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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact

technology --- megafauna --- conservation --- wildlife --- human impacts

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This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact

Science: general issues --- Oceanography (seas) --- technology --- megafauna --- conservation --- wildlife --- human impacts

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This edited volume aims to widen the discussion about the diversity of human-nature relationships and valuation methods and to stimulate new perspective that are needed to build a more sustainable future, especially in face of ongoing socio-environmental changes. Conceptual and empirical approaches, including qualitative, quantitative, and mixed methodologies have been used to highlight the importance of an integrative understanding of socio-ecological systems, where healthy ecosystems underpin the quality of life and societal activities largely drive environmental changes. Readers will obtain a comprehensive overview of the many and diverse ways the relationships between people and nature can be characterized. This includes understanding how people assign values to nature, discuss how human-nature interactions are shaped and provide examples of how these values and interactions can be systematically assessed across different land systems in Europe and beyond. This open access book is produced by internationally recognized scientists in the field but written in an accessible format to be of interest to a large audience, including prospective students, lecturers, young professionals and scientists embarking to the interdisciplinary field of socio-ecological research and environmental valuation.

Biodiversitat --- Medi ambient --- Ecologia aplicada --- Protecció --- Ecologia --- Natura --- Protecció ambiental --- Protecció mediambiental --- Protecció del medi ambient --- Ciències ambientals --- Enginyeria ambiental --- Qualitat ambiental --- Política ambiental --- Diversitat biològica --- Diversitat ecològica --- Biologia --- Heterogeneïtat ecològica --- Conservació --- Human nature interactions --- Nature's benefits to society --- Science-policy interface --- Scale and gradient analyses --- Environmental and human impacts --- Spatial planning and conservation --- Urban Geography and Urbanism --- Ecologia humana --- Efecte del clima sobre l'home --- Desenvolupament sostenible

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Erosion is experienced by most coastlines worldwide, and it is usually attributed not only to sea level rise but also to the retention of sand in dams, the occupation of dry beaches by urbanized areas, the mining of sand as a building material for construction, and so on. Beach nourishment has evolved as the favored erosion-mitigation strategy in many areas of the world. The increasing number of people living on the coast, the safety of those people, and the high values of coastal properties are all factors that have made beach nourishment a cost-effective strategy for managing erosion in many locations. However, a new scenario of sand scarcity and environmental care has arisen in recent decades. There have been many different and interesting cases of various aspects of beach nourishment in recent years. The purpose of this invited Special Issue is to publish the most exciting experience and research with respect to this topic. Thus, novel techniques for designing, executing, and controlling these kinds of works as well as different case studies and their monitoring results and conclusions have been included, in order to present an updated state of the art for marine scientists, researchers, and engineers.

Technology: general issues --- key coastal erosion --- sediment budget --- fill stability --- colour compatibility --- beach nourishment --- beach restoration --- ecosystem management --- substrate --- reproductive habitat --- human impacts --- beach-spawning fishes --- essential fish habitat --- visualisation --- erosion --- modelling --- stakeholders --- sand engine --- XBeach --- shore protection --- perched beaches --- monitoring --- cost --- volume density --- geologically controlled beach --- Cancun beach --- coastal erosion --- hurricane damage --- beach nourishment assessment --- beach profile imbalance --- beach evaluation --- multidata approach --- sedimentary dynamics --- outfall --- marine geophysics --- magnetic method --- Colombian Caribbean --- DIMAR --- CIOH --- UAV --- RPAS --- littoral systems --- aerial photogrammetry --- DTM --- SfM --- GCPs

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Human impacts are dramatically altering our natural ecosystems but the exact repercussions on ecological sustainability and function remain unclear. As a result, food web theory has experienced a proliferation of research seeking to address these critical areas. Arguing that the various recent and classical food web theories can be looked at collectively and in a highly consistent and testable way, Food Webs synthesizes and reconciles modern and classical perspectives into a general unified theory. Kevin McCann brings together outcomes from population-, community-, and ecosystem-level approaches under the common currency of energy or material fluxes. He shows that these approaches--often studied in isolation--all have the same general implications in terms of population dynamic stability. Specifically, increased fluxes of energy or material tend to destabilize populations, communities, and whole ecosystems. With this understanding, stabilizing structures at different levels of the ecological hierarchy can be identified and any population-, community-, or ecosystem-level structures that mute energy or material flow also stabilize systems dynamics. McCann uses this powerful general framework to discuss the effects of human impact on the stability and sustainability of ecological systems, and he demonstrates that there is clear empirical evidence that the structures supporting ecological systems have been dangerously eroded. Uniting the latest research on food webs with classical theories, this book will be a standard source in the understanding of natural food web functions.

SCIENCE / Life Sciences / Biology / General. --- SCIENCE / Life Sciences / Ecology. --- Biotic communities. --- Food chains (Ecology) --- Biocenoses --- Biocoenoses --- Biogeoecology --- Biological communities --- Biomes --- Biotic community ecology --- Communities, Biotic --- Community ecology, Biotic --- Ecological communities --- Ecosystems --- Natural communities --- Ecology --- Population biology --- Food webs (Ecology) --- Trophic ecology --- Animals --- Nutrient cycles --- Food --- Canadian Shield. --- Gershgorin discs. --- Hopf bifurcation. --- Robert Holt. --- adaptive behavior. --- alternative stable states. --- aquatic microcosm. --- asynchrony. --- bifurcation. --- bird feeder effect. --- body size. --- competition. --- consumers. --- consumerвesource dynamics. --- consumerвesource interactions. --- consumerвesource models. --- consumerвesource theory. --- continuous logistic growth models. --- detritus. --- diamond food web. --- discrete equations. --- dynamical systems theory. --- dynamical systems. --- ecological instability. --- ecological stability. --- ecological systems. --- ecosystem collapse. --- ecosystem dynamics. --- ecosystem size. --- ecosystem stability. --- ecosystems. --- eigenvalue. --- equilibrium steady state. --- equilibrium. --- excitable interactions. --- food chains. --- food web structure. --- food web theory. --- food webs. --- foraging. --- generalism. --- generalists. --- grazing. --- habitat. --- human impacts. --- interaction strength. --- intraguild predation model. --- lags. --- lake trout. --- local stability analysis. --- matrix theory. --- microcosm experiments. --- mobile adaptive predators. --- modular theory. --- module. --- motif. --- natural ecosystems. --- nature. --- nonequilibrium dynamics. --- nonequilibrium steady state. --- nonexcitable interactions. --- nutrient decomposition. --- nutrient recycling. --- nutrients. --- omnivory. --- oscillation. --- oscillatory decay. --- phase space. --- population dynamics. --- population growth. --- population models. --- population structure. --- populations. --- resources. --- space. --- species. --- stage structure. --- stage-structured lags. --- subsidies. --- subsystems. --- sustainability. --- time series. --- trade-offs. --- traits. --- whole-community approach. --- whole-system matrix.