SPAR SWG changes to Ramsar Criteria
... Add additional guidance after current paragraph 188: A15. At some sites, more than one biogeographical population of the same species can occur, especially during migration periods and/or where flyway systems of different populations intersect at major wetlands. Where such populations are indistingu ...
... Add additional guidance after current paragraph 188: A15. At some sites, more than one biogeographical population of the same species can occur, especially during migration periods and/or where flyway systems of different populations intersect at major wetlands. Where such populations are indistingu ...
Hybridization, speciation
... habitat for the following reason: Two species differing in their habitat requirements will produce a first generation hybrid adjusted to a uniform intermediate environment. The second generation however consists of individuals each of which requires its own peculiar habitat for optimum development. ...
... habitat for the following reason: Two species differing in their habitat requirements will produce a first generation hybrid adjusted to a uniform intermediate environment. The second generation however consists of individuals each of which requires its own peculiar habitat for optimum development. ...
Rapid Evolutionary Change and the Coexistence of Species
... making coexistence more likely. In this framework a species’ mean fitness refers to the component of its population growth rate that is independent of its density and the density of competing species (see the sidebar on Ecological Versus Evolutionary Fitness for a further discussion of ecological fitn ...
... making coexistence more likely. In this framework a species’ mean fitness refers to the component of its population growth rate that is independent of its density and the density of competing species (see the sidebar on Ecological Versus Evolutionary Fitness for a further discussion of ecological fitn ...
Prentice Hall Biology
... crowded, resources are used up at a faster rate. – Occurs within species as well as among groups of species. – Species that compete will change to ease the competition – Drives evolution • Ex: plants and sunlight (canopies/black walnut) Go to Section: ...
... crowded, resources are used up at a faster rate. – Occurs within species as well as among groups of species. – Species that compete will change to ease the competition – Drives evolution • Ex: plants and sunlight (canopies/black walnut) Go to Section: ...
Guidelines for ISBT Naming of Blood Group Alleles
... diagnostic for the allele, e.g. RHCE intron 2 polymorphism associated with RHCE*02) has been analysed, even though in some cases this may not reflect the true allele (e.g., JK*02 or JK*B can be used when 838A is detected, even though on rare occasions an undetected inactivating mutation elsewhere in ...
... diagnostic for the allele, e.g. RHCE intron 2 polymorphism associated with RHCE*02) has been analysed, even though in some cases this may not reflect the true allele (e.g., JK*02 or JK*B can be used when 838A is detected, even though on rare occasions an undetected inactivating mutation elsewhere in ...
Department of Life and Earth Sciences (Alphabetical Order)
... and a fossilized, turbid reef in Enriquillo Valley, Dominican Republic. Macroboring patterns at each site were evaluated in four or five facies (lagoon, branching, mixed, massive, and platy) to discover how macroboring intensity and type varies with depth in the Caribbean. Coral samples were collec ...
... and a fossilized, turbid reef in Enriquillo Valley, Dominican Republic. Macroboring patterns at each site were evaluated in four or five facies (lagoon, branching, mixed, massive, and platy) to discover how macroboring intensity and type varies with depth in the Caribbean. Coral samples were collec ...
Reverse latitudinal trends in species richness of pitcher-plant food webs
... The food web in S. purpurea is unusual in demonstrating a latitudinal trend in species richness that is the reverse of that observed most frequently for individual guilds or taxa within trophic levels. Rather than increasing towards the equator as expected (Rosenzweig 1995), species richness in this ...
... The food web in S. purpurea is unusual in demonstrating a latitudinal trend in species richness that is the reverse of that observed most frequently for individual guilds or taxa within trophic levels. Rather than increasing towards the equator as expected (Rosenzweig 1995), species richness in this ...
Abiotic/Biotic factors - SandyBiology1-2
... Biotic factors : involve all those factors that are living. • For example– Competitors – Predators – Decomposers – Population Density – Disease ...
... Biotic factors : involve all those factors that are living. • For example– Competitors – Predators – Decomposers – Population Density – Disease ...
Explaining density-dependent regulation in earthworm populations
... reproduction and growth. The results imply that density-dependent regulation of population growth rate in earthworms can be quantified using life-history analysis and it appears that the outcomes of this analysis are in agreement with empirical observations under field conditions. Although the data ...
... reproduction and growth. The results imply that density-dependent regulation of population growth rate in earthworms can be quantified using life-history analysis and it appears that the outcomes of this analysis are in agreement with empirical observations under field conditions. Although the data ...
Genes to ecosystems: exploring the frontiers of
... impacted is probably caused by key quantitative traits of the foundation species, such as condensed tannins in cottonwoods, which, in turn, may have cascading effects on the community structure and ecosystem processes (Schweitzer et al., 2008a,b). Postulate 2 requires that the trait whose effect is ...
... impacted is probably caused by key quantitative traits of the foundation species, such as condensed tannins in cottonwoods, which, in turn, may have cascading effects on the community structure and ecosystem processes (Schweitzer et al., 2008a,b). Postulate 2 requires that the trait whose effect is ...
Abstracts
... The assessment of diversity at the DNA level is providing information on potential new sources of variability for broadening crop genetic base, and for linking diversity in-situ with ex-situ. Molecular mapping of crop genomic regions associated with traits of interest, jointly with genetic engineer ...
... The assessment of diversity at the DNA level is providing information on potential new sources of variability for broadening crop genetic base, and for linking diversity in-situ with ex-situ. Molecular mapping of crop genomic regions associated with traits of interest, jointly with genetic engineer ...
Social and landscape effects on food webs: a
... [9] for pitcher plants and [10] for beetles). In butterfly associated metacommunities, van Nouhuys and Hanski [8] present the competition/dispersal trade-off and several other multi-species interactions linking the community and the landscape level. For pitcher plant metacommunities, it was shown ho ...
... [9] for pitcher plants and [10] for beetles). In butterfly associated metacommunities, van Nouhuys and Hanski [8] present the competition/dispersal trade-off and several other multi-species interactions linking the community and the landscape level. For pitcher plant metacommunities, it was shown ho ...
Re-wilding North America Level - The National Evolutionary
... magnitude are staggering. Acquiring and preparing containment areas, breeding, releasing, and monitoring the animals, developing an infrastructure to allow tourism, and other unforeseen costs make this long term project a substantial investment. “Re-wilding” as this plan is called, is interesting on ...
... magnitude are staggering. Acquiring and preparing containment areas, breeding, releasing, and monitoring the animals, developing an infrastructure to allow tourism, and other unforeseen costs make this long term project a substantial investment. “Re-wilding” as this plan is called, is interesting on ...
Metoda Pemuliaan Tanaman Secara Khusus
... Why plant breeding needs plant biotechnology? Breeding: Application of genetics principles for improvement Combining desirable traits from different varieties of plants to produce plants of superior quality. Systematic procedures used to improve trait phenotypes by crossing and selection, dir ...
... Why plant breeding needs plant biotechnology? Breeding: Application of genetics principles for improvement Combining desirable traits from different varieties of plants to produce plants of superior quality. Systematic procedures used to improve trait phenotypes by crossing and selection, dir ...
PPT - Wildlife Ecology and Conservation
... – Males fight during rut • Head butts (usually not to the death) • Tongue licks and body kicks, “low-stretch” posture • Fighting technique ...
... – Males fight during rut • Head butts (usually not to the death) • Tongue licks and body kicks, “low-stretch” posture • Fighting technique ...
Secondary Productivity in Terrestrial Communities Institute of
... Intake of energy may be determined directly by field observations or by measuring food consumption in the laboratory. In laboratory experiments ecologists have devised ingenious techniques to provide organisms with suitable conditions and foods. In these investigations, the food is simply weighed be ...
... Intake of energy may be determined directly by field observations or by measuring food consumption in the laboratory. In laboratory experiments ecologists have devised ingenious techniques to provide organisms with suitable conditions and foods. In these investigations, the food is simply weighed be ...
Community and ecosystem effects of intraspecific genetic diversity in
... effects of genetic diversity on species composition and ecosystem functioning should be minor. However, several lines of evidence suggest genetic diversity could indirectly influence composition and functioning by altering the nature of interactions between species. For example, there is now consider ...
... effects of genetic diversity on species composition and ecosystem functioning should be minor. However, several lines of evidence suggest genetic diversity could indirectly influence composition and functioning by altering the nature of interactions between species. For example, there is now consider ...
Supplementary Materials - Nosil Lab of Evolutionary Biology
... S20 Willett, C.S. and Burton, R.S. (2003) Environmental influences on epistatic interactions: Viabilities of cytochrome c genotypes in interpopulation crosses. Evolution 57, 2286-2292 S21 Moyle, L.C. and Graham, E.B. (2005) Genetics of hybrid incompatibility between Lycopersicon esculentum and L-hir ...
... S20 Willett, C.S. and Burton, R.S. (2003) Environmental influences on epistatic interactions: Viabilities of cytochrome c genotypes in interpopulation crosses. Evolution 57, 2286-2292 S21 Moyle, L.C. and Graham, E.B. (2005) Genetics of hybrid incompatibility between Lycopersicon esculentum and L-hir ...
Chapter 16 Kin selection (in class version)
... count the number of steps needed. (ii) For this path r = 0.5 (number of steps). Thus, if two steps r for this path = 0.5 (2) = 0.25. (iii) To calculate final value of r you add together the r values calculated from each ...
... count the number of steps needed. (ii) For this path r = 0.5 (number of steps). Thus, if two steps r for this path = 0.5 (2) = 0.25. (iii) To calculate final value of r you add together the r values calculated from each ...
Australian Wildlife Protection Council (Word
... ‘The Kangaroo BETRAYED” (1999 Hill of Content Publishing, Melbourne ): "In any wild animal if you disrupt in a short period of time the normal reproductive processes that have evolved over tens of thousands of years you are in danger of putting the species at risk. Precedents have been set in other ...
... ‘The Kangaroo BETRAYED” (1999 Hill of Content Publishing, Melbourne ): "In any wild animal if you disrupt in a short period of time the normal reproductive processes that have evolved over tens of thousands of years you are in danger of putting the species at risk. Precedents have been set in other ...