Determinants of Distribution
... including biotic factors (competition, predation, mutualism, etc). In a range isolated from the Andes: - low elevation species present, high elevation species absent - low elevation species expands its range upward Ecological release: expansion of the realized niche of a species where few competitor ...
... including biotic factors (competition, predation, mutualism, etc). In a range isolated from the Andes: - low elevation species present, high elevation species absent - low elevation species expands its range upward Ecological release: expansion of the realized niche of a species where few competitor ...
EcoVenture Class: Symbiotic Relationships 7
... Biotic factor: living things that help shape an ecosystem Abiotic factor: non-living things that help shape an ecosystem Biodiversity: biological diversity; the numbers and variety of different plants, animals and other organisms Community: multiple populations of species that interact with each oth ...
... Biotic factor: living things that help shape an ecosystem Abiotic factor: non-living things that help shape an ecosystem Biodiversity: biological diversity; the numbers and variety of different plants, animals and other organisms Community: multiple populations of species that interact with each oth ...
outcome 3 notes ke
... • Usually when a region has been cleared by a disturbance that does not destroy the soil. Pioneer species in secondary succession are generally species that grow ____quickly___ and disperse many ____seeds______ to colonize the area in a short time span. Usually when a region has been cleared by ...
... • Usually when a region has been cleared by a disturbance that does not destroy the soil. Pioneer species in secondary succession are generally species that grow ____quickly___ and disperse many ____seeds______ to colonize the area in a short time span. Usually when a region has been cleared by ...
chapter41_Sections 6
... To play movie you must be in Slide Show Mode PC Users: Please wait for content to load, then click to play Mac Users: CLICK HERE ...
... To play movie you must be in Slide Show Mode PC Users: Please wait for content to load, then click to play Mac Users: CLICK HERE ...
Biome DQ - Biloxi Public Schools
... C growing through layers of foliage to reach available sunlight D absorbing some of the nutrients found in the soil Justification--______________________________________________________________________________ _________________________________________________________________________________________ ...
... C growing through layers of foliage to reach available sunlight D absorbing some of the nutrients found in the soil Justification--______________________________________________________________________________ _________________________________________________________________________________________ ...
Biome DQ - Biloxi Public Schools
... 1. A single species of squirrel evolved over time into two species, each on opposite sides of the Grand Canyon. This change was most likely due to --A higher mutation rates on one side. B low genetic diversity in the initial population. C the isolation of the two groups. D differences in reproductiv ...
... 1. A single species of squirrel evolved over time into two species, each on opposite sides of the Grand Canyon. This change was most likely due to --A higher mutation rates on one side. B low genetic diversity in the initial population. C the isolation of the two groups. D differences in reproductiv ...
Aliens in Transylvania: risk maps of invasive alien plant species in
... Our risk maps show that the eight invaders considered have great potential to further expand their distributions. All except for one study species are wind dispersed, which is an effective long distance dispersal method (Cain et al. 2000). Roads serve as invasion corridors, enabling the species esta ...
... Our risk maps show that the eight invaders considered have great potential to further expand their distributions. All except for one study species are wind dispersed, which is an effective long distance dispersal method (Cain et al. 2000). Roads serve as invasion corridors, enabling the species esta ...
Succession presentation
... Ecological Succession Ecological succession is the directional change in the composition of species that occupy a given area through time It involves initial colonisation and establishment of pioneer plant species, followed by their replacement with other species until a relatively stable community ...
... Ecological Succession Ecological succession is the directional change in the composition of species that occupy a given area through time It involves initial colonisation and establishment of pioneer plant species, followed by their replacement with other species until a relatively stable community ...
Environmental proteomics, biodiversity statistics
... screened with epifluorescence and confocal microscopy, followed by direct DNA sequencing of entire genomes. The sequence data were then used to identify proteins from particular dominant organisms. Unknown sequences were screened against proteomic databases to identify common proteins. Functions of ...
... screened with epifluorescence and confocal microscopy, followed by direct DNA sequencing of entire genomes. The sequence data were then used to identify proteins from particular dominant organisms. Unknown sequences were screened against proteomic databases to identify common proteins. Functions of ...
Evolutionarily stable range limits set by interspecific competition
... equilibrium, when the competitor is (c) absent and (e) present. The curves were calculated from equations (2.1), (2.4) and (2.5) by averaging over the phenotypic distribution for a given value of the trait mean, z2 . Arrows indicate the equilibrium mean trait value. (d, f ) Adaptive landscapes at t ...
... equilibrium, when the competitor is (c) absent and (e) present. The curves were calculated from equations (2.1), (2.4) and (2.5) by averaging over the phenotypic distribution for a given value of the trait mean, z2 . Arrows indicate the equilibrium mean trait value. (d, f ) Adaptive landscapes at t ...
Linking ecological niche, community ecology and biogeography
... 2004, 2009; Buckley, 2008; Kearney et al., 2008), plant demography (e.g. Keith et al., 2008; Cabral & Schurr, 2010; Pagel & Schurr, 2012; Schurr et al., 2012) and plant phenology (e.g. Morin et al., 2008). Physiological niche models integrate processes such as energy uptake and storage, metabolic ra ...
... 2004, 2009; Buckley, 2008; Kearney et al., 2008), plant demography (e.g. Keith et al., 2008; Cabral & Schurr, 2010; Pagel & Schurr, 2012; Schurr et al., 2012) and plant phenology (e.g. Morin et al., 2008). Physiological niche models integrate processes such as energy uptake and storage, metabolic ra ...
The mathematics of diseases - Millennium Mathematics Project
... diseases conform to the assumptions behind the simple models. However, many complications have been introduced into the SIR−type models which allow them to better capture the observed dynamics and answer more applied questions. The following are a list of practical issues that have been implemented ...
... diseases conform to the assumptions behind the simple models. However, many complications have been introduced into the SIR−type models which allow them to better capture the observed dynamics and answer more applied questions. The following are a list of practical issues that have been implemented ...
15 Competition 2008
... MAJOR CONCEPTS 1) Facilitation is the alternative to competition; it is understudied. 2) Consumers compete by using a resource that reduces availability to others. 3) Competition occurs through exploitation of shared resources or direct interference. 4) Responses of plant and animal species to intra ...
... MAJOR CONCEPTS 1) Facilitation is the alternative to competition; it is understudied. 2) Consumers compete by using a resource that reduces availability to others. 3) Competition occurs through exploitation of shared resources or direct interference. 4) Responses of plant and animal species to intra ...
Trophic interactions in an arid ecosystem: From decomposers to top
... In this review, we summarize the work that our team is conducting at the Guadix-Baza Basin (Baza Basin hereafter) on food web structure and dynamics, focusing on the interactions between above and belowground organisms. The Baza Basin is located in Granada (southeastern Spain). In this area, potenti ...
... In this review, we summarize the work that our team is conducting at the Guadix-Baza Basin (Baza Basin hereafter) on food web structure and dynamics, focusing on the interactions between above and belowground organisms. The Baza Basin is located in Granada (southeastern Spain). In this area, potenti ...
Gordon Research Conference on PredatorPrey Interactions: from
... the program benefited from input by Scott Creel (University of Montana), Oswald Schmidtz (Yale University), and Jay Schulkin (Georgetown University). Predator–prey interactions have shaped all life on earth, and it is this underlying commonality that helps explain the development of so many parallel ...
... the program benefited from input by Scott Creel (University of Montana), Oswald Schmidtz (Yale University), and Jay Schulkin (Georgetown University). Predator–prey interactions have shaped all life on earth, and it is this underlying commonality that helps explain the development of so many parallel ...
Chapter 53 Population Ecology
... ° Ecologists define carrying capacity (K) as the maximum stable population size that a particular environment can support. ° Carrying capacity is not fixed but varies over space and time with the abundance of limiting resources. • Energy limitation often determines carrying capacity, although other ...
... ° Ecologists define carrying capacity (K) as the maximum stable population size that a particular environment can support. ° Carrying capacity is not fixed but varies over space and time with the abundance of limiting resources. • Energy limitation often determines carrying capacity, although other ...
Using the functional response of a consumer to predict biotic L
... response) and used these to estimate NZMS per capita mortality rates due to crayfish predation. We combined these estimates with field-based estimates of NZMS fecundity rates derived from the literature to forecast the probability of observing NZMS invasion vs. crayfishmediated biotic resistance over a ...
... response) and used these to estimate NZMS per capita mortality rates due to crayfish predation. We combined these estimates with field-based estimates of NZMS fecundity rates derived from the literature to forecast the probability of observing NZMS invasion vs. crayfishmediated biotic resistance over a ...
Limiting Factors
... Density Independent Factors: Density independent factors can affect a population no matter how many organisms are living in an area. The following are types of density independent factors: • Natural Disasters such as droughts, floods, hurricanes, tornadoes, and fires can be devastating to any habita ...
... Density Independent Factors: Density independent factors can affect a population no matter how many organisms are living in an area. The following are types of density independent factors: • Natural Disasters such as droughts, floods, hurricanes, tornadoes, and fires can be devastating to any habita ...
bf_fichierjoint_MZS.SAGITER_knowledge
... – a cumulative body of knowledge and practices anchored within specific worldviews, – handed down by generations through cultural processes, – adapted and re-appropriated by each generation/individual, – about the relationship of living beings (including humans) with one another and with their envir ...
... – a cumulative body of knowledge and practices anchored within specific worldviews, – handed down by generations through cultural processes, – adapted and re-appropriated by each generation/individual, – about the relationship of living beings (including humans) with one another and with their envir ...
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.