Clonal growth and plant species abundance - Clo-Pla
... in conditions reasonably close to their natural habitats; and (2) therefore, their garden growth and reproduction provide approximations of their potential vegetative and seed reproduction in favourable (non-competitive) conditions. This approach provides a standardized way to assess directly, acros ...
... in conditions reasonably close to their natural habitats; and (2) therefore, their garden growth and reproduction provide approximations of their potential vegetative and seed reproduction in favourable (non-competitive) conditions. This approach provides a standardized way to assess directly, acros ...
Evolutionary analysis of vision genes identifies potential
... signal is integral to their evolutionary success. Giraffes are closely related to okapi, but the two species have broad range of phenotypic differences including their visual capacities. Vision studies rank giraffe’s visual acuity higher than all other artiodactyls despite sharing similar vision eco ...
... signal is integral to their evolutionary success. Giraffes are closely related to okapi, but the two species have broad range of phenotypic differences including their visual capacities. Vision studies rank giraffe’s visual acuity higher than all other artiodactyls despite sharing similar vision eco ...
Comparison of hair and DNA-based approaches in dietary analysis
... amplification of trace amounts of degraded prey DNA in predator feces (King et al. 2008). Short mtDNA amplicons (<200 base pairs) are targeted to increase amplification success of potentially degraded DNA. Many methods have been used to amplify and identify prey DNA. Sutherland (2000), was one of th ...
... amplification of trace amounts of degraded prey DNA in predator feces (King et al. 2008). Short mtDNA amplicons (<200 base pairs) are targeted to increase amplification success of potentially degraded DNA. Many methods have been used to amplify and identify prey DNA. Sutherland (2000), was one of th ...
A GENERAL HYPOTHESIS OF SPECIES DIVERSITY Many
... among competitors, and thus the maintenance of diversity. When competitive equilibrium is prevented by fluctuating conditions, population reductions, or other factors, diversity among competitors should be strongly influenced by the rate of competitive displacement. Diversity should be high for comm ...
... among competitors, and thus the maintenance of diversity. When competitive equilibrium is prevented by fluctuating conditions, population reductions, or other factors, diversity among competitors should be strongly influenced by the rate of competitive displacement. Diversity should be high for comm ...
grade 12 life sciences learner notes
... Budding: a form of asexual reproduction where new cells develop into an outgrowth on the parent plant Dioecious: means unisexual, where the male and female reproductive organs are borne on different plants Cross-pollination: pollen is transferred from one flower to another flower to enable fer ...
... Budding: a form of asexual reproduction where new cells develop into an outgrowth on the parent plant Dioecious: means unisexual, where the male and female reproductive organs are borne on different plants Cross-pollination: pollen is transferred from one flower to another flower to enable fer ...
SUCCESSION AND STABILITY
... soil depth and depth of all major soil horizons show significant increase from pioneer community 9 Soil properties (influencing the kinds of organisms that can grow) also changed during succession, i.e., ...
... soil depth and depth of all major soil horizons show significant increase from pioneer community 9 Soil properties (influencing the kinds of organisms that can grow) also changed during succession, i.e., ...
gelfand-singapore
... You are given the data available to the researchers of the genetic code by early 1960’s, just before an experimental procedure for direct analysis of amino acids encoded by specific codons (nucleotide triplets) has been developed. These data are slightly idealized; in particular, numerical data are ...
... You are given the data available to the researchers of the genetic code by early 1960’s, just before an experimental procedure for direct analysis of amino acids encoded by specific codons (nucleotide triplets) has been developed. These data are slightly idealized; in particular, numerical data are ...
Biotic factors in amphibian population declines - Amphibia
... Although the causes of many amphibian declines, such as habitxdestruction, are obvious, a large number of mysterious deaths or disappearances of amphibians have occurred over the last 30 years in areas that are relatively free of human impacts (see review by Carey 2000). Several of these declines we ...
... Although the causes of many amphibian declines, such as habitxdestruction, are obvious, a large number of mysterious deaths or disappearances of amphibians have occurred over the last 30 years in areas that are relatively free of human impacts (see review by Carey 2000). Several of these declines we ...
fulltext
... Species are embedded in communities in which they interact in complex ways with other species. Complexity increases even further because population structure is not only determined by intraspecific interactions but also by interspecific interactions that all change as individuals grow. Which stages ...
... Species are embedded in communities in which they interact in complex ways with other species. Complexity increases even further because population structure is not only determined by intraspecific interactions but also by interspecific interactions that all change as individuals grow. Which stages ...
Comparative Cryptogam Ecology: A Review of Bryophyte and
... focus on traits linked to biogeochemical cycling in the stricter sense. Although ecosystem hydrology, irradiance and climate have strong impacts on biogeochemistry (see Fig. 1, left section), we shall exclude from our discussion those traits that are principally linked to the latter factors rather t ...
... focus on traits linked to biogeochemical cycling in the stricter sense. Although ecosystem hydrology, irradiance and climate have strong impacts on biogeochemistry (see Fig. 1, left section), we shall exclude from our discussion those traits that are principally linked to the latter factors rather t ...
Diet, Morphology, and Interspecific Killing in Carnivora
... represent intervals that were aggregated for statistical analysis. ...
... represent intervals that were aggregated for statistical analysis. ...
Establishing new populations 2011 September (accessible version)
... ISBN 978-1-74287-216-5 (online) For more information contact the DSE Customer Service Centre 136 186 Disclaimer This publication may be of assistance to you but the State of Victoria and its employees do not guarantee that the publication is without flaw of any kind or is wholly appropriate for your ...
... ISBN 978-1-74287-216-5 (online) For more information contact the DSE Customer Service Centre 136 186 Disclaimer This publication may be of assistance to you but the State of Victoria and its employees do not guarantee that the publication is without flaw of any kind or is wholly appropriate for your ...
Higher Biology - Kelso High School
... A species/a population separated into two by an isolating mechanism/barrier Prevents gene exchange/gene flow/interbreeding between populations/groups Two types of isolation given (eg geographical/ecological) Third type of isolation given (eg reproductive) Effects of Mutation and Natural Selection Mu ...
... A species/a population separated into two by an isolating mechanism/barrier Prevents gene exchange/gene flow/interbreeding between populations/groups Two types of isolation given (eg geographical/ecological) Third type of isolation given (eg reproductive) Effects of Mutation and Natural Selection Mu ...
Root Dynamics of Cultivar and NonCultivar Population
... at KPBS or cultivars purchased from the USDA that were developed within the region. The three cultivars used in this experiment were A. gerardii “Kaw,” S. nutans “Osage,” and S. scoparium “Camper.” All seeds were hand broadcast and raked into the soil in the winter of 2005 to ensure adequate time fo ...
... at KPBS or cultivars purchased from the USDA that were developed within the region. The three cultivars used in this experiment were A. gerardii “Kaw,” S. nutans “Osage,” and S. scoparium “Camper.” All seeds were hand broadcast and raked into the soil in the winter of 2005 to ensure adequate time fo ...
diel and seasonal variation in species composition and abundance
... (Site 1 night:day abundance = 3.15; Site 2 night:day = 2.83). In terms of species composition, the two Processa species were noticeably absent from day samples. The hippolytid Lysmata moorei and the palaemonid Brachycarpus biunguiculatus were seldom found (Table 1) but, when collected, occurred only ...
... (Site 1 night:day abundance = 3.15; Site 2 night:day = 2.83). In terms of species composition, the two Processa species were noticeably absent from day samples. The hippolytid Lysmata moorei and the palaemonid Brachycarpus biunguiculatus were seldom found (Table 1) but, when collected, occurred only ...
Is the 10-Year Wildlife Cycle Induced by a Lunar Cycle?
... at latitude 50?N, 1920-1973. LunardatafromAmerican Ephemeris and Nautical Almanac;peaks of 10year cycle from Table 1. lieved that periodic declines in ruffed grouse are caused by increased predation due to a "predator shift" as hares decrease. The "predator shift" hypothesis has been challenged (Hof ...
... at latitude 50?N, 1920-1973. LunardatafromAmerican Ephemeris and Nautical Almanac;peaks of 10year cycle from Table 1. lieved that periodic declines in ruffed grouse are caused by increased predation due to a "predator shift" as hares decrease. The "predator shift" hypothesis has been challenged (Hof ...
How community ecology links natural mortality, growth, and
... from basic physiological principles and empirically validated by Kooijman (2000, Chapter 8). The relation may be invalid for large fish, which have elevated metabolism because of inertial homeothermia, e.g. scombroids or white sharks. Second, we derived a relation between expected mortality and indi ...
... from basic physiological principles and empirically validated by Kooijman (2000, Chapter 8). The relation may be invalid for large fish, which have elevated metabolism because of inertial homeothermia, e.g. scombroids or white sharks. Second, we derived a relation between expected mortality and indi ...
Using ecological restoration to constrain biological invasion
... negatively correlated with A. cristatum cover (Fig. 3a) but did not vary significantly with planted grass cover (Fig. 3b). Species richness of naturally establishing native species was negatively correlated with A. cristatum cover (Fig. 3c) and with planted grass cover (Fig. 3d). However, the regres ...
... negatively correlated with A. cristatum cover (Fig. 3a) but did not vary significantly with planted grass cover (Fig. 3b). Species richness of naturally establishing native species was negatively correlated with A. cristatum cover (Fig. 3c) and with planted grass cover (Fig. 3d). However, the regres ...
Biological Stoichiometry: A Chemical Bridge between Ecosystem
... field of “community genetics” (Whitham et al. 2003; Wilson and Swennson 2003), I suggest that the intellectual landscape is now shifting away from a tense stand-off between ecosystem and evolutionary perspectives. Ecosystems are no longer seen as distinct “quasi-organismal” entities but instead are ...
... field of “community genetics” (Whitham et al. 2003; Wilson and Swennson 2003), I suggest that the intellectual landscape is now shifting away from a tense stand-off between ecosystem and evolutionary perspectives. Ecosystems are no longer seen as distinct “quasi-organismal” entities but instead are ...
Maternal adjustment of offspring provisioning and the consequences
... and reproduction have to be shared with neighbors in a patch. Yet, surprisingly, there are very few studies of the effects of competition on offspring provisioning. Plant species modify seed provisioning in response to competition in different ways. Some species manipulate the size of their offsprin ...
... and reproduction have to be shared with neighbors in a patch. Yet, surprisingly, there are very few studies of the effects of competition on offspring provisioning. Plant species modify seed provisioning in response to competition in different ways. Some species manipulate the size of their offsprin ...
You share your habitat with wolves and they are your predator. 5
... predators, an abundance of food, a stable ecosystem, etc) then it will (increase, decrease, stay the same, etc) because (organisms need food to survive, organisms need to mate to carry on the population, etc.) ***Units are intentionally left off the Deer Population A & B graphs so that students can ...
... predators, an abundance of food, a stable ecosystem, etc) then it will (increase, decrease, stay the same, etc) because (organisms need food to survive, organisms need to mate to carry on the population, etc.) ***Units are intentionally left off the Deer Population A & B graphs so that students can ...
Is Taxonomic Diversity Enough? The Role of Phylogenetic
... species observed in each plot. This trait matrix was then analyzed through a principal component analysis followed be a hierarchical clustering technique to create pairings between plots. The results of this cluster analysis can be seen in Figure 1. The two plots with the greatest similarity were gr ...
... species observed in each plot. This trait matrix was then analyzed through a principal component analysis followed be a hierarchical clustering technique to create pairings between plots. The results of this cluster analysis can be seen in Figure 1. The two plots with the greatest similarity were gr ...
Understanding Our Environment
... Abundance -Total number of organisms in a community. Diversity - Number of different species, ecological niches, or genetic variation. Abundance of a particular species often inversely related to community diversity. As general rule, diversity decreases and abundance within species increases whe ...
... Abundance -Total number of organisms in a community. Diversity - Number of different species, ecological niches, or genetic variation. Abundance of a particular species often inversely related to community diversity. As general rule, diversity decreases and abundance within species increases whe ...
Sympatric speciation is reinforced by predation, parasite load
... Sympatric speciation, the divergence of one lineage into two or more lineages within one geographic range, is often driven by disruptive selection on niche utilization. While niche specialization is found in sympatrically speciated groups, it is often reinforced by other strong selective pressure. T ...
... Sympatric speciation, the divergence of one lineage into two or more lineages within one geographic range, is often driven by disruptive selection on niche utilization. While niche specialization is found in sympatrically speciated groups, it is often reinforced by other strong selective pressure. T ...