Some organisms don' t like to be crowded, so the density can affect the population size. E7.2 Know that species with low reproductive effort, long life, and few offspring are more common in stable communities (K-selected). E7.1 Know that species with high reproductive effort, short life, and many offspring are more common in early succession or disturbed communities (r-selected). Compare this reproduction strategy to r-selected species, (AKA big bang reproduction and opportunistic species). Dynamics leading to the alternatives of persistence and extinction influence applied ecological problems from conservation of threatened species to rapid spatial spread of invasive species and emerging diseases. K-selected species tend to live in stable environments. Consequently, this population grows fast, reproduces quickly, and dies quickly. R-Selected Species They are populations that experience rapid growth of the J-curve variety. Korean Red List of Threatened Species Second Edition 2014. r-selected species • Weedy species found in environments where disturbances are common • Disturbance lowers population denisty • Between disturbances the populations grow exponentially K-Selected Species • K-selected species live in stable environments. Considering the aforementioned traits, you should be able to predict which species are K-selected. Characteristics of K-selected Species - University of Oregon Species have evolved specific life history strategies (k and r-selected) to ensure the growth and evolution of their species. Artificial selection is the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations. They also tend to have long life spans. K-selected species possess relatively stable populations fluctuating near the carrying capacity of the environment. The offspring produced require extensive postnatal care until they have sufficiently matured. It is a relatively well-studied genus of fungus, but there are countless species not yet described, and there is still much to learn about the best-known of the species.
K-selected are those that reproduce very slowly and are slow to mature; humans are a k-selected species. I am interested in the ecology of population extinction, species invasions and species coexistence. The complete taxonomic breakdown of all proteins with PKS_KR domain is also avaliable. r-selected species.
To determine the relative ion size in isoelectronic species follow the following steps :- *Anions have the largest size in isoelectronic species. They produce few offspring, that develop slowly and require a lot of care. While the more charismatic creatures, such as bears and whales, may be the better known examples of CITES species, the most numerous groups include many less popularized plants and animals, such as aloes, corals, mussels and frogs. Most species of this genus cause plant diseases, and form leaf spots. These species are characterized by having only a few offspring but investing high amounts of parental care. Animals that are r-selected do not give long-term parental care and the offspring are relatively mature and self-sufficient at birth.. (because the negative charge on them tends to increase their size so that electrons are as far from each other as possible) . They are very limited in resourses therefore they are a very competitive species. Humans are examples of a k-selected species. NIBR National Institute of Biological Resources Publisher : National Institute of Biological Resources Editor in … It can be seen that all the above ions are isoelectronic species. This strategy is often employed in unpredictable or changing environments.
Click on the protein counts, or double click on taxonomic names to display all proteins containing PKS_KR domain in the selected …