59
אאאאאאאא( 1 ) 1 . תתתת תתתתת תתתתתתתתתתתתתת- תתתתתתתתת: תתתת תתתתתתת תת תתתת2 . תתת תתתתתתת תתתתתתתתת: תתת)תתתתתתתת( תתתתתתתת תתתת תתתתתתתתת תתתת תתתתתתת3 . תתתתת תתתתת תתתתתתתת תתתת תתתתת תת תתתת: תת תתתת תתתתתתתתת תת תתת תתתתת?4 . תתתתת תתתתתתתתת תת"תKrebs : "תתתתתתתת תתת תתתת תתתת תת תתתתתת תתת תתתתתתתתת תתתתתתת תתתת תתתתתתתת תתתתתתתתתתת תתתתת תתתתתתת תת תתתתתת תתתתת תת תתתתתתתתתת.5 . תת תתתתת תתתתת תתתתתת תתKrebs תתתת תתתתתתתתת? תתתתתת תתKrebs תתתתת תת תתתתתתת תתתתתתת תתתתתתתתת תתHaeckel תת'תת תתתתת תתת תת תתת תתתתתת תתתתתת תתתתתתת תתתתת.6 . תתת תתתתת תתתתתתתת תתתתתת תתתתת תתתתת "תתת")תתתתת( תתתתתת תת תת תתתתת תתת)תתתתתת( תתתת תתת. תתתתתתתת תתתת תת תתתתת תתתתתתת תתתתת תתתתתת תתתת תתתתת תתתתתתת תתתתתת תתתתתת. תתתת תתתת תת תתתתתתתתתתת( תתתתת תתתתתתת) תתתתת תתת תתתתת תתתת תתתתתת תתת. תתתתתתתתת תתתתתת תתתתתת תת תת תתתתתת תתתתת תתתתתתת תתתתתת תתתת תתתתתתתתתתתת.- תת7 . תתת תתתתתת תתתתתת תת תתתתתתתתת תתתת תתתתת? *תתתתתתת תתתתת תתתתתת תתתתתתתתת תתתתתתת תתתתתת תת תתתתתת תתתתת תתתתתתת תתתתתת תת תתתתת תתתתתתתתת תתתתת. *תתתת תתתת תתתתתת תתתתתת תת תתתתתתתת תתתתתתתת תתתתתת. *תתתתתתת תתתתתתתתת תתתתתתתתת( " ת"תתתתת תתתתת ת/תת תתתת תתתתת) תתת תתתתתת תתתתתתתת תתתת תתתתתתתת תתתתתת תת תתתתתת תתתתתת. *תתתתתת תתתתתת תתתתתתת תת תתתתתת תתתתתת תת תתתתתתת תתתת תתתתתתת תתתתתתת תתתתת תתתתת תתת תתתת תת תתתתת תתתתת. *תתתת תתתת תתתתתתתתת תתתתת תתתתתת תתתתת תתתת. *תתתתתתת תתתתתתתתתת תתתתתתת תת תתתתתתתתת תתתתת, תתתתתתת תתתתת תתתתת תתתתת תת תת תתתתת.

הורדה שלי - סיכום_אקולוגיה

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) 1( 1. : - 2. : )( 3. : ? 4. " " :Krebs . 5. Krebs ? Krebs Haeckel' . 6. )( "" )( . . ) ( . -. 7. ? * . * . * "" ) / ( . * . * . * , . 8. . 3 ) (? . : "" " . : . . 9.

: . : . 01. ) (? " .

) 2( 1. -: ) ( . : ) ( ), , '(. ) ,(Adaptation . 2. : ) ( . 3. : ' . , . : " " , . 4. 5 ? . ? . ( / : . ( ) (: . . : , - )(, , , ) (. ( : ) , '( . , . ) (. ( : . . ( : . 5. ? . 6. ( ) Fitness (: ' ) ( ' . Fi = Di/Dm Fi .i Di' .i Dm' . ( - fitness " " -, . 02 . :(

967.0 = 31/01 = 1f 516.0 = 31/8 = 3f

296.0 = 31/9 = 4f 31 = fm 329.0 = 31/21 = 2f 583.0 = 31/5 = 5f 1 = 31/31 = 6f 5,4,3 . 6,2,1 .

7. ) fitness (: - fitness . . 8. ESS )/( " , ) ( , " , ) ( . 9. ) (habitat " - )( )( . )\\(. )( )" -( ' . )- (niche ) -( , , . , . ? 01. " . " ) (. trade-off " " , 11. . . trade-off . )(. 21. ? . . . . . . 3 ) (: 31. : . 1( . : 2( . : )( 3( .

1 ) 3( ) 1. ( ? ).(size structure )/( ).(stage structure ).(age structure ).(sex ratio / ).(genotypic/phenotypic frequency : 2. , 1( . . 2( . 3( . 4( : ) (, . : 3. - b per capita birth rate - d per capita death rate - i per capira immigration rate - e per capita emigration rate - per capita . * . 0 b-0 d . 4. ) (. 0r: r = b0 d - rmax " " . rmax , , . r = rmax . dN/dt< rmax" . ) 5. ( ) ( . )( .

ln(Nt) = ln(N0) + rmax t Nt = N0e rmax t

. )(

ln((K - Nt) / Nt)

Continuous Logistic Growth120 100 80 N(t) 60 40 20 0 1 4 7 10 13 16 Time 19 22 25 28

a rmax

t

Nt = K / (1 + [e^(a - rmax t)]) a = ln((K-N0) / N0)

ln((K - Nt) / Nt) = a - rmax t

dN dt dN N] N[t ] N[ 0

= rmax = rmax

.(6. )

N d t

dN t r dt N = max 0

(ln[N(t)]-ln[N(0)] = rmax(t-0

= N0 e r N( ) tNt = N0e rmax t Nt/ N0 =2=e rmax t ln2=rmaxt t=ln2/rmax

t N( ) r t =e N(0)

mx a

t

mx a

t7.

r=0.025 t=27.73, 28 generations r=0.055 t=12.6, 13 generations

r=0.08 t=8.66, 9 generations r=1.2 t=0.57, 1 generation 2 3 t=ln3/rmax r=0.025 t=43.9, 44 generations r=0.055 t=19.9, 20 generations r=0.08 t=13.7, 14 generations r=1.2 t=0.9, 1 generation 8. - ) (G ), ...( . G rmaxG =e 0 = R , : 0= R : 1 = 0rmax = 0 R 9. :rmax 81 81 9=2/81=G=18, 0R81/)9(ln(R0)=rmaxG rmax = ln(R0)/G rmax = ln 21.0 = rmax 81 01 5=2/01=G=18, 0R81/)5(rmax = ln 980.0 = rmax 62 81 9=2/81=G=26, 0R62/)9(rmax = ln 480.0 = rmax 0 R G, rmax. 01. 01 Nt = N0e 2 = 0N 44.2=2.0 N1 = N0e 0.2 = 2e 89.2=2.0 N2 = N1e 0.2 = 2.44e 46.3=2.0 N3 = N2e 0.2 = 2.98e 44.4=2.0 N4 = N3e 0.2 = 3.64e 24.5=2.0 N5 = N4e 0.2 = 4.44e 16.6=2.0 N6 = N5e 0.2 = 5.42e 60.8=2.0 N7 = N6e 0.2 = 6.61e 38.9=2.0 N8 = N7e 0.2 = 8.06e 21=2.0 N9 = N8e 0.2 = 9.83e 4146.41=2.0 N10 = N9e 0.2 = 12e -K 11. . - 1 ) (Nt / K - . )])Nt = K / (1 + [e(a - rmax t 0a =ln (K-N0) / N 21. : ln((K - Nt) / Nt) = a - rmax t :0.2 t

31.)ln((K - Nt) / Nt

) (dN /dt)*(1/N

t

rmax

dNt/dt

a

Optimal yield

rmax -rmax /KK

t

2/K

K

t

Nt

Nt

41. . . ,K .

2 - : 1. 0-rmax rmax=b0-d0 b0/d / - 2. G rmax G R0- = e . 0= R 3. -G ) ( . 4. / 5. 6. )( Nt = N0e rmax t

7.

)])Nt = K / (1 + [e(a - rmax t 0a = ln (K-N0) / N

8. .9. ? .

03

2 ) 4( 1. - )( " . . ? 1. ) (. 2. ) (. 2 : 1. . . " . ) (time specific 2. : . : . , . . 2. - . . - , ) ( / . 3. I ) (. II . . . III . . :

Type I)Log(nx

Type II Type III

)Age (e.g., yrs ' " .

4. " " " ". * , ) (. - rmax .

5. ? " ) ( ): , , '( ) ( . : " " . : . : . " . " . ) ( . Trade-off , . : , . : ):' (. Iteroparity ' . Semelpari -ty . ):' (. . ): ' (. ): (. ) (.

6. k-:r ' -) k ( . k , . , . r . , . , k .r K , r , , )( )"(

1 - 2 3

7. ) :(random . . , . 4 : 1( . 2( . 3( . 4( . ) :(regular,uniform . . : . ) :(clumped, aggragated . )(. " 8. " . . . )

(. . ) ( - fitness . 3 " ": 1( 2( 3( " 9. " ) ( , ) (. ) (. . - ": . 1. 2. . ), -, ( , . ) , , .( . " . 01. : ) ( ) (, : . ), ( "" ) ( ), , .(K : . , . 11. - . - . . 21. "" " , . .

3 - : 1. " - trade-off " . )( : . 4. , , . 5. . 6. , . 7. , .= Pk m k m e !k

8. Life history ):' (. Iteroparity ' . Semelpari -ty . ):' (. . ): ' (. ): (. . 9. .- .

1 ) 5( 1. ) (. ) (, ) (, ) (. )0,0( . )+,0( . )+,+( . 2 . )-,+( ) (exploitation , "" . )-, 0( . ) ( )-,-( 2 . : , , . 2. ? ? , . , . . 3. . : , ), ( ), , (. 4. " ) (. . 5. :Lotka Voltera ( L - V = = )( , . " , . ( -0 1: )0, 1 (K X )0 ,1(12/K .Y -0 2: )0, 2 (21/K X )0 ,2 (K .Y 1 1 : 2 1 .K 1 2 1 .12/K -0 , 1 . , . " 2 ) (. ( 1 : K1/K2 > 12 ; K2/K1 < 21 2 : K1/K2 < 12 ; K2/K1 > 21 - K1/K2 > 12 ; K2/K1 > 21 - 2 21 > K2/K1; 12 < K1/K ( . ( :

= 5.21/6.31 = 880.1 12 = 5.8/22 = 2.5821

= 1 = 2

1K2/K > 21 53/27 < 85.2 650.2 > 85.2

* : K1/K2 < 12 - 880.1 < 27/53 < 880.1684.0 . : 2*21 0 = K2 N 1N2 *12 0 = K1 N 2*21 N2 += K 1N2 *12 K1 = N 27 =+ 2*2.58 N 1N2 *1.088 35 = N 42 = 1N ": : K1/ K2 > 12 - 880.1 < 53/27 880.1 > 650.2

1 N 1+ N 1+ N 01 = 2N K2/K1 < 21 5327/ < 85.2 684.0 < 85.2

) 1 (. , , .

4 - : ) - ( )( , 1. . 0 )( 2. , 0. " 3. . " :K1 / 21

2N2K

21 < K2/K1;

212 < K1/K

1K

K2 /

2 1

1N

)( 4. . " :2K2 1

- 2> K2/K1; 12 < K1/K

2NK1 / 21

12

> K2/K1;

21

2< K1/KK2 /

Saddle point

2 1

1K

1N

time series 5. . X Y .X . phase plane 6. X ,Y . . " . population trajectory 7. . 8. -? - 1

K1 /

1 2

2N

21 > K2/K1;

212 < K1/ K

2K

K2 /

2 1

1K

1N

2 ) ) 2 2 21 > K2/K1; 12 < K1/K2K

12

> K2/ K1;

21

2< K1/ K

2NK1 /

21

1K

K2 /

12

1N

9. -? . .

2 ) 6( ) (phase plane 1. 1 2. - x 1 - y 2. 0 )( , 0. ( 2. 1 2:

21 = 2K1 = 18 K 2 1 1 : 4.0 = 57.0/03.0 = 21 = 12 1 2 2 : 3.0 = 08.0/42.0 : 81 > 3.0/21 = 04 - 12K1< K2/ : 21 > 4.0/81 = 54 - 21K2< K1/ " . . 2 . ( " , ' ) ( . ' )' =' "(. )1( 0 1: = 2K1 N1 - 12 N )2( 0 = 2: 1K2 N2 - 21 N : 81 = 0 )1( 2N1 = 18 0.4N 2N1 0.4N )2( 0 = 21 1N2 0.3N )1( )2(: 0 = 21 8 5.7 = 2N2 0.3(18 0.4N2) 0 = 6.6 - 0.88N2 N 2N 51 = 11N: 0 = 12 -7.5 - 0.3N1 N 3. , - ) ( , . Gause - . , - ) (, , P. aurelia .P. caudatum " Gause P. caudatum- .P ,bursaria - . ) ( . - . 4. " " - - . . " . ,

. . . , ', .

5. . . : 1. ) , (. )(. ' 2 . -2 . 2. Trade-off ) , (. . 3 :Schoener 6. ( ) (. ( ) (. ( : , ) ( . * - . : - christmas island . )" (. : 2 . 2 ) (. Balanus Chthamalus " . Chthamalus . . : . . . . 7. ". . . , . .

5 - 1. -- ?life-dinner principle , . 2. . ) ( . 3. ? , . . . : 4. . )( . 5. 0. X Y . , . 6. - 0. X Y . , . 7. ) (g . 8. -? . . . . .9. - -? : ... . . .- .

) 7( 1. ) ( . : 1. ) , ( )(. 2. Trade-off ) , (. . , '. ) ( . " : ), (. ) (. , . 2 2. . . 2 . . - 3. : ( ) (. ( . ( . ) (prey swiching 4. , . , . , 1 2 . , 2 1. , - . life-dinner 5. , . , . : 6. : . : . : . : . -

: . . ).(mimicry .

7. 1. 2. 3. 4.

) 8. ( . , \ . - : . : 9. I , " . II . , )(. III . . , ) II , .(s

Number of prey consumed )(per-predator

Type I

Type II Type III

Density of prey population 3 :III 1( . III 2( . . . 3( , .

) (optimal foraging 01. . : ) ?/ ?(. 11. . . - .

6 - - 1 2. (Number of prey captured by that predator) / (Number of prey )captured by all predators ---------------------------------------------------------------------------= Fitness of predator)(Number of that predator) / (Total number of predators (Number of prey escaped of that prey) / (Number of prey escaped by all )prey -------------------------------------------------------------------------------- = Fitness of prey)(Starting number of that prey) / (Starting number of all prey 001 02 03 01 06 04 001 51 41 5 43 66 001 01 01 31 33 76 : 001 004 " 5 05 7 16 71 54 92 651 17 442

5 5 5 51

004/001(/)442/66(=)(fitness(knives)=(50/156)/(5/15) fitness(humus 3. -? . trade off . 4. -? . . 5. . : .: .: .: .6. , . 7. . 8. . 9. .

Number of prey consumed (per-predator)

Type I

Type II

Type III

Density of prey population

) ) 8 1( - . , . - . , . . . . . . 2 )(. . )(. )(. 2( . . . : 005-004 , -034 . )(: . : . : ( . ( )" "(. 3( - . - . - . 4( ), ...( . . : , , , . - . . )(. - . . .5( - "" : . , .

: . . . "" . 6( . " . )(. ) " (.

) 9( ) ( 1. . / / . 2. , , . )" "( . "" . , . . . : . )( : 3. ) :(assemblage ), (. . ) :(guild ), , (. ) :(functional group ), , (. 4. : ) (. . - \.

5. . ' . 6. " ". ) /(. : ) 7. (

536.0 = 2)791/1( *5 + 2)791/04( + 2)791/251( = 2Community 1: SD = pi 41.0 = 2)41.0( * 7 = 2Community 2: SD = pi : ) ( 75.1 = 536.0/1 = 2Community 1: SE = 1/ pi 41.7 = 41.0/1 = 2Community 2: SE = 1/ pi

: ) ( 2 22.0 = )7*536.0(/1 =)Community 1: SEW = 1/( pi *R 20.1 = )7*41.0(/1 =)Community 2: SEW = 1/( pi2*R : ) ( )791/04(Community 1: H' = - (pi ln(pi)) = -(152/197)ln(152/197) - (40/197)ln91.1 = )791/1(5*(1/197)ln 6.31 = )41.0(Community 2: H' = - (pi ln(pi)) = -7(0.14)ln

- 8. ) (log-series distribution . , , "" . )S = ln(1+n/ .' - S " . : 9. . . . 01. : " ". " . . " " . )( " " ". 3 : . 1( ) (tolerance 2( . . 3( . : " ". : , : , '. 11. . ) '(. / / . ".

) (. 21. . : 2 ) ( . ) (. , .

8- : 1. . . 2. 3. . 4. . ) ( 5. . 6. . ? (D = pi2(D'=1/D 7. -pi = ni / N , ni -i, N . ' ? 8. -c . -S ) ( 9. . . . .- .

) 01( 1. . , . , 2. . SPP = cAz SPP , c ) A , z (, . : log SPP = log c + z log A SPP = 10 = c10z 3. z 002) SPP = 15 = c c,z ( z z 01/51 = 01c200 /c 5.1 = )01/002(02(z = 20z ln1.5 = zln20 z = (ln1.5)/(ln 531.0=z z . ( , . . ( 1( ) (. 2( , . z 53.0-52.0. ( : 1( , . 2( . 3( -2 : . z 2.0-1.0. ( ) ( . , , z )( . 1-5.0. 3 : ( . ) (. ( . . , , . 4.

( . . . 5. )(? . : . , " . . , ) , 6. ( . - ' 7. : ) (, .I , .E , , . , ) (. : , . , ) , (. : 8. , ) (. : ) (.Close to mainland

)(Immigration or Extinction

Small island

Rate

Far from mainland Large island

FS CS

FL CL

Pool

Number of species on an island -4 . 4 : CL . ' . FS . ' . CS- FL ) CL-.(FS -

9. simberloff ) , '(. . )' ( ) (. . ". ) (. . * , ' , ' . , . (SLOSS (Single Large Or Several Small : ? : . . . : ) ( . ) (. 01.

)( 11. ' . ) ( ) (.

SpeciationRate

Extinction S

Number of species in the mainland

) Intermediate Disturbance Hypothesis " , , 21. '(. , ' . ' . .

Number of species

Disturbance regime - / . : . , , .31.

Number of species

Productivity ' : 41. , . "": ) (. ) - (.

- ) ; (. ) (. ) ][ (. ) (. ' . : 1( . 2( , ) 31( "" .

9 - - : 1. "" " . 2. "" " ) ( . 3. (SPAR (species area relationship . 4. . . 5. . . 6. , . . 7. , . . . 8. , . .

) 11( 1. - -. 2. : - . ), (. 3. : : ) , (. : , )( )%09 (. 4. ( NPP (Net primary production . * ** NPP = GPP -R * - (GPP (Gross primary production : " . ** ) -Respiration) R: ) (. %07-05 " . NPP: . )(. . . . . )(. , . 5. )-(Consumption efficiency . 1-CE = intake at trophic level n / net productivity at trophic level n ) (Production efficiency " . PE = net productivity / assimilation ) (Assimilation efficiency . 1-AE = assimilation at trophic level n / assimilation at trophic level n * . 6. , ) ( . : " ) (: .

) (.

7. . ) (. ) (. ) (. 8. " . , , . . . . 9. : 4 CO2, CO, CH .NO : )( . N .NO ) (. ". .NO01. . ": (SO4(g) + H2O(l) HSO4 (aq : . ): , (.

) 21(1. : / . : . "" --< . ) ( : .Edge effect ) :(Habitat fragmentation . . - , 2. . . , , ) ( 01-1 . , . 3. . ) (Inbreeding depression . );(Genetic drift4. . )3 (.) Chaotic dynamics : , 8.2>.(rmax ) (Demographic stochasticity / ) (. ) (Catastrophe , ) (. 5. : ) ( -: .Edge effect , . . ) (Hot Spots 6. . : ) 3 (, , . 7. - ) (. :

. . : 000,002 - " 3.8 \

1. 2. 3.

8. : " " . , , . " ". . , , . .