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Evolutionary branching and sympatric speciation
... this evolutionary process. In the first, subpopulations of a given species are thought to become geographically isolated, after which they follow separate evolutionary paths, eventually leading to different species that are reproductively isolated even after secondary contact (Mayr 1963). Since the ...
... this evolutionary process. In the first, subpopulations of a given species are thought to become geographically isolated, after which they follow separate evolutionary paths, eventually leading to different species that are reproductively isolated even after secondary contact (Mayr 1963). Since the ...
link to thesis - Victoria University of Wellington
... Two families of brown macroalgae that occur in sympatry dominate temperate subtidal rocky coasts: the Laminareales, and the Fucales. Both of these families are habitat-forming species for a wide variety of invertebrates and fishes. Variation in the presence, density, and composition of brown macroal ...
... Two families of brown macroalgae that occur in sympatry dominate temperate subtidal rocky coasts: the Laminareales, and the Fucales. Both of these families are habitat-forming species for a wide variety of invertebrates and fishes. Variation in the presence, density, and composition of brown macroal ...
22_lpp05_yran
... Remnant vegetation areas are sensitive to disturbance through indiscriminate and incremental clearing which can result in the intrusion of environmental weeds and the loss of habitat for plants and animals. Remnant vegetation also provides a source of seeds and other propagation material for reveget ...
... Remnant vegetation areas are sensitive to disturbance through indiscriminate and incremental clearing which can result in the intrusion of environmental weeds and the loss of habitat for plants and animals. Remnant vegetation also provides a source of seeds and other propagation material for reveget ...
Schluter TREE 2001
... cases have recently emerged. I review the mechanisms that give rise to new species by divergent selection, compare ecological speciation with its alternatives, summarize recent tests in nature, and highlight areas requiring research. ECOLOGICAL SPECIATION (see Glossary) occurs when DIVERGENT SELECTI ...
... cases have recently emerged. I review the mechanisms that give rise to new species by divergent selection, compare ecological speciation with its alternatives, summarize recent tests in nature, and highlight areas requiring research. ECOLOGICAL SPECIATION (see Glossary) occurs when DIVERGENT SELECTI ...
BIODIVERSITY AND CONSERVATION
... SEED BANKS PRESERVE GENETIC LINEAGES OF CULTIVATED PLANTS http://www.nytimes.com/slideshow/2008/02/28/world/200802 28VAULT_10.html ...
... SEED BANKS PRESERVE GENETIC LINEAGES OF CULTIVATED PLANTS http://www.nytimes.com/slideshow/2008/02/28/world/200802 28VAULT_10.html ...
Biology
... -Relate current biological study to major discoveries that have contributed to the understanding of living things. -Use current research findings in evaluating significant issues related to biology. -Recommended periodical reading list: Scientific American Discover Science News UIL Biology, Page 1 o ...
... -Relate current biological study to major discoveries that have contributed to the understanding of living things. -Use current research findings in evaluating significant issues related to biology. -Recommended periodical reading list: Scientific American Discover Science News UIL Biology, Page 1 o ...
Open Access
... As a consequence of agricultural intensification, large areas of species-rich grasslands have been lost and farmland biodiversity has declined. Previous studies have shown that the continuity of grazing management can have a significant influence on the environmental conditions and the levels of pla ...
... As a consequence of agricultural intensification, large areas of species-rich grasslands have been lost and farmland biodiversity has declined. Previous studies have shown that the continuity of grazing management can have a significant influence on the environmental conditions and the levels of pla ...
An overview of studies on trophic ecology in the
... and high latitudes (Chardy and Clavier, 1988). In the tropical zone this kind of study is more complex since a large number of species are present and are frequently represented by only a few individuals. The high biological diversity obscures the recognition of specific food webs responsible for th ...
... and high latitudes (Chardy and Clavier, 1988). In the tropical zone this kind of study is more complex since a large number of species are present and are frequently represented by only a few individuals. The high biological diversity obscures the recognition of specific food webs responsible for th ...
7th gd Ecosystems And Biomes
... Earth is Continental Drift —the movement of the continents on top of large continental plates of rock. ...
... Earth is Continental Drift —the movement of the continents on top of large continental plates of rock. ...
Appendix 2 - City of Stirling
... Moderate, according to their invasiveness, distribution and environmental impact. ...
... Moderate, according to their invasiveness, distribution and environmental impact. ...
Marsh Bird Breeding Habitat
... Their annual fall migrations concentrate these species of bats at stopover areas. The location and characteristics of stopover habitats are generally unknown. Information Sources OMNR for possible locations and contact for local experts University Biology Departments with bat experts. ...
... Their annual fall migrations concentrate these species of bats at stopover areas. The location and characteristics of stopover habitats are generally unknown. Information Sources OMNR for possible locations and contact for local experts University Biology Departments with bat experts. ...
7. Annex 2 – Review of Theoretical Community Ecology
... Knowing that the mean size of fish in the assemblage has decreased provides little or no information about changes in the biodiversity of the fish assemblage; neither does it help managers to set biodiversity objectives or identify appropriate measures to achieve these. In order to address questions ...
... Knowing that the mean size of fish in the assemblage has decreased provides little or no information about changes in the biodiversity of the fish assemblage; neither does it help managers to set biodiversity objectives or identify appropriate measures to achieve these. In order to address questions ...
AN ABSTRACT OF THE THESIS OF
... and observational study. I also need to express my deep gratitude to the members of the Garcia lab (Nick Baker, Megan Cook, Jennifer Rowe, Lindsey Thurman) for adopting me and allowing me to participate in their wonderfully collaborative lab. They provided highly productive reviews of posters, prese ...
... and observational study. I also need to express my deep gratitude to the members of the Garcia lab (Nick Baker, Megan Cook, Jennifer Rowe, Lindsey Thurman) for adopting me and allowing me to participate in their wonderfully collaborative lab. They provided highly productive reviews of posters, prese ...
Significant Wildlife Habitat Criteria Schedules For Ecoregion 3E
... highly concentrated within relatively small areas. In spring and autumn, migratory wildlife species will concentrate where they can rest and feed. Other wildlife species require habitats where they can survive winter. Examples of Seasonal Concentration Areas include breeding bird colonies and hibern ...
... highly concentrated within relatively small areas. In spring and autumn, migratory wildlife species will concentrate where they can rest and feed. Other wildlife species require habitats where they can survive winter. Examples of Seasonal Concentration Areas include breeding bird colonies and hibern ...
Willow-characterised shrub vegetation in tundra and its relation to
... possible language teacher and also a wonderful and supportive friend. During the years 2007–2008 I was offered a possibility to work at the Botanical museum of Helsinki. During this time Teuvo Ahti helped me with lichen identication and Henry Väre with willow specimens. When staying in Rovaniemi, ...
... possible language teacher and also a wonderful and supportive friend. During the years 2007–2008 I was offered a possibility to work at the Botanical museum of Helsinki. During this time Teuvo Ahti helped me with lichen identication and Henry Väre with willow specimens. When staying in Rovaniemi, ...
The role of macrophytes in habitat structuring in aquatic
... related to the habitat structural complexity provided by these plants, exploring: i) how complexity has been viewed by ecologists, with an emphasis on macrophyte studies; ii) the pros and cons of several methods used to quantify plant complexity; iii) the consequences of habitat structuring by macro ...
... related to the habitat structural complexity provided by these plants, exploring: i) how complexity has been viewed by ecologists, with an emphasis on macrophyte studies; ii) the pros and cons of several methods used to quantify plant complexity; iii) the consequences of habitat structuring by macro ...
PDF, 2241 KB - URPP GCB
... Mangroves on Aldabra Atoll – stand diversity, structure, and long term area change for a key conservation habitat. ........................................................................................................................... 63 Shifting environmental ranges and biome potential accordin ...
... Mangroves on Aldabra Atoll – stand diversity, structure, and long term area change for a key conservation habitat. ........................................................................................................................... 63 Shifting environmental ranges and biome potential accordin ...
Nevada Wildlife Action Plan - Nevada Department of Wildlife
... Intermountain Cold Desert Shrub is the most important habitat in Nevada for several Species of Conservation Priority, including pale kangaroo mouse and Loggerhead Shrike. Soils of this habitat tend to be loose and either sandy or gravelly and are often easy to dig. Blow sand tends to accumulate arou ...
... Intermountain Cold Desert Shrub is the most important habitat in Nevada for several Species of Conservation Priority, including pale kangaroo mouse and Loggerhead Shrike. Soils of this habitat tend to be loose and either sandy or gravelly and are often easy to dig. Blow sand tends to accumulate arou ...
Marine Ecology Progress Series 311:273
... between the biogeochemically active systems they are now towards depauperate, predominantly geochemical systems (i.e. uninfluenced by biology), intense ecological research is necessary now and in the near future (Naeem et al. 2000, Hooper et al. 2005). Certainly there is evidence that both biodivers ...
... between the biogeochemically active systems they are now towards depauperate, predominantly geochemical systems (i.e. uninfluenced by biology), intense ecological research is necessary now and in the near future (Naeem et al. 2000, Hooper et al. 2005). Certainly there is evidence that both biodivers ...
2.86 MB - Participate Melbourne
... action is required to support and enhance it. By considering our city as an ecosystem, there is the opportunity to actively foster connections between people, plants, animals and the landscape, to create the legacy of a resilient, balanced and healthy urban environment for future generations to enjo ...
... action is required to support and enhance it. By considering our city as an ecosystem, there is the opportunity to actively foster connections between people, plants, animals and the landscape, to create the legacy of a resilient, balanced and healthy urban environment for future generations to enjo ...
DRAFT URBAN ECOLOGY AND BIODIVERSITY STRATEGY The
... green layers contribute to its status as one of the world’s most liveable cities. Whilst much is heard about Melbourne’s liveability, its rich biological diversity is less often celebrated. Biological diversity refers to a variety of nature, including all living organisms and the ecosystems they for ...
... green layers contribute to its status as one of the world’s most liveable cities. Whilst much is heard about Melbourne’s liveability, its rich biological diversity is less often celebrated. Biological diversity refers to a variety of nature, including all living organisms and the ecosystems they for ...
Deep-Sea Ecosystems: Pristine Biodiversity Reservoir and
... useful for photosynthesis does not reach below ~250 m depth) and high pressure (1 atmosphere every 10 m depth). This relatively uniform distribution of physical factors led to the belief that abyssal plains were very stable habitats where physical and biological processes remained unchanged over sho ...
... useful for photosynthesis does not reach below ~250 m depth) and high pressure (1 atmosphere every 10 m depth). This relatively uniform distribution of physical factors led to the belief that abyssal plains were very stable habitats where physical and biological processes remained unchanged over sho ...
Restoration Ecology: Interventionist Approaches for - LERF
... different system components will return, and how possible it is to recreate past ecosystems. Moving beyond these myths is a key element of developing more successful restoration strategies. Ideas from succession theory and ecosystem assembly can be useful in this context (31, 32), and allowing norma ...
... different system components will return, and how possible it is to recreate past ecosystems. Moving beyond these myths is a key element of developing more successful restoration strategies. Ideas from succession theory and ecosystem assembly can be useful in this context (31, 32), and allowing norma ...
Conservation Assessment of Satyrium polingi organensis - bison-m
... The life history details for SPO are still only minimally known, and we hope to learn more about that in Year 2 of the study. SPO life history probably mimics that of SPP, and perhaps closely resembles life histories of other members of the subgenus Fixsenia except for the species of oak used. We wi ...
... The life history details for SPO are still only minimally known, and we hope to learn more about that in Year 2 of the study. SPO life history probably mimics that of SPP, and perhaps closely resembles life histories of other members of the subgenus Fixsenia except for the species of oak used. We wi ...
Management of Marsh-Upland Transitional Habitats
... Site specific efforts move beyond distribution, quality and type and attempt to delve into the processes (physical, chemical, biological) that drive the formation of transition zones. These efforts are useful for “on the ground” design efforts. Site specific mapping techniques can quantify and deter ...
... Site specific efforts move beyond distribution, quality and type and attempt to delve into the processes (physical, chemical, biological) that drive the formation of transition zones. These efforts are useful for “on the ground” design efforts. Site specific mapping techniques can quantify and deter ...
Biogeography
![](https://commons.wikimedia.org/wiki/Special:FilePath/Wallace_biogeography.jpg?width=300)
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.