🗊 Презентация Area Ecosystem Population

Категория: Математика
Нажмите для полного просмотра!
Area Ecosystem Population, слайд №1 Area Ecosystem Population, слайд №2 Area Ecosystem Population, слайд №3 Area Ecosystem Population, слайд №4 Area Ecosystem Population, слайд №5 Area Ecosystem Population, слайд №6 Area Ecosystem Population, слайд №7 Area Ecosystem Population, слайд №8 Area Ecosystem Population, слайд №9 Area Ecosystem Population, слайд №10 Area Ecosystem Population, слайд №11 Area Ecosystem Population, слайд №12 Area Ecosystem Population, слайд №13 Area Ecosystem Population, слайд №14 Area Ecosystem Population, слайд №15 Area Ecosystem Population, слайд №16 Area Ecosystem Population, слайд №17 Area Ecosystem Population, слайд №18 Area Ecosystem Population, слайд №19 Area Ecosystem Population, слайд №20 Area Ecosystem Population, слайд №21 Area Ecosystem Population, слайд №22 Area Ecosystem Population, слайд №23 Area Ecosystem Population, слайд №24 Area Ecosystem Population, слайд №25 Area Ecosystem Population, слайд №26 Area Ecosystem Population, слайд №27 Area Ecosystem Population, слайд №28 Area Ecosystem Population, слайд №29 Area Ecosystem Population, слайд №30 Area Ecosystem Population, слайд №31 Area Ecosystem Population, слайд №32 Area Ecosystem Population, слайд №33
Скачать
Вы можете ознакомиться и скачать презентацию на тему Area Ecosystem Population. Доклад-сообщение содержит 33 слайдов. Презентации для любого класса можно скачать бесплатно. Если материал и наш сайт презентаций Mypresentation Вам понравились – поделитесь им с друзьями с помощью социальных кнопок и добавьте в закладки в своем браузере.

Слайды и текст этой презентации

Слайд 1


Test your knowledge 1. Define terms Area - Ecosystem - Population –
Описание слайда:
Test your knowledge 1. Define terms Area - Ecosystem - Population –

Слайд 2


You are a scientist in the field of ecology and you were given the task to determine the population of squirrels in a pine forest. How do you do that?
Описание слайда:
You are a scientist in the field of ecology and you were given the task to determine the population of squirrels in a pine forest. How do you do that?

Слайд 3


Data collection and analysis Methods of mathematical statistics The application of these methods makes it possible to get an objective view on a...
Описание слайда:
Data collection and analysis Methods of mathematical statistics The application of these methods makes it possible to get an objective view on a particular (определённая) population

Слайд 4


Types of statistical test T-test (Student’s T-test)
Описание слайда:
Types of statistical test T-test (Student’s T-test)

Слайд 5


T-test 2 test groups Determining the differences between the two groups One or more samples per group are made
Описание слайда:
T-test 2 test groups Determining the differences between the two groups One or more samples per group are made

Слайд 6


Example of research question Which species of pine (Scotch or Kulunda) are more common in Kazakhstan?
Описание слайда:
Example of research question Which species of pine (Scotch or Kulunda) are more common in Kazakhstan?

Слайд 7


Examples of Hypotheses Research Hypotheses In Kazakhstan the Kulunda pine is more common Statistical hypotheses Null hypotheses (Ho) Ho – there is no...
Описание слайда:
Examples of Hypotheses Research Hypotheses In Kazakhstan the Kulunda pine is more common Statistical hypotheses Null hypotheses (Ho) Ho – there is no difference in the prevalence of Scots pine or Kulunda pine Alternate hypotheses Ha – there IS a difference in the predominance of Scots pine or Kulunda pine

Слайд 8


Methods of ecological research Laboratory method Experimental and experimental method Field method The objects of field research can be living...
Описание слайда:
Methods of ecological research Laboratory method Experimental and experimental method Field method The objects of field research can be living organisms, populations, species and their natural communities

Слайд 9


Objectives of field researches Determine (определить) the distribution (распространение), abundance (численность) and quality of the species,...
Описание слайда:
Objectives of field researches Determine (определить) the distribution (распространение), abundance (численность) and quality of the species, population, biocenosis, ecosystem of lakes, rivers and other objects the influence of abiotic, biotic, anthropogenic factors on organisms

Слайд 10


Methods of field research Lay out and describe a sample area (закладка и описание пробных площадей (ключевых участков)) The sizes of sample areas...
Описание слайда:
Methods of field research Lay out and describe a sample area (закладка и описание пробных площадей (ключевых участков)) The sizes of sample areas (squares) for groups of plants are 1, 10, 100 m², for forests - an area of 100 - 5000 m² The main indicator of the research is the quantitative registration of organisms

Слайд 11


Area Ecosystem Population, слайд №11
Описание слайда:

Слайд 12


Example Question: Which part of the school garden has more dandelions? Research hypothesis: Null hypothesis: Alternate hypothesis:
Описание слайда:
Example Question: Which part of the school garden has more dandelions? Research hypothesis: Null hypothesis: Alternate hypothesis:

Слайд 13


Method of research (squares method or key sites) метод квадратов или ключевых участков Select the sample area. Lay out a square grid of known size....
Описание слайда:
Method of research (squares method or key sites) метод квадратов или ключевых участков Select the sample area. Lay out a square grid of known size. Count the dandelions in each grid. Repeat this 5 times for both the locations. Tabulate the data. Analyze the data.

Слайд 14


Data collection
Описание слайда:
Data collection

Слайд 15


Step 1 Calculate the mean value
Описание слайда:
Step 1 Calculate the mean value

Слайд 16


Area Ecosystem Population, слайд №16
Описание слайда:

Слайд 17


Step 2 Step 2 Calculate the deviation from mean by subtracting the mean from the value of X for both the samples Рассчитать отклонение от среднего...
Описание слайда:
Step 2 Step 2 Calculate the deviation from mean by subtracting the mean from the value of X for both the samples Рассчитать отклонение от среднего значения путем вычитания среднего по величине X для обоих образцов.

Слайд 18


Area Ecosystem Population, слайд №18
Описание слайда:

Слайд 19


Step 3 Square the deviation from the mean for both the samples
Описание слайда:
Step 3 Square the deviation from the mean for both the samples

Слайд 20


Area Ecosystem Population, слайд №20
Описание слайда:

Слайд 21


Step 4 Calculate the sum of the squares
Описание слайда:
Step 4 Calculate the sum of the squares

Слайд 22


Area Ecosystem Population, слайд №22
Описание слайда:

Слайд 23


Step 5 Calculate the variance for both the samples
Описание слайда:
Step 5 Calculate the variance for both the samples

Слайд 24


Area Ecosystem Population, слайд №24
Описание слайда:

Слайд 25


Step 6 calculate the value of T using the formula provided in the Table
Описание слайда:
Step 6 calculate the value of T using the formula provided in the Table

Слайд 26


T –value Х1 - среднее значение выборки 1 Х2 - среднее значение выборки 2 S1²- дисперсия выборки 1 S2²- дисперсия выборки 2 N₁ - частота выборки 1 N₂...
Описание слайда:
T –value Х1 - среднее значение выборки 1 Х2 - среднее значение выборки 2 S1²- дисперсия выборки 1 S2²- дисперсия выборки 2 N₁ - частота выборки 1 N₂ - частота выборки 2

Слайд 27


Answer 2,14
Описание слайда:
Answer 2,14

Слайд 28


Step 7 Calculate the degree of freedom Рассчитать степень свободы df = (N1+ N2) – 2= 8
Описание слайда:
Step 7 Calculate the degree of freedom Рассчитать степень свободы df = (N1+ N2) – 2= 8

Слайд 29


Step 8 Find the critical value using the t- table
Описание слайда:
Step 8 Find the critical value using the t- table

Слайд 30


Degree of freedom 2,31
Описание слайда:
Degree of freedom 2,31

Слайд 31


Data analysis If the T-value is less than the critical value, then accept the null hypothesis Если Т-значение меньше критического значения, то...
Описание слайда:
Data analysis If the T-value is less than the critical value, then accept the null hypothesis Если Т-значение меньше критического значения, то следует принять нулевую гипотезу If the T-value is bigger than the critical value, the null hypothesis should be rejected Если Т-значение больше, чем критическое значение следует отклонить нулевую гипотезу Null hypothesis: There are no differences in the number of dandelions on the western and eastern sides of the school garden 2,14 2,31

Слайд 32


Analysis of results If the null hypothesis is accepted, then there was NO significant difference in the distribution of dandelions in the school...
Описание слайда:
Analysis of results If the null hypothesis is accepted, then there was NO significant difference in the distribution of dandelions in the school garden If the null hypothesis is rejected, then there was a significant difference in the distribution of dandelions in the school garden

Слайд 33


Conclusion There is no significant difference in the distribution of dandelions in the school garden on the western and eastern territories
Описание слайда:
Conclusion There is no significant difference in the distribution of dandelions in the school garden on the western and eastern territories

Скачать

Похожие презентации
Mypresentation.ru
Загрузить презентацию