concept

ECRA

Also known as: Ecr, cumulative resources

Facts (13)

Sources

Allostasis revisited: A perception, variation, and risk framework frontiersin.org Frontiers Sep 28, 2022 12 facts

claimType II allostatic overload results in pathology associated with chronically elevated glucocorticoids, where basal energy availability is defined by Eg (food available in the environment) and Ecr (which includes Eg, endogenous energy reserves, and access to Eg based on factors like predation risk and social status).

formulaPRP = Ecr - Eload

formulaPerturbation resistance potential (PRP) is calculated as the difference between cumulative resources (Ecr) and the sum of basal existence energy (Ee), routine metabolic rate (Ei), and energetic costs due to perturbation (Eo), expressed as the formula PRP = Ecr - (Ee + Ei + Eo).

claimAllostatic load indicates energetic requirements and is a reliable cue when resources are limited (allostatic load is close to Ecr, and Perturbation Resistance Potential is low), but it increases error when resources vastly exceed requirements (allostatic load is much less than Ecr, and Perturbation Resistance Potential is high).

claimIn the McEwen and Wingfield (2003) model, Type II allostatic overload occurs when allostatic load remains high without exceeding basal energy available, where basal energy is defined as Eg (food available in the environment) and Ecr (endogenous energy reserves and access to Eg).

claimIn the energetics-based framework, Eg is defined as food available in the environment, and Ecr includes Eg while also recognizing endogenous energy reserves of the individual and access to Eg as a result of factors like predation risk and social status.

claimCumulative resources (Ecr) represent a complete assessment of resource availability by including energy gained from the environment (Eg) as well as endogenous reserves like fat and proteins, while accounting for foraging efficiency affected by predation risk and social status.

referenceThe terms 'Eg' (energy gained from the environment) and 'Ecr' (cumulative resources) decrease based on changes in seasons, competition, predation risk, and weather, resulting in behavioral phenotypes that enhance foraging and competition.

claimEg (Energy gained from the environment) refers to the amount of energy in food available in the environment, while Ecr (Cumulative resources) includes Eg plus endogenous reserves like fat and proteins, and accounts for foraging efficiency affected by predation risk and social status.

claimThe concept of Ecr includes resource availability (Eg), endogenous energy reserves, and the degree of access to resources influenced by factors such as social status and predation risk.

claimIn the context of allostasis, 'Eg' refers specifically to the amount of energy in food available in the environment, whereas 'Ecr' includes 'Eg' plus endogenous reserves like fat and proteins, while also accounting for how foraging efficiency is affected by predation risk and social status.

claimReplacing Eg with Ecr in the allostatic load model delays the occurrence of allostatic overload until Phase III starvation, which satisfies the requirement that overload occurs concurrently with elevated glucocorticoid levels.

Cyber Insights 2025: Open Source and Software Supply Chain ... securityweek.com SecurityWeek Jan 15, 2025 1 fact

claimThe European Union's NIS2, DORA, and ECRA regulations require security and transparency from commercial organizations, including those utilizing open source software.