Aquatic macroinvertebrate diversity of playa wetlands: The role of landscape and island biogeographic characteristics

Hall, Dianne L.; Willig, Michael R.; Moorhead, Daryl L.; Sites, Robert W.; Fish, Ernest B.; Mollhagen, Tony

doi:10.1672/0277-5212(2004)024[0077:amdopw]2.0.co;2

Cited by 81 publications

(45 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, there is no general consensus as to the extent or importance of dispersal for these organisms, which may even vary across species and habitat types (Bohonak & Jenkins, 2003). Differences in species composition among even closely spaced pools and among filling events within a pool may be attributable to random chance, or differences in life history or physiology (García et al, 1997;Graham, 2002;Hall et al, 2004;King et al, 1996;Mahoney et al, 1990;Schneider & Frost, 1996). Thus, the presence or absence of a particular temporary pond crustacean over time is likely to be due to factors other than spatial colonization and extinction.…”

Section: Introductionmentioning

confidence: 99%

“…The first is that extensive sampling programs are required to characterize temporary pond faunas. Species composition is known to change from one sampling time to another for individual pools (Graham, 2002;Mahoney et al, 1990), as time passes since the pool filled (Hall et al, 2004), and in different years (García et al, 1997). Species that are not abundant, that are present in only a few pools, or that emerge only under rare circumstances may not be detected; therefore the timing of sampling affects which species are detected.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Species richness on islands in time: variation in ephemeral pond crustacean communities in relation to habitat duration and size

Ripley

Simovich

2008

Hydrobiologia

View full text Add to dashboard Cite

Ephemeral ponds are doubly insular habitats in that they are discrete in time as well as in space. Predicting species richness based on pond size has been attempted using measures of both spatial extent and habitat duration, but habitat qualities alone only drive community composition under the speciessorting metacommunity paradigm. We tested the hypothesis that community composition in temporary ponds is driven by species sorting due to pond duration. In order to eliminate bias due to undersampling, we sampled 34 pools distributed among 3 complexes in every ponding event over a period of six years, and identified every individual for the microcrustacean taxa. Our data were consistent with most of the predictions of the species-sorting hypothesis. There was a clear pattern of difference between ponds in species richness as well as higher species richness in years with higher rainfall. The set of crustacean species that we found in the pools was highly significantly nested across the region, but not necessarily within localized groups of ponds (complexes). We also found differences in community composition among complexes. Pond depth was the best predictor of species richness when data were summarized over the whole study, but in one year with unusually high rainfall, pond area and hydroperiod were significant but depth was not. We did find some species in all ponds. It is likely that given their short development time, ponds do not differ in habitat quality for these few species. These results taken together emphasize the variability inherent in ephemeral pond ecology, with detectable differences in crustacean communities and the factors influencing them between years as well as between ponds, and at scales of meters as well as kilometers. Although our data provide further evidence that species sorting on pond permanence is an important factor structuring temporary pond crustacean communities, our assumption that dispersal is not limiting still needs to be tested.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Species richness on islands in time: variation in ephemeral pond crustacean communities in relation to habitat duration and size

Ripley

Simovich

2008

Hydrobiologia

View full text Add to dashboard Cite

show abstract

“…The principle that a large area supports more species (Arrhenius, 1921;Rosenzweig, 1995) has been put into practice in conservational planning. By assuming wetlands to be ecological islands surrounded by terrestrial habitats, the relationships among species richness and wetland size were extensively used for wetland management (Hall et al, 2004).…”

mentioning

confidence: 99%

Aquatic macrophytes in natural and managed wetlands of Rio Grande do Sul State, Southern Brazil

Rolon¹,

Homem²,

Maltchik³

2010

Acta

View full text Add to dashboard Cite

Aim: This study gathers the main results obtained from studies regarding dynamic of aquatic macrophyte community in natural and managed wetlands of Southern Brazil. We analyzed the aquatic macrophytes diversity in wetlands of Southern Brazil, the environmental factors that determine the structure of the aquatic macrophyte community in fragmented wetlands, the effects of floods on the dynamics of macrophytes, and the contributions to the rice field for the conservation of aquatic macrophytes; Methods: The information was obtained from several researches carried in several spatial scales and different wetlands types over the last 10 years in Southern Brazil; Results: The studies have reported the occurrence of approximately 250 species of aquatic macrophytes. Wetland area, habitat diversity, altitude and hydroperiod were determinant for macrophyte richness and composition in wetlands of Southern Brazil. Furthermore, flood events, long or short-term ones, are strongly associated to the structure of the aquatic macrophyte community. The rice field systems of Southern Brazil (crops and irrigation channel) shelter a representative number of species of macrophyte found at natural wetlands in this region. The agricultural practices adopted over rice cultivation cycle in the rice fields have influenced the macrophyte richness and biomass. The different hydrological management practices adopted after the harvesting period (presence or lack of water surface) did not influence the macrophyte richness and biomass, however it influenced the species composition; Conclusions: The increasing process of wetland degradation (e.g. fragmentation, flood control and rice field expansion) presents a threat to the conservation aquatic macrophyte species.Keywords: aquatic plant, diversity, conservation, Neotropical region.Resumo: Objetivo: Este estudo reúne os principais resultados obtidos em trabalhos sobre a dinâmica da comunidade de macrófitas aquáticas em áreas úmidas naturais e manejadas do sul do Brasil. Nós analisamos a diversidade de macrófitas aquáticas do sul do Brasil, os fatores ambientais que determinam a estrutura da comunidade de macrófitas aquáticas nas áreas úmidas, o efeito das inundações na dinâmica da comunidade e a contribuição dos arrozais para a conservação das macrófitas aquáticas; Métodos: As informações foram obtidas de vários trabalhos realizados em diversas escalas espaciais e diferentes tipos de áreas úmidas ao longo dos últimos 10 anos no sul do Brasil; Resultados: Os estudos têm reportado a ocorrência de aproximadamente 250 espécies de macrófitas aquáticas. O tamanho da área úmida, diversidade de habitats, altitude e hidroperíodo foram determinantes para a riqueza e a composição de espécies em áreas úmidas do sul do Brasil. Além disso, os eventos de inundação, de longa ou curta duração, estão fortemente relacionados à estrutura da comunidade de macrófitas. Os sistemas orizícolas sul do Brasil (lavouras e canais de irrigação) abrigam um número representativo de espécies de macrófitas aquáticas enco...

show abstract

“…The macroinvertebrate structure in wetlands has been associated with area and habitat heterogeneity (Oertli et al, 2002;Batzer et al, 2004;Panatta et al, 2006;Studinski and Grubbs, 2007;Stenert et al, 2008); hydroperiod (Tarr et al, 2005;Whiles and Goldowitz, 2005;Stenert and Maltchik, 2007); altitude (Oertli et al, 2002;Jacobsen, 2004); water chemistry (Heino, 2000;Batzer et al, 2004), and water depth and temperature (Zimmer et al, 2000;Hall et al, 2004;Tarr et al, 2005;Studinski and Grubbs, 2007). However, most of these surveys were developed in the North Hemisphere and Australia.…”

Section: Introductionmentioning

confidence: 99%

Responses of freshwater molluscs to environmental factors in Southern Brazil wetlands

et al. 2010

View full text Add to dashboard Cite

Freshwater molluscs play an important role in aquatic ecosystems, providing food for many fish species and vertebrates. Investigations on factors that determine mollusc species richness and distribution in wetland systems are scarce in the Neotropical region. The main goal of this study was to determine how much variation in mollusc richness and composition is explained by area, hydroperiod, altitude, water conductivity, and dominant aquatic vegetation. This survey was performed in an extensive area of a Neotropical region (~280,000 km 2 in southern Brazil), with a large number of wetland systems (111) and covering a wide gradient of altitude and wetland surface area. The mollusc richness was positively associated with wetland area and negatively associated with altitude. The richness and composition of the freshwater molluscs were similar between permanent and intermittent wetlands and it did not differ significantly between aquatic bed and emergent wetlands. The first three axes of CCA explained 16.2% of the total variation in the composition of the freshwater mollusc observed. The variation in the composition had a correlation with wetland area, altitude and water conductivity. Our results showed that the wetlands are important habitats for molluscs in southern Brazil, and that the richness and the composition of molluscs were associated with area, altitude, water conductivity and dominant vegetation.Keywords: wetland area, altitude, hydroperiod, aquatic vegetation, neotropical region. Respostas de moluscos límnicos a fatores ambientais em áreas úmidas do sul do Brasil ResumoMoluscos límnicos desempenham um papel importante em ecossistemas aquáticos, fornecendo alimento para diversos peixes e vertebrados. Investigações sobre os fatores que determinam a riqueza e a distribuição das espécies de moluscos em áreas úmidas são escassos na região neotropical. O principal objetivo deste estudo foi determinar a variação na riqueza e na composição de moluscos em função da área, hidroperíodo, altitude, condutividade da água e tipo de vegetação aquática dominante. Este estudo foi desenvolvido em uma extensa área Neotropical (~280.000 km 2 no sul do Brasil), com um elevado número de áreas úmidas (111) e compreendeu um amplo gradiente de altitude e tamanho de áreas úmidas. A riqueza de moluscos foi positivamente relacionada com o tamanho da área úmida e negativamente relacionada com a altitude. A riqueza e a composição de moluscos foram similares entre áreas úmidas permanentes e intermitentes e não diferiram significativamente entre áreas úmidas herbáceas e emergentes. Os três primeiros eixos da CCA explicaram 16,2% da variação na composição de moluscos. A variação na composição foi correlacionada com a área, altitude e condutividade da água. Nossos resultados mostraram que as áreas úmidas são ecossistemas importantes para os moluscos límnicos no sul do Brasil e que a riqueza e a composição de moluscos estiveram relacionadas à área, altitude, condutividade da água e tipo de vegetação aquática dominante.Palavras-cha...

show abstract

Aquatic macroinvertebrate diversity of playa wetlands: The role of landscape and island biogeographic characteristics

Cited by 81 publications

References 63 publications

Species richness on islands in time: variation in ephemeral pond crustacean communities in relation to habitat duration and size

Species richness on islands in time: variation in ephemeral pond crustacean communities in relation to habitat duration and size

Aquatic macrophytes in natural and managed wetlands of Rio Grande do Sul State, Southern Brazil

Responses of freshwater molluscs to environmental factors in Southern Brazil wetlands

Contact Info

Product

Resources

About