Decomposition during autumn foliage leaf-fall in wetlands situated along a biogeochemical gradient in Pennsylvania, USA

Carrick, Hunter J.; Dananay, Kacey L.; Eckert, Rebecca A.; Price, Keith J.

doi:10.1080/02705060.2011.599994

Cited by 4 publications

(3 citation statements)

References 49 publications

(50 reference statements)

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“…Macroinvertebrate peaks followed chlorophyll a , suggesting that macroinvertebrates were partially dependent on this resource ( H 3 ; Figure ). These results suggest a link between senescence events and increased epilithic biofilm production, a common food resource for certain benthic macroinvertebrates (Cummins and Klug, ; Feminella and Hawkins, ; Steinman, ; Carrick et al ., ). Magoba and Samways () reported that aquatic macroinvertebrate taxon richness increased following large‐scale removal of invasive trees in riparian forests in Africa, suggesting that macroinvertebrate assemblages can recover post riparian invasive removal.…”

Section: Discussionmentioning

confidence: 97%

Removal of the Invasive Shrub,Lonicera Maackii, from Riparian Forests Influences Headwater Stream Biota and Ecosystem Function

et al. 2014

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Riparian forests and streams are interlinked by cross‐system subsidies and alterations of the terrestrial environment can have substantial effects on aquatic biota and ecosystem function. In the Midwestern USA, the exotic shrub Lonicera maackii (Amur honeysuckle) has successfully invaded many riparian habitats, creating near‐monocultures in some locations. This terrestrial invasion has strong potential to modify cross‐system subsidies and impact stream ecosystems. We removed L. maackii from a riparian forest to assess impacts on the aquatic environment. In August 2010, removal occurred along a 150 m stream reach, 10 m downstream of a non‐removal reach, before natural leaf senescence. Over 74 days, in‐stream leaf litter [organic matter (OM)] was collected weekly from plots located in riffles (five/reach). Benthic algal biomass, above stream canopy cover, and macroinvertebrate density were measured for 18 months. L. maackii removal was associated with decreased canopy cover and a significant increase in total in‐stream leaf OM in early autumn (P < 0.05). Removal also differentially influenced the timing and abundance of specific leaf litter genera within the stream (P < 0.05). Macroinvertebrate density was significantly higher in the removal reach, especially during autumn 1 year after removal (P = 0.0294). In both reaches, macroinvertebrate density peaks lagged behind benthic algal biomass peaks. In summary, the removal of an invasive riparian shrub influenced the timing, deposition, quality and abundance of leaf litter habitat into a headwater stream, ostensibly driving bottom‐up effects on aquatic primary producer biomass and the macroinvertebrate community. Copyright © 2014 John Wiley & Sons, Ltd.

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Section: Discussionmentioning

confidence: 97%

Removal of the Invasive Shrub,Lonicera Maackii, from Riparian Forests Influences Headwater Stream Biota and Ecosystem Function

et al. 2014

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“…This would explain the observations of Gastropoda colonizing leaf samplers in this study. However, it is also possible that these snails are scraping algae on the surface of leaves (Covich et al 1999;Lombardo and Cooke 2002;Hoffmann 2005;Carrick et al 2011). The majority of oligochaetes were observed at sites in the Savannah River with samplers at sites in the Ogeechee River collecting only few aquatic worms.…”

Section: Discussionmentioning

confidence: 99%

Comparison of a wood sampler for macroinvertebrate bioassessment of non-wadeable streams in the southeastern coastal plain

Wilbanks¹,

Mullis

Colón-Gaud

2020

Journal of Freshwater Ecology

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“…Although we did not measure it, the number of amphipods could vary seasonally or spatially not only with relative leaf abundance, but also with leaf quality. For example, Carrick et al (2011) found the amount of algae growing on leaves covaried with the abundance of gammarid amphipods. Finally, amphipod numbers are lower and individual size is greater in sections of Lake Matoaka streams occupied by fish (Wach and Chambers 2007), suggesting possible top-down regulation of amphipod abundance.…”

Section: Gammarid Amphipod Distributionmentioning

confidence: 99%

Occurrence and Distribution of the Freshwater AmphipodsGammarus pseudolimnaeusandGammarus fasciatusin Southeastern Virginia

Chambers

2013

Northeastern Naturalist

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The freshwater amphipod, Gammarus fasciatus, and a population that keys to Gammarus pseudolimnaeus are broadly sympatric in southeastern Virginia. By documenting the successful formation of pre-copulatory mate-guarding pairs between individuals collected from Virginia and New York, we confirmed the occurrence of a G. pseudolimnaeus population strongly disjunct from the previously described range in the Mississippi and St. Lawrence River drainage basins. Gammarus pseudolimnaeus appears restricted to high-quality, spring-fed streams that occur at low density across an increasingly fragmented natural landscape in Virginia. Gammarus fasciatus, however, occurs in lakes and streams of developed landscapes that typically are more degraded, and this species does not co-occur with G. pseudolimnaeus in high-quality habitat. Gammarus pseudolimnaeus reproduces year-round, with adults and juveniles of all size classes continuously present. Gammarus fasciatus reproduces primarily from February through June, at which point the adults die, and by late summer the population consists solely of immature individuals. If the two species overlapped in distribution, the smaller Gammarus fasciatus amphipods would have to compete with adult G. pseudolimnaeus for resources. We hypothesize that this competitively disadvantageous life cycle could account, in part, for the absence of G. fasciatus in high-quality streams occupied by G. pseudolimnaeus.

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Decomposition during autumn foliage leaf-fall in wetlands situated along a biogeochemical gradient in Pennsylvania, USA

Cited by 4 publications

References 49 publications

Removal of the Invasive Shrub,Lonicera Maackii, from Riparian Forests Influences Headwater Stream Biota and Ecosystem Function

Removal of the Invasive Shrub,Lonicera Maackii, from Riparian Forests Influences Headwater Stream Biota and Ecosystem Function

Comparison of a wood sampler for macroinvertebrate bioassessment of non-wadeable streams in the southeastern coastal plain

Occurrence and Distribution of the Freshwater AmphipodsGammarus pseudolimnaeusandGammarus fasciatusin Southeastern Virginia

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