Energy, Density, and Constraints to Species Richness: Ant
... by resources and predators. This produces a signature stairstep of biomass and density along a productivity gradient (e.g., Kauzinger and Morin 1998). Likewise, abiotic factors have been linked, not just to plant productivity, but to the ability of consumers to harvest productivity (Andrewartha and ...
... by resources and predators. This produces a signature stairstep of biomass and density along a productivity gradient (e.g., Kauzinger and Morin 1998). Likewise, abiotic factors have been linked, not just to plant productivity, but to the ability of consumers to harvest productivity (Andrewartha and ...
The Role of Consumers in Community Diversity
... (Naeem 2002) 1. Decomposers and producers are locked in an “antagonistic mutualistic” relationship. Environmental changes lead to inseparable responses by both; 2. Consumers affect rates of movement of materials among different pools; 3. Consumers can determine the distribution of biomass among trop ...
... (Naeem 2002) 1. Decomposers and producers are locked in an “antagonistic mutualistic” relationship. Environmental changes lead to inseparable responses by both; 2. Consumers affect rates of movement of materials among different pools; 3. Consumers can determine the distribution of biomass among trop ...
Lecture 8.
... place at micro levels, at short space and small time period, but these become apparent only over a large space and a big time gap. The variations may be linear or cyclic. The variety and variability of organisms is referred to as biological diversity or Biodiversity. Similarly the biological variati ...
... place at micro levels, at short space and small time period, but these become apparent only over a large space and a big time gap. The variations may be linear or cyclic. The variety and variability of organisms is referred to as biological diversity or Biodiversity. Similarly the biological variati ...
biodiversity education factsheet
... – balancing the economic needs of people with the health of the ocean. Learning Goals: At the end of this lesson, students will: • Learn that sustainability is the ability to balance the needs of the present without compromising the ability of future generations to meet their own needs • Assess th ...
... – balancing the economic needs of people with the health of the ocean. Learning Goals: At the end of this lesson, students will: • Learn that sustainability is the ability to balance the needs of the present without compromising the ability of future generations to meet their own needs • Assess th ...
Biodiversity and Management of Natural Resources
... They also listed 106 major West Coast salmon and steelhead stocks that have become extinct. The authors attribute the stock declines to habitat loss, inadequate water flow and passage opportunities resulting from hydropower and other developments, overfishing, and harmful interactions with hatchery ...
... They also listed 106 major West Coast salmon and steelhead stocks that have become extinct. The authors attribute the stock declines to habitat loss, inadequate water flow and passage opportunities resulting from hydropower and other developments, overfishing, and harmful interactions with hatchery ...
Position Paper by Biodiversity on the Brink
... species has accelerated to a maximum of 1000 times compared to the natural state. At the present day it is applied to be the 6th mass extinction period since the birth of life, but it is induced by a certain species (human). Additionally it was reported that within the past 50 years, 60% of the ecos ...
... species has accelerated to a maximum of 1000 times compared to the natural state. At the present day it is applied to be the 6th mass extinction period since the birth of life, but it is induced by a certain species (human). Additionally it was reported that within the past 50 years, 60% of the ecos ...
MONTEVERDE GOLDEN TOAD Remaining Population: Unknown
... The eggs were laid in seasonal water catchments, where the tadpoles would hatch and grow into adults in a very short time. In 1987, the golden toad was closely studied by an American ecologist and herpetologist who, by chance, happened upon its breeding spectacle. She described it as brief and breat ...
... The eggs were laid in seasonal water catchments, where the tadpoles would hatch and grow into adults in a very short time. In 1987, the golden toad was closely studied by an American ecologist and herpetologist who, by chance, happened upon its breeding spectacle. She described it as brief and breat ...
From biodiversity-based conservation to an ethic of bioproportionality
... Few vast areas of land relatively undisturbed by human activity and home to abundant populations of wild, indigenous animal species remain on earth, but wherever they do – as in parts of the Arctic, Antarctica, Australia and South America – they are currently threatened with large-scale resource ext ...
... Few vast areas of land relatively undisturbed by human activity and home to abundant populations of wild, indigenous animal species remain on earth, but wherever they do – as in parts of the Arctic, Antarctica, Australia and South America – they are currently threatened with large-scale resource ext ...
Notes and Comments Diversity-Stability Relationships: Statistical Inevitability or Ecological Consequence?
... community is necessarily more stable than the individual species that it contains and that the magnitude of this effect increases with diversity. This effect holds for all values of z. This effect, which has guided financial investment strategies for decades, contributes to the dependence of communi ...
... community is necessarily more stable than the individual species that it contains and that the magnitude of this effect increases with diversity. This effect holds for all values of z. This effect, which has guided financial investment strategies for decades, contributes to the dependence of communi ...
Diversity-stability relationships: statistical inevitability or ecological
... community is necessarily more stable than the individual species that it contains and that the magnitude of this effect increases with diversity. This effect holds for all values of z. This effect, which has guided financial investment strategies for decades, contributes to the dependence of communi ...
... community is necessarily more stable than the individual species that it contains and that the magnitude of this effect increases with diversity. This effect holds for all values of z. This effect, which has guided financial investment strategies for decades, contributes to the dependence of communi ...
Sterling, Bynum, et al. Why Should You Care About Biologic…
... geographically. Other definitions rely on highly- trained specialists being able to identify a suite of unique characteristics that are appropriate to “diagnose” a species and that show a pattern of ancestry and descent (the phylogenetic species concept). The latter definition generally leads to a g ...
... geographically. Other definitions rely on highly- trained specialists being able to identify a suite of unique characteristics that are appropriate to “diagnose” a species and that show a pattern of ancestry and descent (the phylogenetic species concept). The latter definition generally leads to a g ...
Tree species distributions and local habitat variation in the Amazon
... & Foster 1986; Pitman et al. 1999, 2001), and for these species, factors controlling abundance remain unknown. The importance of soil gradients to tree diversity is thus a quantitative proposition: some species respond strongly to soil type, while others are generalists, and just how much each speci ...
... & Foster 1986; Pitman et al. 1999, 2001), and for these species, factors controlling abundance remain unknown. The importance of soil gradients to tree diversity is thus a quantitative proposition: some species respond strongly to soil type, while others are generalists, and just how much each speci ...
NEWS
... Trinity BioBlitz was launched in the main square by Èanna Ní Lamhna, one of Ireland’s much recognised and loved wildlife presenters and environmental educators. The Campus was explored and investigated by teams of keen wildlife recorders who were led by experts in botany, zoolog ...
... Trinity BioBlitz was launched in the main square by Èanna Ní Lamhna, one of Ireland’s much recognised and loved wildlife presenters and environmental educators. The Campus was explored and investigated by teams of keen wildlife recorders who were led by experts in botany, zoolog ...
THE ADVANTAGES OF USING ARTHROPODS IN ECOSYSTEM
... tain only a part of the original gene pool and often are subject to substantial genetic drift and loss of genetic diversity (Brown 1992). Geographically circumscribed species with little genetic diversity have proven highly prone to extinction (Ehrlich 1992). Genetic diversity of arthropod populati ...
... tain only a part of the original gene pool and often are subject to substantial genetic drift and loss of genetic diversity (Brown 1992). Geographically circumscribed species with little genetic diversity have proven highly prone to extinction (Ehrlich 1992). Genetic diversity of arthropod populati ...
Why the Bushland Conservation Fund is needed
... The south west of WA is the only Australian area identified as one of twenty-five global ‘biodiversity hotspots for conservation priorities’. Within the south west there are eight or nine nodes of species richness deserving recognition in their own right. Despite its rich biodiversity heritage, 95% ...
... The south west of WA is the only Australian area identified as one of twenty-five global ‘biodiversity hotspots for conservation priorities’. Within the south west there are eight or nine nodes of species richness deserving recognition in their own right. Despite its rich biodiversity heritage, 95% ...
Slide 1
... Species diversity is related to genetic diversity. The more genetically diverse a species is, the greater its chances of surviving disturbances. So as human activity reduces genetic diversity, species are put at a greater risk for extinction. Species diversity is also linked to ecosystem diversity. ...
... Species diversity is related to genetic diversity. The more genetically diverse a species is, the greater its chances of surviving disturbances. So as human activity reduces genetic diversity, species are put at a greater risk for extinction. Species diversity is also linked to ecosystem diversity. ...
6.3 Biodiversity - Mater Academy of International Studies
... Species diversity is related to genetic diversity. The more genetically diverse a species is, the greater its chances of surviving disturbances. So as human activity reduces genetic diversity, species are put at a greater risk for extinction. Species diversity is also linked to ecosystem diversity. ...
... Species diversity is related to genetic diversity. The more genetically diverse a species is, the greater its chances of surviving disturbances. So as human activity reduces genetic diversity, species are put at a greater risk for extinction. Species diversity is also linked to ecosystem diversity. ...
species diversity and community structure in forest fragments
... China and compared them with those collected from a well protected large natural reserve, the Dinghu Mountain Biosphere Reserve (Dinghu). Our data indicated that the forest fragments contained lower mean plot species richness compared with Dinghu but total species richness of the plots as a network ...
... China and compared them with those collected from a well protected large natural reserve, the Dinghu Mountain Biosphere Reserve (Dinghu). Our data indicated that the forest fragments contained lower mean plot species richness compared with Dinghu but total species richness of the plots as a network ...
Biodiversity Research
... of life. It is one of the very characteristics of animated nature to keep producing new forms – some successful, some less so; some rare, some widespread; some durable, some short-lived. But the ongoing quest for the fundamental laws of nature was intensely focused on that which is uniform and unive ...
... of life. It is one of the very characteristics of animated nature to keep producing new forms – some successful, some less so; some rare, some widespread; some durable, some short-lived. But the ongoing quest for the fundamental laws of nature was intensely focused on that which is uniform and unive ...
Loss of mammalian species from the South American Gran Chaco
... DEFAUNATION AT A GLOBAL SCALE Habitat loss or fragmentation threatens mammals through the loss of food (plants or prey), shelter and increased predation risk (Pimm et al. 1988, Schipper et al. 2008). Large animals at higher trophic levels are most vulnerable to habitat destruction and poaching, sinc ...
... DEFAUNATION AT A GLOBAL SCALE Habitat loss or fragmentation threatens mammals through the loss of food (plants or prey), shelter and increased predation risk (Pimm et al. 1988, Schipper et al. 2008). Large animals at higher trophic levels are most vulnerable to habitat destruction and poaching, sinc ...
The world's richest tadpole communities show functional redundancy and low functional
... and SR show a one by one relationship, all species are different and contribute equally. Deviations from this pattern occur with differences in species contribution, e.g., if SR changes but functional diversity remains constant, the additional or diminished species do not exhibit unique ecological t ...
... and SR show a one by one relationship, all species are different and contribute equally. Deviations from this pattern occur with differences in species contribution, e.g., if SR changes but functional diversity remains constant, the additional or diminished species do not exhibit unique ecological t ...
Latitudinal species diversity gradient of marine zooplankton for the
... North Atlantic species diversity distributions of modern, LGM, LIG and Pliocene time slices are shown in Fig. 1. Modern species diversity is highest in mid-latitudes off North America and in low- to mid-latitudes along the northwestern coast of Africa. During the LGM, this coastal African diversity ...
... North Atlantic species diversity distributions of modern, LGM, LIG and Pliocene time slices are shown in Fig. 1. Modern species diversity is highest in mid-latitudes off North America and in low- to mid-latitudes along the northwestern coast of Africa. During the LGM, this coastal African diversity ...
Ex-situ conservation
... extinction and captive breeding for future re-introduction programmes. Institutions make the most out of their ex-situ collections by using them in the wider spectrum of conservation activities, ie. through the production and assimilation of material for research, conservation education 12 and capac ...
... extinction and captive breeding for future re-introduction programmes. Institutions make the most out of their ex-situ collections by using them in the wider spectrum of conservation activities, ie. through the production and assimilation of material for research, conservation education 12 and capac ...
Ecological and Evolutionary Drivers of Geographic Variation in
... replicates and thus not overlap too much in species composition ( Jetz & Fine 2012). Comprehensive lists of the diversity and phylogenetic relationships of the resident biota must be available for these regions as well as accurate region-wide data on the various drivers hypothesized to drive diversi ...
... replicates and thus not overlap too much in species composition ( Jetz & Fine 2012). Comprehensive lists of the diversity and phylogenetic relationships of the resident biota must be available for these regions as well as accurate region-wide data on the various drivers hypothesized to drive diversi ...
Tropical Andes
The Tropical Andes is a subregion of the Andes spanning all of the Andes except the southern mediterranean and temperate zones. The Tropical Andes area spans 1,542,644 km2.