Consulta: subjectFacets:"Long-term monitoring"
Registros recuperados: 4
Data/hora: 01/06/2024 10:27:50

Cost-effective Sampling Design Applied to Large-scale Monitoring of Boreal Birds
Provedor de dados: 7
Autores: Carlson, Matthew; University of Alberta; mjc@ualberta.ca; Schmiegelow, Fiona; University of Alberta; Fiona.schmiegelow@ualberta.ca.
Despite their important roles in biodiversity conservation, large-scale ecological monitoring programs are scarce, in large part due to the difficulty of achieving an effective design under fiscal constraints. Using long-term avian monitoring in the boreal forest of Alberta, Canada as an example, we present a methodology that uses power analysis, statistical modeling, and partial derivatives to identify cost-effective sampling strategies for ecological monitoring programs. Empirical parameter estimates were used in simulations that estimated the power of sampling designs to detect trend in a variety of species&amp;#8217; populations and community metrics. The ability to detect trend with increased sample effort depended on the monitoring target&amp;#8217;s...
Tipo: Peer-Reviewed Reports
Palavras-chave: Allocation of sample effort; Boreal birds; Community metrics; Cost-effective sample design; Forest bird populations; Long-term monitoring; Partial derivatives; Power analysis; Sample error; Temporal and spatial variation; Trend detection.
Ano: 2002

Long-term fish community response to a reach-scale stream restoration
Provedor de dados: 7
Autores: Shirey, Patrick D.; University of Notre Dame, Department of Biological Sciences; Ecology Policy LLC; patrickdshirey@gmail.com; Brueseke, Michael A.; University of Notre Dame, Department of Biological Sciences; mbruesek@nd.edu; Kenny, Jillian B.; University of Notre Dame, Department of Biological Sciences; World Resources Institute; jkenny0803@gmail.com; Lamberti, Gary A.; University of Notre Dame, Department of Biological Sciences; glambert@nd.edu.
At a global scale, aquatic ecosystems are being altered by human activities at a greater rate than at any other time in history. In recent years, grassroots efforts have generated interest in the restoration of degraded or destroyed aquatic habitats, especially small wetlands and streams where such projects are feasible with local resources. We present ecological management lessons learned from 17 years of monitoring the fish community response to the channel relocation and reach-level restoration of Juday Creek, a 3rd-order tributary of the St. Joseph River in Indiana, USA. The project was designed to increase habitat complexity, reverse the effects of accumulated fine sediment (&amp;#60; 2 mm diameter), and mitigate for the impacts of a new golf course...
Tipo: Peer-Reviewed Reports
Palavras-chave: Conservation; Fisheries; Long-term monitoring; Restoration planning; Stream ecology.
Ano: 2016

The AMMA field campaigns: accomplishments and lessons learned
Provedor de dados: 5
Autores: Lebel, Thierry; Parker, Douglas J.; Flamant, Cyrille; Hoeller, Hartmut; Polcher, Jan; Redelsperger, Jean-luc; Thorncroft, Chris; Bock, Olivier; Bourles, Bernard; Galle, Sylvie; Marticorena, Beatrice; Mougin, Eric; Peugeot, Christophe; Cappelaere, Bernard; Descroix, Luc; Diedhiou, Arona; Gaye, Amadou; Lafore, Jean-philippe.
The AMMA (African Monsoon Multidiscplinary Analysis) field programme aimed at documenting the West African Monsoon (WAM) climate system, in all its geophysical components. It also includes an important socio-economic component. Encompassing a wide range of spatial and time scales, AMMA is one of the most ambitious such programmes ever set up. While the key accomplishments of AMMA are summarised in this paper, a few lessons of broad interest are also drawn both as a tribute to the extraordinary efforts made by a community of several hundreds of people and as possible guidelines for ensuring a long lasting future to integrated climate and environmental studies in West Africa.
Tipo: Text
Palavras-chave: Field campaigns; Instrument deployment; Long-term monitoring; Capacity building; West Africa.
Ano: 2011
URL: https://archimer.ifremer.fr/doc/00214/32510/30990.pdf

Potential environmental drivers of a regional blue mussel mass mortality event (winter 2014, Breton Sound, France)
Provedor de dados: 5
Autores: Polsenaere, Pierre; Soletchnik, Patrick; Le Moine, Olivier; Gohin, Francis; Robert, Stephane; Pepin, Jean-francois; Stanisiere, Jean-yves; Dumas, Franck; Bechemin, Christian; Goulletquer, Philippe.
In the context of global change, increasing mariculture production has raised particular concerns regarding its environmental impact and sustainability. Molluscs and particularly blue mussel account for a significant part of this total production. Although blue mussels are considered as pretty resilient to environmental disturbances, we report in this study an unprecedented mussel mortality event that occurred during the winter 2014 in the Breton Sound. 9000 metric tonnes of mussels were lost and mortality rates up to 100% were recorded at some farming areas. Through a coupling approach, the present work aimed to better understand the potential environmental drivers associated to those mortalities. Firstly we analysed long-term in situ and satellite data...
Tipo: Text
Palavras-chave: Mytilus edulis mortalities; Climate change; Breton sound; Long-term monitoring; Hydrodynamic modelling; Vibriosis.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00376/48708/49083.pdf