Monitoring Native Bees on 10 stations within the Big ......Sep 09, 2012 · native bee populations...
Transcript of Monitoring Native Bees on 10 stations within the Big ......Sep 09, 2012 · native bee populations...
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Bottomland Bees• Monitoring Native Bees on 10
stations within the Big Rivers Network of the Midwest Region of the U.S. Fish and Wildlife Service in 2012
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What are we doing?• Conducting a survey for native bees,.
• Sampling habitats on 10 stations located near large rivers of the Midwest region of the U.S. F.W.S. National Wildlife Refuge System.
• Establishing a baseline (species list) that may be useful in monitoring environmental changes over time.
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Why are pollinators important??
• Provide essential ecological services• Crop pollination• Flower and tree pollination• Important component of the
biodiversity in many areas• Some research shows declines in
native bee populations (Forgotten Pollinators)
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Why Monitor Pollinators• Pollinators have high site fidelity• Pollinators have annual life cycles
• Maintaining a diverse assemblage of pollinators, is one of the best ways of minimizing risks due to climate change.
• Pollinator diversity provides “insurance“ not just for current conditions, but for future conditions as well.
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Bee Bowl Trapping• Solo bowls painted
flourescent colors• Filled with detergent
water• Passive sampling• USGS sample
design– 3 transects with 15
bowl traps separated by 5m for each habitat. Bowls deployed for 24 hours/ every 2 weeks/April-October
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Bee bowl trappingPros• Easy to learn and
deploy• Collects lots of
individuals• Can sample several
sites simultaneously• Methods easily
standardized
Cons• Specimens may
require storage in alcohol
• Processing bees requires time
• No ecological data • Must carry water • Difficult in tall grass
and steep terrain
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Netting at FlowersPros• Detailed ecological
information can be collected
• Flower records/Time of day
• Can process bees immediately
• Can observe bee habits• Can examine pollen
loads• Its fun!!!!
Cons• Requires netting skill• Hard to standardize
among different collectors
• Time consuming• Can only sample a
couple sites a day at different times
• Must carry poisons
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Why Monitor Bees
• Mostly non-migratory (more easily tied to a particular site)
• Annual life cycle ( more immediate detection of change)
• Pollinator data can be correlated to other data (plants, weather, hydrology, birds)
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Species Found Only In Upland ( Pasture/Old Field)
• Agapostemon texanus• Andrena imatatrix• Andrena nuda Megachile exilis• Andrena perplexa Megachile texana• Andrena personata Osmia lignaria• Andrena rudbeckiae Sphecodes dichrous• Augochloropsis metallica• Ashmeadiella buccomis• Ceratina calcarata• Colletes latitarsus• Florilegus condignus• Halictus parallelus• Heriodes carinatus• Lasioglossum bruneri• Lasioglossum forbesii• Lasioglossum fuscipenne• Lasioglossum lustrans• Lasioglossum nymphaearum• Lasioglossum rohweri• Lasioglossum truncatum• Lasioglossum zephyrum
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Species Found Only in Wet Prairie
• Melissodes communis• Svastra atripes• Perdita halictoides• Augochlora pura• Lasioglossum coreopsis• Lasioglossum disparila• Lasioglossum hartii
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Species Found Only In Bottomland Forest
• Andrena andrenoides Pseudopanurgus albitarsis• Andrena carlini Specodes Atlantis• Andrena commoda Specodes heraclei• Andrena erythrogaster Svastra obliqua• Andrena hippotes Xeromelecta california• Anthophora abrupta• Halictus tripartitns• Hylaeus mesillae• Lasioglossum coriaceum• Lasioglossum cressonii• Lasioglossum oceanicum• Lasioglossum testaceum• Megachile xylocopoides• Melissodes denticulata• Mellisodes subillata• Osmia atriventris• Osmia conjuncta• Osmia georgica
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What Have We Learned?• We have documented over 150 species of
native bees.
• We are gaining an understanding of the relationship between pollinators and plant phenology and hydrology.
• We have added three new state records and several county records for bee species.
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What We Don’t Know• Every bee species present ,or if a given species is
really absent.
• Relative abundance, population trends of bees at these sites.
• What is normal/average for these sites
• If this information can be extrapolated to other areas (refuge units, MDC, private lands).
• The correlation between this data and other data (birds, vegetation, hydrology, climate)
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Questions ?
• Based on what you know now, what do you want to know next?
• What are the potential relationships of bees to the overall health of other wildlife, ecosystems, and people?
• How might these relationships effect land management?
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A Partnership for Conservation Thanks To:
• Region 3 U.S. Fish & Wildlife Service- Big Rivers Network
• Missouri Department of Conservation
• Boone’s Lick Chapter MMN
• USGS – Wildlife Research Center Patuxent, MD
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Don’t Worry – Bee Happy