نتایج جستجو برای: ecological disturbances

تعداد نتایج: 146768  

2014
David H Williamson Daniela M Ceccarelli Richard D Evans Geoffrey P Jones Garry R Russ

Severe climatic disturbance events often have major impacts on coral reef communities, generating cycles of decline and recovery, and in some extreme cases, community-level phase shifts from coral-to algal-dominated states. Benthic habitat changes directly affect reef fish communities, with low coral cover usually associated with low fish diversity and abundance. No-take marine reserves (NTRs) ...

2015
Milene Silvestrini Flavio Antonio Maës dos Santos

The distribution of tree species in tropical forests is generally related to the occurrence of disturbances and shifts in the local environmental conditions such as light, temperature, and biotic factors. Thus, the distribution of pioneer tree species is expected to vary according to the gap characteristics and with human disturbances. We asked whether there was variation in the distribution of...

2006
Kelly O. Maloney Jack W. Feminella

Stream benthic macroinvertebrates are useful indicators of the impacts of disturbances on catchment and stream conditions because they integrate many catchment-scale ecological processes. We tested the ability of macroinvertebrate assemblages over a 3-year period to indicate the impacts of a range of disturbances resulting from military training at the Fort Benning Military Installation, Georgi...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2002
Edward D Breslin

The paper explores the development of ecological sanitation (EcoSan) within the small-town context of Lichinga, Niassa Province, Mozambique. The paper looks at how ESTAMOS (a Mozambican NGO) and WaterAid introduced EcoSan in Lichinga, how families and communities have responded to EcoSan, and key lessons learned during the process to date that could be relevant to others within and beyond Mozam...

Journal: :J. Informetrics 2017
Mike Thelwall Ruth Fairclough

When comparing the average citation impact of research groups, universities and countries, field normalisation reduces the influence of discipline and time. Confidence intervals for these indicators can help with attempts to infer whether differences between sets of publications are due to chance factors. Although both bootstrapping and formulae have been proposed for these, their accuracy is u...

2011
Gitte Skou Petersen

The intention of this paper is to propose interaction design as a venue for IS research into sustainability and in that connection also propose a new theoretical psychological approach to interaction design. This new theoretical psychological framework is based on ecological psychology and activity theory. The paper will outline the scientific demands for the framework as well as the frameworks...

Journal: :Australasian J. of Inf. Systems 2000
Marcus Watson W. John Russell Penelope M. Sanderson

The operating theatre is a noisy place with many uninformative and redundant alarms. Using data from a recent observational study, we demonstrate that anaesthetists actively respond to only 3.4% of all audible alarms. We outline a range of possible solutions to the alarm problem. Ecological Interface Design (EID) helps to outline the requirements for an information environment for anaesthetists...

2007
Jonas Linderoth Ulrika Bennerstedt

In this chapter we outline an ecological approach to computer games and test out how the theory of ecological psychology can be used for understanding digital games and game-play. Ecological psychology holds that learning is a process of differentiating and not of interpreting or construing. Therefore semiotic/cognitive views on learning and perception with computer games, were the perceptual a...

2009
Yassine Gangat Rémy Courdier Denis Payet

The GERRI project materializes the Grenelle Environnement’s goals, of which the energy management of a territory is a facet. The aim is to forecast future energy production and consumption, bearing in mind economic and ecological indicators, and using a large number of interactions schemes between the involved parties. The originality of this paper is to present a new approach using the multi-a...

2013
Than J. Boves David A. Buehler James Sheehan Petra Bohall Wood Amanda D. Rodewald Jeffrey L. Larkin Patrick D. Keyser Felicity L. Newell Gregory A. George Marja H. Bakermans Andrea Evans Tiffany A. Beachy Molly E. McDermott Kelly A. Perkins Matthew White T. Bently Wigley

Forest cover in the eastern United States has increased over the past century and while some late-successional species have benefited from this process as expected, others have experienced population declines. These declines may be in part related to contemporary reductions in small-scale forest interior disturbances such as fire, windthrow, and treefalls. To mitigate the negative impacts of di...

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