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Allee Effects, Immigration, and the Evolution of Species
Allee Effects, Immigration, and the Evolution of Species

... requires consideration of the stochastic processes of mutation, drift, and demographic stochasticity. Gomulkiewicz et al. (1999) examined in detail the interplay of selection and these stochastic processes for the case of a single diploid locus, assuming negative density dependence, and observed tha ...
Allee Effects, Immigration, and the Evolution of Species` Niches
Allee Effects, Immigration, and the Evolution of Species` Niches

SC.912.L.17.5
SC.912.L.17.5

... SC.912.L.17.5#: ANALYZE HOW POPULATION SIZE IS DETERMINED BY BIRTHS, DEATHS, IMMIGRATION, EMIGRATION, AND LIMITING FACTORS (BIOTIC AND ABIOTIC) THAT DETERMINE CARRYING CAPACITY. LIMITING FACTORS? CARRYING CAPACITY? CARRYING CAPACITY IS THE NUMBER OF INDIVIDUALS OF A SPECIES THAT AN ENVIRONMENT CAN S ...
1

Immigration reduction in the United States

Immigration reduction refers to a movement in the United States that advocates a reduction in the amount of immigration allowed into the country. Steps advocated for reducing the numbers of immigrants include advocating stronger action to prevent illegal entry and illegal immigration, and reductions in non-immigrant temporary work visas (such as H-1B and L-1). Some advocate a tightening of the requirements for legal immigration requirements to reduce total numbers, or move the proportions of legal immigrants away from those on family reunification programs to skills-based criteria. What separates it from others who want immigration reform is that reductionists see immigration- or one of its forms- as being a significant source of social, economic, and environmental problems, and wish to cut current immigration levels.Many immigration reformists support continued legal immigration, only opposing illegal immigration. Some immigration reductionists want legal immigration to be set at a percentage of current levels until fewer adverse effects are created by legal immigration.The related terminology ""self-deportation"" or ""to self-deport"" refers to the viewpoint that social policy that illegal immigration to the U.S. can be reduced by causing residents to leave the U.S. on their own, thus creating a reduction.
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