Consulta: subjectFacets:"Allostasis"
Registros recuperados: 2
Data/hora: 05/06/2024 05:22:55

Adaptive Capacity and Traps
Provedor de dados: 7
Autores: Carpenter, Stephen R; University of Wisconsin-Madison; srcarpen@wisc.edu; Brock, William A.; University of Wisconsin-Madison; WBrock@ssc.wisc.edu.
Adaptive capacity is the ability of a living system, such as a social&amp;#8211;ecological system, to adjust responses to changing internal demands and external drivers. Although adaptive capacity is a frequent topic of study in the resilience literature, there are few formal models. This paper introduces such a model and uses it to explore adaptive capacity by contrast with the opposite condition, or traps. In a social&amp;#8211;ecological rigidity trap, strong self-reinforcing controls prevent the flexibility needed for adaptation. In the model, too much control erodes adaptive capacity and thereby increases the risk of catastrophic breakdown. In a social&amp;#8211;ecological poverty trap, loose connections prevent the mobilization of ideas and resources...
Tipo: Peer-Reviewed Insight
Palavras-chave: Adaptation; Allostasis; Model; Poverty trap; Resilience; Rigidity trap; Transformation.
Ano: 2008

Husbandry stress during early life stages affects the stress response and health status of juvenile sea bass, Dicentrarchus labrax
Provedor de dados: 5
Autores: Varsamos, S; Flik, G; Pepin, Jean-francois; Bonga, S; Breuil, Gilles.
In aquaculture management it is important to establish objective criteria to assess health and welfare of the fish. Here we show that European sea bass (Dicentrarchus labrax) confronted with husbandry-associated stress (tank cleaning, i.e. scrubbing, and water temperature variation) during early life stages show poorer survival and disease resistance as juveniles. We evaluated several parameters for stress (plasma cortisol, glucose and lactate, hydromineral status), growth performance, the immune response (plasma IgM levels) and the effects of a nodavirus challenge. Principal component analysis allowed the establishment of a stress panel including plasma cortisol, osmolality, IgM levels and weight. Sea bass juveniles reared during early life in high and...
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Nodavirus challenge; Scrubbing; Temperature; Welfare; Health; Allostasis; Stress.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2395.pdf