Question

Одна мышь съедает 4 кг растительной пищи.Рыси могут съесть 2% популяции мышей (в среднем 800 грызунов за год ) какое количество рысей может выжить в сообществе с фитомассой 8000т ,если мыши изпользуют 2% фитомассы и являются основной пищей для рыси

Answer 1

8000т.– 100%
Xт = 2 %
X = 80000кг
80000 – 100%
X – 2%
X = 3200:800=4
Ответ: 4 рыси

Answer 2

Calculation of the Number of Lynxes that can Survive in a Community with a Biomass of 8000 tons and Mice as their Main Food Source

To calculate the number of lynxes that can survive in a community with a biomass of 8000 tons and mice as their main food source, we need to consider the following information:

- One mouse consumes 4 kg of plant food. - Lynxes can consume 2% of the mouse population, which is an average of 800 mice per year.

First, let's calculate the total amount of plant food consumed by the mice in the community:

Total plant food consumed by mice = 2% of the community biomass

The community biomass is given as 8000 tons. To calculate 2% of the biomass, we can multiply it by 0.02:

Total plant food consumed by mice = 8000 tons * 0.02 = 160 tons

Next, let's calculate the number of mice in the community:

Number of mice = Total plant food consumed by mice / Food consumption per mouse

The food consumption per mouse is given as 4 kg. To calculate the number of mice, we need to convert the total plant food consumed by mice from tons to kilograms:

Total plant food consumed by mice = 160 tons * 1000 kg/ton = 160,000 kg

Number of mice = 160,000 kg / 4 kg = 40,000 mice

Finally, let's calculate the number of lynxes that can survive in the community:

Number of lynxes = 2% of the mouse population

Number of lynxes = 2% of 40,000 mice = 0.02 * 40,000 = 800 lynxes

Therefore, in a community with a biomass of 8000 tons and mice as their main food source, approximately 800 lynxes can survive.

Please note that the calculations provided are based on the information given and may not account for other factors that could affect the population dynamics of lynxes and mice in the community.