Nutrient stoichiometry – Redfield ratios
... Nutrient : any needed substance that an organism obtains from its environment except O2, CO2, & H2O Ecological stoichiometry: - Ecological stoichiometry considers how the balance of energy & elements affect & are affected by organisms & their interactions in ecosystems. - seeks to discover how t ...
... Nutrient : any needed substance that an organism obtains from its environment except O2, CO2, & H2O Ecological stoichiometry: - Ecological stoichiometry considers how the balance of energy & elements affect & are affected by organisms & their interactions in ecosystems. - seeks to discover how t ...
GarcÃa-Roa, R., M. Iglesias-Carrasco, I. Garin-Barrio
... scarce, with only Arribas & Galán (2005) reporting on 29 Iberolacerta aranica eggs, confirming communal egglaying for the genus. Clutch sizes of 4.2 ± 0.7 eggs (mean = 3; range: 2–12; n = 14 clutches; Arribas 2004, Arribas & Galán 2005) have been described for I. aurelioi, which suggests our find to ...
... scarce, with only Arribas & Galán (2005) reporting on 29 Iberolacerta aranica eggs, confirming communal egglaying for the genus. Clutch sizes of 4.2 ± 0.7 eggs (mean = 3; range: 2–12; n = 14 clutches; Arribas 2004, Arribas & Galán 2005) have been described for I. aurelioi, which suggests our find to ...
Large Species Shifts Triggered by Small Forces
... to proceed gradually at first sight, but remarkably rapid shifts are known to occur. Although disrupting disturbances seem an obvious explanation for such shifts, evidence for large disturbances is not always apparent. Here we show that complex communities tend to move through occasional catastrophi ...
... to proceed gradually at first sight, but remarkably rapid shifts are known to occur. Although disrupting disturbances seem an obvious explanation for such shifts, evidence for large disturbances is not always apparent. Here we show that complex communities tend to move through occasional catastrophi ...
Ecological consequences of human niche
... agricultural crops was a complex process that carried along other species and transformed local ecosystems in diverse ways (Fig. 3 A–C). Crops often moved as part of ecological packages that included nondomesticated or weed species. In the European Neolithic, for example, some crop weeds derived ...
... agricultural crops was a complex process that carried along other species and transformed local ecosystems in diverse ways (Fig. 3 A–C). Crops often moved as part of ecological packages that included nondomesticated or weed species. In the European Neolithic, for example, some crop weeds derived ...
Appendix_GCB-formatted
... similar results were derived independently by Ohlberger et al. (2011) using more sophisticated data on perch Perca fluvitatilis physiological rates, which incorporated a more realistic, hump-shaped relationship between energy gain rate and temperature (i.e., temperature optimum). This suggests that, ...
... similar results were derived independently by Ohlberger et al. (2011) using more sophisticated data on perch Perca fluvitatilis physiological rates, which incorporated a more realistic, hump-shaped relationship between energy gain rate and temperature (i.e., temperature optimum). This suggests that, ...
assessment
... has responded well to fox control, with many populations in public land where fox control occurs now at greater abundance than previously (Morris et al. 1998). Some subpopulations within fox-proof fences have reached very high densities. The Southern Brown Bandicoot is omnivorous, eating both plants ...
... has responded well to fox control, with many populations in public land where fox control occurs now at greater abundance than previously (Morris et al. 1998). Some subpopulations within fox-proof fences have reached very high densities. The Southern Brown Bandicoot is omnivorous, eating both plants ...
Managing for ecosystem services Lowland Agriculture
... rainfall when soil is bare14,15. Weak Evidence:- A review of buffer strips in Northern Europe using arable fields buffered by grassland, short rotation forestry or coppice and undisturbed vegetation suggested a range of benefits, including the reduction in erosion via increased infiltration, sedimen ...
... rainfall when soil is bare14,15. Weak Evidence:- A review of buffer strips in Northern Europe using arable fields buffered by grassland, short rotation forestry or coppice and undisturbed vegetation suggested a range of benefits, including the reduction in erosion via increased infiltration, sedimen ...
Definitions
... relative frequency. For biological diversity these items are organized at many levels …. Thus the term biodiversity encompasses different ecosystems, species, genes and their relative abundance. (US Congress, Office of Technology Assessment, 1987). ...
... relative frequency. For biological diversity these items are organized at many levels …. Thus the term biodiversity encompasses different ecosystems, species, genes and their relative abundance. (US Congress, Office of Technology Assessment, 1987). ...
The role of nurse plants in the restoration of degraded environments
... species lift water stored in deep soil layers and release it near the soil surface. Once in the surface layers, the water can be used by understory plants, and improves their water status and growth rate. Nutrients in the understory are enhanced through litter and sediment accumulation, higher miner ...
... species lift water stored in deep soil layers and release it near the soil surface. Once in the surface layers, the water can be used by understory plants, and improves their water status and growth rate. Nutrients in the understory are enhanced through litter and sediment accumulation, higher miner ...
AP Environmental Science - East Pennsboro Area School District
... Explain the ecosystem approach to conserving biodiversity and how size, shape, and connectedness affect the number of species that will be protected. Discuss how carbon dioxide concentrations and temperatures have changed over time. Distinguish among global change, global climate change, and global ...
... Explain the ecosystem approach to conserving biodiversity and how size, shape, and connectedness affect the number of species that will be protected. Discuss how carbon dioxide concentrations and temperatures have changed over time. Distinguish among global change, global climate change, and global ...
The importance of large carnivores to healthy ecosystems
... top-down or bottom-up control. In the ecological sense, control means a qualitative or quantitative effect on ecosystem structure, function, and diversity (Menge 1992). Simplified, if bottom-up control dominates, the system is regulated by energy moving upward from lower to higher trophic levels. Th ...
... top-down or bottom-up control. In the ecological sense, control means a qualitative or quantitative effect on ecosystem structure, function, and diversity (Menge 1992). Simplified, if bottom-up control dominates, the system is regulated by energy moving upward from lower to higher trophic levels. Th ...
CV - Northern Arizona University
... Honors Thesis Title: An overview of biological invasions and an analysis of the impacts of alien house mice in a native Hawaiian ecosystem CURRENT APPOINT MENT Northern Arizona University 2015-present Assistant Professor Research Focus: Global biodiversity implications of mutualism disruption and ...
... Honors Thesis Title: An overview of biological invasions and an analysis of the impacts of alien house mice in a native Hawaiian ecosystem CURRENT APPOINT MENT Northern Arizona University 2015-present Assistant Professor Research Focus: Global biodiversity implications of mutualism disruption and ...
Going for the kill: observation of a wolf
... However, there are still many gaps in our knowledge related to the dynamics of wolf-hyaena interactions and the extent of competition that may occur. We recommend further studies that examine spatial and temporal resource partitioning between species and the direct and indirect effects of each speci ...
... However, there are still many gaps in our knowledge related to the dynamics of wolf-hyaena interactions and the extent of competition that may occur. We recommend further studies that examine spatial and temporal resource partitioning between species and the direct and indirect effects of each speci ...
Oak Savanna - WordPress.com
... It is important to educate landowners of the benefits of keeping oak savanna in their landscape since most of the remaining oak habitat is on private land. Oak savannas potential performance under predicted climate change conditions provide meaningful motivation for maintaining oak savanna on privat ...
... It is important to educate landowners of the benefits of keeping oak savanna in their landscape since most of the remaining oak habitat is on private land. Oak savannas potential performance under predicted climate change conditions provide meaningful motivation for maintaining oak savanna on privat ...
How does global change affect the strength of trophic interactions?
... food web can have consequences both for community structure and ecosystem processes. However ‘change’ is not limited to just the number of species in a community, but might include an alteration to such properties as precipitation, nutrient cycling and temperature, all of which are correlated with p ...
... food web can have consequences both for community structure and ecosystem processes. However ‘change’ is not limited to just the number of species in a community, but might include an alteration to such properties as precipitation, nutrient cycling and temperature, all of which are correlated with p ...
Document
... The area from the Australian Alps in Victoria to Atherton in Queensland (A2A) is essentially natural and unfragmented for 2800 north-south kilometres along sections of both the Great Dividing Range and the Great Escarpment of Eastern Australia (the great eastern ranges). In human terms, this natural ...
... The area from the Australian Alps in Victoria to Atherton in Queensland (A2A) is essentially natural and unfragmented for 2800 north-south kilometres along sections of both the Great Dividing Range and the Great Escarpment of Eastern Australia (the great eastern ranges). In human terms, this natural ...
Issue Summary for Great Lakes Coastal Wetlands
... Open and nearshore waters possess a full array of natural habitats required to meet the growth and reproductive needs of fish and wildlife. Open and nearshore waters harbor self-sustaining fish and wildlife communities that include reproducing native fish species, especially ciscos, lake whitefish, ...
... Open and nearshore waters possess a full array of natural habitats required to meet the growth and reproductive needs of fish and wildlife. Open and nearshore waters harbor self-sustaining fish and wildlife communities that include reproducing native fish species, especially ciscos, lake whitefish, ...
Ecology Unit
... nowhere else. Although cichlids are small fish, they were a major food resource for millions of people in the three countries surrounding the lake: Kenya, Uganda, and Tanzania. Popular for home aquariums because of their typically vivid colors, cichlids are almost unique among fish in the way they p ...
... nowhere else. Although cichlids are small fish, they were a major food resource for millions of people in the three countries surrounding the lake: Kenya, Uganda, and Tanzania. Popular for home aquariums because of their typically vivid colors, cichlids are almost unique among fish in the way they p ...
Mammal Community Structure in a World of Gradients
... altered fire regimes, hunting by humans, habitat change and habitat loss (Brashares et al., 2001; Fritz et al., 2003). Increases in human populations are often connected with loss of wildlife key resources (Fritz et al., 2003; Paper I). A general rule is that there is a positive relationship between ...
... altered fire regimes, hunting by humans, habitat change and habitat loss (Brashares et al., 2001; Fritz et al., 2003). Increases in human populations are often connected with loss of wildlife key resources (Fritz et al., 2003; Paper I). A general rule is that there is a positive relationship between ...
Eco Jeopardy 5
... Small animals in streams and creeks that are very susceptible to water pollution. ...
... Small animals in streams and creeks that are very susceptible to water pollution. ...
4-2 What Shapes an Ecosystem? Slide 1 of 39
... Components of an ecosystem can be changed by natural events, such as fires. When the disturbance is over, community interactions tend to restore the ecosystem to its original condition through secondary succession. ...
... Components of an ecosystem can be changed by natural events, such as fires. When the disturbance is over, community interactions tend to restore the ecosystem to its original condition through secondary succession. ...
Restoration ecology
Restoration ecology emerged as a separate field in ecology in the 1980s. It is the scientific study supporting the practice of ecological restoration, which is the practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human intervention and action. The term ""restoration ecology"" is therefore commonly used for the academic study of the process, whereas the term ""ecological restoration"" is commonly used for the actual project or process by restoration practitioners.