cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6073/pasta/8812fa905c172a9a2f74b34440698061
title: Ants Under Climate Change at Harvard Forest and Duke Forest 2009-2015

description: Experimental field studies are needed to understand the consequences of global climatic change for local community structure and associated ecosystem processes. We are using 5-m diameter open-top environmental chambers and 1m pvc minichambers to simultaneously manipulate air and soil temperatures at the Harvard Forest and at the Duke Forest in North Carolina. These field manipulations are designed to reveal the effects of temperature increases on the populations, communities, and associated ecosystem services of assemblages of ground-foraging ants. Ants are a model taxon for studying effects of global climatic change because they comprise the dominant fraction of animal biomass in many terrestrial communities and because they provide essential ecosystem services, including soil turnover, decomposition, and seed dispersal. The experiment is designed to test three predictions: 1. Projected atmospheric warming will lead to declines in ant species’ abundances at the warmer, southern extent of their ranges in the US. Conversely, projected atmospheric warming will lead to increases in abundance or range extensions of ant species at the cooler, northern extent of their ranges in the US. 2. Warming will change the relative abundance and composition of ant communities, and will lead to the loss of ant biodiversity. 3. Warming will potentially diminish ecosystem processes and services provided by ants, particularly with respect to the dispersal of seeds. To explore these, we are conducting two experiments. In one experiment, twelve open-top chambers at each site which will each be exposed air temperatures ranging from 1.5 to 7 deg C above ambient; soil temperatures will be increased simultaneously from 0 to ~ 2 deg C. After an initial year of pre-intervention measurements, the experiment will run for 3 consecutive years of continuous warming. In the second experiment, shade cloth and plastic greenhouse sheeting will be used to increase or decrease temperature by 0.5 deg C in sixty minichambers. The minichamber experiment was conducted in 2009 and will continue into 2010. The response variables measured in both experiments include ant activity, population densities and colony sizes of focal species, ant community diversity and species composition, and rates of seed dispersal and predation as mediated by ants.
DOI: 10.15468/fb25qr
title: The amphibians of the state of Rio de Janeiro, Brazil: an updated and commented list

description: This dataset contains the digitized treatments in Plazi based on the original journal article Dorigo, Thiago Arnt, Vrcibradic, Davor, Rocha, Carlos Frederico Duarte (2018): The amphibians of the state of Rio de Janeiro, Brazil: an updated and commented list. Papéis Avulsos de Zoologia 58: 1-11, DOI: 10.11606/1807-0205/2018.58.05
DOI: 10.6073/pasta/cbd0c5ca828e40d086ae47b8fb3fb58a
title: Nonstructural Carbohydrates in Defoliated Oaks in Central Massachusetts 2019-2020

description: Carbon starvation posits that defoliation- and drought-induced mortality results from drawing down stored nonstructural carbohydrates (NSCs), but evidence is mixed and mortality is often observed prior to full drawdown of NSCs. We tested the relationship between defoliation severity, NSC drawdown, and tree mortality by measuring NSCs in mature oak trees defoliated by gypsy moths across a natural experimental gradient of defoliation severity. We collected stem and root samples from oaks (Quercus rubra and Q. alba) in interior forests (n=34) and forest edges (n=47) in central Massachusetts, USA. Total NSC (TNC; sugar + starch) stores were analyzed with respect to tree size, species, and defoliation severity, which ranged between 5 and 100%. Forest edge trees had higher TNC stores that were less sensitive to defoliation than interior forest trees. However, TNC stores declined significantly in both groups with increasingly severe defoliation. Furthermore, we observed a mortality threshold of 1.5% dry weight TNC. Our study draws a direct link between insect defoliation and TNC reserves and defines a TNC threshold below which mortality is highly likely. These findings advance understanding and improve model parametrization of tree response to insect outbreaks, an increasing threat with globalization and climate change.
DOI: 10.7284/142280
title: Multiplexed data collected during research cruise AR50 using a WHOI dsLog gyro instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142284
title: Flowmeter data collected during research cruise AR50 using a Thiel Thiel Flowmeter instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142268
title: Fluorometer data collected during research cruise AR50 using a WET Labs WETStar instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142272
title: GNSS (Global Navigation Satellite System) data collected during research cruise AR50 using a C&C C-Nav 3050 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142283
title: GNSS (Global Navigation Satellite System) data collected during research cruise AR50 using a Kongsberg DPS112 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142275
title: Gravimeter data collected during research cruise AR50 using a Bell BGM-3 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142282
title: INS (Inertial Navigation System) data collected during research cruise AR50 using a Applanix POS/MV-320 V5 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142276
title: Meteorological Station data collected during research cruise AR50 using a Vaisala WXT520 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.5281/zenodo.4975634
title: Data Sets and Code for Simple formulas for pseudoposition for electrical resistivity and IP in vertical boreholes based on mean positions of the sensistivity

description: Data and Matlab code in figures.
DOI: 10.5281/zenodo.4975633
title: Data Sets and Code for Simple formulas for pseudoposition for electrical resistivity and IP in vertical boreholes based on mean positions of the sensistivity

description: Data and Matlab code in figures.
DOI: 10.7284/142277
title: Meteorological Station data collected during research cruise AR50 using a Vaisala WXT520 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142279
title: pCO2 (Partial Pressure of Carbon Dioxide) data collected during research cruise AR50 using a General Oceanics 8050 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142273
title: Radiometer data collected during research cruise AR50 using a Eppley RAD instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142274
title: Radiometer data collected during research cruise AR50 using a Biospherical QSR-2150 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142271
title: Singlebeam Echosounder data collected during research cruise AR50 using a Knudsen 3260 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142285
title: Speedlog data collected during research cruise AR50 using a Furuno DS-60 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142281
title: Splitbeam Echosounder data collected during research cruise AR50 using a Kongsberg EK80 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142286
title: SSV (Sound Speed Velocimeter) data collected during research cruise AR50 using a Valeport Thru-Hull SVS instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142278
title: Water Temperature data collected during research cruise AR50 using a Sea-Bird SBE-48 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.7284/142287
title: Transmissometer data collected during research cruise AR50 using a Sea-Bird C-Star instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6073/pasta/7e4fada083364a206c474b0b1cf1646c
title: Hemlock Hospice Sculpture Installation at Harvard Forest 2018-2019

description: Hemlock Hospice was an art-science collaboration between David Buckley Borden, 2016-2017 artist and designer-in-residence at the Harvard Forest, and Harvard Forest Senior Ecologist Aaron Ellison. It featured innovative art installed in the Fisher Museum and along a temporary interpretative walking trail on Prospect Hill, focused on eastern hemlock, a foundation tree in eastern forests that is slowly vanishing from North America as it is weakened and killed by a small insect, the hemlock woolly adelgid. Hemlock Hospice blended science, art, and design in respecting hemlock and its ecological role as a foundation forest species; promoting an understanding of the adelgid; and encouraging empathetic conversations among all the sustainers of and caregivers for our forests—ecologists and artists, foresters and journalists, naturalists and citizens—while fostering social cohesion around ecological issues.
DOI: 10.7284/142269
title: TSG (Thermosalinograph) data collected during research cruise AR50 using a Sea-Bird SBE-45 instrument system onboard the platform RV Neil Armstrong

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.13814225
title: Metadata record for: In-flight positional and energy use dataset of a DJI Matrice 100 quadcopter for small package delivery

description: This dataset contains key characteristics about the data described in the Data Descriptor In-flight positional and energy use dataset of a DJI Matrice 100 quadcopter for small package delivery. <br> Contents: <br> 1. human readable metadata summary table in CSV format 2. machine readable metadata file in JSON format <br>
DOI: 10.6073/pasta/a1251293f6eb6af4ad25e07feef30ca5
title: Hemlock Hospice Sculpture Installation at Harvard Forest 2018-2019

description: Hemlock Hospice was an art-science collaboration between David Buckley Borden, 2016-2017 artist and designer-in-residence at the Harvard Forest, and Harvard Forest Senior Ecologist Aaron Ellison. It featured innovative art installed in the Fisher Museum and along a temporary interpretative walking trail on Prospect Hill, focused on eastern hemlock, a foundation tree in eastern forests that is slowly vanishing from North America as it is weakened and killed by a small insect, the hemlock woolly adelgid. Hemlock Hospice blended science, art, and design in respecting hemlock and its ecological role as a foundation forest species; promoting an understanding of the adelgid; and encouraging empathetic conversations among all the sustainers of and caregivers for our forests—ecologists and artists, foresters and journalists, naturalists and citizens—while fostering social cohesion around ecological issues.
DOI: 10.6073/pasta/2d33323663cfa4e9f6f7338dedf97b80
title: Multispectral Radiometry percent reflectance:Natural Enemies, Plant Diversity and Plant Community Composition

description: The purpose of this experiment is to determine the influences of natural enemies, including plant pathogenic fungi and insect pests, influence plant community composition, productivity, and diversity over time. The experiment is being conducted in a subset of plots within the Big Biodiversity field, including monoculture, 2-species, 4-species, 8-species, 16-species, and 32-species plots. There are 5 different treatments: foliar fungicide, soil drench fungicide, foliar insecticide, the combination of all pesticides, and nontreated control. The pesticides are applied repeatedly throughout the growing season. Within the plots, community productivity, species composition, percent cover, and pest damage are being quantified over time.
DOI: 10.6073/pasta/9e0a8adf720d9c7116b8f15d1684aae4
title: Effects of Soil Warming on Bacterial Degradation of Carbohydrates at Harvard Forest 2011

description: As Earth’s climate warms, soil carbon pools and the microbes that process them may change, altering the way in which carbon is recycled in soil. We used bacterial cultivation to evaluate the hypothesis that experimentally raising soil temperatures by 5°C for 20 years increased the potential for temperate forest soil microbial communities to degrade carbohydrates. A greater proportion of the 295 bacteria from 6 phyla (10 classes, 14 orders, and 34 families) isolated from heated plots in the 20-year experiment were able to depolymerize cellulose and xylan than bacterial isolates from control soils. These findings indicate that the enrichment of bacteria capable of degrading carbohydrates could be important for accelerated carbon cycling in a warmer world. Data for the isolates from the Harvard Forest culturing project is archived at https://osf.io/ahb2v/.
DOI: 10.48425/0092760
title: V_rodents_snaptrapping_abundance_intensive

description: Snap trapping data of rodents on the Varanger peninsula. This dataset has data from the COAT intensive study design and has data on site-based abundances. Two related datasets have information on i) trapped individuals and ii) trap status, i.e. missing and closed traps. \r\n\r\nThe dataset includes four different types of files and all files are\r\nsaved as ;-separated txt-files:\r\n\r\n* One data file per year (_YEAR.txt)\r\n* One coordinate file with coordinates of all sites (_coordinates.txt)\r\n* One auxiliary file with information about which sites are included in the study design (_aux.txt)\r\n* One readme file with additional information (_readme.pdf)\r\n\r\nThe dataset has a two-year embargo, older versions of the dataset are publicly available for download.
DOI: 10.6073/pasta/5550a5976b38d84f640bded41052266c
title: Effects of Soil Warming and Substrate Complexity on Microbial Carbon Use Efficiency at Harvard Forest 2017

description: Soil microbial carbon use efficiency (CUE) is a combination of growth and respiration, which may respond differently to climate change depending on physical protection of soil carbon (C) and its availability to microbes. In a mid-latitude hardwood forest in central Massachusetts, 27 years of soil warming (+5 ◦C) has resulted in C loss and altered soil organic matter (SOM) quality, yet the underlying mechanisms remain unclear. Here, we hypothesized that long-term warming reduces physical aggregate protection of SOM, microbial CUE, and its temperature sensitivity. Soil was separated into macroaggregate (250–2000 μm) and microaggregate (less than 250 μm) fractions, and CUE was measured with 18O-enriched water in samples incubated at 15 and 25 ◦C for 24 h. We found that long-term warming reduced soil C and nitrogen concentrations and extracellular enzyme activity in macroaggregates, but did not affect physical protection of SOM. Long-term warming showed little effect on CUE or microbial biomass turnover time because it reduced both growth and respiration. However, CUE was less temperature sensitive in macroaggregates from the warmed compared to the control plots. Our findings suggest that microbial thermal responses to long-term warming occur mostly in soil compartments where SOM is less physically protected and thus more vulnerable to microbial degradation.
DOI: 10.5066/p9fwy4ik
title: National Assessment of Oil and Gas Project - Michigan Basin Province (063) Assessment Units

description: The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown here as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing, migration pathways, trapping mechanism, and hydrocarbon type. The Assessment Unit boundary is defined geologically as the limits of the geologic elements that define the Assessment Unit, such as limits of reservoir rock, geologic structures, source rock, and seal lithologies. The only exceptions to this are Assessment Units that border the Federal-State water boundary. In these cases, the Federal-State water boundary forms part of the Assessment Unit boundary.
DOI: 10.23641/asha.14781996
title: Effect of working memory load and typicality (Obermeyer et al., 2021)

description: <b>Purpose:</b> This study evaluated the effects of a linguistic characteristic, typicality, and a processing variable, working memory on the abilities of people with aphasia (PWA) and neurologically intact adults to process semantic representations. This was accomplished using a newly developed assessment task, the Category Typicality Test, which was created for the Temple Assessment of Language and Short-Term Memory in Aphasia.<b>Method: </b>A post hoc quasi-experimental design was used. Participants included 27 PWA and 14 neurologically intact adults who completed the picture and word versions of the Category Typicality Test, which required them to determine if two items are in the same category. Memory load was altered by increasing the number of items to be compared, and the typicality of items was altered to increase linguistic complexity.<b>Results:</b> A four-way mixed analysis of covariance was conducted. There was a significant interaction between working memory load and category typicality with performance accuracy decreasing as working memory load increased and category typicality decreased. There was also a significant interaction for typicality and stimuli with better performance in the picture condition and a significant interaction for working memory and group with lower performance accuracy for PWA. Post hoc pairwise comparisons revealed differences between memory load, typicality, stimuli conditions, and group. PWA also showed greater magnitude of change than neurologically intact adults when comparing high and low working memory load conditions, but not typicality conditions.<b>Discussion: </b>Increasing working memory load had the most substantial impact on the accuracy of category judgments in PWA, but the interaction between increased working memory load and decreased category typicality of items to be compared resulted in reduced accuracy in both groups. These findings suggest that manipulation of processing and linguistic variables in assessment will provide insight into the nature of linguistic breakdown in aphasia. <br><b>Supplemental Material S1. </b>Background span tasks for people with aphasia and neurologically intact people. <br>Obermeyer, J., Reinert, L., Kamen, R., Pritchard, D., Park, H., & Martin, N. (2021). Effect of working memory load and typicality on semantic processing in aphasia.<i> American Journal of Speech-Language Pathology.</i> Advance online publication. https://doi.org/10.1044/2021_AJSLP-20-00283<br><b>Publisher Note:</b> This article is part of the Special Issue: Select Papers From the 50th Clinical Aphasiology Conference.
DOI: 10.23641/asha.14781996.v1
title: Effect of working memory load and typicality (Obermeyer et al., 2021)

description: <b>Purpose:</b> This study evaluated the effects of a linguistic characteristic, typicality, and a processing variable, working memory on the abilities of people with aphasia (PWA) and neurologically intact adults to process semantic representations. This was accomplished using a newly developed assessment task, the Category Typicality Test, which was created for the Temple Assessment of Language and Short-Term Memory in Aphasia.<b>Method: </b>A post hoc quasi-experimental design was used. Participants included 27 PWA and 14 neurologically intact adults who completed the picture and word versions of the Category Typicality Test, which required them to determine if two items are in the same category. Memory load was altered by increasing the number of items to be compared, and the typicality of items was altered to increase linguistic complexity.<b>Results:</b> A four-way mixed analysis of covariance was conducted. There was a significant interaction between working memory load and category typicality with performance accuracy decreasing as working memory load increased and category typicality decreased. There was also a significant interaction for typicality and stimuli with better performance in the picture condition and a significant interaction for working memory and group with lower performance accuracy for PWA. Post hoc pairwise comparisons revealed differences between memory load, typicality, stimuli conditions, and group. PWA also showed greater magnitude of change than neurologically intact adults when comparing high and low working memory load conditions, but not typicality conditions.<b>Discussion: </b>Increasing working memory load had the most substantial impact on the accuracy of category judgments in PWA, but the interaction between increased working memory load and decreased category typicality of items to be compared resulted in reduced accuracy in both groups. These findings suggest that manipulation of processing and linguistic variables in assessment will provide insight into the nature of linguistic breakdown in aphasia. <br><b>Supplemental Material S1. </b>Background span tasks for people with aphasia and neurologically intact people. <br>Obermeyer, J., Reinert, L., Kamen, R., Pritchard, D., Park, H., & Martin, N. (2021). Effect of working memory load and typicality on semantic processing in aphasia.<i> American Journal of Speech-Language Pathology.</i> Advance online publication. https://doi.org/10.1044/2021_AJSLP-20-00283<br><b>Publisher Note:</b> This article is part of the Special Issue: Select Papers From the 50th Clinical Aphasiology Conference.
DOI: 10.6073/pasta/8d36c0add59718167b2aec5b230ed785
title: Sarracenia Purpurea Prey Capture at Harvard Forest 2008

description: We experimentally demonstrate that nectar, not color, is the primary attractant of prey to carnivorous pitcher plants in their native habitats. Prey capture (either all taxa summed or individual common taxa considered separately) was not associated with total red area or patterning on pitchers of living pitcher plants. We separated effects of nectar availability and coloration using painted "pseudopitchers", half of which were coated with sugar solution. Unsugared pseudopitchers captured virtually no prey, whereas pseudopitchers with sugar solution captured the same amount of prey as living pitchers. In contrast to a recent study that associated red coloration with prey capture but that lacked appropriate controls for nectar availability, we conclude that nectar, not color, is the primary means by which pitcher plants attract prey.