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The biogeography of marine plankton traits
The biogeography of marine plankton traits

... Mapping the biogeography of functional traits will help reveal the mechanisms underlying variations in marine plankton communities because the dominant structuring factors should alter trait distributions in predictable ways. For example, temporal variation in light and nitrate leads to correspondin ...
Biodiversity and Ecosystem Functioning
Biodiversity and Ecosystem Functioning

... many areas, especially where natural ecosystems have been converted to croplands, timber plantations, aquaculture and other managed ecosystems. The diversity of these managed ecosystems is often low, and species composition very different, compared with those of the natural systems they have replace ...
Study Guide for Final
Study Guide for Final

... growth curves and the factors that affect each. Understand and be able to explain the concepts of carrying capacity, density-dependent limiting factors and density independent limiting factors. Understand what happens when a species overshoot the environment’s carrying capacity. Understand why the h ...
Using Phylogenetic, Functional and Trait Diversity to
Using Phylogenetic, Functional and Trait Diversity to

... polytomy with Liatris aspera and Coreopsis palmata because they are all considered members of the Asteroideae subfamily (see Appendix S1). For the analyses in the present paper, we pruned out the 10 species not used in experiment 120 (Fig. 1 shows the pruned phylogeny and Figure 1 in Appendix S1 sho ...
44KB - NZQA
44KB - NZQA

... This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. Special notes ...
Describe the principles of aquatic ecology and relate to aquaculture
Describe the principles of aquatic ecology and relate to aquaculture

... This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do. Special notes ...
Species-Area Relationship for Stream Fishes
Species-Area Relationship for Stream Fishes

... a stream may be viewed conceptually as an archipelago, albeit with two important differences from true islands. First, single patches of habitat are generally too small to support self-sustaining populations of fish. In this regard, stream habitats are analogous to small woodlots for bird population ...
The concept of potential natural vegetation: an epitaph?
The concept of potential natural vegetation: an epitaph?

... 2005; Rosas et al. 2008). Other smaller herbivores have been reduced in population or made extinct, while some others have been introduced, such as fallow deer (Dama dama L.) and moufflon (Ovis musimon L.). The mature vegetation that we can observe nowadays, such as ancient forests, largely developed ...
Course Correlation to Virginia Standards of Learning Name of
Course Correlation to Virginia Standards of Learning Name of

... • explain why carbon dioxide levels in the atmosphere are rising. • explain why some scientists believe that the Earth’s climate is getting warmer and describe the effects this will have on Earth. • define ozone and describe its structure. • describe how ozone shields the Earth. • explain how CFC’s ...
Interspecific Abundance-Range Size Relationships
Interspecific Abundance-Range Size Relationships

... Although there is considerable unexplained variance about positive interspecific abundance-range size relationships, the existence of the pattern has motivated a search for a general explanation that transcends the idiosyncrasies of particular assemblages. A number of mechanisms have been proposed, ...
Spatial and temporal patterns of genetic variation in the widespread
Spatial and temporal patterns of genetic variation in the widespread

... genetic differentiation does not seem to occur at small geographic scales often associated with discrete features such as individual seamounts or canyons, but presumably at larger scales, that is, broader oceanic regions. However, no studies to date have evaluated such hypotheses throughout the enti ...
A Critical Look at Reciprocity in Ecology and Evolution
A Critical Look at Reciprocity in Ecology and Evolution

... lution is thus seen as something that happened in the past but explains the present. The empirical work that dominated evolutionary ecology followed Hutchinson’s lead in implicitly treating organisms as the product of past evolution. Evolution provides an ultimate explanation for what we see but is ...
Variable elements of metacommunity structure across an aquatic
Variable elements of metacommunity structure across an aquatic

... relatively stronger roles than others in shaping community assembly (Mouillot 2007). Understanding metacommunity patterns and processes is fundamental not only to enhance our basic ecological understanding but also for developing strategies for effective restoration and bioassessment programmes (Hei ...
Overview of Ecological Responses to the Eruption of Mount St. Helens
Overview of Ecological Responses to the Eruption of Mount St. Helens

... to disturbances that may lead to the refinement of extant theory or the development of new constructs. Some of the lessons from Mount St. Helens have been consistent with findings from other disturbance studies, while others appear to be unique to the 1980 eruption of the volcano. This closing chapter ...
Effects of local adaptation and interspecific competition on species
Effects of local adaptation and interspecific competition on species

... Ann. N.Y. Acad. Sci. xxxx (2013) 1–15  ...
SPECIES-AREA RELATIONSHIPS SPECIES-AREA REL.ATIONSHIPS
SPECIES-AREA RELATIONSHIPS SPECIES-AREA REL.ATIONSHIPS

... Figure 8.1. Species-area relationship for land and water birds of the Sunda Islands. Numbers indicate different islands (1 = Christmas Island, 23 =New Guinea). Note the logarithmic transformation of both axes. Data such as these were used to support the equilibrium model, although other models may a ...
Grades K-2 Biodiversity 1. What is a group of organisms that can
Grades K-2 Biodiversity 1. What is a group of organisms that can

... 28. Which species went locally extinct in the early 1900s due to market hunting, but came back in the 1970s due to hunting laws and restocking ...
Multiple scale composition and spatial distribution patterns of the
Multiple scale composition and spatial distribution patterns of the

... 1 Bearing tree data were used to characterize the composition and spatial structure of the southern boreal presettlement forest in north-eastern Minnesota, United States of America. Data collected during the General Land Office Survey (GLO) between 1853 and 1917, represents 35 324 samples (each with ...
Positive interactions in ecology: filling the fundamental niche
Positive interactions in ecology: filling the fundamental niche

... increasing the spatial distribution (reducing dispersal limitations), or by modifying the physical and chemical conditions of the habitats. However, whether the new range of conditions experienced by the recipient species is greater than that predicted by the fundamental niche is uncertain because, ...
Dear Colleague
Dear Colleague

... 103. What observable variables can be used to assess the distance of a population from a “tipping-point” beyond which it is in jeopardy of extinction? 104. Can we accurately predict the “extinction debt” from the loss and fragmentation of natural habitats, and can we find ways to forestall paying it ...
Urban biodiversity: patterns and mechanisms
Urban biodiversity: patterns and mechanisms

... in bird abundance are often due to increases in nonnative species such as English sparrows and European starlings in North American studies and a subset of native species that are urban adapters and exploiters.3,12,13 In addition, subsets of bird species tend to increase (e.g., granivores) whereas o ...
Stochastic species distributions are driven by organism size
Stochastic species distributions are driven by organism size

... ecological determinism vs. stochasticity using a large data set comprising bacterio-, phyto-, and zooplankton. We expected that (1) there are predictable, size-driven differences in the degree to which planktonic taxa respond to different drivers such as water chemistry, biotic interactions, and cli ...
Habitat Fragmentation – In Theory
Habitat Fragmentation – In Theory

... This study examines the effects of habitat fragmentation on the carabid beetle species richness and abundance in fragmented forest habitats relative to non fragmented forest habitats. Based on previous studies, Davies and Margules hypothesized that carabid beetle species richness would decrease in ...
BiomePresentation project
BiomePresentation project

... to find out about one of the world’s biomes 2. Each group will orally present their biome to the class in PowerPoint or I Movie. (upload to Mrs. Dunnavant’s school web page) 3. Each student will become familiar with the names and basic characteristics of the different biomes and the populations they ...
Understanding the Distribution of Marine Megafauna in the English
Understanding the Distribution of Marine Megafauna in the English

... of data already exists in the form of observations of marine megafauna from shore-based, at-sea, aerial or animal platforms gathered by both specialists and the wider public, which could be used to help meet the pressing need of decision makers to protect these populations while allowing for resourc ...
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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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