Long‐term ecosystem monitoring at Huntington Forest: integrating hydrology, biogeochemistry and climatic controls on watershed processes

2021 ◽  
Author(s):  
Colin Beier ◽  
James Mills ◽  
Patrick McHale ◽  
Charles T. Driscoll ◽  
Myron J. Mitchell
Keyword(s):  
Ecosystem Monitoring ◽  
Watershed Processes

scholarly journals The Forest Ecosystem Monitoring Cooperative Long-Term Monitoring Update – 2018

2020 ◽  
Author(s):  
Mathias Nevins ◽  
Alexandra Kosiba ◽  
John Truong ◽  
Rebecca Stern ◽  
Jennifer Pontius
Keyword(s):  
Forest Ecosystem ◽  
Ecosystem Monitoring ◽  
Long Term Monitoring ◽  
Term Monitoring

scholarly journals Isotopic evidence of increasing water abundance and lake hydrological change in Old Crow Flats, Yukon, Canada

2021 ◽  
Vol 16 (12) ◽  
pp. 124024
Author(s):  
Lauren A MacDonald ◽  
Kevin W Turner ◽  
Ian McDonald ◽  
Mitchell L Kay ◽  
Roland I Hall ◽  
...  
Keyword(s):  
Isotope Composition ◽  
Monitoring Program ◽  
Additive Models ◽  
Water Levels ◽  
Wildlife Habitat ◽  
Ecosystem Monitoring ◽  
International Polar Year ◽  
Monitoring Programs ◽  
Old Crow Flats

Abstract Lake-rich northern permafrost landscapes are sensitive to changing climate conditions, but ability to track real-time and potentially multiple hydrological responses (e.g. lake expansion, drawdown, drainage) is challenging due to absence of long-term, sustainable monitoring programs in these remote locations. Old Crow Flats (OCF), Yukon, is a Ramsar Wetland of International Importance where concerns about low water levels and their consequences for wildlife habitat and traditional ways of life prompted multidisciplinary studies during the International Polar Year (2007–2008) and led to the establishment of an aquatic ecosystem monitoring program. Here, we report water isotope data from 14 representative thermokarst lakes in OCF, the foundation of the monitoring program, and time-series of derived metrics including the isotope composition of input waters and evaporation-to-inflow ratios for a 13 year period (2007–2019). Although the lakes spanned multiple hydrological categories (i.e. rainfall-, snowmelt- and evaporation-dominated) based on initial surveys, well-defined trends from application of generalized additive models and meteorological records reveal that lakes have become increasingly influenced by rainfall, and potentially waters from thawing permafrost. These sources of input have led to more positive lake water balances. Given the documented role of rainfall in causing thermokarst lake drainage events in OCF and elsewhere, we anticipate increased vulnerability of lateral water export from OCF. This study demonstrates the value of long-term isotope-based monitoring programs for identifying hydrological consequences of climate change in lake-rich permafrost landscapes.

Long-term ecosystem monitoring and assessment of the Detroit River and Western Lake Erie

2008 ◽  
Vol 158 (1-4) ◽  
pp. 87-104 ◽  
Author(s):  
J. H. Hartig ◽  
M. A. Zarull ◽  
J. J. H. Ciborowski ◽  
J. E. Gannon ◽  
E. Wilke ◽  
...  
Keyword(s):  
Lake Erie ◽  
Ecosystem Monitoring ◽  
Detroit River ◽  
Western Lake ◽  
Western Lake Erie

scholarly journals A Flexible Autonomous Robotic Observatory Infrastructure for Bentho-Pelagic Monitoring

Sensors ◽  
2020 ◽  
Vol 20 (6) ◽  
pp. 1614 ◽  
Author(s):  
Jacopo Aguzzi ◽  
Jan Albiez ◽  
Sascha Flögel ◽  
Olav Rune Godø ◽  
Endre Grimsbø ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Oil And Gas ◽  
Cold Water ◽  
Three Dimensional ◽  
Ecosystem Monitoring ◽  
Habitat Features ◽  
Technological Developments ◽  
Processing Techniques ◽  
Traditional Approaches

This paper presents the technological developments and the policy contexts for the project “Autonomous Robotic Sea-Floor Infrastructure for Bentho-Pelagic Monitoring” (ARIM). The development is based on the national experience with robotic component technologies that are combined and merged into a new product for autonomous and integrated ecological deep-sea monitoring. Traditional monitoring is often vessel-based and thus resource demanding. It is economically unviable to fulfill the current policy for ecosystem monitoring with traditional approaches. Thus, this project developed platforms for bentho-pelagic monitoring using an arrangement of crawler and stationary platforms at the Lofoten-Vesterålen (LoVe) observatory network (Norway). Visual and acoustic imaging along with standard oceanographic sensors have been combined to support advanced and continuous spatial-temporal monitoring near cold water coral mounds. Just as important is the automatic processing techniques under development that have been implemented to allow species (or categories of species) quantification (i.e., tracking and classification). At the same time, real-time outboard processed three-dimensional (3D) laser scanning has been implemented to increase mission autonomy capability, delivering quantifiable information on habitat features (i.e., for seascape approaches). The first version of platform autonomy has already been tested under controlled conditions with a tethered crawler exploring the vicinity of a cabled stationary instrumented garage. Our vision is that elimination of the tether in combination with inductive battery recharge trough fuel cell technology will facilitate self-sustained long-term autonomous operations over large areas, serving not only the needs of science, but also sub-sea industries like subsea oil and gas, and mining.

scholarly journals Male Antarctic fur seals: neglected food competitors of bioindicator species in the context of an increasing Antarctic krill fishery

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
A. D. Lowther ◽  
I. Staniland ◽  
C. Lydersen ◽  
K. M. Kovacs
Keyword(s):  
Antarctic Krill ◽  
Marine Protected Area ◽  
Monitoring Program ◽  
Fishing Effort ◽  
Bioindicator Species ◽  
Ecosystem Monitoring ◽  
Holistic View ◽  
Fur Seals ◽  
Antarctic Fur Seals

Abstract The fishery for Antarctic krill is currently managed using a precautionary, ecosystem-based approach to limiting catch, with performance indices from a long-term monitoring program focused on several krill-dependent predators that are used to track ecosystem health. Concerns over increased fishing in concentrated areas and ongoing efforts to establish a Marine Protected Area along the Peninsula, a key fishing region, is driving the development of an adaptive management system for the fishery. The cumulative effects of fishing effort and interactions among krill-dependent predators and their performance is at present neglected in the CCAMLR Ecosystem Monitoring Program. However, we show considerable overlap between male Antarctic fur seals and the krill fishery in a complex mosaic, suggesting potential for cumulative impacts on other krill dependent predators. A holistic view is required as part of future efforts to manage the krill fishery that incorporates various sources of potential impacts on the performance of bioindicator species, including the fishery and its interactions with various krill dependent predators.

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