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View of north end from the east side during construction.

The Binners’ Project is a Vancouver-based initiative dedicated to advocating for waste-pickers in the city. Am Johal interviews Binners’ Project staff members Davin Boutang and Anna Godefroy about their beginnings and evolution as an organization. They discuss their Universal Carts Initiative, the Coffee Cup Revolution and how the project has grown in its capacity to create opportunities for binners, destigmatizing the work they do in diverting waste from landfills.

One of the most important drivers of local adaptation for forest trees is climate. Coupled to these patterns, however, are human-induced disturbances through habitat modification and pollution. The confounded effects of climate and disturbance have rarely been investigated with regard to selective pressure on forest trees. Here, we have developed and used a population genetic approach to search for signals of selection within a set of 36 candidate genes chosen for their putative effects on adaptation to climate and human-induced air pollution within five populations of red spruce (Picea rubens Sarg.), distributed across its natural range and air pollution gradient in eastern North America. Specifically, we used FST outlier and environmental correlation analyses to highlight a set of seven single nucleotide polymorphisms (SNPs) that were overly correlated with climate and levels of sulphate pollution after correcting for the confounding effects of population history. Use of three age cohorts within each population allowed the effects of climate and pollution to be separated temporally, as climate-related SNPs (n = 7) showed the strongest signals in the oldest cohort, while pollution-related SNPs (n = 3) showed the strongest signals in the youngest cohorts. These results highlight the usefulness of population genetic scans for the identification of putatively nonneutral evolution within genomes of nonmodel forest tree species, but also highlight the need for the development and application of robust methodologies to deal with the inherent multivariate nature of the genetic and ecological data used in these types of analyses. Bashalkhanov-Eckert-Rajora_Mol_Ecol_DATARed spruce genetic and climate dataBashalkhanov-Eckert-Rajora_genetic_analysesR Scripts for Genetic Data AnalysisBashalkhanov-Eckert-Rajora-climate_dataR Scripts for Climate Data Analysis

We provide weighted Monte Carlo samples for the, the natural logarithm of the sample weight when using two different measurements of J0740+6620 Radius, and when using no measurement of the radius, but just using the established mass measurement, the maximum Tolman-Oppenheimer-Volkoff (TOV) mass, the pressure divided by the speed of light squared at nuclear saturation, twice nuclear saturation, and six times nuclear saturation density, the dimensionless tidal deformability of a 1.4 and 2.0 solar mass NS, and the radius of a 1.4 and 2.0 solar mass NS, as well as the number of stable branches in the M-R curve, the central density of a maximum TOV mass star, the maximum speed of sound, the baryon density at the maximum speed of sound, and the speed of sound at the central density of a maximum TOV mass star. See the README.md for more details. This data release contains weighted Monte Carlo samples associated with Legred, Chatziioannou, Essick, Han, and Landry, 2021 "Impact of PSR J0740+6620 radius constraint on the properties of high-density matter" Phys. Rev. D 104, 063003; doi:10.1103/PhysRevD.104.063003

Transmitted solar radiance was measured using an ARC (Advanced-Radiance-Collector) RAMSES hyper-spectral radiometer (TriOS) mounted on the ROV during the ARTofMELT2023 expedition in May and June 2023. All times are given in Universal Coordinated Time (UTC).

The degree to which group members share reproduction is dictated by both within-group (e.g. group size and composition) and between-group (e.g. density and position of neighbours) characteristics. While many studies have investigated reproductive patterns within social groups, few have simultaneously explored how within-group and between-group social structure influence these patterns. Here, we investigated how group size and composition, along with territory density and location within the colony, influenced parentage in 36 wild groups of a colonial, cooperatively breeding fish Neolamprologus pulcher. Dominant males sired 76% of offspring in their group, whereas dominant females mothered 82% of offspring in their group. Subordinate reproduction was frequent, occurring in 47% of sampled groups. Subordinate males gained more paternity in groups located in high-density areas and in groups with many subordinate males. Dominant males and females in large groups and in groups with many reproductively mature subordinates had higher rates of parentage loss, but only at the colony edge. Our study provides, to our knowledge, the first comprehensive quantification of reproductive sharing among groups of wild N. pulcher, a model species for the study of cooperation and social behaviour. Further, we demonstrate that the frequency of extra-pair parentage differs across small social and spatial scales. Parentage groupsSubordinates

Sexually antagonistic genetic variation can pose limits to the independent evolution and adaptation of the sexes. The extent of sexually antagonistic variation is reflected in the intersex genetic correlation for fitness (rwFM). Previous estimates of this correlation have been mostly limited to populations in environments to which they are already well adapted, making it difficult to gauge the importance of sexually antagonistic genetic variance during the early stages of adaptation, such as that occurring following abrupt environmental change or upon the colonization of new habitat. Here we assayed male and female lifetime fitness in a population of Drosophila serrata in four novel laboratory environments. We found that rwFM varied significantly across environments, with point estimates ranging from positive to negative values of considerable magnitude. We also found that the variability among estimates was because, at least in part, of significant differences among environments in the genetic variances of both male and female fitness, with no evidence of any significant changes in the intersex covariance itself, although standard errors of these estimates were large. Our results illustrate the unpredictable nature of rwFM in novel environments and suggest that, although sexually antagonistic genetic variance can be pronounced in some novel environments, it may have little effect in constraining the early stages of adaptation in others. Punzalan et al 2013_DryadFitness data (i.e. wildtype and mutant offspring number) from laboratory crosses of inbred lines against (inbred) reference lines, when reared in 4 novel environments (C = corn, R = rice, S = salt, Y = yeast). "Trait" is simply a merger of "Sex" and "Environment" columns. Each row corresponds to a replicate cross (vial).

Hibernation requires balancing energy and water demands over several months with no food intake for many species. Many studies have considered the importance of fat for hibernation energy budgets because it is energy dense and can be stored in large quantities. However, protein catabolism in hibernation has received less attention and whole animal changes in lean mass have not previously been considered. We used quantitative magnetic resonance body composition analysis to measure fat and lean mass in two systems of hibernating bats, emphasizing the importance of lean mass for energy and water budgets. For cave myotis ( Myotis velifer ), lean mass represented 38 and 25% (male and female respectively) of pre-hibernation mass gain. In Townsend’s big-eared bats ( Corynorhinus townsendii ), lean mass accounted for 18 – 35% of mass change during hibernation, but lean only contributed 3 – 7% of the energy budget. Water is produced from the catabolism of both fat and lean, but net water production is much less than gross water production when accounting for the water required to excrete urea. Although most mammals can’t rely on protein catabolism for metabolic water production due to the water cost of excreting urea, we propose a variation on the protein-for-water strategy whereby hibernators could temporally compartmentalize the benefits of protein catabolism to periods of torpor, and the water cost to periodic arousals when free drinking water is typically available. Combined, our analyses demonstrate that lean mass is dynamic in hibernation, with important functional consequences for both energy and water budgets. 

This dataset links the commodity sectors of EXIOBASE3.7 (i.e., pxp version) to additional environmental extensions (e.g., formaldehyde, toluene, acrolein, etc.) based on USEEIOv1.1 extensions. Only environmental extensions that are not present in EXIOBASE were added. This satellite matrix can thus simply be added to the satellite matrix of EXIOBASE without fear of double counting emissions. 1,766 emissions were added. The dataset also includes a characterization matrix for these additional flows, characterized (for 36 impact categories) using the IMPACT World+ life cycle impact assessment method (Bulle, 2019). The methodology behind the determination of these additional environmental extensions is described in (Agez et al., 2021), and is more extensively described in (Muller, 2019), albeit in french. In short, we reapply the emission factors from USEEIO (so specific to the US) to all countries of EXIOBASE, which has obvious limitations, but can constitute a good-enough estimation in some cases. (Agez et al., 2021) and (Muller, 2019) for example, show that these additional environmental extensions have a significant effect on some impact categories, namely, ecotoxicity and ozone layer depletion. In other words, normal environmental extensions of EXIOBASE are not equipped to study these impact categories. Other categories are marginally impacted (from 0.5 to 3% increase of the impact when looking at the whole economy's impact). Version of IW+ used: 10.5281/zenodo.3521034 {"references": ["Agez, M., Muller, E., Patouillard, L., Arvesen, A., Margni, M., Samson, R., & Majeau-Bettez, G. (2021). Correcting remaining truncations in hybrid LCA database compilation. Journal of Industrial Ecology. https://doi.org/10.1111/jiec.13132", "Muller, E. (2019). Estimation et compl\u00e9tion des flux \u00e9l\u00e9mentaires manquants du tableau entr\u00e9es-sorties multir\u00e9gional EXIOBASE. Polytechnique Montreal. Retrieved from https://publications.polymtl.ca/3920/", "Bulle, C., Margni, M., Patouillard, L., Boulay, A. M., Bourgault, G., De Bruille, V., \u2026 Jolliet, O. (2019). IMPACT World+: a globally regionalized life cycle impact assessment method. International Journal of Life Cycle Assessment, 1653\u20131674. https://doi.org/10.1007/s11367-019-01583-0"]}