Fishes on the Antarctic continental shelf: evolution of a marine
... about 34 000 years BP (Anderson, 1999). The shelf is deeply eroded in many areas, so topography and bathymetry are irregular, there are ridges and banks as well as troughs, or inner shelf depressions, with depths to 1400 m. The troughs are eroded by ice discharged from outlet glaciers (Anderson, 199 ...
... about 34 000 years BP (Anderson, 1999). The shelf is deeply eroded in many areas, so topography and bathymetry are irregular, there are ridges and banks as well as troughs, or inner shelf depressions, with depths to 1400 m. The troughs are eroded by ice discharged from outlet glaciers (Anderson, 199 ...
Interspecific competition in metapopulations
... evidence that most of the population turnover observed in rockpools consists of real extinctions and colonizations, not of dormancy. For example, in artificial rockpools with gravel and detritus as bottom sediment, no populations scored as extinct after 4 years reappeared in later years (J.Bengtsson ...
... evidence that most of the population turnover observed in rockpools consists of real extinctions and colonizations, not of dormancy. For example, in artificial rockpools with gravel and detritus as bottom sediment, no populations scored as extinct after 4 years reappeared in later years (J.Bengtsson ...
What do we mean when we talk about ecological restoration?
... and the appropriate site and situation for the project can be found - thus each restoration project will have its own ground rules and its own operating and management plan ...
... and the appropriate site and situation for the project can be found - thus each restoration project will have its own ground rules and its own operating and management plan ...
Interspecific Competition and Species Co
... Reviewed work(s): Source: Oikos, Vol. 41, No. 3, Island Ecology (Dec., 1983), pp. 455-465 Published by: Wiley on behalf of Nordic Society Oikos Stable URL: http://www.jstor.org/stable/3544105 . Accessed: 21/02/2013 12:18 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditio ...
... Reviewed work(s): Source: Oikos, Vol. 41, No. 3, Island Ecology (Dec., 1983), pp. 455-465 Published by: Wiley on behalf of Nordic Society Oikos Stable URL: http://www.jstor.org/stable/3544105 . Accessed: 21/02/2013 12:18 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditio ...
Section 4 - Chandler Unified School District / Overview
... • There is no organism that can live everywhere. • Even as humans, we have a limitation to where we can realistically inhabit, • Almost all the time, in order for an organism to be at its best, at its highest fitness, it has it’s own set of specific conditions (habitat and community) that it functio ...
... • There is no organism that can live everywhere. • Even as humans, we have a limitation to where we can realistically inhabit, • Almost all the time, in order for an organism to be at its best, at its highest fitness, it has it’s own set of specific conditions (habitat and community) that it functio ...
Honors Biology notes
... B. measuring populations and their distribution (Fig 36.2) C. population growth depends on birth and death rates 1. exponential growth produces a “J-shaped” curve (fig. 36.4A) 2. growth is eventually limited by resources, producing an “Sshaped” curve (fig. 36.4C) 3. the maximum sustainable number is ...
... B. measuring populations and their distribution (Fig 36.2) C. population growth depends on birth and death rates 1. exponential growth produces a “J-shaped” curve (fig. 36.4A) 2. growth is eventually limited by resources, producing an “Sshaped” curve (fig. 36.4C) 3. the maximum sustainable number is ...
Effects of neighboring organisms on the growth of three intertidal
... day or growth rate. Calculation and statistics. Data on sizes of isolated and mixed colonies were linearized by log transformation. Regression coefficients of log colony size vs time for growth of each colony were calculated. Thus each colony provided single a and b values or intercept and slope, re ...
... day or growth rate. Calculation and statistics. Data on sizes of isolated and mixed colonies were linearized by log transformation. Regression coefficients of log colony size vs time for growth of each colony were calculated. Thus each colony provided single a and b values or intercept and slope, re ...
Modern natural products drug discovery and its relevance to
... Some early success stories from NP drug discovery have entered the common vernacular. For example, the alkaloidal substance quinine, which is added to “tonic waters” worldwide and is responsible for the bitter taste, was first administered to prophylactically combat malaria. More recent discoveries, ...
... Some early success stories from NP drug discovery have entered the common vernacular. For example, the alkaloidal substance quinine, which is added to “tonic waters” worldwide and is responsible for the bitter taste, was first administered to prophylactically combat malaria. More recent discoveries, ...
Rivers and Wetlands: A Common Assessment Approach
... Data Quality Data Archiving Robustness International Compatibility • Costs, Benefits, and Cost-Effectiveness ...
... Data Quality Data Archiving Robustness International Compatibility • Costs, Benefits, and Cost-Effectiveness ...
Marine Biology: Study Guide
... ‘big picture’ end of Marine Biology. In this section, we will first look at the physical environment of the ocean – the abiotic factors that affect organisms. Then we will examine the parts of living things (reductionist view), the general strategies that organisms use to respond to their environmen ...
... ‘big picture’ end of Marine Biology. In this section, we will first look at the physical environment of the ocean – the abiotic factors that affect organisms. Then we will examine the parts of living things (reductionist view), the general strategies that organisms use to respond to their environmen ...
Honors Chapter 1 and 2 learning objectives
... Compare and contrast the terms element and compound; compare and contrast the terms atom and molecule Explain the following terms: nucleus, electron, neutron, protons, macromolecule Explain the pH scale, comparing and contrasting the terms acid and base Explain the phrase, “organic carbon compounds ...
... Compare and contrast the terms element and compound; compare and contrast the terms atom and molecule Explain the following terms: nucleus, electron, neutron, protons, macromolecule Explain the pH scale, comparing and contrasting the terms acid and base Explain the phrase, “organic carbon compounds ...
Interspecific Competition and Species` Distributions
... The role of competition between species in affecting their distributions is today hotly debated in many quarters (e.g., Connell, 1975, 1978, 1979, 1980). Regardless of position, these discussions almost invariably focus on the Volterra-Gause niche theory of competition and the principle of competiti ...
... The role of competition between species in affecting their distributions is today hotly debated in many quarters (e.g., Connell, 1975, 1978, 1979, 1980). Regardless of position, these discussions almost invariably focus on the Volterra-Gause niche theory of competition and the principle of competiti ...
The Biogeography of Marine Invertebrate Life Histories
... Terrestrial life histories tend to map strongly to phylogeny, but marine life histories show tremendous variation that can be completely free of phylogenetic constraints. For example, congeners can vary from external fertilization with tiny long-lived, feeding larvae, to internal fertilization and n ...
... Terrestrial life histories tend to map strongly to phylogeny, but marine life histories show tremendous variation that can be completely free of phylogenetic constraints. For example, congeners can vary from external fertilization with tiny long-lived, feeding larvae, to internal fertilization and n ...
Chapter 17 Origin of Species
... Bolivian natural forest island isolated 3000 years from the larger continuous forest habitat during a dry period • Divergence in song and certain alleles frequencies between the two populations (reproductive isolation) suggest that incipient speciation is under way (Southern Chestnut-tailed Antbird, ...
... Bolivian natural forest island isolated 3000 years from the larger continuous forest habitat during a dry period • Divergence in song and certain alleles frequencies between the two populations (reproductive isolation) suggest that incipient speciation is under way (Southern Chestnut-tailed Antbird, ...
Is farther seed dispersal better?
... in other words, that seed dispersal in farther-dispersed species is really more effective. Thus, direct tests of the farther-is-better paradigm are still lacking. This study tested for non-random mortality among three, biologically similar tree species that share the same dispersers but differ in di ...
... in other words, that seed dispersal in farther-dispersed species is really more effective. Thus, direct tests of the farther-is-better paradigm are still lacking. This study tested for non-random mortality among three, biologically similar tree species that share the same dispersers but differ in di ...
The world's richest tadpole communities show functional redundancy and low functional
... Zoological Institute, Technical University of Braunschweig, Spielmannstr. 8, 38106 Braunschweig, Germany ...
... Zoological Institute, Technical University of Braunschweig, Spielmannstr. 8, 38106 Braunschweig, Germany ...
Ecology Targets
... 26. I can explain the difference between autotroph and heterotroph. 27. I can explain how producers and autotrophs are alike. 28. I can explain how consumers and heterotrophs are alike. 29. I can list the 5 types of consumers and list what they eat. 30. I can list the different types of decomposers ...
... 26. I can explain the difference between autotroph and heterotroph. 27. I can explain how producers and autotrophs are alike. 28. I can explain how consumers and heterotrophs are alike. 29. I can list the 5 types of consumers and list what they eat. 30. I can list the different types of decomposers ...
from wsl.ch
... and can be replaced by recruits from the local community or by immigrants. 3. Propagule supply is determined by offspring production and by propagule dispersal. Only adults that are at least one time step old can produce propagules. Offspring production rate is determined by the local (temperature a ...
... and can be replaced by recruits from the local community or by immigrants. 3. Propagule supply is determined by offspring production and by propagule dispersal. Only adults that are at least one time step old can produce propagules. Offspring production rate is determined by the local (temperature a ...
Biodiversity Action Planning - Department of Environment, Land
... require a practical system for dealing with this complexity. This system must allow for multiplespecies strategies, the identification of priority sites for native biodiversity and be complementary to integrated catchment management approach. Not all areas of the landscape have the same ‘return on i ...
... require a practical system for dealing with this complexity. This system must allow for multiplespecies strategies, the identification of priority sites for native biodiversity and be complementary to integrated catchment management approach. Not all areas of the landscape have the same ‘return on i ...
PDF - David J. Harris
... are suffering dramatically from these environmental changes, others, such as urbanized and pest species, are doing better than ever. Our goal is to provide insights into explaining such variation. We first summarize the responses of some species to novel situations, including novel risks and resourc ...
... are suffering dramatically from these environmental changes, others, such as urbanized and pest species, are doing better than ever. Our goal is to provide insights into explaining such variation. We first summarize the responses of some species to novel situations, including novel risks and resourc ...
Habitat Selection
... Habitat Selection • Other kinds of organisms appear to make similar ontogenetic shifts in habitat use that depend on the presence of predators. • Although the costs of predator avoidance seem slight, Morin (1986) observed that tadpoles of the spring peeper spent the first 2 weeks after hatching hid ...
... Habitat Selection • Other kinds of organisms appear to make similar ontogenetic shifts in habitat use that depend on the presence of predators. • Although the costs of predator avoidance seem slight, Morin (1986) observed that tadpoles of the spring peeper spent the first 2 weeks after hatching hid ...
Global Ecology
... are the environmental variables, and what is the inherent variation in space and time Explanatory ecology - underlying processes behind observed patterns. Processes may be proximal (near) or ultimate (final) Predictive ecology – use ecological knowledge and understanding to predict how organisms wil ...
... are the environmental variables, and what is the inherent variation in space and time Explanatory ecology - underlying processes behind observed patterns. Processes may be proximal (near) or ultimate (final) Predictive ecology – use ecological knowledge and understanding to predict how organisms wil ...
Comparison of the effects of artificial and natural barriers on large
... Abstract: Physical barriers contribute to habitat fragmentation, influence species distribution and ranging behaviour, and impact long-term population viability. Barrier permeability varies among species and can potentially impact the competitive balance within animal communities by differentially a ...
... Abstract: Physical barriers contribute to habitat fragmentation, influence species distribution and ranging behaviour, and impact long-term population viability. Barrier permeability varies among species and can potentially impact the competitive balance within animal communities by differentially a ...
Appendix
... Main findings: Two botanists re-sampled the species richness of plots that had been sampled by other botanists as part of a long-term monitoring program at local (10 m2) and landscape (12,500 m2) scales. Absolute differences in estimates of mean species richness were only 0.1 at the local and 5.0 at ...
... Main findings: Two botanists re-sampled the species richness of plots that had been sampled by other botanists as part of a long-term monitoring program at local (10 m2) and landscape (12,500 m2) scales. Absolute differences in estimates of mean species richness were only 0.1 at the local and 5.0 at ...
Biogeography
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. Phytogeography is the branch of biogeography that studies the distribution of plants. Zoogeography is the branch that studies distribution of animals.Knowledge of spatial variation in the numbers and types of organisms is as vital to us today as it was to our early human ancestors, as we adapt to heterogeneous but geographically predictable environments. Biogeography is an integrative field of inquiry that unites concepts and information from ecology, evolutionary biology, geology, and physical geography.Modern biogeographic research combines information and ideas from many fields, from the physiological and ecological constraints on organismal dispersal to geological and climatological phenomena operating at global spatial scales and evolutionary time frames.The short-term interactions within a habitat and species of organisms describe the ecological application of biogeography. Historical biogeography describes the long-term, evolutionary periods of time for broader classifications of organisms. Early scientists, beginning with Carl Linnaeus, contributed theories to the contributions of the development of biogeography as a science. Beginning in the mid-18th century, Europeans explored the world and discovered the biodiversity of life. Linnaeus initiated the ways to classify organisms through his exploration of undiscovered territories.The scientific theory of biogeography grows out of the work of Alexander von Humboldt (1769–1859), Hewett Cottrell Watson (1804–1881), Alphonse de Candolle (1806–1893), Alfred Russel Wallace (1823–1913), Philip Lutley Sclater (1829–1913) and other biologists and explorers.