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rusticus on local freshwater ecology Anthony Bonifonte Mentor Angie - - PowerPoint PPT Presentation
rusticus on local freshwater ecology Anthony Bonifonte Mentor Angie - - PowerPoint PPT Presentation
The effects of invasive crayfish Orconectes rusticus on local freshwater ecology Anthony Bonifonte Mentor Angie Roles Rusty native range Rusty invasive range Species # of Species Standard Number of present deviation sites rusty 42
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Rusty native range Rusty invasive range
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p= .0483
10 20 30 40 50 60 rusty sanborn
# species present
- Macroinvert. species richness 1998
rusty sanborn
Species # of Species present Standard deviation Number of sites rusty 42 11.83 8 sanborn 51.3 5.1 9
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p=.5796
10 20 30 40 50 60 rusty sanborn
# species present
- Macroinvert. species richness 2002
rusty sanborn
Species # of Species present Standard deviation Number of sites rusty 50 3.46 3 sanborn 43.2 19.6 9
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Present only at sanborn sites Present only at rusty sites Species % of san. sites present at Erpobdella punctata (leech) 38.9 Optioservus (riffle beetles) 38.9 Parametriocnemus (midges) 33.3 Chrysops (deer/horse flies) 50 Species % of rusty sites present at Neoperla clymene (stoneflies) 45.5 Petrophila (moths) 45.5 Telopelopia okoboji (midges) 45.5
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Snails 10 species total Mollusks 23 species total Species # of species present
- St. dev.
N rusty 1.36 1.206 11 sanborn 2.11 1.08 18
p=.0938
Species # of species present
- St. dev.
N rusty 2.45 1.206 11 sanborn 4.06 1.08 18
p=.1101
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Site 2007 2008 2009 2010 Downstream LLB 12 25 5 7 HRM 30 49 19 31 HWB n/a 73 47 48 HTR 73 80 72 86 Upstream HML n/a 100 100 100 Percent Sanborn Composition
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0.05 0.1 0.15 0.2 0.25 0.3 2007 2008 2009 2010
Sanborn % LLB
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0.1 0.2 0.3 0.4 0.5 0.6 2007 2008 2009 2010
Sanborn % HRM
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0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 2007 2008 2009 2010
Sanborn % HWB
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Thank you!!
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