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Ecology
Ecology

... 9. All the life on Earth is part of this system __________________________________. 10. A geographic area that is made of many ecosystems is called a ___________________________. (Example: Grasslands) ...
CH - NIMBioS
CH - NIMBioS

... terHorst, Miller, and Power model A problem is that the model essentially acts through group selection. It creates variation in resource use among populations, then selections the population that has the highest growth rate. This form of modeling competitors has been shown to be inaccurate. ...
Continental Drift
Continental Drift

... Continental Drift • Some continents look like they fit like puzzle pieces • Ex. South America and Africa • Alfred Wegner proposed theory of continental drift. • Continental drift, continents have moved slowly to their current locations. ...
Habitat selection determines abundance, richness and species
Habitat selection determines abundance, richness and species

... While both local and larger scale regional processes influence population and community structure, ecologists lack a critical understanding of how processes operating at different scales interact to influence patterns of distribution and diversity (Shurin & Allen 2001; Kneitel & Miller 2003; Leibold ...
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22 Landscape Ecol 2009-2

... How do corridors affect gene flow? Inbreeding? genetic cohesion of metapop? ...
New Zealand`s dryland biodiversity situation
New Zealand`s dryland biodiversity situation

... Led by DOC (Canterbury) with range of cofunders • Can native woody species establish in exotic woody stands in drylands? • Do woody weeds facilitate native establishment in dryland environments? ...
EPILOGUE
EPILOGUE

... ways. The four islands parallel the coastline and span some 80 km. They vary considerably in elevation, area, and habitat (Nelson 1899). Yet, all the previous studies (Grant 1966: Simberloff 1970; Strong et al. 1979; Grant and Abbott 1980; Hendrickson 1981; Simberloff 1984) treated the four islands ...
Estuarine Habitats
Estuarine Habitats

... students of ecology. A number of factors limit the type of organism that can be found in each part of the estuary. These factors include: salinity (saltiness), presence or absence of water, type of soil or substrate, availability of food or shelter, temperature, currents, and availability of light. ...
Dispersal and persistence
Dispersal and persistence

... Debate: Vicariance vs Dispersal What is the relative importance of long-distance dispersal events and vicariance (population-splitting events)? Eclecticist - dispersal and vicariance events are both important ...
Review - TeacherWeb
Review - TeacherWeb

... Biogeochemical cycles describe the flow of essential elements from the environment to living things and back to the environment. The following list the major storage locations (reservoirs) for essential elements, the processes through which each element incorporates into terrestrial plants and anima ...
2 Precambrian Time and the Paleozoic Era
2 Precambrian Time and the Paleozoic Era

... Scientists study and compare fossils from different times in Earth’s history. By studying fossils, scientists have discovered evidence that species have changed over time. Scientists use the term evolution to describe this change. Evolution is the process in which new species develop from existing s ...
biology_notes_-_module_1_-_version_2 - HSC Guru
biology_notes_-_module_1_-_version_2 - HSC Guru

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Topic 4 - OoCities
Topic 4 - OoCities

... seen by predators while the speckled one is camoulflaged. When on a tree covered in lichens, the peppered moth blends in very well. The number of speckled moths was greater than the number of black moths, because the speckled genes made the speckled moths more suitable for thier environment of liche ...
13.1 Ecologists Study Relationships
13.1 Ecologists Study Relationships

... • A keystone species is a species that has an unusually large effect on its ecosystem. (pg. 404) • Example: beaver – Beavers use trees to construct dams, which create ponds, wetlands and meadows – This increases numbers and types of fish – Insects attracted to the dead trees which then attracts inse ...
Neutral Ecological Theory Reveals Isolation and Rapid Speciation
Neutral Ecological Theory Reveals Isolation and Rapid Speciation

... CFR plants are thought to have very low migration rates (6). High levels of endemism among CFR species are associated with low observed seed-dispersal distances and shortdistance dispersal modes (ant and passive dispersal) (7). Even among Mediterranean-climate regions, the CFR has very high rates of ...
View PDF - tropecol.com
View PDF - tropecol.com

... together more or less by chance, while if they are not indifferent (i.e. dependent) they will occur together more often or less often than can be expected by chance, which is expressed in terms of Coles index. As we have encountered in this study, many species do not express any significant associat ...
Adaptations Teacher`s Guide
Adaptations Teacher`s Guide

... oxygen dissolved in water may suffocate if oxygen levels drop due to pollution. An animal adapted to a specific food cannot survive if the food source is lost. A plant dependent upon periodic fire for its seed to drop and germinate may not expand its populations if wildfires are controlled. Fossils, ...
What is the basis for biological evolution and geolog
What is the basis for biological evolution and geolog

... EQ: What is the basis for biological evolution and geological evolution? 1. In Scenario 1, which beak do you think should be the most adapted to the environment? Why? 2. Based on your observations, which beak was the most adapted to the environment? 3. Did your answer in #1 match your answer in #2? ...
The Balance of Nature
The Balance of Nature

... degrade - the distance depends on how far Bubba is willing to walk with a 6 pack of beer under one arm, and a shotgun under the other… Density-dependent regulation can be subtle ...
Evolution
Evolution

...  Comparisons of the similarities in these molecules across species reflect evolutionary patterns seen in comparative anatomy and in the fossil record.  Organisms with closely related morphological features have more closely related molecular features. ...
Summary
Summary

... western Austria. The Pannonian Area in the eastern part of Austria has a large number of species. Therefore, by carrying out a general analysis of the whole of Austria, it can be said that the western part is being underrated in comparison to the eastern part. Thus, Austria is particularly responsib ...
14 -The Tidelands
14 -The Tidelands

... depend upon steady recruitment of larvae of competing species • What if recruitment is variable? • Competitively superior species might not take over, owing to low rates of recruitment • Recruitment might be reduced if currents are not favorable, high water flow results in flushing of larvae from in ...
General Biology II Course Outcome Summary Course Information
General Biology II Course Outcome Summary Course Information

... Discuss behavioral ecology Learning Objectives a. Describe Foraging behavior b. Explain how organisms within a group communicate with each other c. Discuss altruism d. Discuss the impact of genetics and learning on behavior e. Explain what is involved in movement and migration Describe population ec ...
Invaders - Lesson Corner
Invaders - Lesson Corner

... Interactions and Relationships among Organisms. Explain to students that interspecific competition can occur between other species besides animals. Provide students with a Focus FOR MEDIA INTERACTION by asking students to watch the next video sequence for what organisms are competing in a meadow. PL ...
Plate Tectonics Notes
Plate Tectonics Notes

... • Wegener found similar fossils on different continents • The fossils that he found could probably not have spread between continents • Freshwater reptile fossil • Plant fossil • Similarly evolved species • Why are these two significant? Would finding a bird on two continents support continental dri ...
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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.
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