Ecological Archives A016-059-A1

Michael A. Chadwick, Dean R. Dobberfuhl, Arthur C. Benke, Alexander D. Huryn, Keller Suberkropp, and John E. Thiele. 2006. Urbanization affects stream ecosystem function by altering hydrology, chemistry, and biotic richness. Ecological Applications 16:1796–1807.

Appendix A. Taxa that comprise >5% of average litter bag biomass. FFG = functional feeding group, CG = collector-gatherer, FL = filterer, PR = predator, S = snail, SH = shredder. Sites are ordered from lowest to highest %TIA.

		Red maple			Sweetgum
Site	FFG	Taxa	Biomass (%)	FFG	Taxa	Biomass (%)
27	CG	Orthocladiinae	44	SH	Caecidotea	65
	CG	Chironomini	28	SH	Hyalella	10
	SH	Caecidotea	16	CG	Chironomini	9
	CG	Oligochaeta	7	PR	Tabanus	7
				CG	Oligochaeta	5

26	SH	Caecidotea	61	SH	Caecidotea	58
	CG	Chironomini	11	CG	Chironomini	17
	CG	Oligochaeta	6	CG	Oligochaeta	7
	S	Micromenetus	6	FL	Corbicula	6
				PR	Enallagma	5

19	SH	Hyalella	44	CG	Oligochaeta	65
	CG	Orthocladiinae	24	SH	Hyalella	25
	S	Laevapex diaphanous	14
	CG	Chironomini	5

13	CG	Diamesini	45	S	Melanoides	82
	SH	Hyalella	14	PR	Argia	11
	PR	Argia	10
	S	Haitia	10
	S	Pseudosuccinea	10

29	S	Haitia	43	PR	Hetaerina	40
	CG	Tanytarsini	11	CG	Tanytarsini	14
	PR	Tanypodinae	11	S	Micromenetus	10
	CG	Orthocladiinae	9	CG	Orthocladiinae	8
	CG	Oligochaeta	6	PR	Tanypodinae	8
	PR	Probezzia	6	CG	Chironomini	5

20	PR	Argia	37	SH	Procambarus	43
	CG	Tanytarsini	20	CG	Tanytarsini	13
	CG	Orthocladiinae	20	PR	Macrobdella diterta	13
	PR	Tanypodinae	11	PR	Tanypodinae	6
	FL	Cheumatopsyche	5	S	Haitia	5
				PR	Enallagma	5

23	S	Haitia	45	S	Haitia	28
	CG	Tanytarsini	26	CG	Tanytarsini	25
	PR	Tanypodinae	9	PR	Tanypodinae	19
	CG	Orthocladiinae	7	CG	Orthocladiinae	10
	S	Micromenetus	5	PR	Turbellaria	8
				S	Micromenetus	7

12	PR	Macrobdella diterta	43	S	Hydrobiidae B	27
	S	Haitia	12	PR	Argia	16
	S	Hydrobiidae A	8	PR	Gloiobdella elongate	12
	S	Hydrobiidae S	8	PR	Probezzia	8
	PR	Gloiobdella elongate	6	CG	Orthocladiinae	7
	CG	Orthocladiinae	5	FL	Corbicula	5
	CG	Chironomini	5	PR	Tanypodinae	5
				CG	Tantarsini	5

7	SH	Hyalella	30	PR	Belostoma	44
	CG	Chironomini	24	SH	Hyalella	32
	CG	Oligochaeta	19	SH	Tipula	10
	S	Hebetancylus	13
	CG	Orthocladiinae	7

5	SH	Caecidotea	22	PR	Enallagma	33
	S	Hydrobiidae A	19	SH	Hyalella	17
	SH	Hyalella	10	S	Hydrobiidae A	15
	PR	Argia	9	S	Physella	11
	S	Hydrobiidae B	8	CG	Tanytarsini	7
	PR	Hirudinea	7	S	Haitia	7
	CG	Tanytarsini	7
	PR	Enallagma	5

6	CG	Oligochaeta	75	CG	Oligochaeta	98
	SH	Tipula	16
	SH	Hyalella	6

17	CG	Oligochaeta	84	PR	Tabanus	61
	SH	Hyalella	8	CG	Tanytarsini	13
				CG	Othocladiinae	6
				PR	Tanypodinae	5

16	S	Hydrobiidae A	38	S	Hydrobiidae A	43
	S	Hydrobiidae B	24	S	Hydrobiidae S	28
	S	Hydrobiidae S	14	S	Hydrobiidae B	7
	CG	Oligochaeta	7
	SH	Caecidotea	5

11	SH	Procambarus	81	SH	Procambarus	66
	PR	Argia	5	PR	Argia	13
				SH	Hyallea	11

10	FL	Corbicula	42	S	Pomacea	40
	SH	Hyalella	30	FL	Corbicula	21
	S	Haitia	10	S	Planorbella	17
	S	Hebetancylus	6	SH	Hyalella	10

8	SH	Gammarus	60	SH	Gammarus	48
	PR	Argia	15	S	Haitia	16
	PR	Tanypodinae	5	PR	Erpobdella punctata	11
	S	Haitia	5	CG	Orthocladiinae	4

2	SH	Procambarus	95	CG	Oligochaeta	26
				CG	Orthocladiinae	21
				SH	Hyalella	18
				CG	Tanytarsinis	8
				PR	Tanypodinae	6
				FL	Corbicula	5

9	S	Viviparus	51	SH	Procambarus	55
	PR	Macrobdella diterta	24	PR	Placobdella ornata	15
	SH	Hyalella	10	SH	Hyalella	13
	SH	Procambarus	7	S	Hebetancylus	5

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