Dispersal mode and flooding regime as drivers of benthic metacommunity structure in a Neotropical floodplain

Petsch, Danielle Katharine; Pinha, Gisele Daiane; Takeda, Alice Michiyo

doi:10.1007/s10750-016-2993-2

Cited by 24 publications

(22 citation statements)

References 39 publications

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“…We found high individual (Backenbury, 2000). The winged stages (adults) present low dispersion, making nearby aquatic habitats a spawning site (Petsch et al, 2017), which is why pupae also be- According to our predictions, M. forestii should have exhibited higher values of individual specialisation in its diet in stands with intermediate macrophyte biomass, probably due to the high availability of resources in these habitats, compared with low biomass stands, and the low restriction of swimming movements compared to high biomass stands (Kovalenko et al, 2012;Thomaz & Cunha, 2010).…”

Section: Discussionmentioning

confidence: 73%

Habitat complexity and individual variation in diet and morphology of a fish species associated with macrophytes

Cardozo

Quirino

Yofukuji

et al. 2020

Ecology of Freshwater Fish

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Section: Discussionmentioning

confidence: 73%

Habitat complexity and individual variation in diet and morphology of a fish species associated with macrophytes

Cardozo

Quirino

Yofukuji

et al. 2020

Ecology of Freshwater Fish

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“…Simões et al ., 2013) and dispersal limitation may be more important during the dry phase (e.g. Petsch, Pinha, & Takeda, 2016). This is because the local communities become continuously more and more disconnected from the riverine systems with extended dry periods, which affects the assembly mechanisms of local communities (e.g.…”

Section: Lakes As Waterscapes Underlying the Movement Of Organisms Anmentioning

confidence: 99%

Lakes in the era of global change: moving beyond single‐lake thinking in maintaining biodiversity and ecosystem services

et al. 2020

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The Anthropocene presents formidable threats to freshwater ecosystems. Lakes are especially vulnerable and important at the same time. They cover only a small area worldwide but harbour high levels of biodiversity and contribute disproportionately to ecosystem services. Lakes differ with respect to their general type (e.g. land‐locked, drainage, floodplain and large lakes) and position in the landscape (e.g. highland versus lowland lakes), which contribute to the dynamics of these systems. Lakes should be generally viewed as ‘meta‐systems’, whereby biodiversity is strongly affected by species dispersal, and ecosystem dynamics are contributed by the flow of matter and substances among locations in a broader waterscape context. Lake connectivity in the waterscape and position in the landscape determine the degree to which a lake is prone to invasion by non‐native species and accumulation of harmful substances. Highly connected lakes low in the landscape accumulate nutrients and pollutants originating from ecosystems higher in the landscape. The monitoring and restoration of lake biodiversity and ecosystem services should consider the fact that a high degree of dynamism is present at local, regional and global scales. However, local and regional monitoring may be plagued by the unpredictability of ecological phenomena, hindering adaptive management of lakes. Although monitoring data are increasingly becoming available to study responses of lakes to global change, we still lack suitable integration of models for entire waterscapes. Research across disciplinary boundaries is needed to address the challenges that lakes face in the Anthropocene because they may play an increasingly important role in harbouring unique aquatic biota as well as providing ecosystem goods and services in the future.

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“…Flood events can also cause organisms to drift between waters that are otherwise spatially isolated. This dispersal mode is relevant for several aquatic taxa, including zooplankton (Dias et al, 2016), macrobenthos (Petsch et al, 2017) and macrophytes (Akasaka & Takamura, 2012), and can markedly influence their local species composition. The spread of nematodes through flooding has not been reported so far but is likely.…”

Section: Driftingmentioning

confidence: 99%

The ability to get everywhere: dispersal modes of free-living, aquatic nematodes

Ptatscheck

Traunspurger

2020

Hydrobiologia

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Nematodes colonize almost all aquatic habitats worldwide. Despite their small size, restricted locomotion and lack of pelagic larvae, they can reach even isolated habitats within a short time. In this review, we examine the underlying dispersal modes, considering their active movement in substrates and water, their drift by water and wind, rafting, zoochory as well as human-mediated vectors. These modes are limited by morphology and habitat structure, ecological factors and especially by hydrodynamics. Active dispersal is effective over short distances, but with increasing water-flow velocity, passive dispersal modes, which enable long-range transfer, become important. In fact, the transport of nematodes over thousands of kilometers via ship water tanks and by hitchhiking on sea turtles has been documented. Overland dispersal vectors include wind and birds whereas rafting enables an aggregated distribution because food is available, and reproduction is possible onboard the rafts. The diversity of possible dispersal modes is high and offers a reasonably chance for gravid females or groups of nematodes to be transferred even to remote environments. Their immigration is continuous, and supported by their rapid, parthenogenetic reproduction, nematodes are effective pioneers with the ability to (re)colonize new or disturbed habitats or rebalance already existing communities.

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Dispersal mode and flooding regime as drivers of benthic metacommunity structure in a Neotropical floodplain

Cited by 24 publications

References 39 publications

Habitat complexity and individual variation in diet and morphology of a fish species associated with macrophytes

Habitat complexity and individual variation in diet and morphology of a fish species associated with macrophytes

Lakes in the era of global change: moving beyond single‐lake thinking in maintaining biodiversity and ecosystem services

The ability to get everywhere: dispersal modes of free-living, aquatic nematodes

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