Cascading top-down effects of changing oceanic predator
... 2007) have also facilitated research in this area. Evidence of cascading effects of predator alterations, with their associated conservation and economic implications, has heightened the need to better understand the drivers of oceanic ecosystem processes. Our emphasis herein on top-down control is ...
... 2007) have also facilitated research in this area. Evidence of cascading effects of predator alterations, with their associated conservation and economic implications, has heightened the need to better understand the drivers of oceanic ecosystem processes. Our emphasis herein on top-down control is ...
Chapter 20
... • If all 5 assumptions for equilibrium are true, allele and genotype frequencies do not change from one generation to the next • In reality, most populations will not meet all 5 ...
... • If all 5 assumptions for equilibrium are true, allele and genotype frequencies do not change from one generation to the next • In reality, most populations will not meet all 5 ...
LS2.A- Interdependent Relationships in Ecosystems
... The" 5" main" types" of" animal" interac;ons" are" compe;;on," parasi;sm," mutualism," preda;on" and"commensalism."" Compe22on:" this" type" of" interac;on" is" where" organisms" in" the" ecosystem" compete" for" resources." " These" could" include," food," water," shelter," space" and" reproduc;ve" ...
... The" 5" main" types" of" animal" interac;ons" are" compe;;on," parasi;sm," mutualism," preda;on" and"commensalism."" Compe22on:" this" type" of" interac;on" is" where" organisms" in" the" ecosystem" compete" for" resources." " These" could" include," food," water," shelter," space" and" reproduc;ve" ...
Chapter 25 Communicaton Ecology 25.1 INTERACTIONS AMONG
... away other plants whenever it blocks the host plans light and toghether with brought in organinc materal and their excretion the ants provide the plant ith a source of nitrogen D. A simliar species in africa, crematogsater nigriceps, lives in acacia, but cuts off branches of it's host plant to preve ...
... away other plants whenever it blocks the host plans light and toghether with brought in organinc materal and their excretion the ants provide the plant ith a source of nitrogen D. A simliar species in africa, crematogsater nigriceps, lives in acacia, but cuts off branches of it's host plant to preve ...
(Oda et al. 2014). This species is well adapted to - ICB
... macrosternum and Bovo et al. (2014) reported the predation of Rhinella ornata by Leptodactylus latrans. Therefore, predation on small-sized frogs such as Pseudis platensis may be more common than recorded in the literature (Toledo et al. 2007). The diet of Leptodactylus chaquensis presents a wide va ...
... macrosternum and Bovo et al. (2014) reported the predation of Rhinella ornata by Leptodactylus latrans. Therefore, predation on small-sized frogs such as Pseudis platensis may be more common than recorded in the literature (Toledo et al. 2007). The diet of Leptodactylus chaquensis presents a wide va ...
DURATION: 3 HOURS - School of Environmental Sciences
... a) All the interactions between living things in an area b) All the interactions between non-living things in an area c) All interactions between trophic levels in an area d) All of the interactions between living things and their environment in an area e) All interactions within trophic levels in a ...
... a) All the interactions between living things in an area b) All the interactions between non-living things in an area c) All interactions between trophic levels in an area d) All of the interactions between living things and their environment in an area e) All interactions within trophic levels in a ...
Piscine predation on juvenile fishes on a Scottish sandy beach
... Predation by larger fishes is a major cause of mortality for the populations of juvenile fishes on a sandy beach on the west coast of Scotland. Predation was concentrated on the most numerous species (0-group Pleuronectes platessa) in June but with the decline in numbers and growth in size of this s ...
... Predation by larger fishes is a major cause of mortality for the populations of juvenile fishes on a sandy beach on the west coast of Scotland. Predation was concentrated on the most numerous species (0-group Pleuronectes platessa) in June but with the decline in numbers and growth in size of this s ...
Conference Programme
... The direct impact of lion (Panthera leo) predation on herbivore populations in smaller game reserves was investigated. Kill and census data were used to derive preference indices for prey species and compared with findings from earlier studies. Results suggested that lions are risk-sensitive predato ...
... The direct impact of lion (Panthera leo) predation on herbivore populations in smaller game reserves was investigated. Kill and census data were used to derive preference indices for prey species and compared with findings from earlier studies. Results suggested that lions are risk-sensitive predato ...
Chapter 4 4.3 Succession
... following natural disturbances often reproduces the original climax community. – Healthy coral reefs and tropical rain forests often recover from storms, and healthy temperate forests and grasslands recover from wildfires. – However, detailed studies show that some climax communities are not uniform ...
... following natural disturbances often reproduces the original climax community. – Healthy coral reefs and tropical rain forests often recover from storms, and healthy temperate forests and grasslands recover from wildfires. – However, detailed studies show that some climax communities are not uniform ...
EXTINCTION IS FOREVER: When the last members of a species die
... top predator in his part of the world. But extinction if we want tigers and other he has less control over his future than you do. If he is to survive, he will have wonderful animals to go on living in our to rely on your good judgment and sense world. Exotic cats run a high risk of of values as you ...
... top predator in his part of the world. But extinction if we want tigers and other he has less control over his future than you do. If he is to survive, he will have wonderful animals to go on living in our to rely on your good judgment and sense world. Exotic cats run a high risk of of values as you ...
Curriculum vitae - Woods Hole Oceanographic Institution
... Stegert, C., Ji, R., Li, N., Davis, C.S., Processes controlling seasonality and spatial distribution of Centropages typicus: A modeling study in the Gulf of Maine/Georges Bank region. Journal of Plankton Research 34 (1), 18-35. ...
... Stegert, C., Ji, R., Li, N., Davis, C.S., Processes controlling seasonality and spatial distribution of Centropages typicus: A modeling study in the Gulf of Maine/Georges Bank region. Journal of Plankton Research 34 (1), 18-35. ...
Chapter 4 4.3 Succession
... following natural disturbances often reproduces the original climax community. – Healthy coral reefs and tropical rain forests often recover from storms, and healthy temperate forests and grasslands recover from wildfires. – However, detailed studies show that some climax communities are not uniform ...
... following natural disturbances often reproduces the original climax community. – Healthy coral reefs and tropical rain forests often recover from storms, and healthy temperate forests and grasslands recover from wildfires. – However, detailed studies show that some climax communities are not uniform ...
Title: A new idea on the evolution of biodiversity
... The carrying capacity, however, should not be seen as a static threshold, but rather as a dynamic range of density that regulates the number of individuals in populations. Without the constraint of this ecological edge the population would increase following an exponential growth, with an intrinsic ...
... The carrying capacity, however, should not be seen as a static threshold, but rather as a dynamic range of density that regulates the number of individuals in populations. Without the constraint of this ecological edge the population would increase following an exponential growth, with an intrinsic ...
File - Buford`s Biology Buzz
... If the maximum sustainable population size (carrying capacity) is K, then K − N is the number of additional individuals the environment can accommodate and (K − N)/K is the fraction of K that is still available for population growth. ...
... If the maximum sustainable population size (carrying capacity) is K, then K − N is the number of additional individuals the environment can accommodate and (K − N)/K is the fraction of K that is still available for population growth. ...
experimental ecology of food webs: complex systems in temporary
... their life cycle by balancing the opportunities for growth with the risks of mortality when determining the optimal time of metamorphosis (Wilbur and Collins 1973, Werner 1986, Wilbur 1996). These broad generalizations are based on my observations of natural ponds, but nearly all have been explicitl ...
... their life cycle by balancing the opportunities for growth with the risks of mortality when determining the optimal time of metamorphosis (Wilbur and Collins 1973, Werner 1986, Wilbur 1996). These broad generalizations are based on my observations of natural ponds, but nearly all have been explicitl ...
Ecosystems: Components, Energy Flow, and Matter Cycling
... Digest complex organic chemicals into inorganic nutrients that are used by producers Complete the cycle of matter ...
... Digest complex organic chemicals into inorganic nutrients that are used by producers Complete the cycle of matter ...
What is evolution?
... • All natural selection results in evolution, but not all evolution is the product of natural selection. • What is evolution? – Evolution is the change in allele frequencies (or traits) over time. ...
... • All natural selection results in evolution, but not all evolution is the product of natural selection. • What is evolution? – Evolution is the change in allele frequencies (or traits) over time. ...
Models help to predict the future of the Baltic Sea
... complexity are necessary to address the diverse array of questions that scientists and managers are faced with. Some include the entire Baltic Sea, others are focused on considerably smaller areas. For example, the City of Helsinki Environment Centre is developing a model for the coastal area around ...
... complexity are necessary to address the diverse array of questions that scientists and managers are faced with. Some include the entire Baltic Sea, others are focused on considerably smaller areas. For example, the City of Helsinki Environment Centre is developing a model for the coastal area around ...
High School Science Essential Curriculum - Environmental
... Examine how interactions between a species and its environment define the species’ niche. c. Discriminate between a species and a population and between a community and an ecosystem. d. Explain how organisms have adapted to their environments using examples from the diversity of living things. Goal ...
... Examine how interactions between a species and its environment define the species’ niche. c. Discriminate between a species and a population and between a community and an ecosystem. d. Explain how organisms have adapted to their environments using examples from the diversity of living things. Goal ...
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.