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A number of biotic and abiotic factors may affect host choice in chironomids. There is evidence that this choice is pressured by hydrological factors. A higher number of chironomids associating phoretically with Ephemeroptera during a rainy season. In the dry season, host choices seemed to diversify a great deal, with many hosts only being ...
The abiotic factors the Atlantic silverside needs to survive varies for populations of fish based on their geographical location. They can tolerate an average temperature of 70 °F (21 °C), a salt content of the water ranging from 0 to 37ppt, and a well-mixed body of water to prevent hypoxic conditions. Individuals have been found in ...
Humans can make or change abiotic factors in a species' environment. For instance, fertilizers can affect a snail's habitat, or the greenhouse gases which humans utilize can change marine pH levels. Abiotic components include physical conditions and non-living resources that affect living organisms in terms of growth, maintenance, and ...
Bioaerosols include fungi, bacteria, viruses, and pollen.Their concentrations are greatest in the planetary boundary layer (PBL) and decrease with altitude. Survival rate of bioaerosols depends on a number of biotic and abiotic factors which include climatic conditions, ultraviolet (UV) light, temperature and humidity, as well as resources present within dust or clouds.
It differs from most other hypotheses in not postulating an upper limit to species richness set by various abiotic and biotic factors, i.e., it is a nonequilibrium hypothesis assuming a largely non-saturated niche space. It does accept that many other factors may play a role in causing latitudinal gradients in species richness as well.
Watch this little boy meet the woman who saved his life by donating part of her liver.
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When on land, the family is based in Concarneau, a small coastal town in Brittany, northwestern France. When at sea, the 18-meter-long yacht becomes their home, shared with around 10 other people ...