Species richness in streams: Patterns over time, with stream size and with latitude

Lake, P. S.; Schreiber, E. S. G.; Milne, B. J.; Pearson, R. G.

doi:10.1080/03680770.1992.11900499

Cited by 22 publications

(27 citation statements)

References 11 publications

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“…Therefore, frog diversity is not particularly high at the local site level, but moving from site to site greatly increases the cumulative number of species. This parallels the higher stone-to-stone accumulation of invertebrate species in the tropics compared to temperate streams (Lake et al, 1994). Overall, these studies indicate regionally high biodiversity but not necessarily local maxima in tropical streams.…”

Section: Latitudinal Gradients In Regional Diversity In Streamsmentioning

confidence: 56%

See 1 more Smart Citation

Are Tropical Streams Ecologically Different from Temperate Streams?

Boulton¹,

Boyero

Covich

et al. 2008

Tropical Stream Ecology

149

124

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Section: Latitudinal Gradients In Regional Diversity In Streamsmentioning

confidence: 56%

“…cumulative species by stones) was achieved at a greater number of stones, and therefore species, in the tropics (Lake et at., 1994).…”

Section: B Latitudinal Gradients In Local Diversity In Streamsmentioning

confidence: 99%

Are Tropical Streams Ecologically Different from Temperate Streams?

Boulton¹,

Boyero

Covich

et al. 2008

Tropical Stream Ecology

149

124

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“…However, at least 13-18 stones or 750-1550 individuals are required to obtain reliable autosimilarity estimations for relative abundance data. Melo and Froehlich (2001b) sampled 25 stones to assess macroinvertebrate richness in Brazilian tropical streams, and Lake et al (1994) collected 28 stones with the purpose of comparing species richness in Australian temperate and tropical streams.…”

Section: Discussionmentioning

confidence: 99%

Reliable sample sizes for estimating similarity among macroinvertebrate assemblages in tropical streams

Schneck

Melo

2010

Ann. Limnol. - Int. J. Lim.

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-Studies in tropical streams are relatively few, and one of the still-unresolved methodological issues is sample size. Adequate sample size for temperate streams cannot be extrapolated for tropical sites, because of the differences in species richness and the proportions of rare species. We evaluated reliable sample size for estimation of resemblance among samples of macroinvertebrate assemblages inhabiting riffles of tropical streams, using the autosimilarity approach. Sample sizes were much larger than those currently employed in tropical studies. Sampling units consisted of individuals associated with single stones (15-20 cm). Evaluations employed the Bray-Curtis index for abundance data and the equivalent Sorensen index for presence-absence data. Autosimilarity curves were constructed using both sampling units and individuals. The estimation of resemblance among samples was strongly dependent upon sample size at reduced sampling effort, particularly for the Bray-Curtis index. For the same sampling effort, fixed counts of individuals obtained randomly from sampling units gave better estimations of resemblance, and their similarity curves tended to stabilize earlier than those using sampling units. A minimum of 9-15 sampling units (stones) or 150-850 individuals is necessary for adequate estimations of resemblance using presence-absence data, and 13-18 sampling units or 750-1550 individuals are required for relative abundance data in tropical streams.

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“…Correspondingly, the QWT is Australia's most biodiverse region and supports a high proportion of the continent's plant and animal species, including aquatic plants (Ramsay andCairns 2004, MacKay et al 2010), stream invertebrates (Pearson et al 1986, Lake et al 1994, Connolly et al 2008, and freshwater fishes ). Research on biodiversity has included inventory, taxonomy, phylogenetics, and questions regarding the factors that have created and sustained it (Fig.…”

Section: Biodiversity Ecology Evolution Biodiversity Of Qwt Streamsmentioning

confidence: 98%

“…In the QWT, maximum species density per stone occurs with a moderate number of individuals, suggesting that competition for space at greater densities causes local elimination of some species (Pearson 2005). Species density is similar in QWT and temperate Victorian streams, but species accumulation continues over a greater number of stones in the tropics (Lake et al 1994). Nestedness analysis showed that the species pool was randomly sampled from stones according to relative abundance of the fauna, and that this relationship held across seasons and sites (Pearson 2005).…”

Section: Habitatsmentioning

confidence: 99%

Ecology of streams in a biogeographic isolate—the Queensland Wet Tropics, Australia

2015

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Global studies of streams are needed to develop general ecosystem and management models. We reviewed research that tested ecological models in streams of the Queensland Wet Tropics bioregion (QWT), which makes up 0.26% of Australia but supports distinctive and high biodiversity, most of which is of Gondwanan or marine origin. QWT streams have seasonal but perennial flow, high insolation, and higher diversity of riparian vegetation, invertebrates, and fish than temperate streams. Consistent physical conditions sustain biological processes through the year, and predictable wet seasons, but unpredictable floods, have shaped a resilient and opportunistic biota. Stream food webs are dominated by predators, and prey turnover is rapid. Small streams are heterotrophic and become autotrophic as canopies open in larger streams. Predation and competition influence assemblage composition most in the dry season, when habitats contract and densities increase. Riparian clearing, weed invasion, and agricultural contamination affect table lands and floodplains. High temperatures exacerbate weed growth and eutrophication, but contaminants may be diluted by high flows from forested catchments. Climate change probably will cause warming and greater hydrological seasonality, threatening endemic species. The biophysical characteristics of QWT streams are found elsewhere in the tropics, but the species pool is not. QWT streams are important because of their insular and remnant nature. Patterns and processes can differ between QWT and comparable temperate systems because of biogeographic and biophysical characteristics and their interactions with anthropogenic effects, exacerbated by the tropical climate. Research in the QWT both affirms and contradicts theories of stream ecology, underpins conservation and management needs of tropical streams, and provides points of reference for comparative studies in stream ecology, conservation, and management.

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Species richness in streams: Patterns over time, with stream size and with latitude

Cited by 22 publications

References 11 publications

Are Tropical Streams Ecologically Different from Temperate Streams?

Are Tropical Streams Ecologically Different from Temperate Streams?

Reliable sample sizes for estimating similarity among macroinvertebrate assemblages in tropical streams

Ecology of streams in a biogeographic isolate—the Queensland Wet Tropics, Australia

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