Scale-dependent interactions and community
... suggesting that either biotic (competition) or abiotic factors (recruitment failure, for instance because of increased inundation) limits forb establishment or survival within the Spartina zone. This would imply that facilitation prevails only at a certain distance, whereas other factors determine f ...
... suggesting that either biotic (competition) or abiotic factors (recruitment failure, for instance because of increased inundation) limits forb establishment or survival within the Spartina zone. This would imply that facilitation prevails only at a certain distance, whereas other factors determine f ...
Biology - Cumberland County School District
... 4.3 I can illustrate how all cell organelles work together by describing the step-by-step process of the translation of an mRNA strand into a protein and its subsequent processing by organelles so that the protein is appropriately packaged, labeled, and eventually exported by the cell 4.4 I can cont ...
... 4.3 I can illustrate how all cell organelles work together by describing the step-by-step process of the translation of an mRNA strand into a protein and its subsequent processing by organelles so that the protein is appropriately packaged, labeled, and eventually exported by the cell 4.4 I can cont ...
Traits underpinning desiccation resistance explain distribution
... from climate change and artificial regulation of groundwater resources due to land-use change will strongly influence the abundance, community composition and functioning of these organisms. Macro-detritivores, such as isopods, millipedes and earthworms, are important regulators of the turnover of d ...
... from climate change and artificial regulation of groundwater resources due to land-use change will strongly influence the abundance, community composition and functioning of these organisms. Macro-detritivores, such as isopods, millipedes and earthworms, are important regulators of the turnover of d ...
Fungal Community Ecology: A Hybrid Beast with a Molecular Master
... a good example. Although some of these fungi produce secondary compounds that protect their hosts from herbivory, their overall effects on plant fitness can change dramatically depending on environmental conditions or herbivore pressure (Saikkonen et al. 2004). Because these fungi are often present ...
... a good example. Although some of these fungi produce secondary compounds that protect their hosts from herbivory, their overall effects on plant fitness can change dramatically depending on environmental conditions or herbivore pressure (Saikkonen et al. 2004). Because these fungi are often present ...
alteration of ecosystem nitrogen dynamics by exotic plants: a case
... Abstract. Biological invaders can alter ecosystem processes via multiple pathways, yet few studies have compared the relative importance of these pathways. We assessed the impacts of exotic, invasive grasses on ecosystem nitrogen (N) cycling in the seasonal submontane woodlands of Hawaii Volcanoes N ...
... Abstract. Biological invaders can alter ecosystem processes via multiple pathways, yet few studies have compared the relative importance of these pathways. We assessed the impacts of exotic, invasive grasses on ecosystem nitrogen (N) cycling in the seasonal submontane woodlands of Hawaii Volcanoes N ...
Topological explanations, robustness and the multirealisability debate.
... 1. Why has this ecosystem stability properties ? Because S’ is a scale free network. topological explanation 2. « Why is S’ a scale free network ? » Because preying is built up according to a ...
... 1. Why has this ecosystem stability properties ? Because S’ is a scale free network. topological explanation 2. « Why is S’ a scale free network ? » Because preying is built up according to a ...
Sample Essay ( version)
... numerous examples of when, where, and how populations are limited, whether the population is one of birds, rats, trees, or cattle. The first three chapters are united by the fourth, in which Darwin describes natural selection. Up to this point, Darwin described only those factors that made natural s ...
... numerous examples of when, where, and how populations are limited, whether the population is one of birds, rats, trees, or cattle. The first three chapters are united by the fourth, in which Darwin describes natural selection. Up to this point, Darwin described only those factors that made natural s ...
11. Coevolution - NC State University
... takes all the running you can do, to keep in the same place.” In the context of host-parasite coevolution, the moving environment is the evolving parasite. Parasites are expected to evolve more rapidly than their host, because they have a greater relative evolutionary potential. In principle, we can ...
... takes all the running you can do, to keep in the same place.” In the context of host-parasite coevolution, the moving environment is the evolving parasite. Parasites are expected to evolve more rapidly than their host, because they have a greater relative evolutionary potential. In principle, we can ...
Peay et al 2008 - North American Mycoflora Project
... a good example. Although some of these fungi produce secondary compounds that protect their hosts from herbivory, their overall effects on plant fitness can change dramatically depending on environmental conditions or herbivore pressure (Saikkonen et al. 2004). Because these fungi are often present ...
... a good example. Although some of these fungi produce secondary compounds that protect their hosts from herbivory, their overall effects on plant fitness can change dramatically depending on environmental conditions or herbivore pressure (Saikkonen et al. 2004). Because these fungi are often present ...
Facilitation of fisheries by natural predators
... natural populations have historically been single prey and/or predator models (Quinn and Collie 2005, Marasco et al. 2007). Similarly, most models on the effects of sizeselective predation mortality have focused on a single prey species (but see Hülsmann et al. 2005), ignoring effects of interspecif ...
... natural populations have historically been single prey and/or predator models (Quinn and Collie 2005, Marasco et al. 2007). Similarly, most models on the effects of sizeselective predation mortality have focused on a single prey species (but see Hülsmann et al. 2005), ignoring effects of interspecif ...
biodiversity- global issues
... a vital part of life on earth. Bacteria are the oldest life forms on earth. They were part of the earth’s atmosphere 3.8 billion years ago63. Microbes play an important role in various bio-geo-chemical cycles. They live in the digestive tracts of most animals (including humans and insects) where the ...
... a vital part of life on earth. Bacteria are the oldest life forms on earth. They were part of the earth’s atmosphere 3.8 billion years ago63. Microbes play an important role in various bio-geo-chemical cycles. They live in the digestive tracts of most animals (including humans and insects) where the ...
- University of Alberta
... lurida (Middendorif, 1849) revealed several interesting features about the feeding biology of this rather enigmatic predatory neogastropod. (1) Unlike the more common drilling gastropods in the northeastern Pacific, 0. lurida preyed most heavily upon limpets: of 231 feeding observations, 55.0% were ...
... lurida (Middendorif, 1849) revealed several interesting features about the feeding biology of this rather enigmatic predatory neogastropod. (1) Unlike the more common drilling gastropods in the northeastern Pacific, 0. lurida preyed most heavily upon limpets: of 231 feeding observations, 55.0% were ...
Tropical Grassland Ecosystems and Climate Change
... burning result in depauperization of most of the grasslands in terms of species composition. In most of the areas no new grasslands are being established due to prevention of natural ecological processes that promote development of grassland ecosystems. Based on studies carried out by different work ...
... burning result in depauperization of most of the grasslands in terms of species composition. In most of the areas no new grasslands are being established due to prevention of natural ecological processes that promote development of grassland ecosystems. Based on studies carried out by different work ...
Quantitative Finance
... A glorified programmer but well-paid and easier to find a job This kind of job can vary a lot It could be coding quickly all the time Working on a large systems debugging someone else’s code ...
... A glorified programmer but well-paid and easier to find a job This kind of job can vary a lot It could be coding quickly all the time Working on a large systems debugging someone else’s code ...
Oryctolagus cuniculus, European Rabbit
... predators that depend upon the rabbits and the issue of the sustainability of hunting populations have brought O. cuniculus into the public eye, but fail to address some issues of rabbit conservation, such as its role as an ecosystem modeler and the effects of agriculture on populations (Gibb 1990, ...
... predators that depend upon the rabbits and the issue of the sustainability of hunting populations have brought O. cuniculus into the public eye, but fail to address some issues of rabbit conservation, such as its role as an ecosystem modeler and the effects of agriculture on populations (Gibb 1990, ...
Workshop on Kingdom Fungi by Dana Krempels
... 1. In what ways might a broad-spectrum fungicide (i.e., one that kills all fungi) applied to an agricultural plant crop be harmful to the crop? 2. Humans have been able to obtain many different medicines (such as antibiotics) from fungi. Of what possible use to the fungi are these compounds? 3. Just ...
... 1. In what ways might a broad-spectrum fungicide (i.e., one that kills all fungi) applied to an agricultural plant crop be harmful to the crop? 2. Humans have been able to obtain many different medicines (such as antibiotics) from fungi. Of what possible use to the fungi are these compounds? 3. Just ...
Spartina anglica - Washington State University
... The interactions between organisms and their environments determine their distributions and abundances • Distribution = geographic range • abundance=individuals per unit area • environmental factors – abiotic - non-living chemical and physical factors – biotic - living factors like other organisms ...
... The interactions between organisms and their environments determine their distributions and abundances • Distribution = geographic range • abundance=individuals per unit area • environmental factors – abiotic - non-living chemical and physical factors – biotic - living factors like other organisms ...
Distribution and trophic ecology of chaetognaths in the western
... Comparisons between stations were conducted by analysis of variance (ANOVA). When the requirements of homoscedasticity were not fulfilled, data were transformed. In those cases where no suitable transformation was found, non-parametric tests were used instead. The study of foraging strategies betwee ...
... Comparisons between stations were conducted by analysis of variance (ANOVA). When the requirements of homoscedasticity were not fulfilled, data were transformed. In those cases where no suitable transformation was found, non-parametric tests were used instead. The study of foraging strategies betwee ...
Protecting threatened species and ecological communities from
... species and ecosystems due to multiple other threats – climate change, habitat loss and fire. For example, damaging fire regimes in northern Australia increase the vulnerability of small mammals to cat predation due to loss of shelter. ...
... species and ecosystems due to multiple other threats – climate change, habitat loss and fire. For example, damaging fire regimes in northern Australia increase the vulnerability of small mammals to cat predation due to loss of shelter. ...
Interactions within Ecosystems
... Competition: The interaction between organisms or species, in which the fitness of one is lowered by the presence of another. (2) ...
... Competition: The interaction between organisms or species, in which the fitness of one is lowered by the presence of another. (2) ...
Prey species use a variety of mechanisms to escape from their
... The laboratory studies concentrated on the susceptibilities of the snail species to extracting predators (i.e. starfish). However, crushing predators, such as crabs and demersal fishes, also consume Tegula (Hunt, 1977). I investigated the relationships between shell weight, shell volume and soft par ...
... The laboratory studies concentrated on the susceptibilities of the snail species to extracting predators (i.e. starfish). However, crushing predators, such as crabs and demersal fishes, also consume Tegula (Hunt, 1977). I investigated the relationships between shell weight, shell volume and soft par ...
Populations And Ecosystems Poetry Book
... Sound off! Biotic limits! Sound off! Abiotic limits! Sound off! 1 - 2 - 3 - 4: Limiting Factors! Predators keep the numbers down, By eating prey that they have found. Diseases limit numbers, too. Killing in numbers - either many or few. Sound off! Predation! Sound off! Biotic limits! Sound off! 1 - ...
... Sound off! Biotic limits! Sound off! Abiotic limits! Sound off! 1 - 2 - 3 - 4: Limiting Factors! Predators keep the numbers down, By eating prey that they have found. Diseases limit numbers, too. Killing in numbers - either many or few. Sound off! Predation! Sound off! Biotic limits! Sound off! 1 - ...
ECOSYSTEM 250Q
... 5. Fossils of a fungus called Prototaxites have been discovered. They are about 20 feet tall and about 400 million years old. Which fact from previous research would support the idea that an organism related to a mushroom could grow to such an unusual size? A. ...
... 5. Fossils of a fungus called Prototaxites have been discovered. They are about 20 feet tall and about 400 million years old. Which fact from previous research would support the idea that an organism related to a mushroom could grow to such an unusual size? A. ...
Species at Risk Database Management System
... Numbering more than 2 million individuals in the early 1990s, the current population is estimated at about 800,000. Most subpopulations have declined dramatically, but two are increasing, including the Porcupine Caribou Herd. For 70% of the population with sufficient data to quantify trends, the dec ...
... Numbering more than 2 million individuals in the early 1990s, the current population is estimated at about 800,000. Most subpopulations have declined dramatically, but two are increasing, including the Porcupine Caribou Herd. For 70% of the population with sufficient data to quantify trends, the dec ...
Theoretical ecology
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.