18 Works

Vascular plant community data for Northwest Territories, Canada

Jennifer Baltzer, Nicola Day, Alison White, Kirsten Reid, Geneviève Degré-Timmons, Steve Cumming, Michelle Mack, Merritt Turetsky, Xanthe Walker & Jill Johnstone
Climate change is altering disturbance regimes outside of historical norms, which can impact biodiversity by selecting for plants with particular traits. The relative impact of disturbance characteristics on plant traits and community structure may be mediated by environmental gradients. We aimed to understand how wildfire impacted understory plant communities and plant regeneration strategies along gradients of environmental conditions and wildfire characteristics in boreal forests. We established 207 plots (60m2) in recently burned stands and 133...

CLiP Solomon Islands Microplastics in sediment 2017

This dataset contains 2 csv files. One file contains data on microplastic abundance expressed in number of particles per 5g dried sediment from 6 riverine, transitional and coastal locations on Guadalcanal Island (Solomon Islands) in 2017. One file contains spectrum analysis for some of the particles carried out with a ATR-FTIR. A READ-ME text file contains description of columns content for these two csv files. There is a .zip file that includes a csv file...

Data from: A novel hearing specialization in the New Zealand bigeye, Pempheris adspersa

Craig A. Radford, John C. Montgomery, Paul Caiger, Peter Johnston, Jun Lu & Dennis M. Higgs
The New Zealand bigeye, Pempheris adspersa, is a nocturnal planktivore and has recently been found to be an active sound producer. The rostral end of the swim bladder lies adjacent to Baudelot's ligament which spans between the bulla and the cleithrum bone of the pectoral girdle. The aim of this study was to use the auditory evoked potential technique to physiologically test the possibility that this structure provides an enhanced sensitivity to sound pressure in...

CLiP Vanuatu Microplastics in biota 2018

This dataset contains 2 csv files. One file contains data on microplastic abundance expressed in number of particles from biota samples (tuna stomachs, land crabs and reef fish) collected around Efate Island (Vanuatu) in 2018 with indication of sample wet weight, species and other characteristics. The file also contains information on blank used. The other file contains the profile of a ATR-FT-IR spectrum analysis of a plastic piece found in a tuna stomach . A...

CLiP Vanuatu Microplastics in sediment 2018

This dataset contains 2 csv files. One file reports data on microplastic abundance in sediment expressed in number of particles for 5g sediment. Sediment was collected from 20 grabs deployed in Port Vila Bay and Mele Bay in Efate Island (Vanuatu) in 2018. The file also reports information on blank used, grab GPS coordinates and deployment time and the particulate size analysis (PSA) of the sediment. The other file contains the profile of a ATR-FT-IR...

CLiP Vanuatu Microplastics in sediment 2017

This dataset contains 2 csv files. One file contains data on microplastic abundance expressed in number of particles per 5g dried sediment from 14 grabs collected on Efate Island (Vanuatu) in 2017. One file contains spectrum analysis for some of the particles carried out with a ATR-FTIR. A READ-ME text file contains description of columns content for these two csv files. There is a .zip file that includes a csv file with the description of...

Data from: The roles of non-production vegetation in agroecosystems: a research framework for filling process knowledge gaps in a social-ecological context

Bradley Case, Jennifer Pannell, Margaret Stanley, David Norton, Anoek Brugman, Matt Funaki, Chloé Mathieu, Cao Songling, Febyana Suryaningrum & Hannah Buckley
1. An ever-expanding human population, climatic changes, and the spread of intensive farming practices is putting increasing pressure on agroecosystems and their inherent biodiversity. Non-production vegetation elements, such as woody patches, riparian margins, and restoration plantings, are vital for conserving agroecosystem biodiversity. Further, such elements are key building blocks that are manipulated via land management, thereby influencing the biotic and abiotic processes that underpin functioning agroecosystems. 2. Despite this critical role, there has been a...

Identifying functional impacts of heat-resistant fungi on boreal forest recovery after wildfire

Nicola Day, Steve Cumming, Kari Dunfield, Jill Johnstone, Michelle Mack, Kirsten Reid, Merritt Turetsky, Xanthe Walker & Jennifer Baltzer
Fungi play key roles in carbon (C) dynamics of ecosystems: saprotrophs decompose organic material and return C in the nutrient cycle, and mycorrhizal species support plants that accumulate C through photosynthesis. The identities and functions of extremophile fungi present after fire can influence C dynamics, particularly because plant-fungal relationships are often species-specific. However, little is known about the function and distribution of fungi that survive fires. We aim to assess the distribution of heat-resistant soil...

Data from: Zoogeographic patterns of pelagic oceanic cephalopods along the eastern Pacific Ocean

Christian M. Ibañez, Heather E. Braid, Sergio A. Carrasco, David A. Lopez-Cordova, Gabriela Torretti & Patricio A. Camus
Aim: To analyse the diversity and distribution of oceanic pelagic cephalopods along the Eastern Pacific Ocean, assessing the existence of biogeographic structuring, and the role of physical variables in generating geographical patterns. We hypothesized that the control by environmental factors, and the effect of geometric constraints, determine the range size and limits of distribution of oceanic cephalopods along the eastern Pacific Ocean, generating a latitudinal gradient in species richness. Location: Eastern Pacific Ocean (60°N –...

Data from: Community-level flammability declines over 25 years of plant invasion in grasslands

Josep Padullés Cubino, Hannah L. Buckley, Nicola J. Day, Robin Pieper & Timothy J. Curran
1. Exotic plant invasions can alter fire regimes in plant communities. Invaders often possess traits that differ from native plants in the community, resulting in increases or declines in community-level flammability, changing fire regimes, and potentially causing long-term modifications to plant community composition. Although considering traits of multiple invaders and native species together is useful to better understand how invasions change community-level flammability, few studies have done this. 2 Measured morphological and flammability traits of...

Data from: Molecular insights into the lichen genus Alectoria (Parmeliaceae) in North America

Richard Troy McMullin, James C. Lendemer, Heather E. Braid & Steven G. Newmaster
Alectoria is a genus of fruticose lichen characterised by the presence of usnic acid and conspicuous raised pseudocyphellae. This genus is particularly diverse and abundant in montane, boreal, and Arctic regions of North America. Because intermediate forms have been reported for several species of Alectoria on the continent, it has been suggested that these species were initially delimited based on the extremes of morphological gradients. Here, we use the results of molecular phylogenetic analyses of...

Data from: Growth and carbon relations of mature Picea abies trees under 5 years of free-air CO2 enrichment

Tamir Klein, Martin K. F. Bader, Sebastian Leuzinger, Manuel Mildner, Patrick Schleppi, Rolf T. W. Siegwolf, Christian Koerner, Martin K.-F. Bader & Rolf T.W. Siegwolf
Are mature forests carbon limited? To explore this question, we exposed ca. 110-year-old, 40-m tall Picea abies trees to a 550-ppm CO2 concentration in a mixed lowland forest in NW Switzerland. The site receives substantial soluble nitrogen (N) via atmospheric deposition, and thus, trees are unlikely N-limited. We used a construction crane to operate the free-air CO2 release system and for canopy access. Here, we summarize the major results for growth and carbon (C) fluxes....

CLiP Vanuatu Microplastics in water 2018

This dataset contains 2 csv files. One file contains data on microplastic abundance expressed in number of particles from 12 transects in Port Vila Bay and Mele Bay in Efate Island (Vanuatu) in 2018 with indication of volume and surface surveyed and transect info (duration, coordinates, comments). The file also contains information on blank used and contamination checks. The other file contains spectrum analysis of particles carried out with a ATR-FTIR. A READ-ME text file...

Data from: Reducing wildlife damage with cost-effective management programmes

Cheryl R. Krull, Margaret C. Stanley, Bruce R. Burns, David Choquenot & Thomas E. Etherington
Limiting the impact of wildlife damage in a cost effective manner requires an understanding of how control inputs change the occurrence of damage through their effect on animal density. Despite this, there are few studies linking wildlife management (control), with changes in animal abundance and prevailing levels of wildlife damage. We use the impact and management of wild pigs as a case study to demonstrate this linkage. Ground disturbance by wild pigs has become a...

Data from: Origins of food crops connect countries worldwide

Colin K. Khoury, Harold A. Achicanoy, Anne D. Bjorkman, Carlos Navarro-Racines, Luigi Guarino, Ximena Flores-Palacios, Johannes M. M. Engels, John H. Wiersema, Hannes Dempewolf, Steven Sotelo, Julian Ramírez-Villegas, Nora P. Castañeda Álvarez, Cary Fowler, Andy Jarvis, Loren H. Rieseberg & Paul C. Struik
Research into the origins of food plants has led to the recognition that specific geographical regions around the world have been of particular importance to the development of agricultural crops. Yet the relative contributions of these different regions in the context of current food systems have not been quantified. Here we determine the origins (‘primary regions of diversity’) of the crops comprising the food supplies and agricultural production of countries worldwide. We estimate the degree...

Vactors in Feature Films (2010-2013)

Jason Kennedy
This article describes a segment of data produced as part of an ongoing research project that attempts to catalogue the performance of every vactor (virtual actor) in feature films from 2010-2019. Vactors are computer-generated (CG) characters that produce performances alongside profilmic elements. While vactors are increasingly common in films, they are poorly catalogued and often regarded among both academics and film critics as disdainful, monolithic performance strategies. A comprehensive list of vactors can be used...

Effectiveness of community-based health education and home support program to reduce blood pressure among patients with uncontrolled hypertension in Nepal: A cluster-randomized trial

Mahesh Kumar Khanal, Pratiksha Bhandari, Raja Ram Dhungana, Pratik Bhandari, Lal Rawal, Yadav Gurung, K. N. Paudel, Amit Singh, Surya Devkota & Barbora De Courten
Background: Hypertension is a major global public health problem. Elevated blood pressure can cause cardiovascular and kidney diseases. We assessed the effectiveness of health education sessions and home support programs in reducing blood pressure among patients with uncontrolled hypertension in a suburban community of Nepal. Methods: We conducted a community-based, open-level, parallel-group, cluster randomized controlled trial in Birendranagar municipality of Surkhet, Nepal. We randomly assigned four clusters (wards) into intervention and control arms. We provided...

Terrestrial lichen data for Northwest Territories, Canada

Jennifer Baltzer, Geneviève Degré-Timmons, Nicola Day, Steve Cumming, Merritt Turetsky & Jill Johnstone
Increased fire activity due to climate change may impact the successional dynamics of boreal forests, with important consequences for caribou habitat. Early successional forests have been shown to support lower quantities of caribou forage lichens, but geographic variation in, and controls on, the rates of lichen recovery have been largely unexplored. In this study, we sampled across a broad region in northwestern Canada to compare lichen biomass accumulation in ecoprovinces, including the Saskatchewan Boreal Shield,...

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