An official website of the United States government
More women than men in the US graduate college, but women constitute only 16% of the engineering workforce [1]. Women frequently attribute their lack of persistence in engineering to a chilly academic climate [2]. Researchers have suggested that developing a robust engineering identity could moderate a climate effect and support improved retention and graduation of female engineers [2]. However, there is little empirical data on interrelationships among gender, perceived academic climate in engineering programs, engineering identity, and belonging to an engineering community. We drew on social identity theory and extant literature to develop four research questions: 1) Are there any differences between men and women regarding perceived academic climate, sense of belonging, and engineering identity? 2) Does academic climate predict engineering identity in the same way for women and men? 3)Does sense of belonging mediate the relationship between perceived academic climate and engineering identity? 4) Do engineering students who are women demonstrate different relationships among perceived climate, engineering identity, and belongingness from men? We used survey data from a multi-year NSF-funded project (Award # 1726268, #1726088, and #1725880/2033129) that incorporated experimental course-based interventions to build an inclusive curriculum. Surveys were administered at the beginning and end of the semester. We found that at the end of the semester women engineering undergraduates reported lower engineering identity though the initial engineering identity, perceived academic climate, and sense of belonging were the same for both men and women engineering undergraduates. Multiple regression analyses with 601 first-year engineer majors (21% female) indicated perceived climate and gender accounted for 48% of engineering identity variability. The interaction between perceived climate and gender on engineering identity was not statistically significant. Mediation analysis revealed that sense of belonging (b=0.42, 95% CI [0.30, 0.53]) mediated the relationship between perceived climate and engineering identity for both males and females. Sense of belonging was critical in engineering identity. Moderated mediation analysis indicated gender did not moderate the indirect effect of perceived climate on engineering identity through a sense of belonging.
more »
« less
The role of gender and ethnicity in perceived public support and sense of belonging among resource management professionals in Oregon and Washington, USA
Abstract Federal and state land agencies lack diversity at the natural resource manager level, in turn limiting the agencies' capacity for creative problem solving needed for complex and wicked environmental problems. Diverse representation is imperative to increase public support and trust in natural resource management.We used an online survey method to examine the relationship and experiences between independent demographic variables (e.g. gender, ethnicity and years worked in natural resources) and two dependent variables: (1) perceived public support and (2) sense of belonging for resource management professionals in the Pacific Northwest, USA.We find in general, that gender is associated with how one progresses through a career in natural resource management. As years in natural resource management increases, sense of belonging decreases for women and remains constant for men. Similarly, as years in natural resource management increases, perceived public support increases for men and remains constant for women.Given that ample past research suggests strong links between sustainable management and diverse perspectives, this study has implications for addressing our current and future natural resource management challenges. Read the freePlain Language Summaryfor this article on the Journal blog.
more »
« less
- Award ID(s):
- 2025755
- PAR ID:
- 10640572
- Publisher / Repository:
- Wiley Blackwell (John Wiley & Sons)
- Date Published:
- Journal Name:
- People and Nature
- Volume:
- 7
- Issue:
- 9
- ISSN:
- 2575-8314
- Format(s):
- Medium: X Size: p. 2085-2093
- Size(s):
- p. 2085-2093
- Sponsoring Org:
- National Science Foundation
More Like this
-
-
Abstract Increases in nitrogen (N) and phosphorus (P) availability are changing animal communities, partly by altering stoichiometric imbalances between consumers and their food. Testing relationships between resource stoichiometry and consumer assemblage structure requires ecosystem‐level manipulations that have been lacking to date.We analysed patterns of macroinvertebrate community composition in five detritus‐based headwater streams subject to experimental whole‐stream N and P additions that spanned a steep gradient in dissolved N:P ratio (2:1, 8:1, 16:1, 32:1, 128:1) over 2 years, following a 1‐year pre‐treatment period.We predicted that shifts in leaf litter stoichiometry would drive overall patterns of community composition via greater responses of shredders to enrichment than other taxa, as shredders dominate primary consumer biomass and experience larger consumer–resource elemental imbalances than other functional groups in stream ecosystems. Specifically, we expected litter C:P to be a significant predictor of shredder biomass given the greater relative imbalances between shredder and litter C:P than C:N. Finally, we tested whether shredder responses to enrichment were related to other taxon‐level traits, including body size and stoichiometry, larval life span and growth rate.Whole‐community composition shifted similarly across the five streams after enrichment, largely driven by increased shredder and predator biomass. These shifts were limited to the autumn/winter seasons and related to decreased leaf litter C:P, highlighting important links between the quality of seasonal litter subsidies and community phenology.Among 10 taxa that drove structural shifts, two declined while other taxa from the same functional/taxonomic groups responded positively, suggesting that specific life‐history traits may determine sensitivity to enrichment.Increases in total shredder biomass, and in biomass of several common shredders, were associated with lower litter C:P. Body C:P did not predict shredder response to enrichment. However, weak negative relationships between shredder response and body size, and larval life span, suggest that small‐bodied and short‐lived taxa may be more responsive to shifting resource stoichiometry.Moderate anthropogenic increases in N and P availability affect resource stoichiometry and can alter animal communities, influencing additional food web and ecosystem properties. We provide support for ecological stoichiometry as a framework for predicting such outcomes based on changes in the elemental composition of resource pools. Aplain language summaryis available for this article.more » « less
-
Abstract A paradigm in the plant defence literature is that defending against herbivores comes at a cost to growth, resulting in a growth–defence trade‐off. However, while there is strong evidence for growth–defence trade‐offs across species, evidence is mixed within species.Several mechanisms can account for this equivocal support within species, but teasing them apart requires examining growth–defence relationships both within and among populations, an approach seldom employed.We examined correlations between plant biomass (growth) and terpene production (defence) within and among populations ofMonarda fistulosa, a perennial herb. We sampled populations from Montana and Wisconsin, regions that differ in resource availability characterized by different summer precipitation and associated abiotic conditions that influence plant productivity.We found negative, neutral and positive growth–defence correlations, depending on the scale examined. Negative correlations occurred across populations originating from divergent regions, positive correlations occurred across populations originating from within the high‐resource region and neutral correlations were found within single populations.Collectively, these results challenge the general expectation of ubiquitous trade‐offs and support emerging views that resource availability (as it affects productivity) shapes the evolution of defence at different scales. A freePlain Language Summarycan be found within the Supporting Information of this article.more » « less
-
Summary This work revisits a publication by Beanet al.(2018) that reports seven amino acid substitutions are essential for the evolution ofl‐DOPA 4,5‐dioxygenase (DODA) activity in Caryophyllales. In this study, we explore several concerns which led us to replicate the analyses of Beanet al.(2018).Our comparative analyses, with structural modelling, implicate numerous residues additional to those identified by Beanet al.(2018), with many of these additional residues occurring around the active site of BvDODAα1. We therefore replicated the analyses of Beanet al.(2018) to re‐observe the effect of their original seven residue substitutions in a BvDODAα2 background, that is the BvDODAα2‐mut3 variant.Multiplein vivoassays, in bothSaccharomyces cerevisiaeandNicotiana benthamiana, did not result in visible DODA activity in BvDODAα2‐mut3, with betalain production always 10‐fold below BvDODAα1.In vitroassays also revealed substantial differences in both catalytic activity and pH optima between BvDODAα1, BvDODAα2 and BvDODAα2‐mut3 proteins, explaining their differing performancein vivo.In summary, we were unable to replicate thein vivoanalyses of Beanet al.(2018), and our quantitativein vivoandin vitroanalyses suggest a minimal effect of these seven residues in altering catalytic activity of BvDODAα2. We conclude that the evolutionary pathway to high DODA activity is substantially more complex than implied by Beanet al.(2018).more » « less
-
Abstract Managing social‐ecological systems (SES) requires balancing the need to tailor actions to local heterogeneity and the need to work over large areas to accommodate the extent of SES. This balance is particularly challenging for policy since the level of government where the policy is being developed determines the extent and resolution of action.We make the case for a new research agenda focused on ecological federalism that seeks to address this challenge by capitalizing on the flexibility afforded by a federalist system of governance. Ecological federalism synthesizes the environmental federalism literature from law and economics with relevant ecological and biological literature to address a fundamental question: What aspects of SES should be managed by federal governments and which should be allocated to decentralized state governments?This new research agenda considers the bio‐geo‐physical processes that characterize state‐federal management tradeoffs for biodiversity conservation, resource management, infectious disease prevention, and invasive species control. Read the freePlain Language Summaryfor this article on the Journal blog.more » « less
