Caring for Pollinators - Bundesamt für Naturschutz

More documents

Recommendations

Info

Gross, Newstrom-Lloyd, Howlett, Donovan The Oceania Pollinator Initiative Native pollinators in crops in New Zealand Native insects as alternative pollinators Native pollinators in crops may become more important as honey bee populations decline from pests and diseases such as Varroa and Colony Collapse Disorder (Winfree et al. 2007). To assess the potential role of native insects in crops, we monitored commercial onion and pak choi over 5 years in 5 regions of New Zealand. We observed floral visitors and used window pan traps to intercept flying insects in the crop during peak flowering. Diversity and Abundance of Natives We found 9 species of native bees and at least 16 species of native flies visiting onion flowers. Figure 7 shows the relative abundance of native bees (Leioproctus and Lasioglossum) versus exotic bees (Apis mellifera and Bombus spp.) in traps in onion fields during 2004 and 2005 across all regions. Fig. 7: The relative proportion of native and exotic bees from traps in onion fields during peak flowering in regions of New Zealand. SI = South Island; NI = North Island 91
Gross, Newstrom-Lloyd, Howlett, Donovan The Oceania Pollinator Initiative Pollinator Performance of Natives We compared pollen loads and pollen deposition on onion stigmas for 15 flower visiting species. Pollen deposition on virgin stigmas correlated strongly with pollen loads (loose pollen) and insect body length. The larger native bees in Leioproctus and flies (Calliphoridae and Tachinidae) carried and deposited a number of pollen grains comparable to honey bees. Smaller native bees in Lasioglossum transferred much less pollen but their high abundance in the crop counterbalanced this. Future research aims to understand the lifecycle and landscape factors that influence native pollinator population dynamics. Management strategies can then be formulated to increase the reliability of native pollinators in crops. 92
Page 1 and 2:
Caring for Pollinators Safeguarding
Page 3 and 4:
Cover picture: Fruit basket with it
Page 5 and 6:
Vorwort Blütenbestäuber nehmen ei
Page 7 and 8:
L.E. NEWSTROM-LLOYD, J. COOPER, N.J
Page 9 and 10:
Ssymank, Hamm, Vischer-Leopold & Wi
Page 11 and 12:
Ssymank, Hamm, Vischer-Leopold & Wi
Page 13 and 14:
Collette International Perspektive
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Dias The Brazilian Pollinators Init
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Roubik Small bees have a big job 2.
Page 35 and 36:
Roubik Small bees have a big job A
Page 37 and 38:
Roubik Small bees have a big job De
Page 39 and 40:
Roubik Small bees have a big job As
Page 41 and 42:
Roubik Small bees have a big job Na
Page 43 and 44:
Roubik Small bees have a big job Pr
Page 45 and 46:
Roubik Small bees have a big job Au
Page 47 and 48: Ssymank & Kearns Flies - Pollinator
Page 61 and 62: Ruggiero, Adams, Saraiva North and
Page 63 and 64: Gikungu, Hagen, Kraemer An overview
Page 71 and 72: Fonseca, Saraiva, Gonçalves, de Jo
Page 79 and 80: Fonseca, Alves, Saraiva, Landeiro,
Page 85 and 86: Newstrom-Lloyd, Cooper, Spencer, Wi
Page 93 and 94: Gross, Newstrom-Lloyd, Howlett, Don
Page 95 and 96: Gross, Newstrom-Lloyd, Howlett, Don
Page 97: Gross, Newstrom-Lloyd, Howlett, Don
Page 101 and 102: Potts, Roberts, Kunin & Biesmeijer
Page 107 and 108: Steffan-Dewenter Pollinator decline
Page 115 and 116: Ssymank Highlights - Zusammenfassun
Page 127 and 128: Programme: 18:15 h Opening by AXEL
Page 129 and 130: Hamm & Ssymank Impressions of the s
Page 135 and 136: Hamm & Ssymank The pollinators buff
Page 149 and 150:
Hamm & Ssymank The pollinators buff
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Hamm Fact sheet pollinators: Hymeno
Page 157 and 158:
Hamm Fact sheet pollinators: Hymeno
Page 159 and 160:
Hamm Fact sheet pollinators: Bees (
Page 161 and 162:
Hamm Fact sheet pollinators: Bees (
Page 163 and 164:
Ssymank, Kearns, Pape & Thompson Fa
Page 165 and 166:
Ssymank, Kearns, Pape & Thompson Fa
Page 167 and 168:
Ssymank Fact sheet pollinators: Flo
Page 169 and 170:
Ssymank Fact sheet pollinators: Flo
Page 171 and 172:
Hamm & Wittmann Fact sheet pollinat
Page 173 and 174:
Hamm & Wittmann Fact sheet pollinat
Page 175 and 176:
Hamm Fact sheet pollinators: Beetle
Page 177 and 178:
Schuchmann Fact sheet pollinators:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Tschapka Fact sheet pollinators: Ba
Page 187 and 188:
Tschapka Fact sheet pollinators: Ba
Page 189 and 190:
Literature CANE, J., H. (2001): Hab
Page 191 and 192:
Literature HAGEN, E. VON (1994): Hu
Page 193 and 194:
MICHENER, C.D. (2000): The bees of
Page 195 and 196:
Literature THERY, M., STEVENS, A.-D
Page 197 and 198:
Links International Pollinators Ini
show all

Caring for Pollinators - Bundesamt für Naturschutz

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?