Ecological Theory Research Articles

Reporting guidelines for terrestrial respirometry: Building openness, transparency of metabolic rate and evaporative water loss data

Respirometry is an important tool for understanding whole-animal energy and water balance in relation to the environment. Consequently, the growing number of studies using respirometry over the last decade warrants reliable reporting and data sharing for effective dissemination and research synthesis. We provide a checklist guideline on five key sections to facilitate the transparency, reproducibility, and replicability of respirometry studies: 1) materials, set up, plumbing, 2) subject conditions/maintenance, 3) measurement conditions, 4) data processing, and 5) data reporting and statistics, each with explanations and example studies. Transparency in reporting and data availability has benefits on multiple fronts. Authors can use this checklist to design and report on their study, and reviewers and editors can use the checklist to assess the reporting quality of the manuscripts they review. Improved standards for reporting will enhance the value of primary studies and will greatly facilitate the ability to carry out higher quality research syntheses to address ecological and evolutionary theories.

Socio-demographic And Household Sanitation Factors Affect the Quality of Life

Background: In any society, it is widely accepted that the productive age population's Quality of life (QoL) determines the nation's development. As Indonesia is a developing country, an assessment of the QoL of this group needs concern. Empirical studies have found various factors related to quality of life. However, ecological theory states that environmental factors, including household factors, influence individuals. This study investigates factors associated with the quality of life among productive ages in the general population, including individual factors and home sanitation. Methods: A population-based cross-sectional study was carried out in 23 provinces in Indonesia. The modified 38-item Indonesia Family Life Survey (IFLS) questionnaire measured quality of life. The total number of productive age people aged 15-64 was 14953 subjects, and 6806 households were used as the population. Determinant factors tested in this study are socio-demographics (age, gender, education, marital status, and primary activity in the past week) and home sanitation. Data analysis was conducted using multilevel logistic regression. Results: 50.96% (7.620) of productive age have a good quality of life. The study confirmed that age, gender, marital status, education, and primary activity were significant to the QoL. The main finding of this study was that home sanitation had a contextual effect on productive age’s quality of life (ICC = 32.4%, CI = 0.289 – 0.520). Conclusion: Investigation of essential factors related to QoL determines appropriate policy programs and interventions in an effort to improve quality of life. Evaluation of quality of life should concern home sanitation. Sanitation Affects broader aspects of physical and mental health.

Pre-contact Indigenous fire stewardship: a research framework and application to a Pacific Northwest temperate rainforest

Fire is a key disturbance process that shapes the structure and function of montane temperate rainforest in the Pacific Northwest (PNW). Recent research is revealing more frequent historical fire activity in the western central Cascades than expected by conventional theory. Indigenous peoples have lived in the PNW for millennia. However, Indigenous people's roles in shaping vegetation mosaics in montane temperate forests of the PNW has been overlooked, despite archaeological evidence of long-term, continuous human use of these landscapes. In this paper, we present a generalizable research framework for overcoming biases often inherent in historical fire research. The framework centers Indigenous perspectives and ethnohistory, leveraging theory in human ecology and archaeology to interpret fire histories. We apply this framework to place-based, empirical evidence of Indigenous land use and dendroecological fire history. Our framework leads us to conclude that the most parsimonious explanation for the occurrence of historical high fire frequency in the western Cascades is Indigenous fire stewardship. Further, our case study makes apparent that scholars can no longer ignore the role of Indigenous people in driving montane forest dynamics in the PNW.

Environmental Crisis and Images of Desire in Paolo Bacigalupi’s The Windup Girl and Pump Six and Other Stories

In the wake of mounting warnings from ecologists and other scientists, contemporary fiction writers have been alerting their readers to the environmental crisis as manifested in droughts, floods, wildfires, polar ice cap melting, rising sea levels, air, water, and soil pollution, species extinction, and a host of other ills. Within the realm of contemporary science fiction, Paolo Bacigalupi, a highly acclaimed American author, describes a world in the throes of catastrophic ecological change. Through his meticulously crafted narratives, Bacigalupi delivers a prophetic message, delineating environmental crises within the context of a posthuman world.Employing pertinent concepts derived from object-oriented ecological theory, this paper employs Jane Bennett’s notion of “vibrant matter”, Timothy Morton’s concept of “hyperobjects”, Stacy Alaimo’s theory of “trans-corporeality”, and Rob Nixon’s idea of “slow violence” to see how Bacigalupi engages in current discourses on the environmental crisis and images of desire in The Windup Girl and Pump Six and Other Stories. Bacigalupi presents grotesqueries against a background of multiple, post-apocalyptic disasters. While societal elites indulge in hedonistic experimentation, mega-corporations engage in genetic manipulation on humans, plants, and animals in pursuit of progress, aesthetic trends, profit, or survival. Humanity’s ongoing destruction of the planet in service to a consumer culture, along with the disastrous results of attempting scientific “fixes” without understanding the interconnecting causes or the scale of the phenomenon they are trying to “fix”, beg the question of whether science and technology will be able to prevent or ameliorate future ecological crises, or inadvertently precipitate even graver predicaments. Bacigalupi’s critique, illustrated through grim narratives replete with macabre examples, serves as a poignant exhortation, urging humans to meditate on and then prevent or mitigate the impending disasters of our own making.

Individual energetics scale up to community coexistence: Movement, metabolism and biodiversity dynamics in fragmented landscapes.

Unravelling the intricate mechanisms that govern community coexistence remains a daunting challenge, particularly amidst ongoing environmental change. Individual physiology and metabolism are often studied to understand the response of individual animals to environmental change. However, this perspective is currently largely lacking in community ecology. We argue that the integration of individual metabolism into community theory can offer new insights into coexistence. We present the first individual-based metabolic community model for a terrestrial mammal community to simulate energy dynamics and home range behaviour in different environments. Using this model, we investigate how ecologically similar species coexist and maintain their energy balance under food competition. Only if individuals of different species are able to balance their incoming and outgoing energy over the long-term will they be able to coexist. After thoroughly testing and validating the model against real-world patterns such as of home range dynamics and field metabolic rates, we applied it as a case study to scenarios of habitat fragmentation - a widely discussed topic in biodiversity research. First, comparing single-species simulations with community simulations, we find that the effect of habitat fragmentation on populations is strongly context-dependent. While populations of species living alone in the landscape were mostly positively affected by fragmentation, the diversity of a community of species was highest under medium fragmentation scenarios. Under medium fragmentation, energy balance and reproductive investment were also most similar among species. We therefore suggest that similarity in energy balance among species promotes coexistence. We argue that energetics should be part of community ecology theory, as the relative energetic status and reproductive investment can reveal why and under what environmental conditions coexistence is likely to occur. As a result, landscapes can potentially be protected and designed to maximize coexistence. The metabolic community model presented here can be a promising tool to investigate other scenarios of environmental change or other species communities to further disentangle global change effects and preserve biodiversity.

Conserving ecosystem integrity: Ecological theory as a guide for marine protected area monitoring.

Global policies increasingly focus on the importance of maintaining or improving the integrity of ecosystems, but defining, assessing, and monitoring integrity in marine protected areas (MPAs) remains a challenge. In this paper, we conceptualized ecological integrity along dimensions of heterogeneity and stability containing seven components: physical structure, diversity, function, persistence, resistance, resilience, and natural variability. Through a structured literature search, we identified indicators and metrics used for quantifying ecosystem status components in the marine environment, then reviewed MPA management plans worldwide for inclusion of these components. We evaluated 202 papers applying 83 ecological indicators built from 72 metrics. Ecosystem components were most comprehensively addressed by metrics of taxa presence, organisms count, and area occupied by benthic organisms, and community structure, biomass, and percent cover indicators. Of the 557 MPA management plans we reviewed globally, 93% used at least one ecosystem status term or its synonym in an ecologically relevant context, but 39% did not address any components of stability. In particular, resistance was mentioned in only 1% of management plans, but in some cases it may be inferred from indicators and metrics used to track the best addressed component in management plans, diversity. Plans for MPAs with both an ecological/biological purpose and a research and education purpose contained ecosystem status terms more frequently than other plans, suggesting that engagement with the scientific community may have improved the application of these terms. An improved understanding of how to operationalize and measure ecological integrity can help MPA monitoring and management.

Different contexts - different stories: Adolescents' experiences of how ethnicity is addressed in schools and sports and on social media in Sweden.

Ethnicity plays a significant role in adolescents' everyday lives, but there is a limited understanding of adolescents' own experiences with how ethnicity is addressed in different contexts. Three contexts of importance during adolescence are investigated in the present study: schools, social media, and sports. A closer contextual examination has the potential to provide insights into how multiple contexts shape experiences with ethnicity. The aim of the study was to understand more about adolescents' experiences of how ethnicity is addressed in schools, on social media, and in sports. Six focus groups with a total of 21 adolescents (Mage = 14.5, SDage = 0.5, female = 76%) discussed their experiences. Data were transcribed verbatim and analyzed using a close-to-data, inductive thematic analysis. The analysis resulted in three main themes and seven subthemes, indicating that ethnicity was addressed differently in the three studied contexts. For the main theme of how ethnicity was addressed in schools, the subthemes were: Addressing ethnicity is important; Ethnicity is addressed through stereotypes and Everyday racism. The main theme of ethnicity on social media consisted of two subthemes: Sharing ethnic and cultural narratives and Hateful remarks. The main theme of ethnicity in sports also consisted of two subthemes: On equal terms and Clear consequences for racist behaviors. To better understand the multiple contexts, the results are discussed guided by the ecological systems theory. The adolescents highlighted that there are many benefits of addressing ethnicity and that it is important to do so in multiple contexts of adolescent life, just not in the same way. When ethnicity was addressed carelessly, such as through stereotypes or via racism masked as jokes, it had the potential to cause harm. When ethnicity was addressed with reflection, it instead had the potential to build understanding, lead to positive experiences, and provide learning opportunities.

Microsystem and intrapersonal variables associated with middle school achievement: The important role of engagement

Through an ecological theory lens, the purpose of the current study was to examine variables that most strongly influence middle school academic achievement among a sample of 240 sixth-eighth graders in the Midwest. The purpose was to explore whether student academic organizational practices uniquely predicted middle school achievement, and whether intrapersonal variables (engagement, metacognition, and student organization/academic practices) moderated relationships between contextual factors (parent, teacher, and peer support) and achievement. The combination of contextual and intrapersonal variables accounted for variance in achievement. Engagement was the intrapersonal factor that consistently contributed to the models. Metacognition moderated peer support and academic achievement. When school engagement becomes a primary focus, versus only attempting to remediate metacognitive and organizational deficits, this can pave a more accessible path for both educators and parents to teach other skills that are essential to educational attainment and occupational success. Implications for interventions targeting student participation, attention, and effort are discussed.

Landscape configuration can flip species-area relationships in dynamic meta-food-webs.

Spatial and trophic processes profoundly influence biodiversity, yet ecological theories often treat them independently. The theory of island biogeography and related theories on metacommunities predict higher species richness with increasing area across islands or habitat patches. In contrast, food-web theory explores the effects of traits and network structure on coexistence within local communities. Exploring the mechanisms by which landscape configurations interact with food-web dynamics in shaping metacommunities is important for our understanding of biodiversity. Here, we use a meta-food-web model to explore the role of landscape configuration in determining species richness and show that when habitat patches are interconnected by dispersal, more species can persist on smaller islands than predicted by classical theory. When patch sizes are spatially aggregated, this effect flattens the slope of the species-area relationship. Surprisingly, when landscapes have random patch-size distributions, the slope of the species-area relationships can even flip and become negative. This could be explained by higher biomass densities of lower trophic levels that then support species occupying higher trophic levels, which only persist on small and well-connected patches. This highlights the importance of simultaneously considering landscape configuration and local food-web dynamics to understand drivers of species-area relationships in metacommunities.This article is part of the theme issue 'Diversity-dependence of dispersal: interspecific interactions determine spatial dynamics'.

Rethinking child aggression beyond traditional labels: A ‘shared victimhood’ approach to child-to-child violence in Nigeria

Child-to-child violence is a pervasive problem in schools and communities worldwide. Traditional models for understanding this violence often present a clear dichotomy between aggressive children and passive victims. However, this binary approach has proven largely inadequate in recognizing the power dynamics and potential victimization of both parties involved, resulting in interventions that have little to no success in rehabilitation. Alternatively, this paper proposes a "shared victimhood" approach, arguing that violent behavior may result from a cycle of negative experiences in which both the aggressor and the victim are positioned as products of their environment. In essence, the paper explores the limitations of binary labeling and the potential of the shared victimhood framework. It reviews relevant research on the ecological factors influencing child aggression, highlighting the impact of family background, early childhood experiences, and social learning. Drawing on ecological theory, the paper emphasizes the importance of early intervention and prevention strategies that address the root causes of aggression while fostering empathy and resilience in children. It also recommends that states in Nigeria establish LGA-specific child counseling centers and rehabilitation facilities attached to the health care system that cater exclusively to the needs of abused children. Finally, the paper suggests areas for future research to further develop and refine the shared victimhood perspective.

Evolutionary ecology of dispersal in biodiverse spatially structured systems: what is old and what is new?

Dispersal is a well-recognized driver of ecological and evolutionary dynamics, and simultaneously an evolving trait. Dispersal evolution has traditionally been studied in single-species metapopulations so that it remains unclear how dispersal evolves in metacommunities and metafoodwebs, which are characterized by a multitude of species interactions. Since most natural systems are both species-rich and spatially structured, this knowledge gap should be bridged. Here, we discuss whether knowledge from dispersal evolutionary ecology established in single-species systems holds in metacommunities and metafoodwebs and we highlight generally valid and fundamental principles. Most biotic interactions form the backdrop to the ecological theatre for the evolutionary dispersal play because interactions mediate patterns of fitness expectations across space and time. While this allows for a simple transposition of certain known principles to a multispecies context, other drivers may require more complex transpositions, or might not be transferred. We discuss an important quantitative modulator of dispersal evolution-increased trait dimensionality of biodiverse meta-systems-and an additional driver: co-dispersal. We speculate that scale and selection pressure mismatches owing to co-dispersal, together with increased trait dimensionality, may lead to a slower and more 'diffuse' evolution in biodiverse meta-systems. Open questions and potential consequences in both ecological and evolutionary terms call for more investigation. This article is part of the theme issue 'Diversity-dependence of dispersal: interspecific interactions determine spatial dynamics'.

Active Engagement in Retirement: Factors That Influence the Participation of Older People in Community Volunteering

Although older adults participating in volunteering promotes “active ageing” and reduces social service burden, not many retied people in China participate in volunteering. Utilizing data from semi-structured interviews with 15 retired individuals in Beijing, this research explores the factors influencing their involvement in community volunteer services. Informed by resource theory and social ecological system theory, a hybrid three-level social ecological systems model is developed following thematic analysis. At the micro-level, foundational factors for volunteering are their human capital, including good health status, ample free time, and satisfaction with pensions. At the meso-level, social capital from family and peers provides essential information and support, while a cohesive community environment fostered through community and volunteer management enhances the willingness to volunteer. At the macro-level, CPC ideologies and governmental policies nurture a culture of volunteerism that facilitates community involvement. The study also investigates interactions across these levels: the microsystem and mesosystem mutually enhance human and social capital, whereas the macrosystem and mesosystem reflect the reciprocal influence of cultural on social capital. Recommendations are offered to increase retired people’s participation in community volunteering, emphasizing community management and governmental policy adjustments.

Ecological theater, evolutionary play, and collective behavior

Ecological theater, evolutionary play, and collective behavior

The Relationship between Organizational Climate and Teaching Innovation among Preschool Teachers: The Mediating Effect of Teaching Efficacy.

Preschool teachers' teaching innovation is an important factor in enhancing teaching quality and improving children's creativity. Based on ecological systems theory and self-determination theory, the purpose of this study was to investigate the relationship between kindergartens' organizational climate and preschool teachers' teaching innovation and the mediating role of teaching efficacy in it. In this study, an online questionnaire was distributed to 2092 preschool teachers from different provinces using an Organizational Climate Scale, Teaching Efficacy Scale, and Teaching Innovation Scale. The study used SPSS 25.0 software and the SPSS PROCESS macro program for data processing. The results showed that there was a positive correlation among kindergartens' organizational climate, teaching efficacy, and teaching innovation, and that kindergartens' organizational climate not only directly and positively predicted teaching innovation, but also indirectly predicted teaching innovation through the mediating role of teaching efficacy. The study explored the internal and external influences on preschool teachers' teaching innovation and revealed their underlying mechanisms, providing theoretical support for research and educational practice on preschool teachers' teaching innovation and children's creativity.

Student-centered teaching across OECD countries: An ecological perspective

Student-centered teaching (SCT) is recognized worldwide as a best-practice instructional method. This study, guided by Bronfenbrenner's ecological theory, investigates the influence of country, school, classroom, and teacher factors on SCT. Using a large international education dataset, we examine how the Human Development Index, Power Distance Index, and Individualism Index affect SCT at the national level. School dynamics like innovativeness, teacher cooperation, and teacher-student relationships are also considered, along with classroom autonomy and teachers' self-efficacy at the classroom- and teacher-level respectively. Combining advanced modeling techniques, the results show that power distance and individualism interact to influence SCT. Additionally, school innovativeness, teacher cooperation, and teacher self-efficacy significantly predict SCT at both school and teacher levels.

Effect of Early Intervention Programs on Developmental Delays in Infants and Toddlers in Malawi

Purpose: The aim of the study was to analyze the effect of early intervention programs on developmental delays in infants and toddlers in Malawi. Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries. Findings: Early intervention programs in Malawi for developmental delays in infants and toddlers have shown significant positive outcomes. These programs, integrated into community healthcare services, focus on early identification, assessment, and tailored interventions. They improve motor skills, language development, cognitive abilities, and social-emotional skills. Parental involvement is crucial, with caregivers educated to support developmental progress at home. Unique Contribution to Theory, Practice and Policy: Ecological systems theory, social learning theory & bioecological model of development may be used to anchor future studies on effect of early intervention programs on developmental delays in infants and toddlers in Malawi. Enhance the involvement of parents and caregivers in EIPs through structured training and support. Advocate for increased funding and resource allocation to support the expansion and sustainability of EIPs. Policy recommendations should focus on securing public and private investments in early childhood development, prioritizing programs that demonstrate evidence-based effectiveness.

Relationship between Access to Clean Water and Child Growth and Development in Kenya

Purpose: The aim of the study was to analyze the relationship between access to clean water and child growth and development in Kenya. Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries. Findings: Access to clean water significantly impacts child growth and development in Kenya by reducing waterborne diseases like diarrhea, improving hygiene practices, and ensuring adequate hydration. Children with reliable access to clean water experience better nutritional outcomes and enhanced immune function, crucial for their physical growth and cognitive development. Unique Contribution to Theory, Practice and Policy: Ecological systems theory (Bronfenbrenner), health belief model (Rosenstock) & social determinants of health (SDH) theory may be used to anchor future studies on relationship between access to clean water and child growth and development in Kenya. Expand the implementation of effective water purification technologies and community water supply projects in resource-constrained environments. Advocate for integrated policies that prioritize water security alongside nutrition-sensitive interventions. Policies should support multi-sectoral collaboration between health, water, and sanitation sectors to address the complex interplay between water access and child nutrition.

Boosting biodiversity monitoring using smartphone-driven, rapidly accumulating community-sourced data.

Comprehensive biodiversity data is crucial for ecosystem protection. The Biome mobile app, launched in Japan, efficiently gathers species observations from the public using species identification algorithms and gamification elements. The app has amassed >6 million observations since 2019. Nonetheless, community-sourced data may exhibit spatial and taxonomic biases. Species distribution models (SDMs) estimate species distribution while accommodating such bias. Here, we investigated the quality of Biome data and its impact on SDM performance. Species identification accuracy exceeds 95% for birds, reptiles, mammals, and amphibians, but seed plants, molluscs, and fishes scored below 90%. Our SDMs for 132 terrestrial plants and animals across Japan revealed that incorporating Biome data into traditional survey data improved accuracy. For endangered species, traditional survey data required >2000 records for accurate models (Boyce index ≥ 0.9), while blending the two data sources reduced this to around 300. The uniform coverage of urban-natural gradients by Biome data, compared to traditional data biased towards natural areas, may explain this improvement. Combining multiple data sources better estimates species distributions, aiding in protected area designation and ecosystem service assessment. Establishing a platform for accumulating community-sourced distribution data will contribute to conserving and monitoring natural ecosystems.

A perspective on psychological factors affecting the emotional labor of teachers

Several psychological factors are discussed in relation to teachers’ emotional labor (EL). Ecological systems theory (EST) is used in relation to the role of emotional intelligence (EI) to provide a perspective on ways to conceptualize how to address secondary traumatic stress (STS) risk among teachers. An international selection of the literature is synthesized in relation to the factors that may affect EL in relation to STS risk among teachers who have students with adverse childhood experiences (ACEs). The concept of EI is central to this discussion of theoretical relationships between EI and STS risk relevant to teachers’ EL. While there is much literature on Bronfenbrenner’s EST and Gardner’s multiple intelligences (MI) theory separately, there is room in the literature for exploring EST to contextualize the topic of STS risk as it relates to the concept of EI. The purpose of this study is to discuss allostatic load factors that may affect teachers’ EL and to discuss potential ways to acknowledge EL.

Predicting the Potential Distribution of Hypericum perforatum under Climate Change Scenarios Using a Maximum Entropy Model.

H. perforatum, as one of the Traditional Chinese Medicinal materials, possesses a variety of pharmacological activities and high medicinal value. However, in recent years, the wild resources of H. perforatum have been severely depleted due to global climate change and human activities, and artificial cultivation faces problems such as unstable yield and active ingredient content. This poses a serious obstacle to the development and utilization of its resources. Therefore, this experiment took H. perforatum as the research object and used 894 distribution records of H. perforatum and 36 climatic environmental factors, using the MaxEnt model and GIS technology to explore the main climatic factors affecting the distribution of H. perforatum. Additionally, by utilizing the principles of ecological niche theory, the potential suitable distribution regions of H. perforatum across past, present, and future timelines were predicted, which can ascertain the dynamics of its spatial distribution patterns and the trend of centroid migration. The results indicate that the main environmental factors affecting the geographical distribution of H. perforatum are solar radiation in April (Srad4), solar radiation in September (Srad9), mean temperature of driest quarter (Bio9), solar radiation in November (Srad11), annual mean temperature (Bio1), and annual precipitation (Bio12). Under future climate scenarios, there is a remarkable trend of expansion in the suitable distribution areas of H. perforatum. The centroid migration indicates a trend of migration towards the northwest direction and high-altitude areas. These results can provide a scientific basis for formulating conservation and sustainable use management strategies for H. perforatum resources.