The ODD protocol: A review and first update

Grimm, Volker; Berger, Uta; Jiang, Jiang; Polhill, Gary; Giske, Jarl; Railsback, Steven F.

doi:10.1016/j.ecolmodel.2010.08.019

Cited by 2,013 publications

(1,318 citation statements)

References 27 publications

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“…Description of the vertical migration foraging model following the overview, design concepts and details protocol (ODD protocol) 54 . Submodels are presented in the Supplementary information in full detail.…”

Section: Statistical Analyses Of Dive Operationsmentioning

confidence: 99%

The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill

et al. 2017

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A ntarctic krill Euphausia superba, a key species in Southern Ocean food webs 1 , plays a central role in ecosystem processes and community dynamics of apex predators, and is the target of a commercial fishery 2 . Krill spawn in late spring and their larvae develop during summer, autumn and under the ice in winter to emerge as juveniles in the following spring. The newly spawned eggs sink from the surface to up to 1,000 m depth where they hatch and the developing larvae actively swim upwards to feed in the upper water column 1 . Larval Antarctic krill have low lipid reserves, which are insufficient to support long periods of starvation. Therefore, winter, when primary production is minimal, is assumed to be a critical bottleneck for larval krill development and hence recruitment to the adult population 3,4 . Present hypotheses suggest that high algal biomass in winter sea ice enhances larval krill winter-feeding conditions and growth [5][6][7][8] . This implies that larvae have access to this high algal biomass within the sea ice. However, recent observations 9,10 indicate that the linkage between sea ice and krill recruitment success is not as direct as has been suggested. The timing of ice-edge advance and annual ice-season duration is highly variable, and does not necessarily show a clear link to krill recruitment in the following year ( Supplementary Figs. 1 and 2). Along the Antarctic Peninsula, adult krill have a five to six year population cycle with oscillations in biomass exceeding an order of magnitude 9 . According to bioenergetics models, part of the variability is due to interannual variation in reproductive output 11 as well as autumn blooms that may govern the possible overwinter survival rate of larvae 11,12 . In the Bransfield Strait, three krill winter surveys have shown that krill abundance is an order of magnitude higher than in summer, regardless of concurrent sea-ice conditions 10 A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the main feeding ground for krill larvae. Observations from our winter cruise to the southwest Atlantic sector of the Southern Ocean contradict this view and present the first evidence that the pack-ice zone is a food-poor habitat for larval development. In contrast, the more open marginal ice zone provides a more favourable food environment for high larval krill growth rates. We found that complex under-ice habitats are, however, vital for larval krill when water column productivity is limited by light, by providing structures that offer protection from predators and to collect organic material released from the ice. The larvae feed on this sparse ice-associated food during the day. After sunset, they migrate into the water below the ice (upper 20 m) and drift away from the ice areas where they have previously fed. Model analyses indicate that this behaviour increases both food uptake in a patchy food environment and the likelihood of overwinter transport to areas where feeding conditions are more favourable in spring.

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Section: Statistical Analyses Of Dive Operationsmentioning

confidence: 99%

The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill

et al. 2017

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“…The model's description follows, where applicable, the ODD (Overview, Design concepts, Details) protocol (Grimm et al, 2006;2010).…”

Section: Methodsologymentioning

confidence: 99%

Simulating the Farm: Computational Modelling of Cattle and Sheep Herd Dynamics for the Analysis of Past Animal Husbandry Practices

Joyce¹,

Verhagen²

2016

Multi-, Inter- And Transdisciplinary Research in Landscape Archaeology

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This study forms part of a larger project analysing the development of the cultural landscape in the Dutch Roman limes region, including the development of the rural economy. The primary research aim in this study is to investigate changes in pastoral production as a result of differing population dynamics of sheep and cattle herds subjected to different animal husbandry practices. Differences between such practices have not been considered in previous models of pastoral production in the region where herds have been treated as static entities. In this study we simulated different animal husbandry strategies based on trends and developments inferred from the faunal record in a well-documented area of the limes zone. The results of these simulations were analysed for differences in population viability, as well as relative differences in production of meat, wool and manure, and relative requirements for pastureland requirements and labour. Our analysis shows that cattle and sheep herds exploited for products supplied by the animals whilst living (manure and traction from cattle, wool from sheep) exhibit higher growth rates than herds exploited for meat. In addition, they are able to supply larger quantities of calories. However these herds have higher requirements for labour and land, presenting a possibly limiting factor. We conclude that, in addition to complementing intensification and extensification of arable farming observed in the region, agriculturalists would have benefitted from herds with higher growth rates, particularly given their risk-aversion behavior during periods of economic uncertainty. These simulations will be subsequently used to produce more nuanced scenarios of pastoral production within agent-based modelling of the mixed rural economy in the Dutch Roman limes zone.

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“…Apresentaremos, também, os Modelos Baseados em Agentes (MBA) (Janssen, 2005;Smaldino, 2015;Wallick, 2012), sua definição, composição (Janssen, 2005;Smaldino, 2015;Wallick, 2012), e o protocolo que foi adotado aqui para descrição do modelo (Grimm et al, 2010). A descrição formal do modelo construído para se estudar a origem da DMH é feita no Capítulo 5.…”

Section: A Cultura Urukunclassified

“…As interações entre agentes nesses modelos podem levar à emergência de padrões comuns ao sistema como um todo (Axelrod, 1997;Bentley, 2003), que não seriam compreendidos a partir da análise apenas das ações individuais (Halbing & Balietti, 2012 Grimm et al (2010). A adesão expressiva ao ODD, norteia a escolha feita aqui por apresentarmos o modelo de origem e evolução da DMH nestes mesmos moldes.…”

Section: Dinâmicas Socioambientais E Os Sacunclassified

“…A descrição simplificada dificultaria a avaliação desses modelos, motivo que teria levado à proposição do protocolo ODD (Overview, Design Concepts, Details) (Grimm et al, 2006). O uso de um protocolo comum de descrição e leitura dos modelos publicados em todas as áreas da ciência que se utilizam dos MBA, os tornaria mais fáceis de serem avaliados e replicados (Grimm et al, 2010).…”

Section: O Protocolo Oddunclassified

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Origem e evolução da desigualdade material hereditária: uma abordagem dos Sistemas Adaptativos Complexos

Freitas¹

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The ODD protocol: A review and first update

Cited by 2,013 publications

References 27 publications

The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill

The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill

Simulating the Farm: Computational Modelling of Cattle and Sheep Herd Dynamics for the Analysis of Past Animal Husbandry Practices

Origem e evolução da desigualdade material hereditária: uma abordagem dos Sistemas Adaptativos Complexos

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