Science Express Logo Report
... where multiple species share common resources and common predators, increasing the level of productivity can create a saddle between dominance by species that are more effective competitors for shared resources and dominance by species that are more effective apparent competitors mediated through sh ...
... where multiple species share common resources and common predators, increasing the level of productivity can create a saddle between dominance by species that are more effective competitors for shared resources and dominance by species that are more effective apparent competitors mediated through sh ...
Understanding cooccurrence by modelling species simultaneously
... Helmus et al. (2007) used the residuals from an SDM to calculate a co-occurrence index, thereby considering the effect of environmental variables on co-occurrence estimates. Likewise, studies that use SDMs are beginning to consider species interactions by restricting the predicted distribution of one ...
... Helmus et al. (2007) used the residuals from an SDM to calculate a co-occurrence index, thereby considering the effect of environmental variables on co-occurrence estimates. Likewise, studies that use SDMs are beginning to consider species interactions by restricting the predicted distribution of one ...
Bio 20c Spring 2016 Final Exam Name/SID Refer to the graphic
... in the newly liberated space. They maintain these farms for as long as 20+ years, grazing portions of them on a rotational basis so as to allow grazed patches to re-grow their algae. Other species of limpets will opportunistically graze these patches, but the larger Lottia will actively pry them off ...
... in the newly liberated space. They maintain these farms for as long as 20+ years, grazing portions of them on a rotational basis so as to allow grazed patches to re-grow their algae. Other species of limpets will opportunistically graze these patches, but the larger Lottia will actively pry them off ...
Network structure beyond food webs: mapping non
... sampling details and species list). These surveys, repeated over multiple years, consisted of identifying and estimating the abundance of all species found within replicated 0.25-m2 quadrats placed in high, mid, low, and low fringe tidal heights across one to three benches at each site. Thus, our we ...
... sampling details and species list). These surveys, repeated over multiple years, consisted of identifying and estimating the abundance of all species found within replicated 0.25-m2 quadrats placed in high, mid, low, and low fringe tidal heights across one to three benches at each site. Thus, our we ...
Network structure beyond food webs: mapping nontrophic and
... sampling details and species list). These surveys, repeated over multiple years, consisted of identifying and estimating the abundance of all species found within replicated 0.25-m2 quadrats placed in high, mid, low, and low fringe tidal heights across one to three benches at each site. Thus, our we ...
... sampling details and species list). These surveys, repeated over multiple years, consisted of identifying and estimating the abundance of all species found within replicated 0.25-m2 quadrats placed in high, mid, low, and low fringe tidal heights across one to three benches at each site. Thus, our we ...
title 1 - City of Gosnells
... Current distribution is limited, and one or more of the following apply (i, ii or iii): i) geographic range and/or number of discrete occurrences, and/or area occupied is highly restricted and the community is currently subject to known threatening processes which are likely to result in total destr ...
... Current distribution is limited, and one or more of the following apply (i, ii or iii): i) geographic range and/or number of discrete occurrences, and/or area occupied is highly restricted and the community is currently subject to known threatening processes which are likely to result in total destr ...
6-3 Biodiversity
... The Value of Biodiversity Biological diversity, or biodiversity, is the sum total of the genetically based variety of all organisms in the biosphere. Ecosystem diversity includes the variety of habitats, communities, and ecological processes in the living world. ...
... The Value of Biodiversity Biological diversity, or biodiversity, is the sum total of the genetically based variety of all organisms in the biosphere. Ecosystem diversity includes the variety of habitats, communities, and ecological processes in the living world. ...
The Revolution of Science through Scuba
... closest fit was false. Indeed, many models make the right predictions for the wrong reason because the modelers lack critical natural history (Dayton, 1973) available with scuba. For example, until the mid-1970s blue water oceanographers would bemoan the ubiquitous slime that fouled the inside of t ...
... closest fit was false. Indeed, many models make the right predictions for the wrong reason because the modelers lack critical natural history (Dayton, 1973) available with scuba. For example, until the mid-1970s blue water oceanographers would bemoan the ubiquitous slime that fouled the inside of t ...
Effects of River Impoundment on Ecosystem Services
... replacement or willingness-to-pay estimates (Groot et al. 2002). Comparisons among methods of valuing ecosystem services, such as between energetic value and market value as in our study, may be especially informative (e.g., Costanza 1980; Cleveland et al. 1984). To estimate market value, we separat ...
... replacement or willingness-to-pay estimates (Groot et al. 2002). Comparisons among methods of valuing ecosystem services, such as between energetic value and market value as in our study, may be especially informative (e.g., Costanza 1980; Cleveland et al. 1984). To estimate market value, we separat ...
Global Amphibian Declines: What Have We Done? Outline
... Chemical Pollution of Water • Pesticides and herbicides – Break down slowly, gather in sediment, bioaccumulate in amphibians – Herbicide Roundup killed 98% of tadpoles within ...
... Chemical Pollution of Water • Pesticides and herbicides – Break down slowly, gather in sediment, bioaccumulate in amphibians – Herbicide Roundup killed 98% of tadpoles within ...
What`s Wrong with Exotic Species?
... than their fecundity—may result in the need (or, for wildlife officials, the opportunity) to spend taxpayer money to control them in other ways, such as addling their eggs. Uses could be found for other invasive aliens. Consider the recently arrived green crab that overflows lobster traps in New Eng ...
... than their fecundity—may result in the need (or, for wildlife officials, the opportunity) to spend taxpayer money to control them in other ways, such as addling their eggs. Uses could be found for other invasive aliens. Consider the recently arrived green crab that overflows lobster traps in New Eng ...
The process of making more of one`s own kind is called reproduction
... shown with a capital letter, such as “T” for tallness. The _____________ __________ for the same trait is shown with a lowercase version of the same letter. So, in this case, “t” would stand for shortness. Offspring ___________ one allele from each parent. Sometimes an organism _____________ two dom ...
... shown with a capital letter, such as “T” for tallness. The _____________ __________ for the same trait is shown with a lowercase version of the same letter. So, in this case, “t” would stand for shortness. Offspring ___________ one allele from each parent. Sometimes an organism _____________ two dom ...
Special Feature - Cedar Creek Ecosystem Science Reserve
... the paradigm. It has successfully challenged ecology’s central tenet that biodiversity is primarily an epiphenomenon of ecosystem function secondarily structured by community processes. In its most extreme form, it claims that the reverse is true. Of course, neither the central tenet of ecology nor ...
... the paradigm. It has successfully challenged ecology’s central tenet that biodiversity is primarily an epiphenomenon of ecosystem function secondarily structured by community processes. In its most extreme form, it claims that the reverse is true. Of course, neither the central tenet of ecology nor ...
Key for Exam 2 Biology 260 Fall 2003
... take over. They face little competition compared to later plants which may have lots of competition. Having lots of wind dispersed seeds allows the plants to establish in lots of places instead of the climax species replacing the climax species in the later plants. One characteristic of early succes ...
... take over. They face little competition compared to later plants which may have lots of competition. Having lots of wind dispersed seeds allows the plants to establish in lots of places instead of the climax species replacing the climax species in the later plants. One characteristic of early succes ...
OS - BioMed Central
... plotted them on a map of the study area. For species that occurred in both the study area and the buffer zone, we again relied on habitat information to determine whether to include the species. For plants, we did not include those species for which current taxonomists recognize one or more infraspe ...
... plotted them on a map of the study area. For species that occurred in both the study area and the buffer zone, we again relied on habitat information to determine whether to include the species. For plants, we did not include those species for which current taxonomists recognize one or more infraspe ...
Are multispecies models an improvement on single
... We review the application of multispecies models as tools for evaluating impacts of fishing on marine communities. Four types of model are identified: descriptive multispecies, dynamic multispecies, aggregate system, and dynamic system models. The strengths and weaknesses of multispecies models and ...
... We review the application of multispecies models as tools for evaluating impacts of fishing on marine communities. Four types of model are identified: descriptive multispecies, dynamic multispecies, aggregate system, and dynamic system models. The strengths and weaknesses of multispecies models and ...
to read the NAPCAC Final Report
... 50% of the original species enough, will 25% do, or even one or two species if they’re conspicuous enough? Furthermore, ecologists do not know how to tell whether an ecosystem is stable or resilient without perturbing it. Simply looking at what’s in the ecosystem doesn’t indicate much about its dyna ...
... 50% of the original species enough, will 25% do, or even one or two species if they’re conspicuous enough? Furthermore, ecologists do not know how to tell whether an ecosystem is stable or resilient without perturbing it. Simply looking at what’s in the ecosystem doesn’t indicate much about its dyna ...
Predators, parasitoids and pathogens: species richness, trophic
... hierarchy of body sizes. For example, Cohen et al. (1993b) found that about 90% of feeding links involve a larger predator feeding on a smaller prey. However, this is not because there are no exceptions to these generalizations, but because nobody has really studied them (Lawton 1989). Thus, parasit ...
... hierarchy of body sizes. For example, Cohen et al. (1993b) found that about 90% of feeding links involve a larger predator feeding on a smaller prey. However, this is not because there are no exceptions to these generalizations, but because nobody has really studied them (Lawton 1989). Thus, parasit ...
Chapter 35- Population_ Dynamics
... • A uniform pattern of dispersion often results from interactions among individuals of a population – Territorial behavior and competition for water are examples of such interactions ...
... • A uniform pattern of dispersion often results from interactions among individuals of a population – Territorial behavior and competition for water are examples of such interactions ...
Biology
... Unity and Diversity, examines the variation of traits within a population over a long period of time that results in diversity among organisms. Integrated within the disciplinary core ideas of Biology are the Engineering, Technology, and Applications of Science (ETS) core ideas, which are denoted ...
... Unity and Diversity, examines the variation of traits within a population over a long period of time that results in diversity among organisms. Integrated within the disciplinary core ideas of Biology are the Engineering, Technology, and Applications of Science (ETS) core ideas, which are denoted ...
Modelling Food Webs
... and the stability and dynamical properties of small networks consisting of a few species were investigated, demonstrating a variety of instances where more complex model systems were not less stable than simpler ones. Furthermore, models were introduced that built up a community by a sequence of inv ...
... and the stability and dynamical properties of small networks consisting of a few species were investigated, demonstrating a variety of instances where more complex model systems were not less stable than simpler ones. Furthermore, models were introduced that built up a community by a sequence of inv ...
Oh Deer! Do We Have a Problem?
... • 4 science vocabulary terms will be shown at the top of the screen. • One-at-a-time, 4 clues about one of the terms will be shown on the screen. You are to determine the term that all the clues refer to. • Record your work in your science notebook or on a google doc. • Some terms may have similar m ...
... • 4 science vocabulary terms will be shown at the top of the screen. • One-at-a-time, 4 clues about one of the terms will be shown on the screen. You are to determine the term that all the clues refer to. • Record your work in your science notebook or on a google doc. • Some terms may have similar m ...
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.