Ziv 2000
... for the pattern is lacking. I modified the continuous-time logistic equation of population growth in two ways to allow for such a habitat-based theoretical framework. First, I separated birth rate from death rate. Second, I included two new terms in the equation: (1) an explicit spatial variable for ...
... for the pattern is lacking. I modified the continuous-time logistic equation of population growth in two ways to allow for such a habitat-based theoretical framework. First, I separated birth rate from death rate. Second, I included two new terms in the equation: (1) an explicit spatial variable for ...
Seddon et al. 2014
... and reinforcement The intentional movement and release of animals has occurred for millennia, but the use of translocations to address conservation objectives is barely 100 years old (8). In recent decades, there has been an increase in the number of species that are the focus of conservation transl ...
... and reinforcement The intentional movement and release of animals has occurred for millennia, but the use of translocations to address conservation objectives is barely 100 years old (8). In recent decades, there has been an increase in the number of species that are the focus of conservation transl ...
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... Taking the path of least resistance: how Multilevel and sex-specific selection on Identifying correlates of captive conservation science got left behind in competitive traits in North American red breeding success in amphibians, the design of the largest Canadian squirrels, David Fisher ...
... Taking the path of least resistance: how Multilevel and sex-specific selection on Identifying correlates of captive conservation science got left behind in competitive traits in North American red breeding success in amphibians, the design of the largest Canadian squirrels, David Fisher ...
Pattern of species occurrence in detritus
... The number of taxa did not influence the variability in the null distribution (r = 0.826, p = 0.084), and did not have a significant correlation with the SES (r = 0.881, p = 0.059). The total number of incidences increased the possibility of more configurations for the randomized matrices, and conse ...
... The number of taxa did not influence the variability in the null distribution (r = 0.826, p = 0.084), and did not have a significant correlation with the SES (r = 0.881, p = 0.059). The total number of incidences increased the possibility of more configurations for the randomized matrices, and conse ...
Distribution and ecology of copepods in mountainous regions of the
... amount of allochthonous nutrients from the watershed. Freshwater species assemblages may thus show affin- ...
... amount of allochthonous nutrients from the watershed. Freshwater species assemblages may thus show affin- ...
Introducing Ecosystems lecture PPT
... • Together, all of the individuals of a single species in a particular area make a population ...
... • Together, all of the individuals of a single species in a particular area make a population ...
The poverty of the protists
... greater than this. In the first place, lineages can be functionally different even if they share a considerable part of their genomes. He proposed 70% similarity as a conservative criterion to distinguish types that were likely to be as different, or more different, than closely related eukaryote sp ...
... greater than this. In the first place, lineages can be functionally different even if they share a considerable part of their genomes. He proposed 70% similarity as a conservative criterion to distinguish types that were likely to be as different, or more different, than closely related eukaryote sp ...
Part A - Board of Studies
... (i) This family of mistletoes does not occur naturally in the Northern Hemisphere but is found on Southern Hemisphere continents separated by large oceans. Use the theory of continental drift to explain this distribution. (ii) The Australian continent has experienced climatic change over millions of ...
... (i) This family of mistletoes does not occur naturally in the Northern Hemisphere but is found on Southern Hemisphere continents separated by large oceans. Use the theory of continental drift to explain this distribution. (ii) The Australian continent has experienced climatic change over millions of ...
2.1.1 Distribution and Abundance
... factors are the biotic factors that may influence an organism’s existence in an ecosystem. Even though there is a much greater variation in biotic factors between ecosystems (e.g. availability of worms as a food source for kookaburras in one ecosystem may be much higher than for kookaburras in anoth ...
... factors are the biotic factors that may influence an organism’s existence in an ecosystem. Even though there is a much greater variation in biotic factors between ecosystems (e.g. availability of worms as a food source for kookaburras in one ecosystem may be much higher than for kookaburras in anoth ...
PLATE TECTONICS
... students about the dynamic forces that shape our planet, as well as the evolution of the theory that was developed to explain these forces. In the activity on the back of the Earth Science Week poster, students examine some of the evidence that supports the idea that the surface of the Earth has mov ...
... students about the dynamic forces that shape our planet, as well as the evolution of the theory that was developed to explain these forces. In the activity on the back of the Earth Science Week poster, students examine some of the evidence that supports the idea that the surface of the Earth has mov ...
biology - Board of Studies
... 2 9 . The responses of animals to experimentally-induced infections are used as models to investigate human immunity. In an experiment to study the immune response of rabbits to a strain of bacteria, a small sample of the bacteria was injected into a group of rabbits at X. Blood samples were drawn f ...
... 2 9 . The responses of animals to experimentally-induced infections are used as models to investigate human immunity. In an experiment to study the immune response of rabbits to a strain of bacteria, a small sample of the bacteria was injected into a group of rabbits at X. Blood samples were drawn f ...
Mr G Davidson
... Biodiversity Biodiversity is the range of species which exists within an ecosystem. A stable ecosystem: Contains a wide variety of species. Can exist for a very long time. Is not affected by small changes. ...
... Biodiversity Biodiversity is the range of species which exists within an ecosystem. A stable ecosystem: Contains a wide variety of species. Can exist for a very long time. Is not affected by small changes. ...
Handbook - sealespcs
... In response to a rise in both air and sea temperatures, we can expect the distribution of species along our coast to change. Along the west coast of North America, many intertidal species are found from Alaska to Point Conception (northern species) or from northern California to Baja California (sou ...
... In response to a rise in both air and sea temperatures, we can expect the distribution of species along our coast to change. Along the west coast of North America, many intertidal species are found from Alaska to Point Conception (northern species) or from northern California to Baja California (sou ...
Chapter 50: Study Questions
... 1. What are the differences between abiotic and biotic factors in the environment? Give examples of each. 2. How can biotic factors change the environment? Give examples. 3. What is the difference between an endotherm and an ectotherm? 4. Why is sunlight so important? 5. How does light influence the ...
... 1. What are the differences between abiotic and biotic factors in the environment? Give examples of each. 2. How can biotic factors change the environment? Give examples. 3. What is the difference between an endotherm and an ectotherm? 4. Why is sunlight so important? 5. How does light influence the ...
Eligible Content for Keystone
... genetically modified organisms, gene therapy). 27.Explain how natural selection can impact allele frequencies of a population. Describe the factors that can contribute to the development of new species (e.g., isolating mechanisms, genetic drift, founder effect, migration). 28.Explain how genetic mut ...
... genetically modified organisms, gene therapy). 27.Explain how natural selection can impact allele frequencies of a population. Describe the factors that can contribute to the development of new species (e.g., isolating mechanisms, genetic drift, founder effect, migration). 28.Explain how genetic mut ...
Essentials of Geology Plate Tectonics: A Unifying Theory
... Early maps of South America and Africa led people to speculate that the continents may have been joined together and split Similarities exist between plant fossils on the southern continents. Glossopteris is the most conspicuous example of a unique flora in India, South Africa, Australia Similar gla ...
... Early maps of South America and Africa led people to speculate that the continents may have been joined together and split Similarities exist between plant fossils on the southern continents. Glossopteris is the most conspicuous example of a unique flora in India, South Africa, Australia Similar gla ...
AP Biology Ecology Unit Study Questions These questions are
... and Jackson’s study on the diversity of soil bacteria in habitats across North and South America? -‐ What are food chains? Food webs? How to the two relate? Why are food chains limited in ...
... and Jackson’s study on the diversity of soil bacteria in habitats across North and South America? -‐ What are food chains? Food webs? How to the two relate? Why are food chains limited in ...
Define the term trophic level. - science-b
... Communities may undergo shifts The dynamics of community change are more variable and less predictable than thought Competition may inhibit progression to another stage Chance factors also affect movement between stages Climax community may not be based on climate alone ...
... Communities may undergo shifts The dynamics of community change are more variable and less predictable than thought Competition may inhibit progression to another stage Chance factors also affect movement between stages Climax community may not be based on climate alone ...
Lafayette Parish School System 2013
... Unit Description and Student Understandings: In this unit, activities will focus on biomes and their characteristics; distinguishing among ecosystems, communities, populations, species, habitats, and niches; symbiotic relationships; and the impact of population changes on ecosystems. In this unit, a ...
... Unit Description and Student Understandings: In this unit, activities will focus on biomes and their characteristics; distinguishing among ecosystems, communities, populations, species, habitats, and niches; symbiotic relationships; and the impact of population changes on ecosystems. In this unit, a ...
Ecology and the Environmental Sciences
... Based on first principles of physics and chemistry (you know this too!), YOU would predict that as CO2 in the atmosphere increases ~30% over five decades, temperature in the atmosphere would do which of the following: decrease, increase or remain unchanged? ...
... Based on first principles of physics and chemistry (you know this too!), YOU would predict that as CO2 in the atmosphere increases ~30% over five decades, temperature in the atmosphere would do which of the following: decrease, increase or remain unchanged? ...
Pre-seminar Discussion Paper
... This meets the Outcome Description from the Scholarship Biology Standard is “The student will analyse biological situations in terms of ecological and evolutionary principles and demonstrate integration of biological knowledge and skills” ...
... This meets the Outcome Description from the Scholarship Biology Standard is “The student will analyse biological situations in terms of ecological and evolutionary principles and demonstrate integration of biological knowledge and skills” ...
Ocean: Source of the Water Cycle
... vertical zonation of the tidal zones. The spray zone is never submerged and only receives ocean water due to the splash from crashing waves. The high tide zone is only submerged briefly during the highest tides. The middle tide zone is regularly both exposed and submerged by the tide. The low tide z ...
... vertical zonation of the tidal zones. The spray zone is never submerged and only receives ocean water due to the splash from crashing waves. The high tide zone is only submerged briefly during the highest tides. The middle tide zone is regularly both exposed and submerged by the tide. The low tide z ...
Arctic lemmings: keystone species in a changing environment.
... population dynamics of lemmings in northern Canada. Understanding whether ongoing climate change will affect lemming population dynamics and their use of habitat in the Canadian Arctic is central to forecasting the future of arctic ecosystems. Consequently, Douglas Morris and Angélique Dupuch are ex ...
... population dynamics of lemmings in northern Canada. Understanding whether ongoing climate change will affect lemming population dynamics and their use of habitat in the Canadian Arctic is central to forecasting the future of arctic ecosystems. Consequently, Douglas Morris and Angélique Dupuch are ex ...
Principles of Ecology
... An ecosystem is a biological community and all of the abiotic factors that affect it. A biome is a large group of ecosystems that share the same climate and have similar types of communities. ...
... An ecosystem is a biological community and all of the abiotic factors that affect it. A biome is a large group of ecosystems that share the same climate and have similar types of communities. ...
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.