Study of fragmented fossil diatoms using an invariant
... parasitology of the wild “botete diana” show the existence of a diverse parasitic fauna. Monogeneans and digeneans have been identified and when the fish are transferred to captivity, parasites with a direct life - cycle reproduce rapidly resulting in parasitic diseases that can lead to fish mortali ...
... parasitology of the wild “botete diana” show the existence of a diverse parasitic fauna. Monogeneans and digeneans have been identified and when the fish are transferred to captivity, parasites with a direct life - cycle reproduce rapidly resulting in parasitic diseases that can lead to fish mortali ...
English
... conservation of particular species or regions, where they represent a highly-unusual, often very ancient set of genes. Co-ancestry observations are available for an increasing part of the scientifically-known biodiversity Population genetic differentiation – This is another term for ‘heterogygozity’ ...
... conservation of particular species or regions, where they represent a highly-unusual, often very ancient set of genes. Co-ancestry observations are available for an increasing part of the scientifically-known biodiversity Population genetic differentiation – This is another term for ‘heterogygozity’ ...
A trait-based approach to community assembly
... higher SLA than most of the other species with which it occurs. Salix lucida, on the other hand, has a similar mean SLA to R. californicum, but this is decomposed into a high bi and an ai close to 0. The bi reflects its distribution in deciduous riparian woodlands, and its SLA is close to the averag ...
... higher SLA than most of the other species with which it occurs. Salix lucida, on the other hand, has a similar mean SLA to R. californicum, but this is decomposed into a high bi and an ai close to 0. The bi reflects its distribution in deciduous riparian woodlands, and its SLA is close to the averag ...
Ecological Consequences of Extinction
... majority of studies have found a positive but saturating relationship between richness and function, such that ecosystem function approaches its maximum level at some intermediate level of species richness (Schwartz et al., 2000). One explanation for this relationship is based on the ecosystem redun ...
... majority of studies have found a positive but saturating relationship between richness and function, such that ecosystem function approaches its maximum level at some intermediate level of species richness (Schwartz et al., 2000). One explanation for this relationship is based on the ecosystem redun ...
International Congress on Mycorrhizae: mycorrhizal
... Oral and poster presentations were scheduled within each topic, and they sparked a series of debates, underlined challenges and pointed to future directions. To assess the diversity and ecology of mycorrhizal fungi (topic (i)), clear questions and hypotheses, appropriate experimental design and repl ...
... Oral and poster presentations were scheduled within each topic, and they sparked a series of debates, underlined challenges and pointed to future directions. To assess the diversity and ecology of mycorrhizal fungi (topic (i)), clear questions and hypotheses, appropriate experimental design and repl ...
Origin and Evolution of a New Gene Descended From alcohol
... group of Drosophila; however, several results from molecular analyses of thisgene conflict with currently held notions of molecular evolution. Perhaps the most difficult observations to reconcile with the pseudogene hypothesis are that the hypothetical replacement sites of Adh-qh evolve only slightl ...
... group of Drosophila; however, several results from molecular analyses of thisgene conflict with currently held notions of molecular evolution. Perhaps the most difficult observations to reconcile with the pseudogene hypothesis are that the hypothetical replacement sites of Adh-qh evolve only slightl ...
Saccharomyces Genome Database provides mutant phenotype data.
... experiments performed to assess genetic interactions, such as dosage lethality, growth defect or rescue; and synthetic lethality, growth defect or rescue. In SGD, genetic interactions that affect viability or growth are also described using the same controlled phenotype vocabulary used for single mut ...
... experiments performed to assess genetic interactions, such as dosage lethality, growth defect or rescue; and synthetic lethality, growth defect or rescue. In SGD, genetic interactions that affect viability or growth are also described using the same controlled phenotype vocabulary used for single mut ...
The Eurexpress Project - All Hands Meeting 2011
... • In order to understand the developmental and physiological roles of genes it is important to know when and where genes are expressed ...
... • In order to understand the developmental and physiological roles of genes it is important to know when and where genes are expressed ...
video slide - Course
... • Decades ago, most ecologists favored the view that communities are in a state of equilibrium. ...
... • Decades ago, most ecologists favored the view that communities are in a state of equilibrium. ...
The Theoretical Role of Predators in Sterile
... do they reduce the longevity of wild individuals. It appears likely that this may have a bearing on the frequency of releases required to achieve optimum reduction of the pest population. 2. The numbers of an egg predator may be regulated within limits by the release of sterile females. For this to ...
... do they reduce the longevity of wild individuals. It appears likely that this may have a bearing on the frequency of releases required to achieve optimum reduction of the pest population. 2. The numbers of an egg predator may be regulated within limits by the release of sterile females. For this to ...
Costs and benefits of biological control of invasive alien
... an attempt to estimate the costs and benefits of the biocontrol of six weed species in South Africa. We estimated the costs of biological control research that was conducted on the plants, the rate at which each of these species spreads in the absence of biological control, and the degree to which s ...
... an attempt to estimate the costs and benefits of the biocontrol of six weed species in South Africa. We estimated the costs of biological control research that was conducted on the plants, the rate at which each of these species spreads in the absence of biological control, and the degree to which s ...
community - dsapresents.org
... • Decades ago, most ecologists favored the view that communities are in a state of equilibrium. ...
... • Decades ago, most ecologists favored the view that communities are in a state of equilibrium. ...
Mechanisms driving change: altered species interactions and
... 2009). These are in turn influenced by the numerous interactions that occur within and among species, as well as between species and environmental gradients such as rainfall, temperature and geology. As a general rule, ecosystem function is most resilient to change from disturbance where species dive ...
... 2009). These are in turn influenced by the numerous interactions that occur within and among species, as well as between species and environmental gradients such as rainfall, temperature and geology. As a general rule, ecosystem function is most resilient to change from disturbance where species dive ...
Macroecology of Microbes – Biogeography of the
... concept, which define species by their evolutionary lineages and ecological niches (Simpson 1961; Andersson 1990). According to these species concepts, species share common lineages where lineages evolve separately from others and are under the influence of similar selection pressures. Furthermore, ...
... concept, which define species by their evolutionary lineages and ecological niches (Simpson 1961; Andersson 1990). According to these species concepts, species share common lineages where lineages evolve separately from others and are under the influence of similar selection pressures. Furthermore, ...
Enemy free space and the structure of ecological
... This paper reviews the role of natural enemies in moulding ecological niches. Our aim is to show how many numerous aspects of the ecology of animal species that are traditionally reviewed as components of their niche, (body size, feeding stations, feeding methods, etc.), have been influenced, not by ...
... This paper reviews the role of natural enemies in moulding ecological niches. Our aim is to show how many numerous aspects of the ecology of animal species that are traditionally reviewed as components of their niche, (body size, feeding stations, feeding methods, etc.), have been influenced, not by ...
Guidlines for Reporting Large Carnivores
... 4. Guidelines and Procedures for responding to unverified reports of large carnivores Upon initial receipt of a report of a cougar, bear, or wolf, the following set of guidelines should be followed. It is imperative to remember that this is an issue about which the public is highly sensitive, and t ...
... 4. Guidelines and Procedures for responding to unverified reports of large carnivores Upon initial receipt of a report of a cougar, bear, or wolf, the following set of guidelines should be followed. It is imperative to remember that this is an issue about which the public is highly sensitive, and t ...
How life-history traits affect ecosystem properties: effects of dispersal
... The resource-ratio theory of plant coexistence (Tilman 1982, 1988), based on the seminal model of León and Tumpson (1975), has been instrumental in our understanding of the intimate linkage between stoichiometry, community assembly and ecosystem functioning. The theory applies to two resources the R ...
... The resource-ratio theory of plant coexistence (Tilman 1982, 1988), based on the seminal model of León and Tumpson (1975), has been instrumental in our understanding of the intimate linkage between stoichiometry, community assembly and ecosystem functioning. The theory applies to two resources the R ...
BMC Genomics Expansion of the Bactericidal/Permeability Increasing-like (BPI-like) protein locus in cattle
... in which pasture is the predominant source of metabolic energy. Most notably ruminants have a fore-stomach, the rumen, in which pasture polysaccharides are broken down by microbial β-glycosidases in a neutral pH anaerobic environment. In addition, ruminants have other adaptations, including a marked ...
... in which pasture is the predominant source of metabolic energy. Most notably ruminants have a fore-stomach, the rumen, in which pasture polysaccharides are broken down by microbial β-glycosidases in a neutral pH anaerobic environment. In addition, ruminants have other adaptations, including a marked ...
Primates of the Río Curaray
... discolor (N = 32) and Ateles belzebuth (N = 31); the least sightings were logged for C. pygmaea (N = 8), and Pithecia napensis1 (N = 16; Table 2). The smallest groups were those of C. discolor, Aotus vociferans and Pithecia napensis, and the largest were of Saimiri macrodon (previously Saimiri sciur ...
... discolor (N = 32) and Ateles belzebuth (N = 31); the least sightings were logged for C. pygmaea (N = 8), and Pithecia napensis1 (N = 16; Table 2). The smallest groups were those of C. discolor, Aotus vociferans and Pithecia napensis, and the largest were of Saimiri macrodon (previously Saimiri sciur ...
1 Introduction: Themes in the Study of Life
... 25. The History of Life on Earth KEY CONCEPTS 25.1 Conditions on early Earth made the origin of life possible 25.2 The fossil record documents the history of life 25.3 Key events in life’s history include the origins of single-celled and multicelled organisms and the colonization of land 25.4 The ri ...
... 25. The History of Life on Earth KEY CONCEPTS 25.1 Conditions on early Earth made the origin of life possible 25.2 The fossil record documents the history of life 25.3 Key events in life’s history include the origins of single-celled and multicelled organisms and the colonization of land 25.4 The ri ...
Mechanisms of species divergence through visual adaptation and
... ranging from elongated fins and feathers to bright colours and elaborate birdsong (Andersson, 1994). These phenomena derive from mechanisms of selective mating that are mediated by two independent traits: a sexual preference, which is often expressed only in females, and a preferred trait, typically ...
... ranging from elongated fins and feathers to bright colours and elaborate birdsong (Andersson, 1994). These phenomena derive from mechanisms of selective mating that are mediated by two independent traits: a sexual preference, which is often expressed only in females, and a preferred trait, typically ...
1. Introduction: Themes in the Study of Life Unit 1 The Chemistry of
... 25. The History of Life on Earth KEY CONCEPTS 25.1 Conditions on early Earth made the origin of life possible 25.2 The fossil record documents the history of life 25.3 Key events in life’s history include the origins of single-celled and multicelled organisms and the colonization of land 25.4 The ri ...
... 25. The History of Life on Earth KEY CONCEPTS 25.1 Conditions on early Earth made the origin of life possible 25.2 The fossil record documents the history of life 25.3 Key events in life’s history include the origins of single-celled and multicelled organisms and the colonization of land 25.4 The ri ...
Assembly Models - Ecology - Oxford
... Understanding the processes that drive the assembly of a community has been a central theme of ecology since the foundation of the discipline. It concerns basic questions such as how do we start from a regional species pool to assemble a structured community? How many species should be found at a gi ...
... Understanding the processes that drive the assembly of a community has been a central theme of ecology since the foundation of the discipline. It concerns basic questions such as how do we start from a regional species pool to assemble a structured community? How many species should be found at a gi ...
Chapters 25-27 sample exam
... 10. (CH26) Since the time research on the Brazilian water hyacinth was performed, 25 years ago, northeastern Brazil has been further fragmented by deforestation and road-building. Given what you know about the dynamics of this species and metapopulation dynamics in general, predict what will happen ...
... 10. (CH26) Since the time research on the Brazilian water hyacinth was performed, 25 years ago, northeastern Brazil has been further fragmented by deforestation and road-building. Given what you know about the dynamics of this species and metapopulation dynamics in general, predict what will happen ...
Ranchers as a Keystone Species in a West That Works By Richard L
... important. The private lands are disproportionately important to the maintenance of our region’s natural heritage because they are disproportionately more productive. Although no one has calculated the ratio, private lands may be an order of magnitude more important to the maintenance of the region ...
... important. The private lands are disproportionately important to the maintenance of our region’s natural heritage because they are disproportionately more productive. Although no one has calculated the ratio, private lands may be an order of magnitude more important to the maintenance of the region ...