| 1. |
- Choren, Ricardo, et al.
(författare)
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Software engineering for large-scale multi-agent systems-SELMAS 2004 : workshop report
- 2004
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Ingår i: ACM SIGSOFT Software Engineering Notes. - : Association for Computing Machinery (ACM). - 0163-5948. ; 29:5, s. 1-10
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Tidskriftsartikel (refereegranskat)abstract
- This paper is intended to sum up the results of the Third International Workshop on Software Engineering for Large-Scale Multi-Agent System (SELMAS 2004) held in Edinburgh, Scotland, May 24--25, 2004, as part of the International Conference on Software Engineering (ICSE 2004). The main purpose of this workshop was to share and pool the collective experience of people, both academics and practitioners, who are actively working on software engineering for large-scale multi-agent systems. The call for papers elicited some 24 submissions, of which 14 papers were accepted for presentation. A set of selected workshop and invited papers are to appear in a Lecture Notes in Computer Science (LNCS, Springer) volume. The workshop consisted of an opening presentation, two keynote talks, four technical sessions of paper presentations, and two panels. During the workshop we informally reviewed ongoing and previous work and debated a number of important issues. The SELMAS 2004 website can be found at <http://www.teccomm.les.inf.puc-rio.br/semas2004>. We begin by presenting an overview of our goals and the workshop structure, and then focus on the workshop technical program.
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| 2. |
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| 3. |
- Eggertsen, Linda, 1981-, et al.
(författare)
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Where the grass is greenest in seagrass seascapes depends on life history and simple species traits of fish
- 2022
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Ingår i: Estuarine, Coastal and Shelf Science. - : Academic Press. - 0272-7714 .- 1096-0015. ; 266
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Tidskriftsartikel (refereegranskat)abstract
- Tropical seagrass meadows are critical habitats for many fish species, yet few studies have investigated the influence of multiple scale-dependent factors and marine protected areas on seagrass fish species of differing life histories. We assessed the influence of fine-scale seagrass meadow characteristics and seascape-scale variables on the abundance of fish in a seagrass-dominated seascape in the Bazaruto Archipelago, Mozambique, particularly examining patterns of nursery- vs. resident species as well as mobile- vs. sedentary species. We found that fish distribution patterns in this seagrass-dominated seascape were dependent on species’ life history characteristics; nursery taxa showed lower abundance in seagrass meadows further from adult reef habitats, while resident species within seagrass meadows occurred in higher abundances far from reefs. For taxa utilizing both mangroves and seagrass meadows as nursery habitat, proximity to mangroves was an important factor. Fish abundances were generally influenced by variables at the seascape scale (km), while sedentary species were predominantly influenced by area variables, and smaller seascapes (<500 m in radius) better explained distribution patterns. The influence of marine protected areas was taxon-specific, with the strongest effects of protection on resident species. Our results indicate that protection efforts in seagrass-dominated seascapes can have varying impacts on fish distribution, depending on the life history of the species present, and the geographical placement of the reserve within the seascape. Further, we suggest that simple species attributes can be utilised to describe generalized abundance patterns of fish in seagrass seascapes.
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| 4. |
- Jardim de Queiroz, Luiz, et al.
(författare)
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Evolutionary units delimitation and continental multilocus phylogeny of the hyperdiverse catfish genus Hypostomus.
- 2020
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Ingår i: Molecular phylogenetics and evolution. - : Elsevier BV. - 1095-9513 .- 1055-7903. ; 145:April
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Tidskriftsartikel (refereegranskat)abstract
- With 149 currently recognized species, Hypostomus is one of the most species-rich catfish genera in the world, widely distributed over most of the Neotropical region. To clarify the evolutionary history of this genus, we reconstructed a comprehensive phylogeny of Hypostomus based on four nuclear and two mitochondrial markers. A total of 206 specimens collected from the main Neotropical rivers were included in the present study. Combining morphology and a Bayesian multispecies coalescent (MSC) approach, we recovered 85 previously recognized species plus 23 putative new species, organized into 118 'clusters'. We presented the Cluster Credibility (CC) index that provides numerical support for every hypothesis of cluster delimitation, facilitating delimitation decisions. We then examined the correspondence between the morphologically identified species and their inter-specific COI barcode pairwise divergence. The mean COI barcode divergence between morphological sisters species was 1.3±1.2%, and only in 11% of the comparisons the divergence was ≥2%. This indicates that the COI barcode threshold of 2% classically used to delimit fish species would seriously underestimate the number of species in Hypostomus, advocating for a taxon-specific COI-based inter-specific divergence threshold to be used only when approximations of species richness are needed. The phylogeny of the 108 Hypostomus species, together with 35 additional outgroup species, confirms the monophyly of the genus. Four well-supported main lineages were retrieved, hereinafter called super-groups: Hypostomus cochliodon, H. hemiurus, H. auroguttatus, and H. plecostomus super-groups. We present a compilation of diagnostic characters for each super-group. Our phylogeny lays the foundation for future studies on biogeography and on macroevolution to better understand the successful radiation of this Neotropical fish genus.
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| 5. |
- Rockström, Johan, et al.
(författare)
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Climate change : The necessary, the possible and the desirable Earth League climate statement on the implications for climate policy from the 5th IPCC Assessment
- 2014
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Ingår i: Earth’s Future. - 2328-4277. ; 2:12, s. 606-611
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Tidskriftsartikel (refereegranskat)abstract
- The development of human civilisations has occurred at a time of stable climate. This climate stability is now threatened by human activity. The rising global climate risk occurs at a decisive moment for world development. World nations are currently discussing a global development agenda consequent to the Millennium Development Goals (MDGs), which ends in 2015. It is increasingly possible to envisage a world where absolute poverty is largely eradicated within one generation and where ambitious goals on universal access and equal opportunities for dignified lives are adopted. These grand aspirations for a world population approaching or even exceeding nine billion in 2050 is threatened by substantial global environmental risks and by rising inequality. Research shows that development gains, in both rich and poor nations, can be undermined by social, economic and ecological problems caused by human-induced global environmental change. Climate risks, and associated changes in marine and terrestrial ecosystems that regulate the resilience of the climate system, are at the forefront of these global risks. We, as citizens with a strong engagement in Earth system science and socio-ecological dynamics, share the vision of a more equitable and prosperous future for the world, yet we also see threats to this future from shifts in climate and environmental processes. Without collaborative action now, our shared Earth system may not be able to sustainably support a large proportion of humanity in the decades ahead.
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| 6. |
- Santos de Lucena, Carlos A., et al.
(författare)
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Conjectures and refutations: Species diversity and phylogeny of Australoheros from coastal rivers of southern South America (Teleostei: Cichlidae)
- 2022
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Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 17:12, s. e0261027-e0261027
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Tidskriftsartikel (refereegranskat)abstract
- Morphological and genetic analyses of species of Australoheros focusing on those distributed in coastal rivers from the Rio de La Plata north to the Rio Buranhém, support recognition of 17 valid species in the genus. Eight species are represented in coastal rivers: A. acaroides, A. facetus, A. ipatinguensis, A. oblongus, A. ribeirae, and A. sanguineus are validated from earlier descriptions. Australoheros mboapari is a new species from the Rio Taquari in the Rio Jacuí drainage. Australoheros ricani is a new species from the upper Rio Jacuí. Specimens from the Rio Yaguarón and Rio Tacuary, affluents of Laguna Merín, and tributaries of the Rio Negro, tributary of the Rio Uruguay are assigned to A. minuano pending critical data on specimens from the type locality of A. minuano. Australoheros taura is ajunior synonym of A. acaroides. Australoheros autrani, A. saquarema, A. capixaba, A.macaensis, A. perdi, and A. muriae are junior synonyms of A. ipatinguensis. Heros autochthon, A. mattosi, A. macacuensis, A. montanus, A. tavaresi, A. paraibae, and A. barbosae,are junior synonyms of A. oblongus. Heros jenynsii is a junior synonym of A. facetus.
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