483 results match your criteria: "School for Environment and Sustainability[Affiliation]"

Effects of socioeconomic and human-modified landscape variables on medicinal species richness at a macroscale: the case of the Caatinga, Brazil.

J Ethnobiol Ethnomed

January 2025

Programa de Pós-Graduação em Etnobiologia e Conservação da Natureza, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil.

Background: Ethnobiological studies at local scales have shown that knowledge of medicinal species tends to decrease as socioeconomic status and the extent of human-modified landscapes increase. However, it remains largely unknown whether these same factors can predict knowledge of useful species at broader scales and whether their interaction might create scenarios that enhance knowledge of medicinal species.

Methods: To address this, we tested whether knowledge of woody medicinal species-measured as the number of species known-is influenced by socioeconomic status, human-modified landscapes, and their interaction.

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Recent widespread reductions in body size across species have been linked to increasing temperatures; simultaneous increases in wing length relative to body size have been broadly observed but remain unexplained. Size and shape may change independently of one another, or these morphological shifts may be linked, with body size mediating or directly driving the degree to which shape changes. Using hierarchical Bayesian models and a morphological time series of 27 366 specimens from five North American migratory passerine bird species, we tested the roles that climate and body size have played in shifting wing length allometry over four decades.

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The use of transportation network companies (TNCs), such as Uber and Lyft, is widespread in many US cities, including those with good transit. However, transit use produces smaller externalities relative to private vehicles and is cheaper but can increase travel time. Here we compare the benefits and costs of real TNC trips in Chicago to a counterfactual in which they are performed by transit.

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In ecology, Alan Turing's proposed activation-inhibition mechanism has been abstracted as corresponding to several ecological interaction types to explain pattern formation in ecosystems. Consumer-resource interactions have strong theoretical arguments linking them to both the Turing mechanism and pattern formation, but there is little empirical support to demonstrate these claims. Here, we connect several lines of evidence to support the proposition that consumer-resource interactions can create empirically observed spatial patterns through a mechanism similar to Turing's theory.

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Meta-analysis reveals global variations in plant diversity effects on productivity.

Nature

January 2025

Faculty of Natural Resources Management, Lakehead University, Thunder Bay, Ontario, Canada.

Positive effects of plant diversity on productivity have been globally demonstrated and explained by two main effects: complementarity effects and selection effects. However, plant diversity experiments have shown substantial variation in these effects, with driving factors poorly understood. On the basis of a meta-analysis of 452 experiments across the globe, we show that productivity increases on average by 15.

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Background: Rapid morphological change is emerging as a consequence of climate change in many systems. It is intuitive to hypothesize that temporal morphological trends are driven by the same selective pressures that have established well-known ecogeographic patterns over spatial environmental gradients (e.g.

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Integrating crowdsourced data in the built environment studies: A systematic review.

J Environ Manage

January 2025

Department of Landscape Architecture, University of Nevada, Las Vegas, NV, USA. Electronic address:

The integration of crowdsourced data has become central to contemporary built environment studies, driven by the rapid growth in digital technologies and participatory approaches that characterize modern urbanism. Despite its potential, a systematic framework for its analysis remains underdeveloped. This review, conducted in accordance with the PRISMA protocol, examines the use of crowdsourced data in shaping the built environment, scrutinizing its applications, crowdsourcing techniques, methodologies, and comparison with other big data forms.

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Aim(s): This discursive article aims to examine how systemic factors (both) reproduce the structure of settler colonialism and influence health outcomes among Indigenous peoples in the United States through settler colonial determinants of Indigenous health (SCDoIH).

Design: Discursive paper.

Methods: This discursive paper demonstrates how settler colonialism and health relate to each other within a nursing context.

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Extreme rainfall disproportionately impacts E. coli concentrations in Texas recreational waterbodies.

Sci Total Environ

January 2025

Department of Human Ecology, University of California, Davis, CA 95616, United States. Electronic address:

Waterborne pathogen contamination poses a significant threat to water resources globally and the exposure to waterborne pathogen contamination is widely recognized as unevenly distributed. Extreme weather events could exacerbate inequalities in waterborne disease as climate variability continues to escalate. However, there is a limited understanding of how extreme rainfall affects E.

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Anthropogenic landscape modification may lead to the proliferation of a few species and the loss of many. Here we investigate mechanisms and functional consequences of this winner-loser replacement in six human-modified Amazonian and Atlantic Forest regions in Brazil using a causal inference framework. Combining floristic and functional trait data for 1,207 tree species across 271 forest plots, we find that forest loss consistently caused an increased dominance of low-density woods and small seeds dispersed by endozoochory (winner traits) and the loss of distinctive traits, such as extremely dense woods and large seeds dispersed by synzoochory (loser traits).

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Hope is a future-oriented emotion that attunes people to the possibility of positive change, and thus could potentially catalyse societal engagement with climate change. A recent meta-analysis suggests that the relationship between hope and climate action is most robust when the target of hope is climate engagement (i.e.

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A perspective on the algae-derived dissolved organic matter and its dynamic influence on the aggregation of nanoplastics in eutrophic waters.

Chemosphere

December 2024

National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, Wenzhou, 325035, China. Electronic address:

Article Synopsis
  • The behavior of nanoplastics (NPs) in water is heavily influenced by dissolved organic matter (DOM), which can change their stability.
  • DOM comes mainly from phytoplankton and varies in its structure and properties during algal blooms, impacting NPs' aggregation.
  • The study emphasizes the need for more detailed research on how these molecular changes affect NPs, particularly in eutrophic waters faced with algal growth.
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  • The study investigated how neighborhood factors linked to child maltreatment in urban areas also impact rural areas, using child welfare data from Michigan.
  • Researchers employed factor analysis to explore relationships between economic disadvantage, residential instability, and childcare burden in both metro and nonmetro census tracts.
  • Results indicated some similarities in factors affecting child maltreatment, like neighborhood poverty and single-parent households, while also highlighting unique aspects in rural areas that need further exploration.
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Rising temperatures due to climate change are predicted to threaten the persistence of wild animals, but there is little evidence that climate change has pushed species beyond their thermal tolerance. The immune system is an ideal avenue to assess the effects of climate change because immune performance is sensitive to changes in temperature and immune competency can affect reproductive success. We investigate the effect of rising temperatures on a biomarker of nonspecific immune performance in a wild population of capuchin monkeys and provide compelling evidence that immune performance is associated with ambient temperature.

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Long-term stability of productivity increases with tree diversity in Canadian forests.

Proc Natl Acad Sci U S A

December 2024

Faculty of Natural Resources Management, Lakehead University, Thunder Bay, ON P7B 5E1, Canada.

Article Synopsis
  • The study investigates the relationship between tree diversity and the stability of forest productivity over long periods, using data from 7,500 natural forest plots in Canada.
  • Findings reveal that greater tree diversity—based on functional, phylogenetic, and taxonomic measures—leads to increased temporal stability in forest productivity, which is crucial for ecosystem health.
  • Specifically, higher functional diversity can boost productivity and stability metrics significantly, underscoring the importance of maintaining diverse forests for long-term ecological benefits.
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Article Synopsis
  • Plant functional traits are important for understanding how different species acquire resources, with separate factors for aboveground (leaves) and belowground (roots) traits, differing from broader trends.
  • The study focuses on intraspecific variation within seedlings, which experience high mortality, and aims to uncover the relationship between these seedlings' traits and factors like soil nutrients and light.
  • Results indicated that leaf and root traits operate on different axes, highlighting an emerging collaboration axis belowground, and suggest limited links between traits and environmental factors, indicating seedlings face specific constraints that may affect their adaptation to changing conditions.
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This study develops a 73-year dataset of water balance components from 1950 to 2022 for the Laurentian Great Lakes Basins. This is carried out using the Large Lakes Statistical Water Balance Model (L2SWBM), which provides a Bayesian statistical framework that assimilates binational input datasets sourced from the United States and Canada. The L2SWBM infers feasible water balance component estimates through this Bayesian framework by constraining the output with a standard water balance equation.

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Metagenomic insights into inhibition of soil microbial carbon metabolism by phosphorus limitation during vegetation succession.

ISME Commun

January 2024

Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, Chongqing 400715, China.

Article Synopsis
  • Growing awareness of regenerative practices is crucial for addressing biodiversity loss and climate change, but we currently lack detailed knowledge about how microbial communities change during vegetation restoration.
  • A study conducted in Southwestern China revealed that as vegetation matures, soil phosphorus levels decrease, highlighting phosphorus as a key nutrient limitation, while the genetic capacity for phosphorus acquisition in microbes increases.
  • The research found that microbial phosphorus limitation significantly impacts carbon metabolism, showing a decrease in enzyme gene abundance for carbon breakdown, yet microbes adapt by enhancing genes that help degrade tougher organic materials as a strategy to access phosphorus.
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Background: Between 2006 and 2016 the prevalence of overweight and obesity among children and adolescents aged 5-19 years in Peru increased from 22.7 to 27.0%.

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As biodiversity loss continues, targeted conservation interventions are increasingly necessary. Stemming species loss requires mechanistic understanding of the processes governing population dynamics. However, this information is unavailable for most animals because it requires data that are difficult to collect using traditional methods.

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Article Synopsis
  • Changes in freshwater and marine ecosystems, driven by unexpected human actions, are creating complex management challenges that need new decision-making strategies.
  • This study connects a predictive hypoxia model with fishery data from Lake Erie over nearly a century to highlight the tradeoffs between nutrient management and fishery health.
  • The findings emphasize the necessity for adaptive, ecosystem-based management practices that can address ongoing climate change and support both water quality and fishing industry goals.
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Environmental justice of Texas recreational water quality - The disproportionate E. coli levels and trends.

J Environ Manage

November 2024

Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China.

The presence of pathogens is one of the leading causes of stream water quality impairment in the US. Escherichia coli (E. coli) is a fecal pathogen indicator and also signals the presence of more pathogenic microbes.

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Article Synopsis
  • Rising levels of carbon dioxide (CO2) and nitrogen (N) in the atmosphere impact plant communities, with nitrogen deposition leading to local biodiversity loss.
  • An open-air experiment over 24 years showed that while nitrogen initially had a smaller effect on species richness at higher CO2 levels, this reversed over time, with elevated CO2 increasing the negative impact of nitrogen on plant diversity.
  • The study suggests that increased levels of CO2 could worsen the detrimental effects of nitrogen on grassland biodiversity, raising concerns for global conservation efforts.
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Many terrestrial plant communities, especially forests, have been shown to lag in response to rapid climate change. Grassland communities may respond more quickly to novel climates, as they consist mostly of short-lived species, which are directly exposed to macroclimate change. Here we report the rapid response of grassland communities to climate change in the California Floristic Province.

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The Kellogg Biological Station Long-term Agroecosystem Research site (KBS LTAR) joined the national LTAR network in 2015 to represent a northeast portion of the North Central Region, extending across 76,000 km of southern Michigan and northern Indiana. Regional cropping systems are dominated by corn (Zea mays)-soybean (Glycine max) rotations managed with conventional tillage, industry-average rates of fertilizer and pesticide inputs uniformly applied, few cover crops, and little animal integration. In 2020, KBS LTAR initiated the Aspirational Cropping System Experiment as part of the LTAR Common Experiment, a co-production model wherein stakeholders and researchers collaborate to advance transformative change in agriculture.

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