Macroinvertebrate assemblages in mountain tributaries of glacial-fed and rain-fed rivers in eastern Nepal

While river macroinvertebrates are the most widely used form of bioindicators, their baseline information, although crucial, is scarce in Nepal. The main objective of this study was to assess the macroinvertebrate assemblages in mountain tributaries of the glacial-fed Tamor and rain-fed Kamala rivers. A total of eight sites were sampled during March 2015 (Spring), November 2015 (Autumn), January 2016 (Winter), and May 2016 (Summer). Altogether, 49 Families of macroinvertebrates belonging to 15 Orders were identified with 39 Families and 12 Orders in Tamor’s tributaries, and 33 Families and 10 Orders in Kamala’s tributaries. Non-metric multi-dimensional scaling (NMDS) revealed different assemblages between the two river systems. The most dominant Order in the Tamor was Ephemeroptera and it was Trichoptera in the Kamala. EPT (Ephemeroptera Plecoptera Trichoptera) assemblages were the most abundant in all four seasons for both the river systems and higher % EPT in Tamor’s tributaries indicate better water quality than in the Kamala tributaries. Typical cold water adapted Families such as Rhyacophilidae and Stenopsychidae were observed in Tamor’s tributaries whereas in Kamala’s tributaries, warm water adapted Families like Naididae and Thiaridae were found, reflecting a difference in the abiotic variables such as temperature, dissolved oxygen attributed to each of the catchments. This baseline data can serve as the foundation for further bioassessment including those of climate change impacts on aquatic biodiversity.

The Effectiveness of Indigenous Conflict Management Strategies in Localized Contexts

The professionalization of addressing conflict creates a field filled with specialists highly trained to apply modularized and manualized, often evidence-based solutions. But how effective are these professionalized conflict management strategies in Indigenous and localized cultural contexts compared to homegrown Indigenous approaches? While instances of these Indigenous peacebuilding and conflict management strategies are routine throughout the world, to date, no one has attempted to test which conflict management approaches are most effective empirically, nor has the literature sufficiently addressed the contexts in which strategies are most helpful. Using multi-dimensional scaling and chi-square tests of independence applied to a similarity matrix of co-occurrences from select Outline of Cultural Materials subjects from the Human Relations Area Files cultural database, this study tests the hypothesis: Indigenous conflict management strategies are more effective (i.e., less associated conflict) than non-Indigenous conflict management strategies in Indigenous contexts. We show that Indigenous conflict management approaches co-occur with conflict less often than non-Indigenous strategies. From an applied perspective, when we break conflict into four discreet types—sociocultural/interpersonal, political, legal/judicial, and economic—Indigenous conflict management strategies co-occur most often with socio-cultural types of conflicts. The results suggest that Indigenous approaches are more effective in Indigenous contexts overall, while they are most often applied to socio-cultural and interpersonal conflicts. Based on our findings, homegrown solutions effectively manage, resolve, and transform localized conflicts.

Paleogeographic position of the Ordovician rocks from the Svoge Unit, Western Balkan – preliminary results

Two sandstone samples from the upper and lower parts of the Ordovician succession of the Svoge Unit were analyzed in order to determine their detrital zircon U-Pb age spectra using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Multi-dimensional scaling statistical technique allowed a reliable objective identification of the potential source areas in North Africa and paleogeographic reconstructions were made. Both samples indicate a close proximity to the Trans-Saharan Belt provenance, which is the most probable source of the detrital component.

Supplemental Material: Early Pennsylvanian sediment routing to the Ouachita Basin (southeastern United States) and barriers to transcontinental sediment transport sourced from the Appalachian orogen based on detrital zircon U-Pb and Hf analysis

<div>Table S1: Detrital zircon (DZ) U-Pb isotopic data. Table S2: DZ U-Pb isotopic data from a higher-<i>n </i>approach. Table S3: DZ Hf isotopic data. Table S4: Multi-dimensional scaling (MDS) sample key. <br></div>

Supplemental Material: Early Pennsylvanian sediment routing to the Ouachita Basin (southeastern United States) and barriers to transcontinental sediment transport sourced from the Appalachian orogen based on detrital zircon U-Pb and Hf analysis

<div>Table S1: Detrital zircon (DZ) U-Pb isotopic data. Table S2: DZ U-Pb isotopic data from a higher-<i>n </i>approach. Table S3: DZ Hf isotopic data. Table S4: Multi-dimensional scaling (MDS) sample key. <br></div>