Question

В одній кладці самки дафній є близько 60 яєць,через 20 днів вилуплюються молоді дафнії,які незабаром здатні також відкладати яйця.Скільки дафній може зявитися від однієї самки за 3 літні місяці?

Answer 1

У трьох літніх місяцях 92 дні.

92/20=4,6 кладок => приблизно 4 кладки

4*60=240 дафній (якщо 4 кладки і вижили всі 60)

Значить, 240 дафній 

Answer 2

Daphnia Reproduction and Population Growth

Daphnia, commonly known as water fleas, are small, planktonic crustaceans found in freshwater environments. They are known for their rapid reproduction and population growth under favorable conditions.

Reproduction Cycle: - In one clutch, a female Daphnia can produce around 60 eggs, which hatch into young Daphnia after about 20 days. - The young Daphnia reach maturity and are capable of laying eggs themselves shortly after hatching.

Population Growth Calculation: To calculate the potential population growth of Daphnia from a single female over three summer months, we can consider the following factors: 1. Each female Daphnia can produce around 60 eggs in one clutch. 2. The time for the eggs to hatch and the young Daphnia to mature is approximately 20 days.

Calculation: - Let's assume that the reproduction cycle of Daphnia continues without interruption for three months, which is approximately 90 days. - In the first 20 days, the initial clutch of 60 eggs hatches into young Daphnia. - These young Daphnia mature and start laying eggs within the next 20 days. - The eggs from the first clutch hatch, and the second generation of Daphnia is produced. - This process continues for the remaining days.

Potential Population Growth: - In the first 20 days, 60 young Daphnia are produced from the initial clutch. - In the next 20 days, each of these 60 Daphnia can potentially produce another 60 Daphnia, resulting in 60 * 60 = 3600 Daphnia. - This process continues for the remaining days, leading to a significant population growth.

Conclusion: Given the rapid reproduction and population growth of Daphnia, it is feasible for a substantial number of Daphnia to emerge from a single female over the course of three summer months.

Note: The specific population growth may vary based on environmental factors and the availability of resources.