Use of Aquatic Herbicide Imazamox Supplemental Environmental Impact
... Table 2-1 Aquatic macrophytes controlled by Clearcast® with foliar applications........................................ 2-3 Table 3-1 Distribution and ecology of potential submerged, floating-leaved and floating target macrophyte species .............................................................. ...
... Table 2-1 Aquatic macrophytes controlled by Clearcast® with foliar applications........................................ 2-3 Table 3-1 Distribution and ecology of potential submerged, floating-leaved and floating target macrophyte species .............................................................. ...
Unifying sources and sinks in ecology andEarth sciences
... The paired source and sink concepts are used increasingly in ecology and Earth sciences, but they have evolved in divergent directions, hampering communication across disciplines. We propose a conceptual framework that unifies existing definitions, and review their most significant consequences for ...
... The paired source and sink concepts are used increasingly in ecology and Earth sciences, but they have evolved in divergent directions, hampering communication across disciplines. We propose a conceptual framework that unifies existing definitions, and review their most significant consequences for ...
The significance of ratios of detritus types and micro
... focus usually on single resource types, although consumers in nature are likely to encounter mixtures of resource types that may affect whether competition results in exclusion or coexistence. 2. The invasive mosquito Aedes albopictus is capable of excluding the native mosquito Ochlerotatus triseria ...
... focus usually on single resource types, although consumers in nature are likely to encounter mixtures of resource types that may affect whether competition results in exclusion or coexistence. 2. The invasive mosquito Aedes albopictus is capable of excluding the native mosquito Ochlerotatus triseria ...
Allometry – Relations to Energy and Abundance
... light, plant material, prey organisms, dead organic matter, etc.) for metabolism, growth and reproduction. I concentrated on invertebrate organisms to investigate their energetic demand and the consequences of different energetic needs of various organisms (different phylogenetic groups) for commun ...
... light, plant material, prey organisms, dead organic matter, etc.) for metabolism, growth and reproduction. I concentrated on invertebrate organisms to investigate their energetic demand and the consequences of different energetic needs of various organisms (different phylogenetic groups) for commun ...
Grassland Ecosystems Black-footed Ferrets
... they learn to hunt prairie dogs and live like wild ferrets. Since reintroductions began in 1991, black-footed ferrets have been released at 17 sites in the United States, one site in Mexico and one site in Canada. Released black-footed ferrets are monitored using microchips that have been implanted ...
... they learn to hunt prairie dogs and live like wild ferrets. Since reintroductions began in 1991, black-footed ferrets have been released at 17 sites in the United States, one site in Mexico and one site in Canada. Released black-footed ferrets are monitored using microchips that have been implanted ...
Litter feedbacks, evolutionary change and exotic plant invasion Maarten B. Eppinga
... assumed to be relatively fast as compared to other processes in the system (i.e. cRate is relatively large). Hence, a quasi-steady-state approach can be used, meaning that light availability is assumed to equilibrate instantaneously (e.g. Reynolds & Pacala 1993; Table 1,2) The model also includes a ...
... assumed to be relatively fast as compared to other processes in the system (i.e. cRate is relatively large). Hence, a quasi-steady-state approach can be used, meaning that light availability is assumed to equilibrate instantaneously (e.g. Reynolds & Pacala 1993; Table 1,2) The model also includes a ...
Estuaries in the Balance - Center for Global Environmental Education
... Live links to Texas Knowledge and Essential Skills correlations are included at the beginning of each sub-module and video section in the Teacher Guide. The two stand-alone videos and each of the four sub-modules have the following components to support your teaching: • Synopsis: Brief description o ...
... Live links to Texas Knowledge and Essential Skills correlations are included at the beginning of each sub-module and video section in the Teacher Guide. The two stand-alone videos and each of the four sub-modules have the following components to support your teaching: • Synopsis: Brief description o ...
Productivity, dispersal and the coexistence of intraguild predators
... IGP is strong and/or when the Intraguild Prey has an overall advantage, and impedes coexistence when the trade-off is weak and/or when the Intraguild Predator has an overall advantage. Second, the Intraguild Prey’s abundance–productivity relationship depends crucially on the dispersal rate of the In ...
... IGP is strong and/or when the Intraguild Prey has an overall advantage, and impedes coexistence when the trade-off is weak and/or when the Intraguild Predator has an overall advantage. Second, the Intraguild Prey’s abundance–productivity relationship depends crucially on the dispersal rate of the In ...
SUCCESSION AND STABILITY
... soil depth and depth of all major soil horizons show significant increase from pioneer community 9 Soil properties (influencing the kinds of organisms that can grow) also changed during succession, i.e., ...
... soil depth and depth of all major soil horizons show significant increase from pioneer community 9 Soil properties (influencing the kinds of organisms that can grow) also changed during succession, i.e., ...
Relative impacts of copepods, cladocerans and
... eutrophic lakes; predation pressure on mesozooplankton appears to be low as there are few invertebrate predators and no obligate planktivores (Chapman and Green, 1987). Thus, the crustacean zooplankton may be the 'top predators' in the pelagic zone of many New Zealand lakes for considerable periods ...
... eutrophic lakes; predation pressure on mesozooplankton appears to be low as there are few invertebrate predators and no obligate planktivores (Chapman and Green, 1987). Thus, the crustacean zooplankton may be the 'top predators' in the pelagic zone of many New Zealand lakes for considerable periods ...
Assessment of environmental management effects in a shallow
... are still subject of debate (e.g. Duarte, 1995). Algal harvesting removes a source of organic carbon and nutrients from the system, reducing the likelihood of future anoxic conditions in the basin (Lenzi and Mattei, 1998; Lavery et al., 1999). In the long-term, such management activities can facilit ...
... are still subject of debate (e.g. Duarte, 1995). Algal harvesting removes a source of organic carbon and nutrients from the system, reducing the likelihood of future anoxic conditions in the basin (Lenzi and Mattei, 1998; Lavery et al., 1999). In the long-term, such management activities can facilit ...
Benthic Invertebrate Fauna, Small Streams
... Incredibly, there are many headwater invertebrate species that remain undescribed in both isolated and populated regions of the world. With the great diversity of foods available for consumption by invertebrates (i.e., deposited and retained on substrates, or suspended in the water column), it is no ...
... Incredibly, there are many headwater invertebrate species that remain undescribed in both isolated and populated regions of the world. With the great diversity of foods available for consumption by invertebrates (i.e., deposited and retained on substrates, or suspended in the water column), it is no ...
Lesson Overview
... energy through the process of photosynthesis. Photosynthesis captures light energy and uses it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates. This process adds oxygen to the atmosphere and removes carbon dioxide. Plants are the main photo ...
... energy through the process of photosynthesis. Photosynthesis captures light energy and uses it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates. This process adds oxygen to the atmosphere and removes carbon dioxide. Plants are the main photo ...
How top consumers structure food webs with multiple pathways of
... In the context of food webs ontogeny splits a population node into at least two stagespecific nodes (juveniles and adults), which are linked through maturation and reproduction. These stage-specific nodes may differ in their feeding links to both potential prey and potential predators. In spite of i ...
... In the context of food webs ontogeny splits a population node into at least two stagespecific nodes (juveniles and adults), which are linked through maturation and reproduction. These stage-specific nodes may differ in their feeding links to both potential prey and potential predators. In spite of i ...
Legume presence increases photosynthesis and N concentrations
... The dependence of photosynthesis on nitrogenous compounds results in a general positive relationship between light-saturated photosynthetic rate (A) and leaf N concentration (Reich et al. 1997; Peterson et al. 1999). Growth and physiological responses to CO2 enrichment or varied N availability have ...
... The dependence of photosynthesis on nitrogenous compounds results in a general positive relationship between light-saturated photosynthetic rate (A) and leaf N concentration (Reich et al. 1997; Peterson et al. 1999). Growth and physiological responses to CO2 enrichment or varied N availability have ...
Full text - SFU`s Summit
... stack or bottom-heavy. There is 4-5 times more biomass at the largest body-sizes than would be expected given observed PPMR. I hypothesise that the most plausible explanation is energetic subsidies. Using the same fish assemblage I show how two foundational components of habitat complexity (substrat ...
... stack or bottom-heavy. There is 4-5 times more biomass at the largest body-sizes than would be expected given observed PPMR. I hypothesise that the most plausible explanation is energetic subsidies. Using the same fish assemblage I show how two foundational components of habitat complexity (substrat ...
Opens external link in new window
... This review is a product of the Livestock Environmental Assessment and Performance (LEAP) Partnership. The initial objective of this review was to provide the members LEAP Technical Advisory Group (TAG) on biodiversity with a common ground of knowledge on the main biodiversity indicators and assessm ...
... This review is a product of the Livestock Environmental Assessment and Performance (LEAP) Partnership. The initial objective of this review was to provide the members LEAP Technical Advisory Group (TAG) on biodiversity with a common ground of knowledge on the main biodiversity indicators and assessm ...
2014 - CSU, Chico
... Thesis advisor: Larry Hanne [email protected] Phosphate, a limiting nutrient required for all life forms and essential for high yield crop production, is an insecure, non-renewable resource. Only 20% of applied phosphate reaches the intended field plants. In an effort towards improving fertilizati ...
... Thesis advisor: Larry Hanne [email protected] Phosphate, a limiting nutrient required for all life forms and essential for high yield crop production, is an insecure, non-renewable resource. Only 20% of applied phosphate reaches the intended field plants. In an effort towards improving fertilizati ...
Allocation, stress tolerance and carbon transport
... still many questions that remain about how plants invest carbon during their lifetimes (Körner, 2003, Sala et al., 2012) and how carbon allocation affects many ecological processes ranging from community assembly to carbon cycling (Grime, 2006, Migliavacca et al., 2011). The majority of carbon used ...
... still many questions that remain about how plants invest carbon during their lifetimes (Körner, 2003, Sala et al., 2012) and how carbon allocation affects many ecological processes ranging from community assembly to carbon cycling (Grime, 2006, Migliavacca et al., 2011). The majority of carbon used ...
carrying capacity: a critique of the concept al~ its usefulness
... The defining of carrying capacity must not be approached in a superficial or over-simplistic manner. Weeden (1974) states the following: "In its traditional biological context, carrying capacity is a simple abstraction: the ability of an area or ecosystem to absorb stress without disruption of its b ...
... The defining of carrying capacity must not be approached in a superficial or over-simplistic manner. Weeden (1974) states the following: "In its traditional biological context, carrying capacity is a simple abstraction: the ability of an area or ecosystem to absorb stress without disruption of its b ...
Ecological Effects of Allelopathic Plants – a Review
... Chemicals released from plants and imposing allelopathic influences are termed allelochemicals or allelochemics. Most allelochemicals are classified as secondary metabolites and are produced as offshoots of the primary metabolic pathways of the plant. Often, their functioning in the plant is unknown ...
... Chemicals released from plants and imposing allelopathic influences are termed allelochemicals or allelochemics. Most allelochemicals are classified as secondary metabolites and are produced as offshoots of the primary metabolic pathways of the plant. Often, their functioning in the plant is unknown ...
Living with Possums in South Australia
... whether there is any need to take action. You have a legal responsibility to deal with a possum problem in a humane manner. Managing the problem will involve a time commitment, often some monetary cost and altered practices. Combining a range of deterrents simultaneously should reduce or eliminate t ...
... whether there is any need to take action. You have a legal responsibility to deal with a possum problem in a humane manner. Managing the problem will involve a time commitment, often some monetary cost and altered practices. Combining a range of deterrents simultaneously should reduce or eliminate t ...
Predator diversity and identity drive interaction strength and trophic
... different niche (Chang 1996, Snyder and Ives 2003) or targets different life history stages of the prey. This is similar to the notion of ‘‘complementarity’’ among plants in resource use, which would cause a monotonic increase in productivity with increased plant diversity (e.g., Tilman et al. 1996) ...
... different niche (Chang 1996, Snyder and Ives 2003) or targets different life history stages of the prey. This is similar to the notion of ‘‘complementarity’’ among plants in resource use, which would cause a monotonic increase in productivity with increased plant diversity (e.g., Tilman et al. 1996) ...
predator diversity and identity drive interaction strength and trophic
... different niche (Chang 1996, Snyder and Ives 2003) or targets different life history stages of the prey. This is similar to the notion of ‘‘complementarity’’ among plants in resource use, which would cause a monotonic increase in productivity with increased plant diversity (e.g., Tilman et al. 1996) ...
... different niche (Chang 1996, Snyder and Ives 2003) or targets different life history stages of the prey. This is similar to the notion of ‘‘complementarity’’ among plants in resource use, which would cause a monotonic increase in productivity with increased plant diversity (e.g., Tilman et al. 1996) ...