Stream Order and Species Diversity of Fishes in an Intermittent Oklahoma Stream

Abstract

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Empirical Relationships between Species Richness, Evenness, and Proportional Diversity

“…Finally, Patrick (1968) reported the diversity of freshwater diatom communities measured over 2 yr; all her species counts were 1100 (diversity variation within a community and over time). If the species number was !50 (Harrel et al 1967;Loya 1972), slopes of the relationships between and log S H 2 were not significantly different from the null model, which is unlike the results obtained from the literature-compiled data set. However, when species numbers were 1100, the slopes were negative ( fig.…”

“…Slopes of relationships between and were highly J H significant (table 4) and crossed the expected line in the two studies having lower species numbers (Harrel et al 1967: ;Loya 1972: H p Ϫ0.14 ϩ 3.3 # J Hp 0.82 ϩ 3.8 # ). Studies with higher species numbers had regressions J with slopes similar to the null model but with significantly higher intercepts (Karr 1971: ; Pat-H p Ϫ1.3 ϩ 8.9 # J rick 1968:…”

Variation with Stream Order in Species Composition, Diversity, Biomass, and Chlorophyll of Periphyton in Otter Creek, Oklahoma

“…In earlier studies on the basin benthic macroinvertebrate and fish species tended to increase with order, these trends were attributed to physiographic succession (Harrel et al 1967, Harrel and.…”

“…Species diversity of fish has been shown to increase with increasing stream order (Kuehne 1962, Harrel, et al 1967, Whiteside and McNatt 1972, Lotrich 1973. Increases in fish diversity have been attributed to greater abundance and variety of food (Lotrich 1973), increases in habitat, and decreases in environmental harshness in higher stream orders (Harrel, et al 1967).…”

Assessment of fish assemblages in streams of different orders in the Upper Paraná River basin, Central Brazil

“…Studies about this influence indicate that increasing stream order results in the increased richness (whiteside & Mcnatt, 1972;Platts, 1979;osborne & wiley, 1992;ibañez et al, 2009), abundance (sMith & KraFt, 2005 and diversity (harrel et al, 1967;GorMan & Karr, 1978) of fish assemblage in temperate and tropical streams. This trend is attributed to i) addition and/or replacement of species (beecher et al, 1988) brought about by changes in the abiotic characteristics of stream (sMith & KraFt, 2005), which tend to increase the complexity of the aquatic habitat represented, for example, by stream depth and width, bottom type and current (GorMan & Karr, 1978;Platts, 1979); ii) shorter distance to downstream source population; iii) reduced barriers to migration from downstream locations; iv) more stable habitats downstream (wineMiller et al, 2008).…”