Processes affecting diversity
... Connell proposed disturbance is a prevalent feature that significantly influences community diversity. Proposed both high and low levels of disturbance would reduce diversity. ...
... Connell proposed disturbance is a prevalent feature that significantly influences community diversity. Proposed both high and low levels of disturbance would reduce diversity. ...
The Evolutionary Ecology of Carnivorous Plants
... angiosperm taxa), several studies have examined the costs associated with being a carnivorous plant (Thompson, 1981; Liittge, 1983; Givnish et al., 1984; Benzing, 2000). Most terrestrial carnivorous plants are restricted to open, wet, nutrient-poor habitats (Givnish et al., 1984; Seine et al., 1996) ...
... angiosperm taxa), several studies have examined the costs associated with being a carnivorous plant (Thompson, 1981; Liittge, 1983; Givnish et al., 1984; Benzing, 2000). Most terrestrial carnivorous plants are restricted to open, wet, nutrient-poor habitats (Givnish et al., 1984; Seine et al., 1996) ...
Comparative growth rates and yields of ciliates and heterotrophic
... species studied here showed that there was no single explanation for this growth rate disparity. Heterotrophic dinoflagellates exhibited both low ingestion rates and, in one case, low yields; ciliates were able to achieve higher growth rates via either higher ingestion rates or higher yields, depend ...
... species studied here showed that there was no single explanation for this growth rate disparity. Heterotrophic dinoflagellates exhibited both low ingestion rates and, in one case, low yields; ciliates were able to achieve higher growth rates via either higher ingestion rates or higher yields, depend ...
Chapter 8 Diversity and ecosystem function Jan Lepš Dr. Jan Lepš
... species S found on the size of the investigated area A is usually described by the species-area curve (see Rosenzweig 1995 for discussion). Two functional forms are employed: the power curve, usually written as S=c.Az, and the logarithmic curve S=a+b.log(A); c, z, a and b are parameters estimated b ...
... species S found on the size of the investigated area A is usually described by the species-area curve (see Rosenzweig 1995 for discussion). Two functional forms are employed: the power curve, usually written as S=c.Az, and the logarithmic curve S=a+b.log(A); c, z, a and b are parameters estimated b ...
the ecological consequences of changes in biodiversity
... of diversity on ecosystem processes (Schulze and Mooney 1993) and on ecosystem services essential to society (Daily 1997). Moreover, the disciplines of population, community, and ecosystem ecology, which diverged markedly in the 1970s and 1980s, were undergoing a synthesis and reunification (e.g., V ...
... of diversity on ecosystem processes (Schulze and Mooney 1993) and on ecosystem services essential to society (Daily 1997). Moreover, the disciplines of population, community, and ecosystem ecology, which diverged markedly in the 1970s and 1980s, were undergoing a synthesis and reunification (e.g., V ...
species replacement during early secondary succession
... Although interspecific competition reduced the cover and biomass of Senecio during its peak year, it had little or no effect on either the population increase or decline; the pattern of change was similar among all treatments. These counterintuitive results underscore the importance of testing, not ...
... Although interspecific competition reduced the cover and biomass of Senecio during its peak year, it had little or no effect on either the population increase or decline; the pattern of change was similar among all treatments. These counterintuitive results underscore the importance of testing, not ...
(C) commensalism
... 1. A primitive animal called the Hydra has tentacles with stinging cells. There is a small organism called Trichodina that is able to move around the tentacles of the Hydra, yet not trigger its stinging cells. Trichodina gets food caught and paralyzed by the Hydra and in turn keeps the surfaces of t ...
... 1. A primitive animal called the Hydra has tentacles with stinging cells. There is a small organism called Trichodina that is able to move around the tentacles of the Hydra, yet not trigger its stinging cells. Trichodina gets food caught and paralyzed by the Hydra and in turn keeps the surfaces of t ...
Q1 - FCCSC
... List the limiting factors that cause populations to decrease. Apply limiting factors to a J-shaped curve to change it to an S-Shaped curve. Compare and contrast populations under and above carrying capacity. Describe Density Dependent factors effect on populations Describe Density Independent factor ...
... List the limiting factors that cause populations to decrease. Apply limiting factors to a J-shaped curve to change it to an S-Shaped curve. Compare and contrast populations under and above carrying capacity. Describe Density Dependent factors effect on populations Describe Density Independent factor ...
original version of Chapter 5
... Exotic species as community structure probes ..................................................................... 41 12.1 The nature of exotic species ............................................................................................. 42 12.2 Exotic establishment and community assembly... ...
... Exotic species as community structure probes ..................................................................... 41 12.1 The nature of exotic species ............................................................................................. 42 12.2 Exotic establishment and community assembly... ...
Wulff 2005l - FSU Biology
... reef sponge assemblages, and reef sponges were excluded from mangrove sponge assemblages by competition. 3. Variation in growth rate was related inversely to variation in defences against predators in the species studied, suggesting a trade-off between resistance to competitors and to predators. 4. ...
... reef sponge assemblages, and reef sponges were excluded from mangrove sponge assemblages by competition. 3. Variation in growth rate was related inversely to variation in defences against predators in the species studied, suggesting a trade-off between resistance to competitors and to predators. 4. ...
A stoichiometric exception to the competitive exclusion principle.
... with n species on fewer than n limiting factors.) As it frequently happens in mathematical biology, the verbal version of a rigorous mathematical statement is often stated without some of its underlying assumptions. Such omission of assumptions can and often leads to widespread misconceptions by for ...
... with n species on fewer than n limiting factors.) As it frequently happens in mathematical biology, the verbal version of a rigorous mathematical statement is often stated without some of its underlying assumptions. Such omission of assumptions can and often leads to widespread misconceptions by for ...
Propagule supply controls grazer community structure and primary
... inferior competitors will be driven extinct, returning the community to the saturation point. Thus defined, species diversity at saturation is the stable equilibrium point to which communities are naturally attracted. Whether or not communities are likely to ever reach saturation remains an unresolv ...
... inferior competitors will be driven extinct, returning the community to the saturation point. Thus defined, species diversity at saturation is the stable equilibrium point to which communities are naturally attracted. Whether or not communities are likely to ever reach saturation remains an unresolv ...
Spatiotemporal Model of Barley and Cereal Yellow Dwarf Virus
... which suggested that the virus could reverse the competitive outcome between perennial and annual host grasses, leading to the successful invasion by the competitively inferior annuals. However, continued existence of B/CYDV requires the persistence of the perennial grass in the community due to its ...
... which suggested that the virus could reverse the competitive outcome between perennial and annual host grasses, leading to the successful invasion by the competitively inferior annuals. However, continued existence of B/CYDV requires the persistence of the perennial grass in the community due to its ...
Organization of the Biosphere:
... Population growth is based on available resources. Define “exponential growth”. List and describe factors and conditions under which exponential growth occurs. Draw a general graph depicting an exponential growth curve in the space provided, ...
... Population growth is based on available resources. Define “exponential growth”. List and describe factors and conditions under which exponential growth occurs. Draw a general graph depicting an exponential growth curve in the space provided, ...
Mechanical vulnerability explains sizedependent mortality of reef
... water temperatures, a phenomenon known as bleaching (Glynn 1993). Some of these mortality agents have been substantially exacerbated by climate change and other anthropogenic effects on reefs (Hughes et al. 2003). For example, warmer surface waters increase the prevalence of coral bleaching and dise ...
... water temperatures, a phenomenon known as bleaching (Glynn 1993). Some of these mortality agents have been substantially exacerbated by climate change and other anthropogenic effects on reefs (Hughes et al. 2003). For example, warmer surface waters increase the prevalence of coral bleaching and dise ...
Long-term dynamics of biotic and abiotic resistance to exotic species
... influence population dynamics. We observed that, in general, exotic species were strongly and negatively affected by the relatively harsh abiotic conditions associated with pool inundation during the winter wet phase. Most exotic species were unable to tolerate extensive periods of inundation, and th ...
... influence population dynamics. We observed that, in general, exotic species were strongly and negatively affected by the relatively harsh abiotic conditions associated with pool inundation during the winter wet phase. Most exotic species were unable to tolerate extensive periods of inundation, and th ...
15 Sea Grass Beds, Kelp Forests, Rocky Reefs, and Coral Reefs
... Mass Spawning on Coral Reefs 4 • Most corals have planktonic gametes • On Great Barrier Reef, reefs off of Texas: many species of corals spawn at same time • Facilitates gamete union, perhaps a mechanism to flood the sea with gametes to avoid all being ingested by predators • Facilitiates release o ...
... Mass Spawning on Coral Reefs 4 • Most corals have planktonic gametes • On Great Barrier Reef, reefs off of Texas: many species of corals spawn at same time • Facilitates gamete union, perhaps a mechanism to flood the sea with gametes to avoid all being ingested by predators • Facilitiates release o ...
Deep-sea ecosystem: a world of positive biodiversity – ecosystem
... al., 2013), in enhancing ecosystem functioning. In this study we investigate the BEF relationships in ...
... al., 2013), in enhancing ecosystem functioning. In this study we investigate the BEF relationships in ...
Chapter 5: Ecosystems & Living Organisms
... Brown anole eventually out-competed the green anole for resources Drove out green anole, thereby reducing the green anole’s realized niche ...
... Brown anole eventually out-competed the green anole for resources Drove out green anole, thereby reducing the green anole’s realized niche ...
Population Ecology
... Population Density - Number of individuals per unit area or volume. Population Distribution - Pattern of dispersal of individuals within the area of interest. – Ecologists want to analyze and discover what causes the spatial and temporal “patchiness” of organisms. Limiting Factors are factors that ...
... Population Density - Number of individuals per unit area or volume. Population Distribution - Pattern of dispersal of individuals within the area of interest. – Ecologists want to analyze and discover what causes the spatial and temporal “patchiness” of organisms. Limiting Factors are factors that ...