Seasonal Abundance of Aquatic Diptera in Two Oligohaline Tidal Marshes in Mississippi

LaSalle, Mark W.; Bishop, T. Dale

doi:10.2307/1351888

Cited by 17 publications

(8 citation statements)

References 45 publications

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“…Although tidal location can clearly influence marsh macro-invertebrate abundance and species composition (e.g. LaSalle & Bishop 1987, Lin 1999), we did not detect a strong influence of tidal height/distance into the marsh on macrofaunal densities over the ranges examined here, as evidenced by high-versus low-marsh comparisons. Whaley & Minello (2002) suggested that factors affecting predator access, such as distance into a marsh for their Gulf of Mexico marshes, may have greater affects on infaunal abundances over small elevational gradients.…”

Section: Discussioncontrasting

confidence: 83%

“…Replacement of Spartina by Phragmites has led to concerns about shifts in habitat quality, since faunal patterns may vary with changes in vegetation type (LaSalle & Bishop 1987, Posey et al 1997, Talley & Levin 1999. Phragmites stands present a different physical structure than Spartina, with larger but less dense stands of stems and a lower relative belowground biomass (Meyerson et al 2000, Windham 2001).…”

Section: Introductionmentioning

confidence: 99%

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Benthic communities of common reed Phragmites australis and marsh cordgrass Spartina alterniflora marshes in Chesapeake Bay

Posey¹,

Alphin²,

Meyer³

et al. 2003

Mar. Ecol. Prog. Ser.

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Invasive species are receiving increased attention both for their direct effects, including competitive displacement and predator-prey interactions, and indirect effects involving ecosystem and habitat alterations. The common reed Phragmites australis is spreading along much of the Atlantic and Gulf coasts of the USA. Its spread is particularly apparent in disturbed oligohaline to mesohaline areas, where it may displace the marsh cordgrass Spartina alterniflora. Because of the different morphologies of these plants, associated sediment effects, and differences in biogeochemical cycling, there is the potential for significant faunal community changes where macrophyte species replacement occurs. We conducted a study in the mesohaline region of Chesapeake Bay to examine differences between benthic communities associated with S. alterniflora and P. australis marshes. Paired P. australis and S. alterniflora marshes were sampled at 4 sites in summer and 2 sites in fall, blocking for tidal height (high marsh versus low marsh) and small-scale topographic features (rivulet and hummock areas in each marsh type). Sediment grain size did not differ between marsh types, and percent organics differed only for P. australis hummock sites compared to other habitat types. Benthic microalgal biomass also did not differ among marsh types. There was only a small effect on faunal abundance patterns, with most species exhibiting slightly higher mean density in Spartina compared to adjacent Phragmites marshes. Much stronger differences in faunal density were observed between hummocks and adjacent rivulets within each marsh type. While macrophyte type had a detectable effect, local microhabitat characteristics had a stronger relation to local faunal abundance patterns. Since such microhabitat characteristics may covary with macrophyte type (although they did not do so in this study), care must be taken in the design and interpretation of comparative marsh studies and more emphasis should be given to including relations of small-scale topographic features with faunal characteristics. In this system and on the scale studied here, macrophyte replacement did not strongly affect the benthic infaunal community.

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Section: Discussioncontrasting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Benthic communities of common reed Phragmites australis and marsh cordgrass Spartina alterniflora marshes in Chesapeake Bay

Posey¹,

Alphin²,

Meyer³

et al. 2003

Mar. Ecol. Prog. Ser.

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“…Late season damages in wheat cultivations are also, not reported [1], (Department of Agriculture, personal communication). In these conditions of low pest populations, it is expected that year to year fluctuations may vary according to natural enemies' presence in the specific environment of the experimentation area [2,[15][16][17][18], although it seems that climatic conditions had more significant impact on population fluctuations. We may safely conclude that this species (C. pumilionis) is not an important enemy of wheat in the region of Western Macedonia.…”

Section: Discussionmentioning

confidence: 99%

Four Common Insects of Durum Wheat Cultivations in Western Macedonia, Greece

Deligeorgidis

et al. 2012

ISRN Agronomy

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The purpose of this study was to monitor population fluctuations of various species of Diptera during the growing season of durum wheat, in years 2009 and 2010. The most abundant Hymenoptera species was also included in the study as a control species. The species studied were Cephus pygmaeus, Haplodiplosis marginata, Mayetiola destructor, and Chlorops pumilionis. Samplings of insects were taken in eight periods to cover the late stages of durum wheat. Measurements were made every about 100 m in the field, with five wheat plants per sample, from 10 different places. Total insect individuals on each wheat plant were counted. Maximum number of individuals per plant reached 6-7 insects, except for C. pumilionis which showed only 3-5 individuals. Year X sampling period interaction was also found in some cases, indicating different populations' fluctuations across years. The relatively low populations found in our study may indicate low level of danger on crop production, but the unstable populations of the most multitudinous insect species H. marginata and C. pygmaeus may cover a possible danger, especially for species H. marginata which, in specific years, can be found in great numbers causing severe damages on wheat crops. Combination of pests may result in significant damages and a total recording procedure must be practiced.

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“…Such studies are not only critical in designing effective reserve systems for potential ecosystem restoration, but also necessary in many conservation and ecological studies [6,7]. Together with annelids, mollusks, and crustaceans, terrestrial arthropods are critical ecosystem components due to their high diversity and sensitivity to perturbations [8]. Within Louisiana coastal ecosystems, terrestrial arthropods represent a major component of multicellular biodiversity with dominating roles of representatives of Hemiptera and Diptera [9].…”

Section: Introductionmentioning

confidence: 99%

An Annotated List of Auchenorrhyncha and Heteroptera Collected in the Coastal Salt Marshes of the Mississippi Delta in Louisiana

Sokolov¹,

Chen²,

Strecker³

et al. 2018

Psyche: A Journal of Entomology

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Insects that live in the saltwater and brackish marshes, which fringe the northern coast of the Gulf of Mexico, are largely unstudied. During 2011-2013, a survey of insect fauna of the coastal salt marshes of the Mississippi Delta in Louisiana was conducted. We present the species of terrestrial representatives of Heteroptera and Auchenorrhyncha collected during that study. The Auchenorrhyncha are represented by 33 species in 6 families, with Cicadellidae (16 species) and Delphacidae (13 spp.), and are the most diverse. The terrestrial heteropterans are represented by 11 species in 5 families with the majority of species in Miridae (6 spp.). A list of species, annotated with numbers of specimens collected, ranges of collection dates (seasonality), and published information on their hosts, habitats, and ranges, is presented. Of 44 identified species, ten species (22.7%) are reported from Louisiana for the first time. The paper provides evidence of a diverse terrestrial arthropod community in brackish marshes; a community that is largely understudied.

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Seasonal Abundance of Aquatic Diptera in Two Oligohaline Tidal Marshes in Mississippi

Cited by 17 publications

References 45 publications

Benthic communities of common reed Phragmites australis and marsh cordgrass Spartina alterniflora marshes in Chesapeake Bay

Benthic communities of common reed Phragmites australis and marsh cordgrass Spartina alterniflora marshes in Chesapeake Bay

Four Common Insects of Durum Wheat Cultivations in Western Macedonia, Greece

An Annotated List of Auchenorrhyncha and Heteroptera Collected in the Coastal Salt Marshes of the Mississippi Delta in Louisiana

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