Illegal wildlife trade: An analysis of carnivore products found in markets in Benin and Niger

West Africa is home to one of the largest protected area systems in Africa, the W-Arly- Pendjari (WAP) Complex, which provides a last refuge for many threatened carnivore species extirpated from most other protected areas in the region. However, rising global demand for wildlife products has increased concerns about the impacts of Illegal Wildlife Trade (IWT) on these species. To assess the extent of IWT, covert market surveys were conducted in Benin and Niger to identify wildlife products and derivatives coming from carnivore species (African civet, serval, caracal, lion, cheetah, leopard, and spotted hyena) suspected to be targeted by IWT. When possible, information about product origin was gathered to understand trading routes. Data were analysed to determine if products were available in markets due to their proximity to source populations or due to accessibility to trade and transport hubs. A variety of products from several threatened species, including multiple lion skins, were found in Benin and Niger. Products were found more frequently in markets near the WAP Complex and main trade and transport hubs. Sellers reported that a large majority of products originated from international trade, but some could also have been sourced from the WAP Complex. There was little evidence indicating that product availability was more affected by the distance to the WAP Complex than by the distance to international transport hubs, suggesting that trade was widespread across both countries. The study provides an evidence base and monitoring baselines to identify and assess interventions to address IWT and ultimately reduce illegal trafficking of wildlife

The global decline of cheetah Acinonyx jubatus and what it means for conservation

Establishing and maintaining protected areas (PAs) are key tools for biodiversity conservation. However, this approach is insufficient for many species, particularly those that are wide-ranging and sparse. The cheetah Acinonyx jubatus exemplifies such a species and faces extreme challenges to its survival. Here, we show that the global population is estimated at ∼7,100 individuals and confined to 9% of its historical distributional range. However, the majority of current range (77%) occurs outside of PAs, where the species faces multiple threats. Scenario modeling shows that, where growth rates are suppressed outside PAs, extinction rates increase rapidly as the proportion of population protected declines. Sensitivity analysis shows that growth rates within PAs have to be high if they are to compensate for declines outside. Susceptibility of cheetah to rapid decline is evidenced by recent rapid contraction in range, supporting an uplisting of the International Union for the Conservation of Nature (IUCN) Red List threat assessment to endangered. Our results are applicable to other protection-reliant species, which may be subject to systematic underestimation of threat when there is insufficient information outside PAs. Ultimately, conserving many of these species necessitates a paradigm shift in conservation toward a holistic approach that incentivizes protection and promotes sustainable human–wildlife coexistence across large multiple-use landscapes

Assessing the chemical involvement of limestone powder in sodium carbonate activated slag

This study aims to investigate the effect of limestone powder (LP) on the reaction of sodium carbonate activated slag. The results show that the incorporated LP up to 30% improves the strength development, especially at advanced curing ages. A slightly accelerated reaction is observed for samples containing low amount of LP (≤5%), while mixture with 10% LP shows the optimized results with respect to the heat release and strength development. Chemical effect of incorporating LP is observed at high replacement levels (≥15%), indicated by the formation of a new phase, natron (Na2CO3·10H2O). Besides, relatively high contents of hydrotalcite-like phases are generated when increasing the dosage of limestone powder. The chemical changes, including the volume changes of generating natron and the transformation of natron to calcite, is potentially responsible for the enhanced mechanical properties