any process or phenomenon that is caused by living organisms.
the theoretical maximum number of individuals in a population that can be supported by a defined set of conditions in an environment.
a geographic gradient in the frequency of a gene.
belonging to the same family.
members of the same genus.
referring to members of the same genus.
referring to members of the same species.
plants and plant-like organisms that do not reproduce with seeds and do not produce flowers, such as ferns, mosses, fungi, and algae.
refers to any attribute or process relating to a population.
deterministic growth rate (λ):
a growth rate that has only one outcome as defined by the parameters or conditions under which the population occurs.
a state of arrested growth or development, usually applied only to insects.
flowers that are functionally male first, then develop female structures.
producing male and female structures on two separate plants within the same species.
in plants, the possession of male and female structures on separate individuals.
possession of two full sets of genes and two sets of chromosomes; one set from the mother, one from the father.
double stranded ribonucleic acid.
feeding on the outside of the host.
feeding on the internal organs or at least within the body of the host.
fungi that reside within plant cells, or plants that live within other plants.
a plant that grows on another plant nonparasitically, or grows on an object.
permanent self-maintenance of a population without additional members arriving through immigration.
competition in which resources obtained by one organism, population, or species results in a lowered resource availability to another organism, population, or species.
the collective assembly of all plants (floras) or animals (faunas) within a prescribed area and within a prescribed taxonomic group (for example all insect species in the United States).
an organism which gives rise to a new populations.
changes in allelic frequency due to sampling error; that is, changes in frequency that result because the genes appearing in offspring are not