_
‘
_
180 —
‘1{.f
-
,
—Theannualdistbuüonlsconst1tuted hy.seVeral os—
cillation's which amplitude. increases from the beginning
of
the annual cycle in
has 5Ïh-een
distribution 15 1101 d15- ‘ '
f;'tg1—ædj by;anexcess
-
.
to=5111115ee tempe1‘athm
€:ÂThis
ft0…-t
'fùnôënÿlîëïkîngæm—
f“peràmré,
and _pè‘àk5 of
de5—
Î . 51f1€5 the cyclic. tendancy Off—h? 51166165, 1111. give—11 localify
——
3111 :?he --no1‘m_al annuel
disîurbd
V
î;uîbÿî_ï—SQY€Ï…'&1 factors
-most…1îhæ1portant
l
between
quantitative
_
.Ï
”
5u1veys show that
and length of
Of_ highe5î denS1’üesof Populatmnare severeïy restmted and/01“
5î5%€555@ if thé. rat1ocenf1'0pages/Temona 51: the: very «moment ' '
of the annual
of
which takes
mearïy.…5p1thlg,
Or,.qual—ÎÇO 20—
Part, «Chap- 111
585
When the 115110 Cènfhàpàÿèa5./'Temôrà
! 7
themax1mum Qf the Çentropages,
population;.cangrow nmydbth genus…oecur 511nuïtañe0ùslyduring
=
more orlessnnp0rtant
Cycle…
_
—
ASSOCÎ3Îe
often fou—ndwith T. stylifera
1Gh»ap.l‘L @ 10. .:
‘
3) Ecologicalapproäch to ferti'lity and embryogenesis.
_— Algiers races of T. siylifera can lay down hetWeeh 7°7
ï
and betWeen 106 for the summer
These“iradesïare identified by measurement 0f—‘females
but “all“ Îîhe‘ ‘in1termèd—iàtes betWeen' œse" two- faces
can
be found. Near lethal temperatures,
develop—
_
_
_
,
«
—'
We have
daily fertilitÿ (DF) during the
rst 24 hrs. after capture of female-s .(IIn-d, Part, Chap. I,“ 5 4),
thè.annual distribution of »:D‘1F (Ilnd'.aPart,Chapg
5 5), its re—
lation With ”primary, production (nd. Part, Chap. I, 5 6) and
—With
(nd!
I,’ 5 7 &
BF is not re—
lated to metasome length of female butis proportionnal to pri—