2 edition of Inter- and intrapopulational variability of the common dandelion (Taraxacum officinale web.) in Washington found in the catalog.
Inter- and intrapopulational variability of the common dandelion (Taraxacum officinale web.) in Washington
John Andrew Kennison
1978 in Bellingham .
Written in English
|Statement||by John Andrew Kennison.|
|The Physical Object|
|Pagination||x, 41 leaves :|
|Number of Pages||41|
11 | Interactions Between Populations Direct Interactions The traditional approach to population interactions has been to consider just the direct pairwise interactions. In this simplistic view of things, two populations may or may not affect each other; if they do, the inﬂuence may be beneﬁcial or Size: KB. mancia morfológica) y dentro de formas morfológicas (inter- pretados como variación para la dormancia fisiológica). La variación genética respecto a dormancia de semilla puede ser tan grande dentro de una poblacion como entre poblaciones. JOURNAL OF RANGE MANAGEMENT 52(6), November
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Intrapopulational variation in the standard metabolic rate of insects: repeatability, thermal dependence and sensitivity (Q10) of oxygen consumption in a cricket. Apomixis is the ability of plants to produce asexual seeds, which are clones of the mother plant. The phenomenon of apomixis is tightly linked to ploidy, where diploids lack apomixis and reproduce sexually, while higher ploidy levels can exhibit apomixis.
Taraxacum species (dandelions) commonly exhibit apomixis; however, only limited studies have evaluated genome size variation of Cited by: 5. Inter- and intrapopulation variation in the response of tree seedlings to drought: physiological adjustments based on geographical origin, water supply and species.
the natural seedling establishment is particularly affected by drought patterns and climatic variability. arid lands, and, along with white mesquite (Prosopis alba) and Cited by: 1. common dandelion was originally introduced to the Americas via the Alaskan ice bridge following the most recent ice age (Richards ).
It is also presumed that early European settlers reintroduced common dandelion as an ornamental used to seed the roofs of sod houses to make them stand out on the prairie (Solbrig ; Stubbendieck et al.
Inter- and intraspecies variability in stable isotope ratio values of archaeological freshwater fish remains from Switzerland (11th–19th centuries AD). Spring and summer often find homeowners out in their yards, busily attempting to control the onslaught of dandelions in a quest for green, weed-free lawns.
Responding to. Kennison JA, Inter- and intrapopulational variability of the common dandelion (Taraxacum officinale Web.) in Washington. MSc Thesis. Bellingham WA, USA: Western Washington University. Khan J, The raw ingredients.
Seasons (Federation of Ontario Naturalists), 41 (2) Khan MI, Regeneration in relation to root size in Taraxacum. The common dandelion Taraxacum officinale es a particularly clear example of differing distributions: diploid sexuals are restricted to southern and central Europe, while triploid asexuals occur across Europe.
To get a better understanding of the factors underlying this pattern, we studied the distribution and demography of sexuals Cited by: dandelion, has been used in folk medicine in the treatment of myriad pathological effects8.
Several flavonoids including caffeic acid, chlorogenic acid, luteolin, and luteolin 7-glucoside have been isolated from the dandelion9. In Traditional Chinese medicine, dandelion is also acclaimed as a nontoxic herb with.
According to the principle of common descent, all species -living and extinct- are descended from ancient common ancestors. adaptation. A heritable characteristic that increases an organisms ability to survive and reproduce in a particular environment. fitness. The variability exhibited by the H-fib intron contrasts with the high level of conservation in the core promoter and exons.
The sequences of the core promoter (−37 to +10) and first exon available in the literature for p50, Gmand and C are completely conserved in the three organisms (Kusuda et al.,Zhou et al., ; accession Cited by: 8.
Here, we test for this pattern in the common dandelion (Taraxacum officinale sensu lato, Asteraceae), a species with well-established geographic parthenogenesis [37, 38, 39], by linking dandelion sex-asex variation to geographic variation in the occurrence of several Cited by: Start studying Biology Chapter Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Germination characteristics and intrapopulation variation in carob (Ceratonia siliqua L.) seeds The aims of this work were to study the germination characteristics (under controlled conditions of light and temperature and using different pretreatments for promoting germination) and.
Background and Aims Intra-population variation in seed dormancy is an advantage for population persistence in unpredictable environments. The important role played by physically dormant species in these habitats makes understanding the level of variation in their dormancy a key ecological by: Variability, Heritability and Genetic Advance for Yield and Yield Contributing Characters in Holostemma ada-kodien – A Vulnerable Medicinal Plant Siddharuda Tuppad1*, G.
Raviraja Shetty1, M.S. Sandesh1, Basavaraj Hadapad1, K. Souravi2 and P.E. Rajasekharan2 1Department of Plantation, Spices, Medicinal and Aromatic crops, College of Horticulture. Variability in phenotypic traits in core and peripheral populations of wild barley, Hordeum spontaneum Koch.
- Hereditas Lund, Sweden. ISSN Received November 6, Accepted Janu Populations of wild barley, H. spontaneum Koch., were collected in two countries, Israel and Turkmenistan, in.
The effect SOME PARAMETERS OF POPULATION VARIABILITY of the combined directional and stabilizing selection was a gradual change in mean and decrease in variance, but it can be seen from Fig.
5 that the population remained highly variable into the F19 by: The taxonomy from the rank of class and below is based upon currently published taxonomic opinion. For a complete taxonomy, refer to The Taxonomic Outline of Bacteria and Archaea, Release The Impact of Different Habitat Conditions on the Variability of Wild Populations of a Medicinal Plant Betonica o fficinalis L.
Kinga Kostrakiewicz-Gierałt* Jagiellonian University, Institute of Botany, Department of Plant Ecology, 46 Lubicz, Kraków, POLAND *Corresponding author: [email protected] Abstract.
Plants are. This time line will cover the history of the ideas of heritability and natural selection, including scientists and key discoveries in related fields.
The genetic diversity of a species can be divided into inter-population diversity and intra-population diversity, and further into the diversity within an individual expressed by differences between alleles in the two chromosomes of diploid organisms (degree of individual heterozygosity).
One hundred and forty-four samples of Chishao and Baishao, which represented six species of Paeonia L. were evaluated for their genetic variation, genetic differentiation and phylogenetic relationship, based on the nuclear ribosomal DNA internal transcribed spacer (ITS) region.
Samples from representative of the population were then used to do a cultivation comparison experiment, and then to Cited by: 6. Ecological Differentiation among Genotypes of Dandelions (Taraxacum officinale) Mark Vellend, Emily B.
Drummond, and Jennifer L. Muir* We tested for ecological differences among apomictic dandelion genotypes in Vancouver, British Columbia, Canada, in.
The common bean is a food with high mineral content. Of the various types of beans cultivated in Brazil, carioca type beans are the most consumed.
The aim of this study was to identify promising common bean populations with an emphasis toward the selection of carioca type bean lines with high calcium content.
We also aimed toAuthor: S.B. Fernandes, A.F.B. Abreu, M.A.P. Ramalho. Ecological and historical factors affecting distribution pattern and richness of endemic plant species: the case of the Maritime and Ligurian Alps hotspot Gabriele Casazza 1, Elena Zappa 2, Mauro G.
Mariotti 1, Frédéric Médail 3 and Luigi Minuto 1*. Edward B. Radcliffe, Professor Emeritus Department of Entomology, University of Minnesota.
Background Thomas Malthus. The first significant contribution to the theory of population ecology was that of Thomas Malthus, an English clergyman, who in published his Essay on the Principle of s introduced the concept that at some point in time an expanding population must.
Part (c) Critical Point (0,0) The linear system that approximates the non-linear system near the critical point (0,0) is. Because the coefficient matrix is diagonal, we can see that the eigenvalues are &xi 1 = and &xi 2 = The eigenvectors are easily shown to be v 1 = [1;0] and v 2 =[0;1].
Because both eigenvalues are real and positive, the origin is an unstable node. Phenotypic Variability Within and Between Two and Six-row Types: A large level of phenotypic variation was observed for most of the measured traits (Table 1).
Hence plant height varied from cm to cm in both row type barley lines. Above ground biomass ranged. Evaluation of Simple Methods for Estimating Broad-Sense Heritability in Stands of Randomly Planted Genotypes S. Smith,* R. Kuehl, I. Ray, R. Hui, and D.
Soleri ABSTRACT hande, ; Nyquist, ). This approach is based Inexpensive estimates of broad-sense heritability (BSH) may be on the assumption that both random and systematicFile Size: KB.
Form a hypothesis about how a population of dandelion plants might be affected by a population of rabbits - 5 points m0scharpZe1brana Asked Form a hypothesis about how a population of dandelion plants might be affected by a population of rabbits if the rabbit's population increase, then dandelion plants will decrease.
potential to interbreed in nature and produce viable, fertile offspring Cannot be applied to Asexual organisms Fossils Organisms about which little is known regarding their reproduction Limitations of the BSC Very closely related species who have been isolated and then come back into contact to create a hybrid EX: grizzly bear and polar bear As climate change going on, they’re interacting.
The Language of Activism home ©, Jim Nollman library From the Interspecies Newsletter A pine needle fell. The eagle saw it The deer heard it The bear smelled it. Dreaming of brains in a cage Many animal species communicate although correspondence is generally limited to instinctual signals expressing danger, territory, and courtship.
Parasite heterogeneity and within-host competition are thought to be important factors influencing the dynamics of host-parasite relationships. Yet, while there have been many theoretical investigations of how these factors may act, empirical data is more limited.
We investigated the effects of parasite density and heterogeneity on parasite virulence and fitness using four strains of the Cited by: Loss of Keystone Species Keystone species are important to their evironment.
Without the keystone species, an environment can see an increase or decrease within another species Example: Sea otters eat sea urchins which eat kelp. If there are not many sea otters there is an. Feedback One or more of your selections is incorrect.
Question 3 Points: 10 out of 10 Which of the following is a direct interspecific interaction. Individual lions compete with each other for food and mates. Through their effects on antelope behavior, lions increase the survival of some plant species. Hormones circulating within a lion affect her levels of hunger and motivation to hunt.
Testable Questions Consider each topic below, then: (1) write a testable question related to the topic using the formula: How does _____ affect _____. (2) identify the independent and dependent variable. (3) compose a hypothesis related to your question using the formula: IF the independent File Size: KB.
Change in the structure of a molecular system may result in a change of the function of the system. [See also 3.D.3] b. The shape of enzymes, active sites and interaction with specific molecules are essential for basic functioning of the enzyme.
Genetic differentiation in natural populations is driven by geographic distance and by ecological or physical features within and between natural habitats that reduce migration. The primary population structure in wild barley differentiates populations east and west of the Zagros Mountains.
Genetic differentiation between eastern and western Cited by: primary center of diversity, and one in the Caribbean, where some introgression took place with G.
barbadense [2–5]. In these two regions, G. hirsutum exhibits a diverse array of. population and damage management (Figure ). This is true because our nlain areas of focus are rodent population management, habitat management, and people management (e.g. ~itrner.
et al., ). Biology and dynamics of the rodent populations Over a third of all mammalian species in the world are rodents.Biologists have several different ways to define species. 1. According to the _____ species concept, a species is a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring.
The separation between species is maintained by _____ isolation, which prevents gene flow between species.AbstractFor two competing species, intraspecific competition must exceed interspecific competition for coexistence. To generalize this well-known criterion to multiple competing species, one must take into account both the distribution of interaction strengths and community structure.
Here we derive a multispecies generalization of the two-species rule in the context of symmetric Lotka Cited by: