NDLI: Macroinvertebrate community response to eutrophication in an oligotrophic wetland: An in situ mesocosm experiment

Content Provider	Springer Nature Link
Author	Liston, Shawn E. Newman, Susan Trexler, Joel C.
Copyright Year	2008
Abstract	Eutrophication from anthropogenic nutrient enrichment is a primary threat to the oligotrophic freshwater marshes of southern Florida. Macrophyte and periphyton response to increased phosphorus (P) has been well documented in both correlative and experimental studies, but the response of consumer communities remains poorly understood, especially in southern marl prairies. We conducted a P-loading experiment in in situ mesocosms in Taylor Slough, Everglades National Park, and examined the response of macroinvertebrate communities. Mesocosms at two sites were loaded weekly with P at four levels: control (0 g P/m$^{2}$/yr), low (0.2 g P/m$^{2}$/yr), intermediate (0.8 g P/m$^{2}$/yr), and high (3.2 g P/m$^{2}$/ yr). After ∼2 yrs of P-loading, macroinvertebrates were sampled using periphyton mat and benthic floc cores. Densities of macroinvertebrate taxa (no./g AFDM) were two to 16 times higher in periphyton mats than benthic floc. Periphyton biomass decreased with enrichment at one site, and periphyton was absent from many intermediate and all high P treatments at both sites. Total macroinvertebrate density in periphyton mats increased with intermediate P loads, driven primarily by chironomids and nematodes. Conversely, total macroinvertebrate density in benthic floc decreased with enrichment, driven primarily by loss of chironomids and ceratopogonids (Dasyhelea). This study suggests that macroinvertebrate density increases with enrichment until periphyton mats are lost, after which it decreases, and mat infauna fail to move into benthic substrates in response to mat loss. These results were noted at nutrient levels too low to yield anoxia, and we believe that the decrease of macroinvertebrate density resulted from a loss of habitat. This work illustrates the importance of periphyton mats as habitat for macroinvertebrates in the Everglades. This study also indicates that in this system, macroinvertebrate sampling should be designed to target periphyton mats or conducted with special attention to inclusion of substrates relative to their coverage.
Starting Page	686
Ending Page	694
Page Count	9
File Format	PDF
ISSN	02775212
Journal	Wetlands
Volume Number	28
Issue Number	3
e-ISSN	19436246
Language	English
Publisher	Springer Netherlands
Publisher Date	2008-01-01
Publisher Institution	Society of Wetland Scientists
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Benthic Chironomidae Everglades Hyalella Periphyton phosphorus Freshwater & Marine Ecology Environmental Management Ecology Hydrogeology Coastal Sciences Landscape Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Environmental Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

An in situ mesocosm method for quantifying nitrogen cycling rates in oligotrophic wetlands using $^{15}$N tracer techniques

Boundary Effects on Benthic Microbial Phosphorus Concentrations and Diatom Beta Diversity in a Hydrologically-modified, Nutrient-limited Wetland

Hydroperiod and seasonal effects on fish decomposition in an oligotrophic Everglades marsh

Macroinvertebrate community structure in high-and low-nutrient constructed wetlands

Soil phosphorus release from a restoration wetland, Upper Klamath Lake, Oregon

Calibration of modern pollen along a nutrient gradient in Everglades Water Conservation Area-2A

Landscape responses to wetland eutrophication: loss of slough habitat in the Florida Everglades, USA

Root phosphatase activity in Cladium jamaicense and Typha domingensis grown in Everglades soil at ambient and elevated phosphorus levels

Planktonic Bacterial Responses to Nutrient Amendments in Wetland Mesocosms

Macroinvertebrate community response to eutrophication in an oligotrophic wetland: An in situ mesocosm experiment

Similar Documents

An in situ mesocosm method for quantifying nitrogen cycling rates in oligotrophic wetlands using $^{15}$N tracer techniques

Boundary Effects on Benthic Microbial Phosphorus Concentrations and Diatom Beta Diversity in a Hydrologically-modified, Nutrient-limited Wetland

Hydroperiod and seasonal effects on fish decomposition in an oligotrophic Everglades marsh

Macroinvertebrate community structure in high-and low-nutrient constructed wetlands

Soil phosphorus release from a restoration wetland, Upper Klamath Lake, Oregon

Calibration of modern pollen along a nutrient gradient in Everglades Water Conservation Area-2A

Landscape responses to wetland eutrophication: loss of slough habitat in the Florida Everglades, USA

Root phosphatase activity in Cladium jamaicense and Typha domingensis grown in Everglades soil at ambient and elevated phosphorus levels

Planktonic Bacterial Responses to Nutrient Amendments in Wetland Mesocosms

Macroinvertebrate community response to eutrophication in an oligotrophic wetland: An in situ mesocosm experiment