Evidence for regional aeolian transport of freshwater micrometazoans in arid regions

Rivas, J. A.; Mohl, Jonathon E.; Pelt, R. Scott Van; Leung, Ming-Ying; Wallace, Robert L.; Gill, Thomas E.; Walsh, Elizabeth J.

doi:10.1002/lol2.10072

Cited by 31 publications

(43 citation statements)

References 61 publications

(128 reference statements)

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“…Sample collection was as described in Rivas et al. (). In brief, dust from windstorms (1999–2016) was collected using three standard types of passive collectors: Big Spring Number Eight (BSNE); Marble Dust Collector (MDCO); or Modified Wilson and Cooke (MWAC) (Goossens & Offer, ; Mendez, Funk, & Buschiazzo, ).…”

Section: Methodsmentioning

confidence: 99%

“… Numbers in parenthesis indicate the number of samples rehydrated from each location that were previously reported in Rivas et al. (). …”

Section: Methodsmentioning

confidence: 99%

“…Also see Rivas et al. (). (f) Synopsis of events leading to dust emission and deposition at desert surfaces.…”

Section: Introductionmentioning

confidence: 98%

“…All organisms disperse during their life cycle (Tesson et al., ), either actively or passively. For aquatic microinvertebrates (e.g., protists, gastrotrichs, rotifers, cladocerans, copepods), dispersal of their propagules is passive, and occurs via the movement of animals (zoochory), flowing water (hydrochory), and/or the wind (anemochory) (Després et al., ; Figuerola & Green, ; Fontaneto, Ficetola, Ambrosini, & Ricci, ; Incagnone, Marrone, Barone, Robba, & Naselli‐Flores, ; Ptatscheck, Gansfort, & Traunspurger, ; Rivas et al., ; Vanschoenwinkel, Gielen, Seaman, & Brendonck, ). Where active life is more or less continuous, passive dispersal is likely to be dominated by hydrochory and zoochory (Frisch & Threlkeld, ; Rogers, ; Van Leeuwen et al., ).…”

Section: Introductionmentioning

confidence: 99%

“…Winds blowing across arid lands entrain sediments in the form of dust (silts and clays < 50 μm) and sand (>50 μm) (Field et al., ), as well as the diapausing stages of microinvertebrates that when hydrated hatch into active communities (Rivas et al., ) (Figure ). Important sources of aeolian (wind‐carried) sediments emanating from arid lands include ephemeral wetlands (Bullard et al., ), such as playas (ephemeral lakes) (Mahowald, Bryant, Del Corral, & Steinberger, ) and intermittent streams (Draut & Rubin, ).…”

Section: Introductionmentioning

confidence: 99%

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Anemochory of diapausing stages of microinvertebrates in North American drylands

et al. 2019

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Dry, ephemeral, desert wetlands are major sources of windblown sediment, as well as repositories for diapausing stages (propagules) of aquatic invertebrates. Zooplankton propagules are of the same size range as sand and dust grains. They can be deflated and transported in windstorm events. This study provides evidence that dust storms aid in dispersal of microinvertebrate propagules via anemochory (aeolian transport). We monitored 91 windstorms at six sites in the southwestern U.S.A. over a 17‐year period. The primary study site was located in El Paso, Texas in the northern Chihuahuan Desert. Additional samples were collected from the Southern High Plains region. Dust carried by these events was collected and rehydrated to hatch viable propagules transported with it. Using samples collected over a 6‐year period, 21 m above the ground, which included 59 storm events, we tested the hypothesis that transport of propagules is correlated with storm intensity by monitoring meteorological conditions such as storm duration, wind direction, wind speed, and particulate matter (PM10; fine dust concentration). An air quality monitoring site located adjacent to the dust samplers provided quantitative hourly measurements. Rehydration results from all events showed that ciliates were found in 92% of the samples, rotifers in 81%, branchiopods in 29%, ostracods in 4%, nematodes in 13%, gastrotrichs in 16%, and tardigrades in 3%. Overall, four bdelloid and 11 monogonont rotifer species were identified from rehydrated windblown dust samples. Principal component analysis indicated gastrotrichs, branchiopods, nematodes, tardigrades, and monogonont rotifer occurrence positively correlated with PM10 and dust event duration. Bdelloid rotifers were correlated with amount of sediment deposited. Non‐metric multidimensional scaling showed a significant relationship between PM10 and occurrence of some taxa. Zero‐inflated, general linear models with mixed‐effects indicated significant relationships with bdelloid and nematode transport and PM10. Thus, windstorms with high PM10 concentration and long duration are more likely to transport microinvertebrate diapausing stages in drylands.

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Section: Methodsmentioning

confidence: 99%

“… Numbers in parenthesis indicate the number of samples rehydrated from each location that were previously reported in Rivas et al. (). …”

Section: Methodsmentioning

confidence: 99%

“…Also see Rivas et al. (). (f) Synopsis of events leading to dust emission and deposition at desert surfaces.…”

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Anemochory of diapausing stages of microinvertebrates in North American drylands

et al. 2019

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Rotifera

Walsh

Hochberg

Uyhelj

et al. 2021

Encyclopedia of Life Sciences

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The phylum Rotifera comprises two disparate groups. Traditionally, rotifers were viewed as a small taxon of tiny, bilaterally symmetrical, unsegmented aquatic invertebrates. However, recent molecular analyses indicate that Acanthocephala, a group of obligatorily parasitic worms, are highly modified rotifers. (They are covered separately in the ELS.) Rotifers may be found anywhere water exists for a sufficient period allowing them to reproduce including lakes and ponds, ephemeral pools, water films coating terrestrial mosses and soil particles and brackish and coastal marine waters. Few are parasitic. In some habitats, rotifers may achieve high population densities (>1000 individuals per litre). Being consumers of bacteria, algae, protists and other rotifers, they are important in transferring energy to higher trophic levels. Because they serve as food for young fishes and are easily cultured, rotifers are grown in mass quantities for commercial aquaculture. They also serve as models for research on ageing, evolution of sex and ecotoxicology. Key Concepts Rotifers live in fresh and saline continental waters, in the moisture covering some plants such as mosses, in damp soils and in the interstitial spaces of aquatic sediments. Although not as abundant as in inland waters, rotifers often flourish in nearshore marine waters and estuaries. A few species live a parasitic life within the cytoplasm of certain large freshwater algae and the guts of freshwater, aquatic oligochaetes. Some rotifer populations crash when they become infected with parasitic fungi or microsporozoan parasites. Feeding mainly on other microscopic organisms, including bacteria, algae, protists and other rotifers, these small metazoans are important basal consumers in aquatic systems. They are a component of the microbial loop in which nutrients cycle and energy flows within the lower trophic levels. When consumed by higher trophic levels (e.g. aquatic arthropods and fishes) rotifers play an important role connecting the microbial loop to the classic food web. Rotifers possess several interesting features. The cell membranes between the cells of certain tissues in rotifers fuse, thereby forming a cytoplasmic syncytium. The body wall contains proteins that are only shared with one other group of invertebrates, the Acanthocephala. Many rotifers are capable of undergoing dormancy in a resting state that allows them to avoid harsh conditions. Rotifers are a first food for the larvae of many organisms; thus, they have been exploited by aquaculturists to maintain commercially important fishes, crabs and shrimps. Also, because rotifers are comparatively easy to culture and possess relatively short life spans, they are used in ageing studies and to assess the toxicity of heavy metals, pesticides, pharmaceuticals and other pollutants. Some species have specific ecological requirements making them useful as indicators of water quality. Being one of the few taxa capable of cyclical parthenogenesis, rotifers are also used as models for the study of the evolution of sex. The phylogenetic position of Rotifera has not been fully resolved, but they appear to be related to a group of small, jawed metazoans called the Gnathifera. Emerging molecular evidence indicates that the phylum Acanthocephala — a taxon of worm‐like parasites — should be considered to be highly modified rotifers (Witek et al ., 2009).

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Genetic differentiation and phylogeography of rotifer Polyarthra dolichoptera and P. vulgaris populations between Southeastern China and eastern North America: High intercontinental differences

Liang

McManus

Wang

et al. 2022

Ecology and Evolution

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Genetic differentiations and phylogeographical patterns of small organisms may be shaped by spatial isolation, environmental gradients, and gene flow. However, knowledge about genetic differentiation of rotifers at the intercontinental scale is still limited. Polyarthra dolichoptera and P . vulgaris are cosmopolitan rotifers that are tolerant to environmental changes, offering an excellent model to address the research gap. Here, we investigated the populations in Southeastern China and eastern North America and evaluated the phylogeographical patterns from their geographical range sizes, geographic–genetic distance relationships and their responses to spatial‐environmental factors. Using the mitochondrial cytochrome c oxidase subunit I gene as the DNA marker, we analyzed a total of 170 individuals. Our results showed that some putative cryptic species, also known as entities were widely distributed, but most of them were limited to single areas. The divergence of P . dolichoptera and P . vulgaris indicated that gene flow between continents was limited while that within each continent was stronger. Oceanographic barriers do affect the phylogeographic pattern of rotifers in continental waters and serve to maintain genetic diversity in nature. The genetic distance of P . dolichoptera and P . vulgaris populations showed significant positive correlation with geographic distance. This might be due to the combined effects of habitat heterogeneity, long‐distance colonization, and oceanographic barriers. Furthermore, at the intercontinental scale, spatial distance had a stronger influence than environmental variables on the genetic differentiations of both populations. Wind‐ and animal‐mediated transport and even historical events of continental plate tectonics are potential factors for phylogeography of cosmopolitan rotifers.

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Evidence for regional aeolian transport of freshwater micrometazoans in arid regions

Cited by 31 publications

References 61 publications

Anemochory of diapausing stages of microinvertebrates in North American drylands

Anemochory of diapausing stages of microinvertebrates in North American drylands

Rotifera

Genetic differentiation and phylogeography of rotifer Polyarthra dolichoptera and P. vulgaris populations between Southeastern China and eastern North America: High intercontinental differences

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