Chironomid species richness of a permanent and a temporary Mediterranean stream: a long-term comparative study

Casas, J. Jesús; Langton, Peter H.

doi:10.1899/07-115.1

Cited by 11 publications

(11 citation statements)

References 43 publications

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“…Taxa richness in Costa Rica was similar between intermittent and perennial streams during the wet season as also noted in southeastern (Feminella, 1996) and northeastern United States (Santos and Stevenson, 2011), Australia (Clarke et al, 2010) and Spain (Casas, 2008), increased positively in intermittent streams upon rewetting relative to both duration of the flow period (Boulton and Lake, 1992;Clarke et al, 2010) and decreased discharge variability (Uys and O'Keeffe, 1997;Smith et al, 2003).…”

Section: Benthic Invertebratessupporting

confidence: 67%

“…Water mites (Hydracarina), oligochaetes, beetles and, especially, dipterans (chironomids, ceratopogonids and tipulids) are often dominant pioneer taxa after rewetting of streams (Stanley et al, 1994;Paltridge et al, 1997;Uys and O'Keeffe, 1997;Lake, 2003;Acuna et al, 2005;Stubbington et al, 2009;Clarke et al, 2010). Chironomids are especially adept at inhabiting stream systems with extreme hydrological variability and habitat disturbance (Aguiar et al, 2002;Wood et al, 2005), and as noted here and elsewhere (Casas, 2008;Clarke et al, 2010), the subfamily Orthocladiinae appears extremely adept at reaching dominance initially after stream rewetting, but its importance quickly declines as the wet season progresses.…”

Section: Benthic Invertebratesmentioning

confidence: 78%

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Comparison of macroinvertebrate communities of intermittent and perennial streams in the dry forest of Guanacaste, Costa Rica

2015

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The 7 m-wide Canal Oeste passes over a series of first-order, intermittent streams on hillsides on its way to irrigate the lowlands of Guanacaste, Costa Rica. Streams passing under lined portions of the canal have maintained intermittent flow, while those under unlined portions of the canal have become perennial, thus providing a unique opportunity to examine the impact of drastically altered hydrology on macroinvertebrate communities of dry forest streams. Macroinvertebrates were studied from the end of the dry season through a wet season. Macroinvertebrate recolonization of intermittent streams at the beginning of the wet season was rapid, led by small bodied taxa such as chironomids and oligochaetes with short life cycles and/or great tolerance for low oxygen and spates. As additional, less tolerant taxa arrived, most likely aerially from adjacent perennial streams, the fauna of intermittent streams progressively became similar to that of perennial streams of the area within 3-4 months of rewetting. The great resilience of the macroinvertebrate community is clearly demonstrated by its ability to adjust with few modifications to a complete switch from intermittent to perennial hydroperiod.

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Section: Benthic Invertebratessupporting

confidence: 67%

Section: Benthic Invertebratesmentioning

confidence: 78%

Comparison of macroinvertebrate communities of intermittent and perennial streams in the dry forest of Guanacaste, Costa Rica

2015

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“…Perennial streams typically maintain distinct communities (Williams and Hynes 1976;Wiggins et al 1980;Wright et al 1984;Bottorff and Knight 1988;Delucchi and Peckarsky 1989) and both higher densities and species richness of macroinvertebrates compared to temporary and distinctly intermittent systems (del Rosario and Resh 2000). Casas and Langton (2008), however, found that local diversity of a species-rich chironomid communities were highly similar between a temporary and permanent stream. Similarly, both Feminella (1996) and Progar and Moldenke (2002) found only subtle differences between perennial and intermittent stream communities.…”

Section: Introductionmentioning

confidence: 99%

Influence of flow permanence on headwater macroinvertebrate communities in a Cumberland Plateau watershed, USA

Grubbs

2010

Aquat Ecol

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Forested headwater systems provide critical habitat needs for diverse macroinvertebrate faunas globally. This study compared macroinvertebrate community structure between ten temporary and perennial stream channels in a Cumberland Plateau (USA) watershed. Macroinvertebrates were sampled in winter and spring over a 2-year period. Several macroinvertebrate taxa displayed distinct abundance patterns with either increasing or decreasing stream permanence. There were no individual taxa, however, that was common or abundant in one flow regime yet absent in the other. Of the 108 taxa totally collected, only nine and eight were not obtained from the temporary and perennial channels, respectively. There were several functional differences revealed between flow regimes, namely higher densities in the perennial channels for scrapers and filtering-collectors and five of six richness variables except shredders. Overall, this study revealed taxonomic similarity of macroinvertebrate assemblages between temporary and perennial channels but also subtle downstream functional changes that are typical of forested headwater systems. This implies that the longitudinal hydrologic gradient was relatively shallow and that most taxa persist across the flow regime.

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“…The ability of Diptera larvae, especially chironomids, to colonise streams with different flow permanence has been widely noted in mainland habitats (e.g. Lindegaard 1995;Langton and Casas 1999;Casas and Langton 2008). The main hypothesis explaining the high diversity found within this group of Diptera relies on the existence of low interspecific competition (Schmid 1993) resulting from a high variety of colonisable habitats (Armitage and Blackburn 1990).…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, the ability of chironomids to colonise freshwater habitats prone to extreme hydrological variability has been widely noted (e.g. Lindegaard 1995;Langton and Casas 1999;Casas and Langton 2008). At the microhabitat scale, preferences of chironomid larvae for some abiotic factors, such as depth, current velocity or substratum composition are relatively well documented (e.g.…”

Section: Introductionmentioning

confidence: 99%

Chironomidae assemblages of temporary streams of the Mediterranean island of Majorca (Spain)

2010

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The effect of flow permanence and land use as well as the biogeography of the chironomid (Diptera) communities inhabiting temporary streams was studied in the Mediterranean island of Majorca. A total of 52 species were identified from exuviae and pupae, comprising the subfamilies Orthocladiinae (58%), Chironominae (29%) and Tanypodinae (13%). Forty-six species of chironomids were first records for the island of Majorca, seven of which had not been recorded in the Iberian Peninsula before. Most of the genera found have a Holarctic distribution and contrary to what was expected, typical Mediterranean assemblages were not recorded, nor did the chironomid communities inhabiting these streams reflect water temporality. The presence of common species characteristic of permanent running waters where more forms typical of temporary waters were expected, reflect that the streams are only dry for short periods, thus, many species may survive these episodes, either finding refuge as larvae in the damp substrata or by colonising the springs.

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Chironomid species richness of a permanent and a temporary Mediterranean stream: a long-term comparative study

Cited by 11 publications

References 43 publications

Comparison of macroinvertebrate communities of intermittent and perennial streams in the dry forest of Guanacaste, Costa Rica

Comparison of macroinvertebrate communities of intermittent and perennial streams in the dry forest of Guanacaste, Costa Rica

Influence of flow permanence on headwater macroinvertebrate communities in a Cumberland Plateau watershed, USA

Chironomidae assemblages of temporary streams of the Mediterranean island of Majorca (Spain)

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