For several decades now, amphibian species worldwide have been in decline. A significantproportion of the decline seems to be du
e to the spread of the chytrid fungus,Batrachochytrium dendrobatidis (Bd). Chytrid sporangia reside within the epidermal cellsof infected animals, animals that consequently show areas of sloughed skin. They can also belethargic, which is expressed through failure to hide and failure to flee. The infection cycletypically takes four to five days, at the end of which zoospores are released from sporangiainto the environment. In some amphibian species, mortality rates approach 100%; otherspecies seem able to survive the infection.If Bd cannot grow properly at temperatures above 28°C (82°F), then, assuming theamphibians can survive, in which time or place should the chytrid infection proceed mostrapidly?1. cooler months2. warmer months3. lower altitudes4. higher altitudes
Infection with these microorganisms would be even more noticeable in cold stages where temperatures are less than 28 degrees, since in this way the microorganisms would not survive in the external environment and would less infect amphibians.
Explanation:
Also keep in mind that water at different latitudes may have a greater or less warmth (that is the reason why in some areas it is said that its boiling point is not 100 degrees Celsius but around 83).
The warmer the water, the more amphibian mortality because there will be more infection since the microorganism manages to survive in an environment suitable for its needs.
