Ecosphere最新文献

{"title":"Using animal–vehicle collision data for wildlife population monitoring","authors":"Jonathan Lind Hansen,&nbsp;Peter Sunde,&nbsp;Thorsten Johannes Skovbjerg Balsby,&nbsp;Martin Mayer","doi":"10.1002/ecs2.4953","DOIUrl":"https://doi.org/10.1002/ecs2.4953","url":null,"abstract":"<p>Globally, collisions with vehicles result in millions of animal deaths every year, representing a major issue for wildlife conservation and management. Consequently, and importantly, much research has focused on understanding patterns of animal–vehicle collisions with the aim to reduce roadkill of wildlife. However, existing data on animal–vehicle collisions might also represent a novel opportunity to monitor wildlife populations. For this purpose, we compared data of &gt;1.2 million hunter-shot deer and &gt;40,000 deer–vehicle collisions collected over 11 years in Denmark. We show that deer–vehicle collision data can be useful for population monitoring of roe deer (<i>Capreolus capreolus</i>), fallow deer (<i>Dama dama</i>), and red deer (<i>Cervus elaphus</i>). Roe deer was the most numerous species, representing 90% of observations based both on deer–vehicle collisions and on hunting bag statistics. After accounting for factors related to road infrastructure (road length and density, traffic volume), local (municipality) deer–vehicle collisions were highly correlated with hunting bag data for roe and red deer (Pearson's <i>r</i> &gt; 0.7) but not fallow deer, likely due to biases in hunting bags. Moreover, we used deer–vehicle collision data to map spatiotemporal changes in the distribution of fallow and red deer, and demographic changes in all species. Combined, our results suggest that animal–vehicle collision data can be a useful tool to supplement existing methods for monitoring wildlife populations, which will be relevant for the management of these populations. We point to important shortcomings in both animal–vehicle collision and hunting bag data and provide recommendations on how to improve their accuracy in the future, to be applicable for a broader range of species.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.4953","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biological and physical controls of methane uptake in grassland soils across the US Great Plains","authors":"Akihiro Koyama,&nbsp;Nels G. Johnson,&nbsp;Paul Brewer,&nbsp;Colleen T. Webb,&nbsp;Joseph C. von Fischer","doi":"10.1002/ecs2.4955","DOIUrl":"https://doi.org/10.1002/ecs2.4955","url":null,"abstract":"<p>The grassland biome is an important sink for atmospheric methane (CH₄), a major greenhouse gas. There is considerable uncertainty in the grassland CH₄ sink capacity due to diverse environmental gradients in which grasslands occur, and many environmental conditions can affect abiotic (e.g., CH₄ diffusivity into soils) and biotic (e.g., methanotrophy) factors that determine spatial and temporal CH₄ dynamics. We investigated the relative importance of a soil's gas diffusivity versus net methanotroph activity in 22 field plots in seven sites distributed across the US Great Plains by making approximately biweekly measures during the growing seasons over 3 years. We quantified net methanotroph activity and diffusivity by using an approach combining a gas tracer, chamber headspace measurements, and a mathematical model. At each plot, we also measured environmental characteristics, including water-filled pore space (WFPS), soil temperature, and inorganic nitrogen contents, and examined the relative importance of these for controlling diffusivity and net methanotroph activity. At most of the plots across the seven sites, CH₄ uptake rates were consistently greatest when WFPS was intermediate at the plot level. Our results show that variation in net methanotroph activity was more important than diffusivity in explaining temporal variations in net CH₄ uptake, but the two factors were equally important for driving spatial variation across the seven sites. WFPS was a significant predictor for diffusivity only in plots with sandy soils. WFPS was the most important control on net methanotroph activity, with net methanotroph activity showing a parabolic response to WFPS (concave down), and the shape of this response differed significantly among sites. Moreover, we found that the WFPS level at peak net methanotroph activity was strongly correlated with the mean annual precipitation of the site. These results suggest that the local precipitation regime determines unique sensitivity of CH₄ uptake rates to soil moisture. Our findings indicate that grassland CH₄ uptake may be predicted using local soil water conditions. More variable soil moisture, potentially induced through predicted future extremes of rainfall and drought, could reduce grassland CH₄ sink capacity in the future.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.4955","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimating ungulate migration corridors from sparse movement data","authors":"Jennifer L. McKee,&nbsp;Julien Fattebert,&nbsp;Ellen O. Aikens,&nbsp;Jodi Berg,&nbsp;Scott Bergen,&nbsp;Eric K. Cole,&nbsp;Holly E. Copeland,&nbsp;Alyson B. Courtemanch,&nbsp;Sarah Dewey,&nbsp;Mark Hurley,&nbsp;Blake Lowrey,&nbsp;Jerod A. Merkle,&nbsp;Arthur D. Middleton,&nbsp;Tristan A. Nuñez,&nbsp;Hall Sawyer,&nbsp;Matthew J. Kauffman","doi":"10.1002/ecs2.4983","DOIUrl":"10.1002/ecs2.4983","url":null,"abstract":"<p>Many ungulates migrate between distinct summer and winter ranges, and identifying, mapping, and conserving these migration corridors have become a focus of local, regional, and global conservation efforts. Brownian bridge movement models (BBMMs) are commonly used to empirically identify these seasonal migration corridors; however, they require location data sampled at relatively frequent intervals to obtain a robust estimate of an animal's movement path. Fitting BBMMs to sparse location data violates the assumption of conditional random movement between successive locations, overestimating the area (and width) of a migration corridor when creating individual and population-level occurrence distributions and precluding the use of low-frequency, or sparse, data in mapping migration corridors. In an effort to expand the utility of BBMMs to include sparse GPS data, we propose an alternative approach to model migration corridors from sparse GPS data. We demonstrate this method using GPS data collected every 2 h from four mule deer (<i>Odocoileus hemionus</i>) and four elk (<i>Cervus canadensis</i>) herds within Wyoming and Idaho. First, we used BBMMs to estimate a baseline corridor for the 2-h data. We then subsampled the 2-h data to one location every 12 h (a proxy for sparse data) and fitted BBMMs to the 12-h data using a fixed motion variance (FMV) value, instead of estimating the Brownian motion variance empirically. A range of FMV values was tested to identify the value that best approximated the baseline migration corridor. FMV values within a species-specific range (mule deer: 400–1200 m²; elk: 600–1600 m²) successfully delineated migration corridors similar to the 2-h baseline corridors; overall, lower values delineated narrower corridors and higher values delineated wider corridors. Optimal FMV values of 800 m² (mule deer) and 1000 m² (elk) decreased the inflation of the 12-h corridors relative to the 2-h corridors from traditional BBMMs. This FMV approach thus enables using sparse movement data to approximate realistic migration corridor dimensions, providing an important alternative when movement data are collected infrequently. This approach greatly expands the number of datasets that can be used for migration corridor mapping—a useful tool for management and conservation across the globe.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.4983","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142257158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of cutting and burning on grassland habitat in Bardia National Park, Nepal","authors":"Birat Lamichhane,&nbsp;Jhamak B. Karki,&nbsp;Shyam Kumar Thapa,&nbsp;Ashok Bhandari,&nbsp;Bhawana Basyal","doi":"10.1002/ecs2.70004","DOIUrl":"https://doi.org/10.1002/ecs2.70004","url":null,"abstract":"<p>Management interventions are pivotal in shaping the ecosystems, particularly grassland habitats. This study examines the effects of cutting and burning treatments on vegetation composition, physical properties, and herbivore utilization patterns in Baghaura grassland, situated within Bardia National Park, Nepal. The study considers three treatment plots: cutting only, both cutting and burning, and burning only. Vegetation composition is evaluated using the point intercept method within 1 × 1 m quadrats. Grass samples are collected and weighed for fresh weight determination. Subsequently, samples are separated into green leaf, green stem, dead leaf, and dead stem components, and biomass and leaf-stem proportion are calculated. The burned plots, characterized by <i>Imperata cylindrica</i> dominance, exhibit the highest species diversity. Furthermore, the burned-only plots demonstrate significantly greater species height. Cut-only plots display a higher proportion of green leaves and green stems, while the burned-only plots exhibit higher mean dry biomass in dead leaves and dead stems. Grazing intensity is notably higher in the cut-and-burned plots. The regression model (<i>y</i> = −1.4095<i>x</i> + 98.4948) indicates a subtle, statistically nonsignificant relationship (<i>R</i>² = 0.0395, <i>p</i> = 0.3205) between grazing intensity and grass height with low grazer diversity (<i>H</i>′ = 0.7). The study suggests that implementing small-scale cutting followed by controlled burning during the dry season can provide herbivores with fresh, high-quality forage throughout the year, thereby meeting their nutritional needs. These findings enhance our understanding of the effects of management interventions on grassland ecosystems and can inform the development of sustainable conservation strategies for similar habitats.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Context-dependent directional effects of termite mounds on soil nutrients, vegetation communities, and mammalian foraging","authors":"Andrew B. Davies,&nbsp;Shaun R. Levick,&nbsp;Berndt J. van Rensburg,&nbsp;Mark P. Robertson,&nbsp;Catherine L. Parr","doi":"10.1002/ecs2.4978","DOIUrl":"https://doi.org/10.1002/ecs2.4978","url":null,"abstract":"<p>Termite mounds are keystone structures in African savannas, affecting multiple ecosystem processes. Despite the large size of termite mounds having the potential to modify conditions around them, patterns of mound-induced ecosystem effects have been assumed to be isotropic, with little attention given to how effects might vary around mounds. We measured soil nitrogen content, grass species composition, and mammalian grazing on and off termite mounds in the four cardinal directions, and across wet and dry seasons at three savanna sites varying in mean annual rainfall in South Africa's Kruger National Park. Evidence of directional effects (anisotropy) on ecosystem properties around termite mounds varied with site. Grass species composition differed between north- and south-facing slopes at the two drier sites where mounds were taller. However, differences in grazing extent and soil nitrogen content around mounds were only present at the intermediate rainfall site where mammalian herbivore biomass was highest, and mounds were of medium height. Our results suggest that termite mound effects display significant variation with direction, but that the emergence of directional effects is context dependent. Our results further suggest that such context-dependent directional effects can lead to positive feedback loops between termites, abiotic conditions, and mammalian herbivores.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.4978","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Friend of the dead: Zoanthids enhance the persistence of dead coral reef framework under high consumer pressure","authors":"Patrick H. Saldaña,&nbsp;Natalie L. Lang,&nbsp;Andrew H. Altieri","doi":"10.1002/ecs2.4940","DOIUrl":"https://doi.org/10.1002/ecs2.4940","url":null,"abstract":"<p>Consumers can play critical roles in ecosystem resilience by modifying community resistance and recovery rates. In coral reefs, grazers can increase reef resilience by controlling algae and maintaining open space for coral recruitment, but can also erode the reef framework critical for coral recovery. Here we examine the context-dependent effects of herbivores on reef persistence in Caribbean Panamá. Using a series of lab and field experiments, we found that the erosional effects of the herbivorous reef urchin (<i>Echinometra viridis</i>) were 2 orders of magnitude greater on dead corals than live corals, and surveys across multiple similarly overfished reefs revealed a positive relationship between urchin densities and percent cover of bare dead coral with urchin densities exceeding 150 m⁻² in some reefs. However, we observed that a mat-forming zoanthid (<i>Zoanthus pulchellus</i>), found exclusively on dead corals, had an inverse spatial relationship with urchins. Through a series of field experiments, we found that zoanthid overgrowth repelled urchins, increased dead coral persistence, and decreased erosion of dead corals making up the reef framework by more than 50% over a 22-month period. Our findings reveal that zoanthids can provide associational refuge to dead corals by enhancing their persistence under high urchin grazing pressure. We suggest that secondary space-holders, such as zoanthids, may play increasingly important functional roles in degraded reef systems by shielding coral skeletons from external bioeroders. Moreover, the Stress Gradient Hypothesis, which predicts that the importance of positive interactions such as associational refuges increases with consumer pressure, extends to dead foundation species such as coral skeletons crucial for ecosystem recovery.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.4940","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ventenata dubia projected to expand in the western United States despite future novel conditions","authors":"Ty C. Nietupski,&nbsp;John B. Kim,&nbsp;Claire M. Tortorelli,&nbsp;Rebecca Lemons,&nbsp;Becky K. Kerns","doi":"10.1002/ecs2.4979","DOIUrl":"https://doi.org/10.1002/ecs2.4979","url":null,"abstract":"<p>Distributions of both native and invasive species are expected to shift under future climate. Species distribution models (SDMs) are often used to explore future habitats, but sources of uncertainty including novel climate conditions may reduce the reliability of future projections. We explore the potential spread of the invasive annual grass ventenata (<i>Ventenata dubia</i>) in the western United States under both current and future climate scenarios using boosted regression tree models and 30 global climate models (GCMs). We quantify novel climate conditions, prediction variability arising from both the SDMs and GCMs, and the agreement among GCMs. Results demonstrate that currently suitable habitat is concentrated inside the invaded range of the northwest, but substantial habitat exists outside the invaded range in the Southern Rockies and southwestern US mountains. Future suitability projections vary greatly among GCMs, but GCMs commonly projected decreased suitability in the invaded range and increased suitability along higher elevations of interior mountainous areas. Climate novelty did not appear to undermine the prediction reliability in many cases where the climate–species relationship was fully represented by the occurrence data. GCM-derived variability resulting from variation in future cool season precipitation and temperature seasonality was greatest in the Rocky Mountains. SDM-derived variability was higher in currently suitable habitat, and few GCMs projections agreed that these areas would contain future suitable habitat. However, while prediction variability was high, many GCM projections agreed that parts of the Rocky, Wasatch, and Uinta Mountains would contain highly suitable habitat in the future. As disturbances in the interior mountains occur in coming decades, reducing some natural barriers to invasion, land managers, and conservationists will need to monitor for ventenata in post-disturbance environments. Changes to invasion potential may not play out for several decades, but results related to current potential may have applications for early detection and rapid response planning.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.4979","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142170018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hookworm prevalence in ocelots in Costa Rica is inconsistent with spillover from domestic dogs despite high overlap","authors":"Juan S. Vargas Soto,&nbsp;Katelyn M. Gostic,&nbsp;Natalka A. Melnycky,&nbsp;Julianna G. Johnson,&nbsp;Andrew P. Dobson,&nbsp;Kevin D. Lafferty,&nbsp;Claire J. Standley,&nbsp;Péter K. Molnár","doi":"10.1002/ecs2.4947","DOIUrl":"https://doi.org/10.1002/ecs2.4947","url":null,"abstract":"<p>Spatial overlap between wildlife and related domestic animals can lead to disease transmission, with substantial evidence for viral and bacterial spillover. Domestic and wild animals can also share potentially harmful helminth parasites, many of which have environmental transmission stages that do not require direct contact between hosts. We used camera traps, fecal sampling, and mathematical modeling to evaluate the potential for hookworm parasites to spillover from domestic dogs to wild cats in the Osa Peninsula, Costa Rica. Traditional microscopy was found to be more sensitive than DNA-based diagnostics for parasites, though the methods were complementary. We found high hookworm (<i>Ancylostoma</i> spp.) prevalence in domestic dogs (74.2%, 95% CI: 67.0%–80.7%, <i>N</i> = 155), and considerable spatial overlap with ocelots (<i>Leopardus pardalis</i>) and pumas (<i>Puma concolor</i>), particularly on trails and dirt roads. Pumas had hookworm prevalence of 36.4% (18.6%–57.2%, <i>N</i> = 22), and ocelots had 27.3% (7.6%–56.5%, <i>N</i> = 11); however, molecular identification of these parasites was inconclusive. We developed a macroparasite transmission model to infer the likelihood of spillover, compared with separate parasite cycles, or different parasite species in each host. According to the model, spillover of hookworm from dogs would lead to a prevalence of less than 10% in wild hosts. Low presumed compatibility between wild hosts and parasites adapted to domestic species limits the prevalence that could be reached in wild species, even under potentially higher overlap. The prevalence observed was more consistent with a model that assumes hookworms in wild cats in the Osa are a cat-specific parasite. The combination of parasitology, molecular diagnostics, and mathematical modeling used here could complement wildlife disease monitoring programs worldwide to shed light on understudied helminth–host dynamics at the domestic–wild animal interface.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.4947","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142169928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Montane springs provide regeneration refugia after high-severity wildfire","authors":"Grace Peven,&nbsp;Mary Engels,&nbsp;Jan U. H. Eitel,&nbsp;Robert A. Andrus","doi":"10.1002/ecs2.70009","DOIUrl":"https://doi.org/10.1002/ecs2.70009","url":null,"abstract":"<p>In the mountainous regions of the Western United States, increasing wildfire activity and climate change are putting forests at risk of regeneration failure and conversion to non-forests. During periods with unfavorable climatic conditions, locations that are suitable for post-fire tree regeneration (regeneration refugia) may be essential for forest recovery. These refugia could provide scattered islands of recovering forest from which broader forest recovery may be facilitated. Spring ecosystems provide cool and wet microsites relative to the surrounding landscape and may act as regeneration refugia, though few studies have investigated their influence on post-fire regeneration. To address this knowledge gap, we quantified coniferous tree regeneration adjacent to and away from springs in mixed-conifer forests in a mountainous region of central Idaho, USA. Our research objectives were to (1) quantify post-fire conifer density near and away from springs, (2) assess the relative importance of distance to a spring compared with other biophysical factors important to post-fire regeneration, and (3) examine the temporal trends of post-fire seedling establishment near and away from springs. In areas burned at high severity from fires in 1988, 2000, and 2006, we sampled transects at 27 springs for the count, age, and height of extant conifer seedlings, as well as topographic factors and distance to surviving seed source. We modeled the relative effects of distance to a spring, topographic variables (slope, heat load index, elevation), post-fire climate, and distance to surviving seed source for the two dominant species, Douglas fir (<i>Pseudotsuga menziesii</i>) and lodgepole pine (<i>Pinus contorta</i>), using a generalized linear mixed-effects model. Our study revealed that proximity to springs resulted in higher conifer density and earlier establishment after high-severity wildfire when conditions for available seeds and topography were also met. Our results demonstrate that springs are important and previously undescribed regeneration refugia with landscape-scale implications for post-fire forest recovery in increasingly water-limited environments. Springs are relatively abundant features of montane landscapes and may offer continued regeneration refugia for post-fire recovery into the future, but additional springs mapping and hydroclimatic considerations are needed.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142169932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A model-based instructional approach in a socio-ecological course-based undergraduate research experience (CURE)","authors":"Amanda E. Sorensen,&nbsp;Ashley Alred,&nbsp;Joseph J. Fontaine,&nbsp;Jenny M. Dauer","doi":"10.1002/ecs2.70007","DOIUrl":"https://doi.org/10.1002/ecs2.70007","url":null,"abstract":"<p>Course-based undergraduate research experiences (CUREs) are an instructional strategy to help students learn the content and process of science by engaging students in authentic science research. The ESA-endorsed 4-Dimensional Ecology Education framework emphasizes engaging students in authentic ecology scientific practices, and uniquely foregrounds human dimensions as a core tenant of ecological literacy. Model-based CURE instruction may help ecology instructors by giving students a scaffold to better orient their line of inquiry and develop more accurate conceptions of the broader socio-ecological system through the integration of the CURE experimental data to known concepts within the system. We explored how student model accuracy changes throughout the course, what modeling practices students engaged in during collaborative modeling, and how students used CURE data along with social and ecological sciences in their models. We found that students created more accurate models as the course progressed, and all student groups exhibited expert-like modeling practices during the summative collaborative modeling process. Importantly, we also found that students were able to integrate experimental data they generated through the CURE within their broader understanding of the study system. A major benefit of model-based CUREs is to cultivate scientific thinking by helping students connect how individual pieces of research inform larger phenomenon.</p>","PeriodicalId":48930,"journal":{"name":"Ecosphere","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecs2.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142169931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}