Higher Trophic Levels
How does the structure and function of higher trophic levels respond to variations in organic matter, nutrients and water fluxes?
This section of the Plum Island Ecosystem
LTER data includes a description of the aquatic macrofauna in the estuarine
system, data from aquatic macrofauna surveys and stable isotopes, and data with
a short paper on birds in the Plum Island Sound Estuary.
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HTL (Higher Trophic Level) Description
Description of the Plum Island Sound Aquatic Macrofauna
HTL Sites
Site map of higher trophic level sampling stations
HTL-PIE-Survey-1993
Aquatic Macrofauna Survey Data. Monthly macrofauna sampling during 1993
HTL-PIE-Survey-1994
Aquatic Macrofauna Survey Data. Monthly macrofauna sampling during 1994
HTL-PIE-Survey-1997
Aquatic Macrofauna Survey Data. Monthly macrofauna sampling during 1997
HTL-PIE-Survey-1998
Aquatic Macrofauna Survey Data. Monthly macrofauna sampling during 1998
HTL-PIE-Survey-1999
Aquatic Macrofauna Survey Data. Monthly macrofauna sampling during 1999
HTL-PIE-Survey-2002
Aquatic Macrofauna Survey Data. Monthly macrofauna sampling during 2002
HTL-PIE-YearlyIsotopeSurvey
Annual functional group stable isotope surveys in the Plum Island Sound estuary.
HTL-PR-Isotope
Stable Isotope Survey of the Plum Island Sound Aquatic Macrofauna Carbon,
nitrogen, and sulphur stable isotope survey data
HTL Bird Description
Description of the Plum Island Estuary bird populations
HTL-SO-Bird
Averages of the three highest counts per decade for selected birds in Plum
Island Sound. See also "Birds at Plum Island Sound: A Comparison of
Present and Historical Observations"
MON-EX-PRNWR-Breeding-Birds
Breeding bird census data at the Parker River National Wildlife Refuge
MON-EX-PRNWR-Salt-Marsh-Birds
Salt marsh bird census data at the Parker River National Wildlife Refuge
MON-EX-PRNWR-Volunteer-Birds
Bird observations by volunteers at the Parker River National Wildlife Refuge
