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av TJ Mullin · 2014 — 1. OPSEL 1.0: a computer program for optimal selection in forest tree breeding. Preface Running the examples provided with OPSEL . Björheden, R. 2013. Tree species trial with emphasis on biomass production.

R-selected species usually don't care for offspring, whereas k-selected species such as orangutans will provide care (orangutan offspring live with their mothers for up to eight years). Examples include rabbits, bacteria, salmon, plants such as weeds and grasses, etc. Many insects are r-selected. For example, ants can be considered r-selected.

Typically, r- selected species exploit empty niches, and produce many offspring, each of whom Examples of r-selected species include pest organisms, such as rodents, insects, and weeds.

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Typical examples of r-species are mice, rabbits, weeds and bacteria, which have a lot of offspring, but a short life expectancy. 2008-08-27 · r-selected species produce lots of offspring, many of which will die. Apple trees produce thousands of seeds and house flies and frogs both lay hundreds of eggs. Giraffes, however, produce one (possibly two) calves and are therefore k-selected.

Based on the contradictory characteristics of both of these examples, areas of occasional disturbance allow both r and K species to benefit by residing in the same area. The ecological effect on species relationships is therefore supported by the intermediate disturbance hypothesis. K - Selected r-selected Size Generally larger as species (terrestrial mammals). Generally small . Parenting. LOTS of parental care time, energy and resources in child rearing .
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Using the checklist here, you can predict which species are R-selected.
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US5463081.pdf

The “strategic intent” is to flood the habitat with progeny so that, regardless of predation or mortality, at least some of the progeny will survive to reproduce. Organisms that are r-selected have short life spans, are generally small, quick to mature and waste a lot of energy.

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US5463081.pdf

Organisms that exhibit r selection range from bacteria and diatoms, to insects and grasses, various semelparous cephalopods, small mammals, particularly rodents. Biology Science The “strategic intent” is to flood the habitat with progeny so that, regardless of predation or mortality, at least some of the progeny will survive to reproduce. Organisms that are r-selected have short life spans, are generally small, quick to mature and waste a lot of energy. Typical examples of r-strategists are. salmon ; corals ; insects 2008-08-27 2021-02-23 Typical examples of r-species are mice, rabbits, weeds and bacteria, which have a lot of offspring, but a short life expectancy. Examples of organisms undergoing K-selection are tortoises, elephants, people, and sequoia trees: their offspring are few but long-lived. 2013-04-25 Examples of R-species: Include animals like bacteria, viruses, mice, fishes, insects like bees, cockroaches, etc., and plants like weeds, dandelions, etc.