Foraging behaviour and diet of an ectothermic herbivore: Testudo
... Herbivorous vertebrates of arid regions are frequently faced with inadequate food quality, quantity or both. The time and energy devoted to foraging is vital to balancing their energy budgets. For desert ectotherms, a low metabolism should be advantageous, reducing their total energy requirement, bu ...
... Herbivorous vertebrates of arid regions are frequently faced with inadequate food quality, quantity or both. The time and energy devoted to foraging is vital to balancing their energy budgets. For desert ectotherms, a low metabolism should be advantageous, reducing their total energy requirement, bu ...
Do herbivores exert top-down effects in Neotropical savannas
... assess the relative importance of top-down and bottomup effects. Furthermore, although mammalian grazers and browsers are indeed rare in Neotropical savannas (Marinho-Filho et al. 2002), these ecosystems contain a diverse and abundant community of herbivorous insects (Marquis et al. 2001). This comm ...
... assess the relative importance of top-down and bottomup effects. Furthermore, although mammalian grazers and browsers are indeed rare in Neotropical savannas (Marinho-Filho et al. 2002), these ecosystems contain a diverse and abundant community of herbivorous insects (Marquis et al. 2001). This comm ...
Plant diversity increases resistance to invasion in the absence of
... were equidistant (3.25 cm) from the center. Upon germination, seedlings were weeded to a final density of one seedling per position within each pot. Plants were staked to confine them to a limited region around the pot and to limit their effects on neighboring pots. To ensure constant photoperiod th ...
... were equidistant (3.25 cm) from the center. Upon germination, seedlings were weeded to a final density of one seedling per position within each pot. Plants were staked to confine them to a limited region around the pot and to limit their effects on neighboring pots. To ensure constant photoperiod th ...
symbiosis in eco-industrial park: lessons on planning a symbiotic city
... is called an “Industrial Ecosystem” or an “Eco-Industrial Park -EIP.” A recent publication by Sharma (2013), on the landscape of industry presents a transformation of eco-industrial park through history but to orient you briefly, the EIP was inspired by food webs in natural ecosystem and was concept ...
... is called an “Industrial Ecosystem” or an “Eco-Industrial Park -EIP.” A recent publication by Sharma (2013), on the landscape of industry presents a transformation of eco-industrial park through history but to orient you briefly, the EIP was inspired by food webs in natural ecosystem and was concept ...
Algal Biomass and Biodiesel Production
... loss, due to the cutting of existing forests and the utilization of ecological importance areas [Renewable Fuel Agency, 200]. Biodiesel may also be disadvantageous when replacing crops used for human consumption or if its feedstocks are cultivated in forests and other critical habitats with associat ...
... loss, due to the cutting of existing forests and the utilization of ecological importance areas [Renewable Fuel Agency, 200]. Biodiesel may also be disadvantageous when replacing crops used for human consumption or if its feedstocks are cultivated in forests and other critical habitats with associat ...
Research in environmental sciences in France
... and climate change In the 1990s, France began several air-quality and wastetreatment initiatives. Environmental protection became a national priority with the creation of the Agence de l’environnement et de la maîtrise de l’énergie (ADEME, environment and energy security agency) and the adoption of ...
... and climate change In the 1990s, France began several air-quality and wastetreatment initiatives. Environmental protection became a national priority with the creation of the Agence de l’environnement et de la maîtrise de l’énergie (ADEME, environment and energy security agency) and the adoption of ...
alteration of ecosystem nitrogen dynamics by exotic plants: a case
... rate, or tissue quality, would be expected to overlap with native species in their effects on resources, and thus interact with residents in a competitive manner that would likely result in similar effects on ecosystem processes. We suggest that these species can still cause ecosystem change, but th ...
... rate, or tissue quality, would be expected to overlap with native species in their effects on resources, and thus interact with residents in a competitive manner that would likely result in similar effects on ecosystem processes. We suggest that these species can still cause ecosystem change, but th ...
Pausch J., Kramer S., Scharroba A., Scheunemann N
... questioning whether there are enough trophic niches for the high number of species in soil. Over the last decade, stable C and nitrogen (N) isotope analyses have been used increasingly to disentangle soil food webs, with shifts in the natural abundance of 13C and ...
... questioning whether there are enough trophic niches for the high number of species in soil. Over the last decade, stable C and nitrogen (N) isotope analyses have been used increasingly to disentangle soil food webs, with shifts in the natural abundance of 13C and ...
Chapter 2
... surface of the groundwater. The contaminants will then be transported along with the flowing groundwater, so understanding the hydrodynamics will allow for prediction of where the spill will spread. Why might understanding the application of Darcy’s law to sediments under a wetland be important when ...
... surface of the groundwater. The contaminants will then be transported along with the flowing groundwater, so understanding the hydrodynamics will allow for prediction of where the spill will spread. Why might understanding the application of Darcy’s law to sediments under a wetland be important when ...
Coexistence, niches and biodiversity effects on ecosystem functioning
... can be due to a whole variety of biological mechanisms: for example, species might specialise on different resources (McKane et al. 2002) or take up the same resources at different times or from different spatial locations (Hooper & Vitousek 1998; Fargione & Tilman 2005). In addition, niche differen ...
... can be due to a whole variety of biological mechanisms: for example, species might specialise on different resources (McKane et al. 2002) or take up the same resources at different times or from different spatial locations (Hooper & Vitousek 1998; Fargione & Tilman 2005). In addition, niche differen ...
EOC notecard review - week of 03.14.16.notebook
... EOC notecard review week of 03.14.16.notebook ...
... EOC notecard review week of 03.14.16.notebook ...
10 Interactions of Life
... A population is the number of organisms of the same species that live in an ecosystem at the same time. When investigating how populations live in an ecosystem, an important measure is population density. Population density is the size of the population compared to the amount of space available. To ...
... A population is the number of organisms of the same species that live in an ecosystem at the same time. When investigating how populations live in an ecosystem, an important measure is population density. Population density is the size of the population compared to the amount of space available. To ...
General enquiries on this form should be made to:
... high for species recorded at each site. A more sophisticated capability for scenario testing will follow as models improve and are better integrated. 10. The relevance of the initial model tests to achievement of Habitat Action Plan targets and expected change in UK and country-level indicators of b ...
... high for species recorded at each site. A more sophisticated capability for scenario testing will follow as models improve and are better integrated. 10. The relevance of the initial model tests to achievement of Habitat Action Plan targets and expected change in UK and country-level indicators of b ...
Three selected ecological observations interpreted in
... from detritus equivalents to kJ by multiplying by 18.7. The derivation of this equation can be found in Jørgensen et al. (1995), Jørgensen and Padisak (1996), Jørgensen (1997); Jørgensen and De Bernardi (1998); Jørgensen et al. (2000). This equation presumes that exergy from the ecosystem is found r ...
... from detritus equivalents to kJ by multiplying by 18.7. The derivation of this equation can be found in Jørgensen et al. (1995), Jørgensen and Padisak (1996), Jørgensen (1997); Jørgensen and De Bernardi (1998); Jørgensen et al. (2000). This equation presumes that exergy from the ecosystem is found r ...
Stream Care Guide
... • Removal of stream wood decreases cover habitat for fish and other wildlife and can alter pool development. • Loss of habitat can occur from the removal of native plants or the construction of wooden or concrete walls along stream banks. • Impervious surfaces such as roofs and roads reduce the amo ...
... • Removal of stream wood decreases cover habitat for fish and other wildlife and can alter pool development. • Loss of habitat can occur from the removal of native plants or the construction of wooden or concrete walls along stream banks. • Impervious surfaces such as roofs and roads reduce the amo ...
Restoring native ecosystems in urban Auckland: urban soils
... and other naturalised non-native plants, with the nearest patch of (secondary) native forest vegetation 500 m away. The riparian vegetation neighbouring the Sherwood Avenue site (36.85880ºS, 174.63878ºE) was dominated by woody weeds, especially Paraserianthes lophantha (brush wattle) with some Chrys ...
... and other naturalised non-native plants, with the nearest patch of (secondary) native forest vegetation 500 m away. The riparian vegetation neighbouring the Sherwood Avenue site (36.85880ºS, 174.63878ºE) was dominated by woody weeds, especially Paraserianthes lophantha (brush wattle) with some Chrys ...
Community assembly and invasion: An experimental Joseph Fargione* , Cynthia S. Brown
... a structured, nonneutral assembly process in which resident species inhibit, via resource consumption, the establishment and growth of species with similar resource use patterns and in which the success of invaders decreases as diversity increases. In our experiment, species in each of four function ...
... a structured, nonneutral assembly process in which resident species inhibit, via resource consumption, the establishment and growth of species with similar resource use patterns and in which the success of invaders decreases as diversity increases. In our experiment, species in each of four function ...
Low biodiversity state persists two decades after cessation of nutrient enrichment
... All statistical tests were conducted in R 2.13.2 (www.r-project.org). To summarise temporal trends in plant species richness, plant species diversity and E. repens relative biomass, we fit loess regressions using the geom_smooth function in the ggplot2 package (Wickham 2010). To test for a hystereti ...
... All statistical tests were conducted in R 2.13.2 (www.r-project.org). To summarise temporal trends in plant species richness, plant species diversity and E. repens relative biomass, we fit loess regressions using the geom_smooth function in the ggplot2 package (Wickham 2010). To test for a hystereti ...
Green Invaders: Study Guide
... need to survive. Because we buy life’s necessities neatly packaged from a wide variety of stores, many Americans may be out of touch with the fact that the products we buy are either directly or indirectly derived from something found naturally on our Earth. It is estimated that at least 40,000 diff ...
... need to survive. Because we buy life’s necessities neatly packaged from a wide variety of stores, many Americans may be out of touch with the fact that the products we buy are either directly or indirectly derived from something found naturally on our Earth. It is estimated that at least 40,000 diff ...
The Lesson of the Kaibab
... the maximum number of organisms that an area can support on a sustained basis. The density of a population may produce such profound changes in the environment that the environment becomes unsuitable for the survival of that species. For instance, overgrazing of land may make the land unable to supp ...
... the maximum number of organisms that an area can support on a sustained basis. The density of a population may produce such profound changes in the environment that the environment becomes unsuitable for the survival of that species. For instance, overgrazing of land may make the land unable to supp ...
Rossberg, A. G. (2012). Food webs. In A. Hastings
... set of vulnerability traits vi and a set of foraging traits fi such that, with an appropriate choice of the link-strength function c(·, ·), trophic link strength is given by Cij = c(vi , fj ). Vulnerability and foraging traits may not be independent. Body size or preferred habitat, for example, affe ...
... set of vulnerability traits vi and a set of foraging traits fi such that, with an appropriate choice of the link-strength function c(·, ·), trophic link strength is given by Cij = c(vi , fj ). Vulnerability and foraging traits may not be independent. Body size or preferred habitat, for example, affe ...
The Case of the Missing Anurans - Center for Global Environmental
... A proper inquiry into this situation would require the services of some top investigators. They would be responsible for delving into the different aspects of this case to form a complete picture for the solution of this mystery. There are various clues available in “The Case of the Missing Anurans” ...
... A proper inquiry into this situation would require the services of some top investigators. They would be responsible for delving into the different aspects of this case to form a complete picture for the solution of this mystery. There are various clues available in “The Case of the Missing Anurans” ...
A Neighborhood View of Interactions among Individual Plants
... space is restricted to growth (Eriksson 1986). A plant cannot relocate from an unfavorable location to a more favorable one. Rather, it grows as well as possible where it finds itself or it dies. Basic plant biology suggests that plant–plant interactions are inherently local in nature. For example, i ...
... space is restricted to growth (Eriksson 1986). A plant cannot relocate from an unfavorable location to a more favorable one. Rather, it grows as well as possible where it finds itself or it dies. Basic plant biology suggests that plant–plant interactions are inherently local in nature. For example, i ...