Post on 13-May-2020
transcript
23/08/2018
1
Romina Rader
Senior Lecturer
University of New England,
Armidale
Email:rrader@une.edu.au
Twitter: @rominatwi
Stingless bee
abundance and
efficiency in Australian
crop systems
Contributors to our crop pollination work: Bruce
White, Carolyn Sonter, Emma Goodwin, Juan Lobaton,
Bryony Willcox, Liam Kendall, Manu Saunders, Sarah
McDonald, Rob and Raelene Mitchie, Brad Howlett,
Lindsey Kirkland, Mark Hall, Jeremy Jones, Tobias
Smith, Jamie Stavert and Costa Group.
Stingless bee abundance and efficiency in crops:
1.
2.
3.
Vis1 Vis3 Vis5
23/08/2018
2
Stingless bee abundance and efficiency in crops:
1.
Crops Studied Across Australia
23/08/2018
3
Apple Stanthorpe, QLD 2017
Blueberry Coff’s Harbour, NSW 2016 & 2017
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4
RaspberryCoff’s Harbour, NSW 2017
Avocado Bundaberg, QLD
r
occinella
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5
Macadamia Bundaberg, QLD
r
occinella
Mango Bundaberg, QLD 2016 & 2017
r
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6
Mango Mareeba, QLD 2014 & 2016
r
Mango
Katherine, NT 2017
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7
Watermelon Katherine, NT 2017
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8
Bundaberg,
QLD
Coff's Harbour,
QLD
Katherine,
NT
Mareeba,
QLD
Stanthorpe,
QLD
Apis cerana �
Apis mellifera � � � � � � �
Braunsapis spp. �
Ceylalictus perditellus �
Homalictus spp � � � � �
Hylaeus spp �
Lasioglossum spp. �
Megachile micerythrura �
Tetragonula spp � � � � � �
Xylocopa spp � �
Unknown Small Native Bees � �
Managed and Wild Bees Found in Our Focal Crops
Pollinators
Plants visited by pollinators
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Blueberry and raspberry Coff’s Harbour, NSW 2016 & 2017
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earae
S Dy ip
r tpeh
ri ada
eX
ylocop
aA
ustr
osyr
phus
Hom
alic
tus
Tetragonula Apis
Raspberry Blueberry
Willcox et al. (in prep.) Identifying keystone crop pollinators across co-flowering horticultural crops
23/08/2018
10
Willcox et al. (in prep.) Identifying keystone crop pollinators across co-flowering horticultural crops
Bra
unsa
pis
Icne
um
onid
ae
Sca
rabid
ae
Exo
ne
ura
Co
ccin
ella
Ha
lmus
Acra
ea
Mir
ida
eP
enta
tom
iida
eP
ieri
sR
ipto
rta
sH
ete
roce
ra
Lucili
aS
apro
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a.s
p.B
om
byl
ida
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iphiid
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Mic
raspis
Le
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Sco
liida
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lycyp
ha
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G
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ste
thus
La
sio
glo
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X
ylo
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H
em
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Sim
osyr
phus
Chry
so
me
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Austr
osyr
phus
Co
leo
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Rho
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Me
loid
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Apo
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Me
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Lyc
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Co
ccin
elli
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Fo
rmic
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Chry
so
mya
Ho
ma
lictu
s
Ca
nth
ari
da
e
Syr
phid
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Ca
llipho
rida
e
Tetr
ago
nula
Apis
Apple
Ma
ngo
Wa
term
elo
n
Ra
spbe
rry
Ma
ca
da
mia
Avo
ca
do
Blu
ebe
rry
Willcox et al. (in prep.) Identifying keystone crop pollinators across co-flowering horticultural crops
23/08/2018
11
Pollinators
Plants visited by pollinators
Site 1 Site 2 Site 3
Willcox et al. (in prep.) Identifying keystone crop pollinators across co-flowering horticultural crops
23/08/2018
12
Avocado 2015 Bundaberg: Visitation only
Willcox et al. (in prep.) Identifying keystone crop pollinators across co-flowering horticultural crops
Avocado 2017 Bundaberg: Visitation only
Willcox et al. (in prep.) Identifying keystone crop pollinators across co-flowering horticultural crops
23/08/2018
13
Stingless bee abundance and efficiency in crops:
1.
2. Vis1 Vis3 Vis5
The number of visits is important!
• Too few visits = crumbly fruit
The number of visits is important!
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14
Other
2. Pollinator efficiency
Vis1
Stingless bees alone
Fru
it w
eig
ht
Kendall et al. (in prep.) Mixed pollinator visits result in higher fruit weight in blueberry
23/08/2018
15
Honey bees alone
Fru
it w
eig
ht
Kendall et al. (in prep.) Mixed pollinator visits result in higher fruit weight in blueberry
Stingless bees alone
We
igh
t
Hall et al. (in prep.) Multiple pollinator visits are required for commercial raspberry production
23/08/2018
16
Honey bees alone
Fru
it w
eig
ht
Hall et al. (in prep.) Multiple pollinator visits are required for commercial raspberry production
Stingless bee abundance and efficiency in crops:
1.
2.
3.
Vis1 Vis3 Vis5
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17
Mixed HBs and SBs
Kendall et al. (in prep.) Mixed pollinator visits result in higher fruit weight in blueberry
Mixed HBs and SBs
Hall et al. (in prep.) Multiple pollinator visits are required for commercial raspberry production
23/08/2018
18
Number of Drupelets; (lots is good!)
1-4 Visits 5-9 Visits 10+ Visits
The number of visits is important!
Nu
mb
er
of
dru
pe
lets
Hall et al. (in prep.) Multiple pollinator visits are required for commercial raspberry production
Why is there so much variation? Are mixed visits good?
1. Differences in foraging
behaviour could mean some
visits are good for flower and
others not
2. Differences in foraging
behaviour could mean more
fruit set overall
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Pollen collecting behaviour
Nectar collecting behaviour
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Proportion fruit set after 1-5 visits
Kendall et al. (in prep.) Mixed pollinator visits result in higher fruit weight in blueberry
Conclusions:
1.
2.
3.
Vis1 Vis3 Vis5
General patterns for each
crop do not exist!
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Romina Rader
Senior Lecturer
University of New England,
Armidale
Email:rrader@une.edu.au
Twitter: @rominatwi
Questions?
Contributors to our crop pollination work: Bruce
White, Carolyn Sonter, Emma Goodwin, Juan Lobaton,
Bryony Willcox, Liam Kendall, Manu Saunders, Sarah
McDonald, Rob and Raelene Mitchie, Brad Howlett,
Lindsey Kirkland, Mark Hall, Jeremy Jones, Tobias
Smith, Jamie Stavert and Costa Group.
Willcox et al. (in prep.) Identifying keystone crop pollinators across co-flowering horticultural crops
Vis1
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22
Species ranked by abundance for each crop, year and region
Willcox et al. (in prep.) Identifying keystone crop pollinators across co-flowering horticultural crops