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  Specimens Collected From Baker Run 4/11/00    
Order Taxon Trophic Level Number Found
Coleoptera Psephenus herricki sc 1
Coleoptera Stenelmis sp. sc, co-ga 1
Diptera Chironomidae Orthocladiinae co, ga, filter, pred 5
Diptera Heratoma spinosa   2
Diptera Pedicia albivitta   1
Diptera Prosimillium sp.   8
Ephemeroptera Ameletus ludens sc, co-ga (detritus, diatoms) 10
Ephemeroptera Epeorus namatus co, ga, sc 82
Ephemeroptera Ephemerella needhami gen. co-ga (detritus, alg) some sc, sh, pred 2
Ephemeroptera Paraleptophlebia sp. co-ga (coarse detritus, diatom) facultative sh-det 1
Ephemeroptera Siphlonuridae co-ga 2
Plecoptera Chloroperlidae sp. 1 gen. pred: sc, co-ga 18
Plecoptera Chloroperlidae sp. 2 gen. pred: sc, co-ga 8
Plecoptera Perlidae pred. (engulfers) 86
Plecoptera Pteronarcys sh-det & herb: fac pred/fac sc 1
Trichoptera Odontoceridae   1
Trichoptera Philopotamidae   1
Amphipoda Hyalella azteca   2
Annelida Oligochaeta sp.   2
       
       
  Abbreviation Key    
  gen= generally    
  sc= scrapers    
  co= collecters    
  ga= gatherers    
  sh= shredders    
  pred= predator    
  det= detritavores    
  fac= facultative    
  herb= herbivores    
All samples taken with a 1 foot by 1 foot Surber sampler.  Data represents 13 pooled samples (13 square feet).


Last Updated on 4/27/00
By Dave McShaffrey