Good evening

For my Master Thesis I am calculating the daily Volume (possible number of birds at the site on the next day) on a daily basis.

after I have done my research I have a questions regarding the formula (attached) used in this paper :

regarding my work I try to estimate the daily volume of one day to another (so here from day 1 to day 2) . I assumed to work with

V=N(1)+(N(1)-N(i-1))* Phi(i-1)

I ridiculed the summing sign because the interval of my days is only 1 and no further summation takes place.

I used the first one of examples below, but I am not sure anymore because I do not know how to translate the N(i-1) ; while phi(i-1) means the stopover persistence between day 1 and 2.

To put in Numbers in

First day number of seen Individuals= N1 =11

Second daynumber of seen Individuals = N2= 7

And Phi is the stopover persitence (the proabbility an Indiviual stayed in the locality)

So which of these formula is the right one regarding this formula?

1.) V=11+(11-7)* Phi(i-1)

2.) V=7+(7-11)* Phi(i-1)

3.) V=11+(11-(-4))*Phi(i-1)

I would be very glad if you could help me out because I have searched for a lot of possible answers and after doing my statistics my mind is kind of blank.

Greetings Dennis

For my Master Thesis I am calculating the daily Volume (possible number of birds at the site on the next day) on a daily basis.

after I have done my research I have a questions regarding the formula (attached) used in this paper :

regarding my work I try to estimate the daily volume of one day to another (so here from day 1 to day 2) . I assumed to work with

V=N(1)+(N(1)-N(i-1))* Phi(i-1)

I ridiculed the summing sign because the interval of my days is only 1 and no further summation takes place.

I used the first one of examples below, but I am not sure anymore because I do not know how to translate the N(i-1) ; while phi(i-1) means the stopover persistence between day 1 and 2.

To put in Numbers in

First day number of seen Individuals= N1 =11

Second daynumber of seen Individuals = N2= 7

**(is N2 the same as N(i-1)??)**or the**difference between i-1 so****day 2 minus day 1 = -4 (?)**And Phi is the stopover persitence (the proabbility an Indiviual stayed in the locality)

So which of these formula is the right one regarding this formula?

1.) V=11+(11-7)* Phi(i-1)

2.) V=7+(7-11)* Phi(i-1)

3.) V=11+(11-(-4))*Phi(i-1)

I would be very glad if you could help me out because I have searched for a lot of possible answers and after doing my statistics my mind is kind of blank.

Greetings Dennis