Recruitment and post-recruit immigration
... size are the result of either recruitment of larvae from other reefs (Williams et al. 1984), or the movement of post-recruits (juveniles and adults) from other patches within the same reef. Most research on reef fish population dynamics has focused on the delivery of larval fishes to whole reefs and ...
... size are the result of either recruitment of larvae from other reefs (Williams et al. 1984), or the movement of post-recruits (juveniles and adults) from other patches within the same reef. Most research on reef fish population dynamics has focused on the delivery of larval fishes to whole reefs and ...
Competition in lichen communities
... moisture supply, and low availability of nutrients (Grime, 1979). There is abundant evidence that under these conditions, lichens sequester a high proportion of photosynthate for stress resistance rather than growth (Farrer, 1973). Hence, whether or not competition is a significant factor in symbiot ...
... moisture supply, and low availability of nutrients (Grime, 1979). There is abundant evidence that under these conditions, lichens sequester a high proportion of photosynthate for stress resistance rather than growth (Farrer, 1973). Hence, whether or not competition is a significant factor in symbiot ...
Niche theory and guilds
... Ecological niches can thus be defined in terms of: -response functions: how species are distributed on environmental gradients with respect to limitation and optimal performance (a physiological view, prevalent among plant ecologists), i.e., a species’ response to the environment (Whose ideas follow ...
... Ecological niches can thus be defined in terms of: -response functions: how species are distributed on environmental gradients with respect to limitation and optimal performance (a physiological view, prevalent among plant ecologists), i.e., a species’ response to the environment (Whose ideas follow ...
Niche partitioning in a sympatric cryptic species complex
... Approximately 250 species of bumblebees exist worldwide, distributed across the temperate, alpine, and arctic regions of the Northern Hemisphere and also South America. In much of this range, it is common for multiple species to occur in sympatry despite high niche overlap. Morphologically, most bum ...
... Approximately 250 species of bumblebees exist worldwide, distributed across the temperate, alpine, and arctic regions of the Northern Hemisphere and also South America. In much of this range, it is common for multiple species to occur in sympatry despite high niche overlap. Morphologically, most bum ...
PPT: Population Ecology
... • In aquatic systems, nutrients are most limiting. If extra nutrients are ...
... • In aquatic systems, nutrients are most limiting. If extra nutrients are ...
HUMANPOPULATIONDYNAMICS new student
... Over time species may _______ their carrying capacity by developing __________. Some species maintain their carrying capacity by _________ to other areas. So far, technological, social, and other cultural changes have _________ the earth’s carrying capacity for humans. ...
... Over time species may _______ their carrying capacity by developing __________. Some species maintain their carrying capacity by _________ to other areas. So far, technological, social, and other cultural changes have _________ the earth’s carrying capacity for humans. ...
Slide 1
... From D’Antonio et al. (2000) Series of 14 study sites (#’s) from eastern coastal lowlands to seasonal submontane zone on Big Island, Hawaii Lowlands: warm tropical zone with 1500-2000 mm yr-1, but dry summers; elevation from sea level to 400 m Submontane: several °C cooler, but similar amount and se ...
... From D’Antonio et al. (2000) Series of 14 study sites (#’s) from eastern coastal lowlands to seasonal submontane zone on Big Island, Hawaii Lowlands: warm tropical zone with 1500-2000 mm yr-1, but dry summers; elevation from sea level to 400 m Submontane: several °C cooler, but similar amount and se ...
Modeling species fitness in competitive environments
... through all resources must be sufficient to reproduce. In our model we can choose the initial distribution of newly born individuals. It can be chosen so that the relative vulnerability of offspring is taken into account, with K only suitably larger than Ks . Most of the above calculation steps are s ...
... through all resources must be sufficient to reproduce. In our model we can choose the initial distribution of newly born individuals. It can be chosen so that the relative vulnerability of offspring is taken into account, with K only suitably larger than Ks . Most of the above calculation steps are s ...
Interpreting the `selection effect` of biodiversity on ecosystem function
... additive partition partially analogous to the Price Equation; Loreau & Hector (2001) do not suggest any evolutionary analogue to the ‘complementarity effect’. Here I clarify the relationship between the ‘selection effect’ and natural selection in the Price Equation. I demonstrate that the ‘selection ...
... additive partition partially analogous to the Price Equation; Loreau & Hector (2001) do not suggest any evolutionary analogue to the ‘complementarity effect’. Here I clarify the relationship between the ‘selection effect’ and natural selection in the Price Equation. I demonstrate that the ‘selection ...
Biology 1020: Course Outline
... Structure and function as inter-related aspects of ecological systems The reciprocal relationships between pattern and process; patterns in nature reflect underlying processes, and processes in turn generate patterns. Environmental issues as the outcome of human ecological success; humans have becom ...
... Structure and function as inter-related aspects of ecological systems The reciprocal relationships between pattern and process; patterns in nature reflect underlying processes, and processes in turn generate patterns. Environmental issues as the outcome of human ecological success; humans have becom ...
BL / ENVS 403
... Influence of Resource Density: Investigate the effects of decreasing and increasing seed density by running experiments with a decreased resource density for seeds and separate experiments with an increased resource density for seeds. For both experiments, keep all other parameters at their default ...
... Influence of Resource Density: Investigate the effects of decreasing and increasing seed density by running experiments with a decreased resource density for seeds and separate experiments with an increased resource density for seeds. For both experiments, keep all other parameters at their default ...
Individualscale variation, speciesscale differences: inference
... aggregateÕ, rather than Ôanalyse the aggregateÕ; this may not be possible, but more often, the advantages can be simply unrecognised. Ecologists have studied the demographic responses of individuals for a long time, but the species-level parameters estimated in these studies aggregate over the varia ...
... aggregateÕ, rather than Ôanalyse the aggregateÕ; this may not be possible, but more often, the advantages can be simply unrecognised. Ecologists have studied the demographic responses of individuals for a long time, but the species-level parameters estimated in these studies aggregate over the varia ...
Here are some excerpts from various reports and articles of
... It has been argued that the input of nutrients from marine cage culture in the coastal zone has reached unsustainable levels in many areas, as severe ecosystem perturbation is now occurring or is likely. 205/ Nutrient levels from marine cage culture have been compared to sewage effluents...dilution ...
... It has been argued that the input of nutrients from marine cage culture in the coastal zone has reached unsustainable levels in many areas, as severe ecosystem perturbation is now occurring or is likely. 205/ Nutrient levels from marine cage culture have been compared to sewage effluents...dilution ...
Diversity, productivity and temporal stability in the economies ARTICLE IN PRESS
... contributes to many valuable ecosystem services such as carbon sequestration. Both models are capable of predicting the long-term persistence or stable coexistence of a large number of competing species if the species have the appropriate tradeoffs in their requirements for limiting resources and/or ...
... contributes to many valuable ecosystem services such as carbon sequestration. Both models are capable of predicting the long-term persistence or stable coexistence of a large number of competing species if the species have the appropriate tradeoffs in their requirements for limiting resources and/or ...
BIOLOGICAL WEED CONTROL VIA NUTRIENT COMPETITION: POTASSIUM LIMITATION OF DANDELIONS E A. T
... Abstract. Weedy plants are often controlled by the application of herbicides. Here we explore an alternative method of control. We suggest that the abundance of an undesired plant species (here dandelions: Taraxacum officinale) may be controlled by modifying interspecific competition via changes in ...
... Abstract. Weedy plants are often controlled by the application of herbicides. Here we explore an alternative method of control. We suggest that the abundance of an undesired plant species (here dandelions: Taraxacum officinale) may be controlled by modifying interspecific competition via changes in ...
Do communitylevel models describe community variation effectively?
... the ‘assemble and predict together’ strategies are expected to extrapolate beyond known assemblages. The authors also clarify that the ‘predict first, assemble later’ strategy does not consider patterns of species co-occurrence in the modelling process, whereas the ‘assemble and predict together’ st ...
... the ‘assemble and predict together’ strategies are expected to extrapolate beyond known assemblages. The authors also clarify that the ‘predict first, assemble later’ strategy does not consider patterns of species co-occurrence in the modelling process, whereas the ‘assemble and predict together’ st ...
Root competition can cause a decline in diversity with increased
... effects are possible, and that plants in all treatments experience intraspecific interactions. However, the hypotheses we test and our experiment focus on the effects of interspecific competition on the community.) The community with both root and shoot competition was simply a mixture of the seven ...
... effects are possible, and that plants in all treatments experience intraspecific interactions. However, the hypotheses we test and our experiment focus on the effects of interspecific competition on the community.) The community with both root and shoot competition was simply a mixture of the seven ...
Ch 14 Jeopardy review for test Interactions in ecosystems
... • The pattern of dispersion in which individuals may live close together in groups in order to facilitate mating, gain protection, or access to food resources ...
... • The pattern of dispersion in which individuals may live close together in groups in order to facilitate mating, gain protection, or access to food resources ...
Indirect Effects in - Department of Knowledge Technologies
... nontrophic interactions. It should also be noted that in nature many species are very well adapted to modify their community and habitat. ...
... nontrophic interactions. It should also be noted that in nature many species are very well adapted to modify their community and habitat. ...
Full text in pdf format
... yr-'). It is reassuring that field results provide verification of these assumptions. With respect to resource management, the results demonstrate the utility of using a yield-production population model for the management of a slow-growing longevous benthic invertebrate such as precious coral. Reco ...
... yr-'). It is reassuring that field results provide verification of these assumptions. With respect to resource management, the results demonstrate the utility of using a yield-production population model for the management of a slow-growing longevous benthic invertebrate such as precious coral. Reco ...
Drawing ecological inferences from coincident patterns of
... Schoener 2011). One manifestation of this has been a focus on the interaction between ecological and evolutionary processes in driving the ongoing dynamics of populations and communities. Studies of such eco-evolutionary dynamics have been subject to many reviews (e.g. Fussmann et al. 2007; Pelletie ...
... Schoener 2011). One manifestation of this has been a focus on the interaction between ecological and evolutionary processes in driving the ongoing dynamics of populations and communities. Studies of such eco-evolutionary dynamics have been subject to many reviews (e.g. Fussmann et al. 2007; Pelletie ...