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Mathematical ecology is an area of applied mathematics concerned with the application of mathematical concepts, tools and techniques, usually in the form of mathematical models, to problems arising in population dynamics, ecology and evolution. This Special Issue is designed to provide a snapshot of the state of the art in mathematical ecology. Topics of interest are (in no particular order) biological invasions, biological control, ecological pattern formation, ecologically relevant multiscale models, food webs, individual movement and dispersal, eco-epidemiology, evolutionary ecology, agroecosystems, regime shifts and early warning signals, synchronization and chaos. The list is inclusive rather than exclusive, and a few other relevant topics will also be considered.

biological invasions --- biological control --- pattern formation --- eco-epidemiology --- chaos --- mathematical genealogy --- random walks --- Levy walks --- individual animal movement --- immune response --- environmental stochasticity --- fragmented environment --- prey-predator --- competition --- nonlocal consumption --- food web --- dispersal --- ecosystem engineers --- biodiversity

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Numerous studies indicate an accelerated growth of forest trees, induced by ongoing climate change. Similar trends were recently found for urban trees in major cities worldwide. Studies frequently report about substantial effects of climate change and the urban heat island effect (UHI) on plant growth. The combined effects of increasing temperatures, changing precipitation patterns, and extended growing season lengths, in addition to increasing nitrogen deposition and higher CO2 concentrations, can increase but also reduce plant growth. Closely related to this, the multiple functions and services provided by urban trees may be modified. Urban trees generate numerous ecosystem services, including carbon storage, mitigation of the heat island effect, reduction of rainwater runoff, pollutant filtering, recreation effects, shading, and cooling. The quantity of the ecosystem services is often closely associated with the species, structure, age, and size of the tree as well as with a tree’s vitality. Therefore, greening cities, and particularly planting trees, seems to be an effective option to mitigate climate change and the UHI. The focus of this Special Issue is to underline the importance of trees as part of the urban green areas for major cities in all climate zones. Empirical as well as modeling studies of urban tree growth and their services and disservices in cities worldwide are included. Articles about the dynamics, structures, and functions of urban trees as well as the influence of climate and climate change on urban tree growth, urban species composition, carbon storage, and biodiversity are also discussed.

air pollution removal --- BVOC emission --- carbon sequestration --- tree competition --- urban forest --- urban forest --- urbanization --- sampling plots --- Landsat TM --- basal area --- urban tree growth --- climate change --- drought stress --- urban parks --- landscape planning --- allergenic potential --- ecosystem disservices --- ecosystem services --- ecosystem modeling --- sustainability --- human health --- environmental quality --- hot arid urban climate --- Greenway --- urban forest --- preferences --- choice experiment --- species richness --- abundance --- urban forest --- green spaces --- sustainability --- growing season --- bud break --- surface temperature --- urban heat island --- urban microclimate --- urban trees --- biomass allocation --- drought --- ecosystem services --- root:shoot ratio --- urban trees --- air pollution --- climate change implications --- oxides --- urbanity --- tree growth

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Nowadays, trust is an important determinant in the development of modern organizations. Not only is it becoming an increasingly important element of relationships between entities, but, above all, it positively influences the building of an organization's intellectual capital. This capital can be defined in different ways, but its definition always references elements that determine the potential of sustainable organizations, often in human, social, relational, organizational, and innovation dimensions. Trust is increasingly becoming the key determinant of this capital (Ko?uch, Lenart-Gansiniec, 2017). Trust also has a number of different definitions. However, the basis of many of these definitions is the building of relationships focused on developing some kind of individual or inter-organizational link. Organizational trust is a complicated concept, and it is the basis of all organized activities performed by people in the organization, largely because trust is needed to develop relationships with integrity and commitment. Thus, it is interesting to study the relationship between trust and the building of the intellectual capital of sustainable organizations. Indeed, intellectual capital plays a special role here. It is a guide and a platform for achieving not only a competitive advantage for the sustainable organization, but also a source of value creation in the short and long term. Thus, this strategic hybrid, composed of a business model, strategy, and business processes, is favorable to the development of intellectual capital (Jab?o?ski 2017). Trust is an element that ties this capital to relationships in business. Moreover, it has an integrated character (R.C. Mayer, J. H. Davis, F. D. Schoorman 1995). Assuming that, nowadays, the network paradigm is becoming increasingly important, it is worth asking how the mechanism of building trust-based intellectual capital in a sustainable organization functions as its key asset in the network environment.

trust --- distrust --- control --- project success --- structural equation modeling (SEM) --- trust --- trust management --- logistics service providers --- supply chain management --- collaboration --- trust --- antibiotic resistance --- antibiotics --- cooperation --- large-scale collective action --- Sweden --- coordinating behavior --- trust management --- reciprocity types --- reciprocity-based trust --- inter-organizational exchange relationships --- sustainable relationships --- consumer trust --- CSR --- advertising --- ethical advertising --- shockvertising --- consumer behavior --- apology --- denial --- penance --- opportunistic behaviors --- trust repair --- subcontracting --- scenario-based experiments --- sustainability --- trust --- distress --- transport services --- road freight transport --- modal shift potential --- paradigm shift --- modeling --- prediction --- General Discriminant Analysis --- trust --- international joint venture --- third-country relocation --- foreign direct investment --- asset specificity --- institutional theory --- public collaborative networks --- multilevel research --- trust --- cooperation --- competition --- paradoxes --- trust --- M&A sustainability --- performance --- start-ups --- retained autonomy --- mixed-method research --- interpersonal trust --- sustainable organizations --- competences --- relations --- cooperation --- trust --- quality culture --- universities --- higher education institutions --- conceptual model --- trust --- collaboration --- virtual teams --- integrity --- ability --- online --- strategic hybrids --- business model --- strategy --- business processes --- strategic projects --- water supply companies --- trust --- trustworthiness --- distrust --- water cooperation --- competition --- complexity --- deep uncertainty --- risk perception --- Nzoia river basin --- water policy gaming --- public management --- public-social partnership --- public value --- co-innovation --- sustainability --- trust --- creative industry --- networking --- stakeholders --- DAG scheduling --- trusted entities --- heterogeneous --- MCTS --- cultural routes --- trust --- cooperation networks --- cultural heritage management

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Hardwood-dominated temperate forests (mostly in Eastern North America, Europe, North East Asia) provide valuable renewable timber and numerous ecosystem services. Many of these forests have been subjected to harvesting or conversion to agriculture, sometimes over centuries, that have greatly reduced their former extent and diversity. Natural regeneration following harvesting or during post-agricultural succession has often failed to restore these forests adequately. Past harvesting practices and the valuable timber of some species have led to a reduction in their abundance. The loss of apex predators has caused herbivore populations to increase and exert intense browsing pressure on hardwood regeneration, often preventing it. Particularly important are fruit, nut and acorn bearing species, because of their vital role in forest food webs and biodiversity. Restoring hardwood species to natural forests in which they were formerly more abundant will require a number of forest management actions (e.g., resistant hybrids, deer exclosures/protectors, enrichment planting, underplanting, etc.). Similarly, reforesting areas that were once natural forests will also require new silvicultural knowledge. Global warming trends will intensify the need for interventions to maintain the diversity and function of temperate hardwood forests, as well as for increase hardwood reforestation.

forest restoration --- Fagaceae species --- seed predation --- seedling establishment --- sub-tropical hardwoods --- native mixed forests --- agroforestry --- riparian forest restoration --- hardwoods --- Juglans nigra --- Quercus macrocarpa --- Pinus strobus --- vegetation management --- weed control --- nitrate --- phosphorus --- deer abundance --- forest diversity --- avian guilds --- protected landscape area --- understorey --- unmanaged forest --- tree shelter --- deer browsing --- hardwood restoration --- assisted migration --- enrichment planting --- shelterwood --- Pinus strobus L. --- Quercus rubra L. --- Carya cordiformis (Wangenh.) K. Koch --- Juglans nigra L. --- Quercus rubra --- oak regeneration --- Central Hardwood Forest region --- shelterwood --- deer herbivory --- sugar maple --- yellow birch --- tree vigor --- growth efficiency index --- tree selection --- invasive plants --- forest restoration --- soil disturbance --- herbicide effects --- forest regeneration --- floristic quality index --- species composition --- Bioclimatic niche --- Durango --- Mexican tree species --- MaxEnt --- non-parametric correlation --- forest restoration --- wildfire --- biological diversity --- cultural diversity --- ecosystem services --- monitoring --- indicators --- inventory --- Native Americans --- non-timber forest products --- tree plantation --- abandoned agricultural field --- predation --- competition --- tolerance --- facilitation --- precision restoration

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The role and value of science within sport increases with ever greater professionalization and commercialization. Scientific and technological innovations are devised to increase performance, ensure greater accuracy of measurement and officiating, reduce risks of harm, enhance spectatorship, and raise revenues. However, such innovations inevitably come up against epistemological and metaphysical problems related to the nature of sport and physical competition. This Special Issue identifies and explores key and contemporary philosophical issues in relation to the science of sport and exercise. It is divided into three sections: 1. Scientific evidence, causation, and sport; 2. Science technology and sport officiating; and 3. Scientific influences on the construction of sport. It brings together scholars working on philosophical problems in sport to examine issues related to the values and assumptions behind sport and exercise science and key problems resulting from these and to provide recommendations for improving its practice.

elite sports --- sport nutrition --- standards of evidence --- evidence-based practices --- randomized controlled trials --- philosophy of medicine --- casuistry --- umpiring and refereeing --- technological assistance to match officials --- justice and continuity in match officiating --- ball trackers --- goal-line technology --- football --- cricket --- tennis --- transgender --- trans women --- sport --- testosterone --- gender --- gender binary --- sports tournaments --- team rankings --- intransitive dominance --- win-loops --- social choice theory --- Condorcet’s paradox --- championship pluralism --- technology --- running --- fairness --- competition --- accuracy --- officiating --- justice --- the human element --- technology --- Hawk-Eye --- aesthetics of sports --- counterfactuals --- absence causation --- causal necessity --- causal contingency --- david kellogg lewis --- prelusory goal --- possible sport worlds --- metaphysics of sport --- causation in sport --- sport ethics --- technology --- the spirit of sport --- excellence --- anti-doping --- nature --- governance --- ethics --- testosterone --- discrimination --- integrity --- science --- fair-play --- sport --- athletics --- exercise science --- philosophy --- sport psychology --- materialism --- Aristotle --- causation and nature --- exercise professional --- professional knowledge --- health --- wellbeing --- philosophy --- medicalization --- scientism --- biomedicine --- sport science --- epistemology --- ontology --- causation --- technology --- evidence