1 Chemical Organizations in the Central Sugar Metabolism of
... state flux distributions in metabolic networks [10]. In this paper, we employ the theory of chemical organizations [3] as a novel tool to analyze intracellular reaction networks. The network is decomposed into sub-networks that are (algebraically) closed and self-maintaining, revealing the internal ...
... state flux distributions in metabolic networks [10]. In this paper, we employ the theory of chemical organizations [3] as a novel tool to analyze intracellular reaction networks. The network is decomposed into sub-networks that are (algebraically) closed and self-maintaining, revealing the internal ...
Molecular and General Genetics
... L. actobacilluscasei or Cys146 in E. coli Tsase). This Cys is conserved in all TS proteins known, which is consistent with its key function in binding and catalysis (Dev et. al. 1988). The consensus sequences in the active site region of Thy A and ThyB were found to dier at two ...
... L. actobacilluscasei or Cys146 in E. coli Tsase). This Cys is conserved in all TS proteins known, which is consistent with its key function in binding and catalysis (Dev et. al. 1988). The consensus sequences in the active site region of Thy A and ThyB were found to dier at two ...
THE POPULATION BIOLOGY OF INVASIVE SPECIES Ann K. Sakai
... Bastrop et al. 1998, Pellmyr et al. 1998, Slade & Moritz 1998, Wilson et al. 1999), genetic diversity, and the potential for the rapid evolution of these species may provide novel insights into the colonization dynamics and spread of invasive taxa. The continuing development of new approaches in lif ...
... Bastrop et al. 1998, Pellmyr et al. 1998, Slade & Moritz 1998, Wilson et al. 1999), genetic diversity, and the potential for the rapid evolution of these species may provide novel insights into the colonization dynamics and spread of invasive taxa. The continuing development of new approaches in lif ...
Floral Evolution - Harvard University Center for the Environment
... increase may have been dramatically higher [13]. The methods available for ancestral character state reconstruction, however, do not allow us to determine whether size increase along this lineage was gradual or occurred in one or more rapid bursts. Now, Barkman et al. [14], in a recent issue of Curr ...
... increase may have been dramatically higher [13]. The methods available for ancestral character state reconstruction, however, do not allow us to determine whether size increase along this lineage was gradual or occurred in one or more rapid bursts. Now, Barkman et al. [14], in a recent issue of Curr ...
Small-mammal abundance at three elevations on a mountain in
... structure of forest ¯oor small mammals is limited. Mice of the genus Peromyscus are widespread across North America (Baker, 1968; Hooper, 1968; Smith, 1989) and across New England (DeGraaf and Rudis, 1987). They are among the most common, if not the most common small mammal in the northeastern decid ...
... structure of forest ¯oor small mammals is limited. Mice of the genus Peromyscus are widespread across North America (Baker, 1968; Hooper, 1968; Smith, 1989) and across New England (DeGraaf and Rudis, 1987). They are among the most common, if not the most common small mammal in the northeastern decid ...
MACROALGAL ABUNDANCE IN INTERTIDAL ZONE OF
... Macroalgae or seaweeds are an ecologically and economically important component of marine ecosystems worldwide. They are primary producers, shelter, nursery grounds and food sources for marine organisms. In addition, they are used around the world as foods and fertilizer, and for the extraction of v ...
... Macroalgae or seaweeds are an ecologically and economically important component of marine ecosystems worldwide. They are primary producers, shelter, nursery grounds and food sources for marine organisms. In addition, they are used around the world as foods and fertilizer, and for the extraction of v ...
Amphibian Survival Alliance (ASA)
... of migratory birds. Concerned by the extent and negative trends of these activities in the European continent, in 2011 the Bern Convention promoted the organisation of the first "European Conference on illegal killing of birds" (Larnaca, Cyprus), delivering the so-called “Larnaca Declaration” to pro ...
... of migratory birds. Concerned by the extent and negative trends of these activities in the European continent, in 2011 the Bern Convention promoted the organisation of the first "European Conference on illegal killing of birds" (Larnaca, Cyprus), delivering the so-called “Larnaca Declaration” to pro ...
Chap.19 Extinction, conservation and restoration
... 19.3 Body size, longevity, and population size interact to affect the risk of extinction. • The rate at which the population returns to its equilibrium is referred t as the resilience of the population. • Pimm (1991) Longevity and body size – In cases in which population are small, all else being e ...
... 19.3 Body size, longevity, and population size interact to affect the risk of extinction. • The rate at which the population returns to its equilibrium is referred t as the resilience of the population. • Pimm (1991) Longevity and body size – In cases in which population are small, all else being e ...
3 - Biology Junction
... An ecologist may set up an artificial environment in a laboratory to imitate and manipulate conditions that organisms would encounter in the wild. Other experiments are conducted within natural ecosystems. ...
... An ecologist may set up an artificial environment in a laboratory to imitate and manipulate conditions that organisms would encounter in the wild. Other experiments are conducted within natural ecosystems. ...
Ecological Reference Points for Forage Species
... principle. In this paper, we review what is becoming an accepted standard for conserving and managing forage species. Managing for Higher Abundance For forage species, population size – or standing biomass - constitutes the principal measure of whether or not there is sufficient prey available to me ...
... principle. In this paper, we review what is becoming an accepted standard for conserving and managing forage species. Managing for Higher Abundance For forage species, population size – or standing biomass - constitutes the principal measure of whether or not there is sufficient prey available to me ...
Fifty years of change in northern upland forest understories: Identity
... species richness (Olden and Rooney, 2006). Homogenization can arise from species invasion, species extinction, or both and can either increase or decrease species richness (Rahel, 2000; Olden and Poff, 2004). In these forest plant communities, stands that gained the most species over the last 50 yea ...
... species richness (Olden and Rooney, 2006). Homogenization can arise from species invasion, species extinction, or both and can either increase or decrease species richness (Rahel, 2000; Olden and Poff, 2004). In these forest plant communities, stands that gained the most species over the last 50 yea ...
S. altissima
... bud (Fig. 1)(1). Fly galls are subject to predation from birds and other insects, including a beetle and two parasitic wasps (1). This interaction has been used to demonstrate balancing selection and to study trophic interactions (1,2,3). An open question remains whether host plant or habitat specia ...
... bud (Fig. 1)(1). Fly galls are subject to predation from birds and other insects, including a beetle and two parasitic wasps (1). This interaction has been used to demonstrate balancing selection and to study trophic interactions (1,2,3). An open question remains whether host plant or habitat specia ...
Biology Slide 1 of 21 End Show
... An ecologist may set up an artificial environment in a laboratory to imitate and manipulate conditions that organisms would encounter in the wild. Other experiments are conducted within natural ecosystems. ...
... An ecologist may set up an artificial environment in a laboratory to imitate and manipulate conditions that organisms would encounter in the wild. Other experiments are conducted within natural ecosystems. ...
(2016). Exotics Exhibit More Evolutionary History Than Natives
... Exotics exhibit more evolutionary history than natives 123 INTRODUCTION In the past, the rate at which species colonized new areas, such as distant islands, was relatively slow, and long‐distance dispersal events were rare. As a result, species within biogeographic regions shared much of their ev ...
... Exotics exhibit more evolutionary history than natives 123 INTRODUCTION In the past, the rate at which species colonized new areas, such as distant islands, was relatively slow, and long‐distance dispersal events were rare. As a result, species within biogeographic regions shared much of their ev ...
Temperature-dependent geographic variation
... With regard to the five populations examined here, previous ecological studies examined interflash intervals only and classified them into two groups; namely, Matsuo-kyo and the other four (Kanda 1935; Ohba 1988; Suzuki et al. 2002). However, my result clearly classified them into three groups; name ...
... With regard to the five populations examined here, previous ecological studies examined interflash intervals only and classified them into two groups; namely, Matsuo-kyo and the other four (Kanda 1935; Ohba 1988; Suzuki et al. 2002). However, my result clearly classified them into three groups; name ...
Sun, surf and spiders - European Society of Arachnology
... and Diaea into the cosmopolitan genus Misumenops. Suman’s revision resulted in recognition of several new species, giving twenty-one total described species (seventeen species in Misumenops). Therefore, based on this later revision, there are at least three potential clades (Misumenops, Mecaphesa, a ...
... and Diaea into the cosmopolitan genus Misumenops. Suman’s revision resulted in recognition of several new species, giving twenty-one total described species (seventeen species in Misumenops). Therefore, based on this later revision, there are at least three potential clades (Misumenops, Mecaphesa, a ...
See more scientific discussion on this here.
... US National Library of Medicine- National Institutes of Health (below) Vitamin C (ascorbic acid) plays important roles as an anti-oxidant and in collagen synthesis. These important roles, and the relatively large amounts of vitamin C required daily, likely explain why most vertebrate species are abl ...
... US National Library of Medicine- National Institutes of Health (below) Vitamin C (ascorbic acid) plays important roles as an anti-oxidant and in collagen synthesis. These important roles, and the relatively large amounts of vitamin C required daily, likely explain why most vertebrate species are abl ...
Individualscale variation, speciesscale differences: inference
... aggregateÕ, rather than Ôanalyse the aggregateÕ; this may not be possible, but more often, the advantages can be simply unrecognised. Ecologists have studied the demographic responses of individuals for a long time, but the species-level parameters estimated in these studies aggregate over the varia ...
... aggregateÕ, rather than Ôanalyse the aggregateÕ; this may not be possible, but more often, the advantages can be simply unrecognised. Ecologists have studied the demographic responses of individuals for a long time, but the species-level parameters estimated in these studies aggregate over the varia ...
Population dynamics of red-backed voles (Myodes) in North America
... holarctic distribution. It appears to be a post-glacial colonizer of North America, with close genetic relationships existing between North American and Far Eastern Siberian populations (Cook et al. 2004). In North America, it occurs north of latitude 60°N in the boreal forest and tundra regions (Ba ...
... holarctic distribution. It appears to be a post-glacial colonizer of North America, with close genetic relationships existing between North American and Far Eastern Siberian populations (Cook et al. 2004). In North America, it occurs north of latitude 60°N in the boreal forest and tundra regions (Ba ...
This article discusses the various hypotheses proposed to explain
... found that 5 to 8 years after the clear-cut, the species richness was increased by 30 to 35%. Haeussler pointed out that this increase in diversity came at a price: the clear-cut disturbance stripped the land of important soil organic layers causing a shift in the type of plants colonizing the regio ...
... found that 5 to 8 years after the clear-cut, the species richness was increased by 30 to 35%. Haeussler pointed out that this increase in diversity came at a price: the clear-cut disturbance stripped the land of important soil organic layers causing a shift in the type of plants colonizing the regio ...