based on the traits which determine these effects (Hooper et al. 2002; Lavorel & Garnier 2002). The degree of redundancy within a functional effect group is the number of spec ...
... species whose ecological effects are similar, then any given species pool may be classified into Ôfunctional effect groupsÕ, based on the traits which determine these effects (Hooper et al. 2002; Lavorel & Garnier 2002). The degree of redundancy within a functional effect group is the number of spec ...
Community Ecology
... particular species reduces competition and increases diversity. – Predators that regulate competition and maintain community diversity are referred to as keystone predators. Introduction of exotic species into a new area may lead to unbridled competition and resultant reduction in biodiversity. Made ...
... particular species reduces competition and increases diversity. – Predators that regulate competition and maintain community diversity are referred to as keystone predators. Introduction of exotic species into a new area may lead to unbridled competition and resultant reduction in biodiversity. Made ...
Studying insect diversity in the tropics
... Wagner 1997); in Asia (e.g. Morse et al. 1988; Stork 1988, 1991; Hammond et al. 1997); and in Australia (e.g. Basset & Kitching 1991). The studies show an inordinate fondness for beetles, although other groups have also been examined and a few studies have surveyed the full spectrum of insects (e.g. ...
... Wagner 1997); in Asia (e.g. Morse et al. 1988; Stork 1988, 1991; Hammond et al. 1997); and in Australia (e.g. Basset & Kitching 1991). The studies show an inordinate fondness for beetles, although other groups have also been examined and a few studies have surveyed the full spectrum of insects (e.g. ...
Tower Hamlets Local Biodiversity Action Plan 2014
... will be entered and reported on in the Biodiversity Action Reporting System (BARS)1, a national database set up by the Joint Nature Conservation Committee to monitor biodiversity action across the UK. ...
... will be entered and reported on in the Biodiversity Action Reporting System (BARS)1, a national database set up by the Joint Nature Conservation Committee to monitor biodiversity action across the UK. ...
the ecological consequences of changes in biodiversity
... differentiation effect). Both effects cause more complete utilization of limiting resources at higher diversity, which increases resource retention, further increasing productivity. Finally, lower levels of available limiting resources at higher diversity are predicted to decrease the susceptibility ...
... differentiation effect). Both effects cause more complete utilization of limiting resources at higher diversity, which increases resource retention, further increasing productivity. Finally, lower levels of available limiting resources at higher diversity are predicted to decrease the susceptibility ...
ecosystem effects of biodiversity manipulations in
... seen as a result of human activities and climate change. Identifying general patterns in a research area such as this can be a major obstacle because even well-replicated ecological studies are often conducted at single points in space and time, and often focus on one or a small number of variables. ...
... seen as a result of human activities and climate change. Identifying general patterns in a research area such as this can be a major obstacle because even well-replicated ecological studies are often conducted at single points in space and time, and often focus on one or a small number of variables. ...
Larsen et al (2005) Ecol Letters pdf
... functional contribution of a species) (Lavorel & Garnier 2002; Naeem & Wright 2003; Solan et al. 2004). If response and effect traits are independent, the order of species loss from communities will be random with respect to functional importance. However, a correlation between these traits can modi ...
... functional contribution of a species) (Lavorel & Garnier 2002; Naeem & Wright 2003; Solan et al. 2004). If response and effect traits are independent, the order of species loss from communities will be random with respect to functional importance. However, a correlation between these traits can modi ...
The long-term relationship between plant diversity and total plant
... analytically tractable, and acts as a limiting case for the behavior of more speciose models. Third, the twospecies version of each model might be expected to capture many (though by no means all) aspects of the dynamics of more speciose models. For instance, Leibold (1996) and Tilman et al. (1997a) ...
... analytically tractable, and acts as a limiting case for the behavior of more speciose models. Third, the twospecies version of each model might be expected to capture many (though by no means all) aspects of the dynamics of more speciose models. For instance, Leibold (1996) and Tilman et al. (1997a) ...
The long-term relationship between plant diversity and total plant
... analytically tractable, and acts as a limiting case for the behavior of more speciose models. Third, the twospecies version of each model might be expected to capture many (though by no means all) aspects of the dynamics of more speciose models. For instance, Leibold (1996) and Tilman et al. (1997a) ...
... analytically tractable, and acts as a limiting case for the behavior of more speciose models. Third, the twospecies version of each model might be expected to capture many (though by no means all) aspects of the dynamics of more speciose models. For instance, Leibold (1996) and Tilman et al. (1997a) ...
Elephants in Africa: Big, grey biodiversity thieves?
... knock-on effects for sympatric species10,18,19. The effects of elephants on biological diversity in protected areas are of particular concern in light of how expansion in human populations, and the land-use change that follows, places increasing pressure on reserves to preserve biological diversity. ...
... knock-on effects for sympatric species10,18,19. The effects of elephants on biological diversity in protected areas are of particular concern in light of how expansion in human populations, and the land-use change that follows, places increasing pressure on reserves to preserve biological diversity. ...
Ex-situ conservation
... education 12 and capacity-building 13. The use of ex-situ conservation is recommended if insitu conservation, the preferable conservation alternative, is not available or not functional for the near-term survival of a species. In-situ (“on site”) conservation refers to conservation techniques implem ...
... education 12 and capacity-building 13. The use of ex-situ conservation is recommended if insitu conservation, the preferable conservation alternative, is not available or not functional for the near-term survival of a species. In-situ (“on site”) conservation refers to conservation techniques implem ...
NotesChapter7
... an accurate extinction probability for t years from a model, one needs an estimated 5t – 10t years of data (Wikipedia Contributors 2006c). For most threatened species such data are unavailable so decisions have to be taken without adequate information (Primack 1998, Coulson et al. 2001, Pullin 2002, ...
... an accurate extinction probability for t years from a model, one needs an estimated 5t – 10t years of data (Wikipedia Contributors 2006c). For most threatened species such data are unavailable so decisions have to be taken without adequate information (Primack 1998, Coulson et al. 2001, Pullin 2002, ...
NotesChapter7
... an accurate extinction probability for t years from a model, one needs an estimated 5t – 10t years of data (Wikipedia Contributors 2006c). For most threatened species such data are unavailable so decisions have to be taken without adequate information (Primack 1998, Coulson et al. 2001, Pullin 2002, ...
... an accurate extinction probability for t years from a model, one needs an estimated 5t – 10t years of data (Wikipedia Contributors 2006c). For most threatened species such data are unavailable so decisions have to be taken without adequate information (Primack 1998, Coulson et al. 2001, Pullin 2002, ...
3 Biodiversity and Ecosystem Functioning
... or algal species richness in a variety of terrestrial, freshwater, and marine ecosystems found that the most diverse polycultures attain, on average, 1.4 times more biomass than the average monoculture (Cardinale et al. 2011). This result was consistent for both aquatic and terrestrial systems. Card ...
... or algal species richness in a variety of terrestrial, freshwater, and marine ecosystems found that the most diverse polycultures attain, on average, 1.4 times more biomass than the average monoculture (Cardinale et al. 2011). This result was consistent for both aquatic and terrestrial systems. Card ...
Locally rare species influence grassland ecosystem
... services in the future. The functional importance of common versus rare species could depend on the ecosystem functions under scrutiny. Studies focused on productivity and pollination have found common species to be the main driver (e.g. [9,14 –17]) while those focusing on functions associated with ...
... services in the future. The functional importance of common versus rare species could depend on the ecosystem functions under scrutiny. Studies focused on productivity and pollination have found common species to be the main driver (e.g. [9,14 –17]) while those focusing on functions associated with ...
Locally rare species influence grassland ecosystem multifunctionality
... services in the future. The functional importance of common versus rare species could depend on the ecosystem functions under scrutiny. Studies focused on productivity and pollination have found common species to be the main driver (e.g. [9,14 –17]) while those focusing on functions associated with ...
... services in the future. The functional importance of common versus rare species could depend on the ecosystem functions under scrutiny. Studies focused on productivity and pollination have found common species to be the main driver (e.g. [9,14 –17]) while those focusing on functions associated with ...
Can community-protected areas conserve biodiversity in human
... Tropical forests are the world´s most biodiverse terrestrial ecosystems [1] and face high deforestation rates [2]. As old-growth forests become scarcer [3], complex landscapes in which secondary and degraded forests coexist with productive land-cover types tend to be the most common scenario through ...
... Tropical forests are the world´s most biodiverse terrestrial ecosystems [1] and face high deforestation rates [2]. As old-growth forests become scarcer [3], complex landscapes in which secondary and degraded forests coexist with productive land-cover types tend to be the most common scenario through ...
Infectious disease and primate conservation
... from Ebola. One concern is that it would be more difficult to convince wildlife managers to invest in controlling the very real threats that they can effectively mitigate—such as human respiratory pathogens transmitting to wildlife—if they are concerned that Ebola may wipe out their entire ape popul ...
... from Ebola. One concern is that it would be more difficult to convince wildlife managers to invest in controlling the very real threats that they can effectively mitigate—such as human respiratory pathogens transmitting to wildlife—if they are concerned that Ebola may wipe out their entire ape popul ...
Precipitation and aridity index regulating spatial patterns of
... analyze the relationship among environment factors, as shown in Table 1. As a result, annual mean ...
... analyze the relationship among environment factors, as shown in Table 1. As a result, annual mean ...
Soil phosphorus heterogeneity promotes tree species diversity and
... species diversity, and community phylogenetic structure were measured. Soil phosphorus heterogeneity and tree species diversity in each plot were positively correlated, while phosphorus availability and tree species diversity were not. The trees in plots with low soil phosphorus heterogeneity were p ...
... species diversity, and community phylogenetic structure were measured. Soil phosphorus heterogeneity and tree species diversity in each plot were positively correlated, while phosphorus availability and tree species diversity were not. The trees in plots with low soil phosphorus heterogeneity were p ...
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.