cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.7910/dvn/tqvcly
title: Replication Data for Phylogenetic clustering increases with succession for lianas in a Chinese tropical montane rain forest

description: This dataset was moved to: https://doi.org/10.34725/DVN/TQVCLYPrevious research found that phylogenetic clustering increased with disturbance for tropical trees, suggesting that community assembly is mainly influenced by abiotic factors during early succession. Lianas are an important additional component of tropical forests, but their phylogenetic community structure has never been investigated. Unlike tropical trees, liana abundance is often high in disturbed forests and diversity can peak in old secondary forest. Therefore, phylogenetic structure along a disturbance gradient might also differ from tropical tree communities. Here we determined phylogenetic community structure of lianas along a disturbance gradient in a tropical montane forest in China, using the net relatedness index (NRI) from 100 equivalent phylogenies with varying branch length that were constructed using DNA-barcode sequences. Three additional phylogenetic indices were also considered for comparison. When NRI was used as index phylogenetic clustering of liana communities decreased with decreasing tree basal area, suggesting that liana competitive interactions dominate during early succession, which is in contrast to the pattern reported for trees. Liana communities in mature forests, on the other hand, were phylogenetic clustered, which could be caused by dispersal limitation and/or environmental filtering. The three additional phylogenetic indices identified different, sometimes contradicting predictors of phylogenetic community structure, indicating that caution is needed when generalizing interpretations of studies based on a single phylogenetic community structure index. Our study provides a more nuanced picture of non-random assembly along disturbance gradients by focusing on a non-tree forest component.
DOI: 10.7910/dvn/w74dme
title: Replication Data for Litter fall and nutrient return along a disturbance gradient in a tropical montane forest.

description: This dataset was moved to: https://doi.org/10.34725/DVN/W74DMELitterfall plays an important role in nutrient cycling and maintenance of soil fertility in terrestrial ecosystems. Annual and seasonal variation in litterfall have been investigated in various habitats, however, seasonality in nutrient supply is less well documented. We studied litterfall over two years and seasonal litter nutrient input over one year across a tropical disturbance gradient from mature forest to monoculture tea plantation. Total litter production in the mature forests and regenerating forests was not significantly different. However, tea plantations had significantly lower litter production. Total litterfall in forest habitats showed a clear seasonal pattern with a peak during the dry season (Mar.–May), as has been reported for other tropical seasonal forests. Contrary to expectations, there was no significant difference in litter nutrient concentrations across the disturbance gradient, although there was a substantial change in plant species composition. Litter nutrient concentrations also did not vary significantly across seasons, again contrary to our expectations. Thus, nutrient input was driven solely by the seasonal litterfall pattern. Our results suggest that at a landscape scale turnover in species composition linked to anthropogenic disturbance may not always lead to changes in litter quality, presumably because a similar spectra of leaf types may exist across communities. Seasonal litterfall patterns, which have been more commonly studied, may prove a reasonable proxy for nutrient input in forests.
DOI: 10.7910/dvn/amq7jo
title: Trading in none timber forest products by the rural community around Mt Elgon national park in Uganda

description: This dataset was moved to: https://doi.org/10.34725/DVN/AMQ7JOThe data was collected using structured questionnaires that were administered to households and key informants by 12 trained enumerators. The study aimed to provide empirical evidence on the contribution of the forest ecosystem on the welfare of local people . The objectives of the study were: To identify the forest related goods in the study area; To estimate the value of tradable forest products; To determine the socioeconomic factors that influence forest related income and; To identify the determinants of participating in forest related trade.
DOI: 10.7910/dvn/p70ojn
title: Replication Data for Proximity to the host is an important characteristic for selection of the first support in lianas

description: This dataset was moved to: https://doi.org/10.34725/DVN/P70OJNLianas depend on support to reach optimal growing conditions. They can infest trees unevenly, and host selection may depend on functional characteristics of the potential hosts, such as growth rate, bark type or tree architecture. In this context we hypothesized that (1) simple proximity to the rooting point of the liana is the overriding property predicting the probability of selection as the host; (2) the distance to the host decreases with increasing stem density in the surrounding community; (3) host distance becomes more variable with liana age (~diameter), as some larger lianas probably have already lost their first host, whereas small lianas should use the nearest available stem to climb; and (iv) liana infestation of plant families is proportional to family abundance.
DOI: 10.7910/dvn/tuynfm
title: Replication Data for Environmental and geographic factors driving dung beetle (Coleoptera: Scarabaeidae: Scarabaeinae) diversity in the dipterocarp forests of Peninsular Malaysia

description: This dataset was moved to: https://doi.org/10.34725/DVN/TUYNFMDespite a good understanding of dung beetle (Coleoptera: Scarabaeidae: Scarabaeinae) ecology in Southeast Asia, little is known about dung beetles in Peninsular Malaysia. No general study of dung beetle diversity has been carried out in Peninsular Malaysia, and we lack an understanding of how environmental and geographic factors, such as floristic zone, affect dung beetle community diversity. We sampled dung beetle diversity at eight different sites distributed throughout Peninsular Malaysia that encompass primary and secondary lowland, hill, and upper hill dipterocarp forests. We collected 4,313 dung beetles of 64 different species that represent six tribes (Coprini, Oniticellini, Onthophagini, Gymnopleurini, Deltochilini, and Sisyphini) in the subfamily Scarabaeinae. The number of our sampling locations and the range of floristic zones and forest conditions represented by these sites allow us to present a general overview of dung beetle diversity in Peninsular Malaysia and to begin to analyse trends in dung beetle composition throughout the peninsula.
DOI: 10.7910/dvn/xienpd
title: Replication Data for Correct calculation of CO2 efflux using a closed-chamber linked to a non-dispersive infrared gas analyzer

description: This dataset was moved to: https://doi.org/10.34725/DVN/XIENPD1.Improved understanding of the carbon (C) cycle is essential to model future climates and how this may feedback to affect greenhouse gas fluxes. 2.We summarize previous work quantifying respiration rates of organic substrates and briefly discuss how advances in technology, specifically the use of chambers linked to a non-dispersive infrared gas analyzer (NDIR), can be applied to assess carbon dynamics from short-term field measurements. This technology hastens measurement and is relatively inexpensive, enabling researchers to increase replication and investigate temporal and spatial variation. 3.We describe the theory behind calculations of CO2 efflux released through organic substrates, when using a closed-chamber linked to a NDIR. These methods can in principle be extended to any chamber-based measurement of gas fluxes, including partially closed chambers as used for soil surface CO2, nitrous oxide or methane effluxes and stem CO2 respiration, although additional assumptions may apply. 4.We show that incorrect application of formulae in some earlier studies resulted in either under- or over-estimation of CO2 effluxes. Of the studies, we reviewed measuring the respiration of woody debris, leaf litter or woody stems using closed chambers linked to a NDIR, only 22% (11 of 51) provided the equations used to calculate CO2 efflux, and 72% (8 of 11) of those provided contained basic errors. Using our data on the decomposition of woody debris as an example, we found that such mistakes resulted in anywhere from 8% underestimation to 22% overestimation of CO2 efflux. The errors varied among studies and hence may limit understanding of the factors affecting emissions of CO2 and our ability to incorporate this knowledge into global carbon models. 5.We provide formulae for the correct calculation of respiration rates in future studies using closed chambers and thus provide a basis for comparative studies of factors affecting CO2 efflux from woody debris, leaf litter and other substrates. Ultimately, this will contribute to improved parameterization of forest respiration.
DOI: 10.5066/f72j68zw
title: Evapotranspiration in the Upper Klamath Basin for the 2013 Growing Season (April - October)

description: The evapotranspiration (ET) datasets were created under contract for this study by the University of Idaho. A high-resolution remote sensing technique known as Mapping Evapotranspiration at High Resolution and Internalized Calibration (METRIC) was used to create estimates of the spatial distribution of ET. The METRIC technique uses thermal infrared Landsat imagery to quantify actual evapotranspiration at a 30-meter resolution that can be related to individual irrigated fields. Because evaporation uses heat energy, ground surfaces with large ET rates are left cooler as a result of ET than ground surfaces that have less ET. As a consequence, irrigated fields appear in the Landsat images as cooler than nonirrigated fields. Products produced from this study include total seasonal and total monthly (April-October) actual evapotranspiration maps for 2013.
DOI: 10.7910/dvn/ca9phs
title: Replication Data for An estimate of the number of tropical tree species.

description: This dataset was moved to: https://doi.org/10.34725/DVN/CA9PHSThe high species richness of tropical forests has long been recognized, yet there remains substantial uncertainty regarding the actual number of tropical tree species. Using a pantropical tree inventory database from closed canopy forests, consisting of 657,630 trees belonging to 11,371 species, we use a fitted value of Fisher’s alpha and an approximate pantropical stem total to estimate the minimum number of tropical forest tree species to fall between ∼40,000 and ∼53,000, i.e., at the high end of previous estimates. Contrary to common assumption, the Indo-Pacific region was found to be as species-rich as the Neotropics, with both regions having a minimum of ∼19,000–25,000 tree species. Continental Africa is relatively depauperate with a minimum of ∼4,500–6,000 tree species. Very few species are shared among the African, American, and the Indo-Pacific regions. We provide a methodological framework for estimating species richness in trees that may help refine species richness estimates of tree-dependent taxa.
DOI: 10.5063/f1fj2dq4
title: Data from: Producer diversity enhances consumer stability in a benthic marine community

description: 1. The diversity of many communities is changing due to local extinctions and invasions. Understanding the consequences of these changes is vital to their successful conservation, yet few studies have experimentally investigated how producer diversity affects the stability of higher trophic levels. Here we show that producer diversity, when manipulated as the only independent variable in the presence of natural top-down forces, increases the stability of consumer abundance, biomass, and diversity in a benthic marine community. 2. Using four macroalgal species (Codium fragile, Gracilaria tikvahiae, Gracilaria vermiculophylla, Gymnogongrus griffithsiae), we manipulated producer diversity (identity and richness) in a substitutive design to create seven treatments. Our treatments included four monocultures, two 3-species mixtures that differed only by including either the native or invasive Gracilaria, and the complete four species mixture. We followed the week-to-week dynamics of producer and consumer communities in each treatment concurrently for 12 weeks and quantified their temporal stability. 3. We found that higher producer diversity increased the stability of a diverse, productive consumer community. Producer biomass production did not affect consumer production or diversity, suggesting that producer diversity was solely responsible for driving the mechanisms underlying the observed multitrophic diversity–stability relationships. Taken together, our results indicate that higher producer diversity directly increased consumer diversity by increasing overyielding and decreasing the temporal variance of this response variable, and that this increased consumer diversity enhanced consumer stability via increased asynchrony among consumers. 4. Synthesis. Our results suggest that the effects of producer diversity propagate upwards to maintain diversity and productivity at higher trophic levels, and thereby enhance the overall stability of food webs.
DOI: 10.5066/f77d2s6w
title: National Assessment of Oil and Gas Project - Utica Shale Unconventional Assessment

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 herein 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: 10.15121/1225260
title: Nevada Great Basin Play Fairway Analysis - Steptoe Valley

description: All datasets and products specific to the Steptoe Valley model area. Includes a packed ArcMap project (.mpk), individually zipped shapefiles, and a file geodatabase for the northern Steptoe Valley area; a GeoSoft Oasis montaj project containing GM-SYS 2D gravity profiles along the trace of our seismic reflection lines; a 3D model in EarthVision; spreadsheet of links to published maps; and spreadsheets of well data.
DOI: 10.5063/f1639mp5
title: Data from: Mapping forest functional type in a forest-shrubland ecotone using SPOT imagery and predictive habitat distribution modelling

description: This is a portion of the data used in the analysis for the article â Mapping forest functional type in a forest-shrubland ecotone using SPOT imagery and predictive habitat distribution modellingâ by T. Assal, P. Anderson, and J. Sibold, Remote Sensing Letters (2015). Five data sets are available for this project: (1) input point data used to derive presence/absence records of deciduous and coniferous forest type (.csv) ; (2) probability of occurrence model for deciduous forest (.img); (3) probability of occurrence model for coniferous forest (.img); (4) synthesis forest cover map derived from the probability of occurrence models (.img) ; (5) evaluation data used to calculate the receiver-operator characteristic area under the curve for each probability of occurrence model (subset of data) and to create a confusion matrix (full data set). All raster files are .img format and coordinate reference system for all data is WGS_1984_UTM_Zone_12North. For additional information please see: Assal, T., Anderson, P., & Sibold, J. (2015). Mapping forest functional type in a forest-shrubland ecotone using SPOT imagery and predictive habitat distribution modelling. Remote Sensing Letters, 6(10), 755â 764. doi:10.1080/2150704X.2015.1072289
DOI: 10.5063/f12b8vzf
title: Interior Alaska Mesocarnivore Snow Tracking

description: This data was collected over two winter field seasons, January-March, 2013 and 2014. Non-invasive snow tracking survey routes were established as linear transects or tracking squares in order to establish a record of presences and absences of 5 mesocarnivore species in the interior Alaska study area. The study area consisted of the 2000 square kilometer
DOI: 10.7910/dvn/8y9pjw
title: Replication Data for: Early survival and growth of Allanblackia stuhlmannii (Clusiaceae): a threatened tropical rainforest tree of high economic value in Tanzania

description: This dataset was moved to: https://doi.org/10.34725/DVN/8Y9PJWRural households living in tropical ecosystems depend heavily on forest trees for valuable nontimber forest products that are, however, undergoing unsustainable harvesting. This study assessed early survival and growth of Allanblackia stuhlmannii (Clusiaceae), a nontimber tree species endemic to Tanzania. A total of 400 seedlings sourced from twenty elite female trees were planted in two adjacent locations. Data were collected over 59 months for survival, height and root collar diameter. Seedling survival at 59 months was significantly different between Emau and Shebomeza, being on average ~11% higher in Shebomeza. However, survival of the progenies of each female tree at 59 months was not significantly different. Overall, mean RCD (range: 6.8–59.7 mm) and height (range: 17.1–274.4 cm) were positively correlated (r = 0.84, P &lt; 0.001). The correlations in heights of individuals between 17 and 59, and 23 and 59 months were positive (r = 0.34 versus 0.53, respectively). Results also suggested that if growth rate is related to ontogeny from juvenile to adult, then the progenies of ten female trees that have shown consistently higher growth rates may flower and fruit earlier than other progenies. Future planting for conservation of this threatened, overharvested tree species can therefore be based on data gathered from these field genebanks.
DOI: 10.5066/f7s180j9
title: Hydrogeology, Hydrologic Effects of Development, and Simulation of Groundwater Flow in the Borrego Valley, San Diego County, California

description: The quality of water in the Borrego Valley is a concern because of the basin's reliance on groundwater for agricultural, recreational, and municipal supply. Groundwater quality can be affected by land-use activities occurring at or near land surface. These activities include irrigation of vegetated landscapes and the use of septic systems to dispose of wastewater. Groundwater quality can also be affected by declining water levels, as there is the potential to change the distribution of flow from underlying aquifers to wells. Historic and current water-quality data was used to determine which constituents had relatively high concentrations compared to water-quality thresholds and if these constituent concentrations were changing in response to declining water levels. Water-quality data can be downloaded in an Excel format from this website. The Excel workbooks contain current and historical water-quality data for groundwater samples collected in the Borrego Valley and spring samples collected in pertinent watersheds. The workbooks are categorized by constituent class. These classes are: Chemical and physical water quality indicators Inorganic and nutrient constituents Isotopic tracers Microbial Other organic compounds Pharmaceutical constituents Pesticide and pesticide degradates Radiological constituents Volatile organic compounds
DOI: 10.14457/cu.the.2008.228
title: อิทธิพลของการสอนงาน และการเอื้ออำนวยที่มีต่อผลสัมฤทธิ์ทางการเรียน วิชาสถิติประยุกต์ทางพฤติกรรมศาสตร์ 1
DOI: 10.5281/zenodo.3909567
title: CPN MYNWS weekly surveys and end survey

description: Full data sets of the weekly surveys in Qualtrics for the VRT MYNWS app
DOI: 10.15139/s3/12114
title: Replication data for: A Partisan Model of Electoral Reform: Voter Identification Laws and Confidence in State Elections

description: We propose a model of public response to politicized election reform. In this model, rival partisan elites send signals on the need and consequences of a proposed reform, with partisans in public adopting those positions. We apply this to test how state use of voter identification laws corresponded with public evaluations of the conduct of a state's elections. We find the relationship between photo identification laws and confidence in state elections was polarized and conditioned by party identification in 2014. Democrats in states with strict photo identification laws were less confident in their state's elections. Republicans in states with strict identification laws were more confident than others. Results suggest strict photo identification laws are failing to instill broad based confidence in elections, and that the reform could correspond with diminished confidence among some.
DOI: 10.5281/zenodo.3909566
title: CPN MYNWS weekly surveys and end survey

description: Full data sets of the weekly surveys in Qualtrics for the VRT MYNWS app
DOI: 10.5063/f1xk8cgj
title: Bicknell's Thrush (Catharus bicknelli) Presence-absence Surveys in New England and New York, 1992-1995

description: We conducted presence-absence surveys for Bicknell’s Thrush (Catharus bicknelli) with the help of citizen scientists in Maine, Massachusetts, New Hampshire, New York, and Vermont during the 1992-1995 breeding seasons. The species was found at 234 sites, of which 225 (96%) were dominated by varying mixtures of balsam fir (Abies balsamea) and red spruce (Picea rub- ens). Ninety-one percent of the occupied sites were 2915 m (3000 ft) in elevation. Size of occupied habitat patches was generally small; 73% of occupied areas delimited by the 915 m elevation contour were less than 1000 ha in extent. A logistic regression model using independent variables describing vegetation, elevation, land area 2915 m located within 1 km of a site, and latitude successfully predicted thrush presence. There was no conclusive evidence of widespread population declines of Bicknell’s Thrush in the United States; we found the species at 63 of 73 sites (86%) known to have been occupied prior to 1992. However, the restricted breeding distribution and narrow habitat requirements of Bicknell’s Thrush in the United States suggest that it is vulnerable to habitat loss and degradation, and that continued efforts to document the species’ status and ecology are warranted. See Atwood JA, Rimmer CC, McFarland KP, Tsai SH, Nagy LNR, 1995. Distribution of Bicknell’s Thrush in New England and New York. Wilson Bull. 108: 650–661.