THE ROLE OF
PERSONALIT Y IN
SOLITARY SPIDERS IN
DIFFERENT CONTEXTS
N A R M I N I L G A R B E Y D I Z A DA
Ph.D.
PROJECT
PREDATION ● INFECTION ● REVERSED CANNIBALISM ● MIMICRY
CONTEXT I
P E R S O N A L I T Y I N
P R E D AT I O N
I PA RT O F T H E P R O J E C T Drassodes cf. lapidosus
P E R S O N A L I T Y
- c o n s i s t e n t / i n c o n s i s t e n t
- b o l d - s h y / a g g r e s s i v e - d o c i l e
G E N E R A L I S T S P I D E R P R E D A T O R S
- d i v e r s e f o o d i t e m s
- u n i v e r s a l a t t a c k s t r a t e g y : v e n o m a n d
s i l k
❖ P E R S O N A L I T Y
❖ AT TA C K B E H AV I O R
INTRODUCTION
C A N P E R S O N A L I T Y P R E D I C T T H E
P R E F E R E N C E O F A P R E D A T O R O N A T T A C K
B E H A V I O R ?
H 1 : B O L D I N D I V I D U A L S M I G H T U S E V E N O M
AT TA C K R AT H E R T H A N S I L K
H 1 . a . A G G R E S S I V E I N D I V I D U A L S M AY H AV E
M O R E V E N O M VA L U E T H A N S H Y I N D I V I D U A L S
AIM
bold
venom
shy
silk
N = 5 3
6 a d u l t / 4 s u b a d u l t ♀
9 a d u l t / 2 s u b a d u l t ♂
3 2 j u v e n i l e s
D r a s s o d e s
( M E A N ± S E M = 2 . 5 0 ± 0 . 0 5 )
P a r d o s a
( M E A N ± S E M = 2 . 1 8 ± 0 . 0 2 )
B E H A V I O R A L A S S AY S
➢ B O L D N E S S T E S T ( e x p l o r a t o r y t i m e )
➢ A G G R E S S I V E N E S S T E S T ( D r o s o p h i l a h y d e i )
➢ P R E D AT I O N T R I A L ( N = 5 3 D r a s s o d e s / N = 1 0 6 P a r d o s a )
M O R P H O L O G I C A L M E A S U R E M E N T
➢ V E N O M D I S S E C T I N G ( w i d t h a n d l e n g t h )
D ATA A N A LY S I S
➢ I E X P E C T T O L E A R N D U R I N G T H I S C O U R S E ☺
MATERIALAND
METHODS
Hády
B E H A V I O R A L M O R P H O L O G I C A L
S i l k - u s e d g r o u p w i d t h ( 2 r )
R a g / b = 0 . 2 8 l e n g t h ( d )
R a g = 0 . 3 8 V e n o m v o l u m e :
R b = 0 . 7 4 V = d π r 2
V e n o m - u s e d g r o u p
R a g / b = 0 . 2 9
R a g = 0 . 6 2
R b = 0 . 3 7
AVAILABLEDATA
VENOM-USED GROUP
SILK-USED GROUP
VENOM-USED GROUP SILK-USED GROUP
VENOM-usedspiders
mean bold/mean_v_pro_l
SILK-usedspiders
mean bold/mean_v_pro_l
13.81 12.38
mean aggress/mean_v_pro_l mean aggress/mean_v_pro_l
13.73 9.73
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