Individual and community-level impacts of the unarmed all-women Black Mamba Anti-Poaching Unit.

In a conservation setting where escalating tension has been the norm, the unarmed primarily female-composed Black Mambas Anti-Poaching Unit (BMAPU) in South Africa are a successful counterpoint in that they have decimated poaching using only diplomacy and patrols. We sought to understand if the BMAPU is achieving its secondary goal of influencing support for conservation and wildlife among the nearby populace via community-based conservation actions including outreach and environmental education. We also determined the impact that the program has on the Mambas themselves. Using a mixed-methods survey we conducted structured in-person interviews with 120 community members from four communities where the women of the BMAPU live, and among all the women that were on active duty in the BMAPU at the time of the surveys. We found that all participants in the BMAPU program reported improved self and community perception of their societal role as financial providers, as well as their sense of agency and self-efficacy, relative to before becoming rangers. We also found that having BMAPU rangers living in the communities by itself did not contribute to community-level support for wildlife conservation or protected areas. However, one community with both a large-scale children's conservation education program and an equitable distribution of financial benefits paid by the nearby conservation concessionaires was significantly more supportive of wildlife conservation and protected areas than the other three. Further research to parse the relative contributions of the two contributing factors of education and financial benefit would help clarify their relative contributions. From this study, we conclude that a combination of child-focused conservation education programs and equitable distribution of financial benefits leads to increased community support for wildlife, conservation, and protected natural areas, and decreases support for poaching.

Addressing the raven food subsidy challenge by engaging restaurants to close their dumpsters.

Ravens have benefitted from resource subsidies provided by humans so much that their population has increased by over 800% in the western Mojave desert over the last 50 years. Our food waste is an especially large subsidy. Raven predation is one of the greatest threats to desert tortoise survival in the California desert. We sought to create and evaluate a behavioral change program among restaurants in Yucca Valley and Twentynine Palms, California in the western Mojave with elevated raven populations. Half of the 60 restaurants in these two communities received an intervention encouraging them to close their dumpsters while the other half served as controls with no intervention. Treatment restaurants received two in-person visits to discuss the manifold importance of dumpster closure and laminated information signs to display and extend communication to staff. We surveyed all dumpsters for open/closed status five times before the intervention and five times again 3 months after the intervention. We found a significant increase in closure rates among treatment restaurants due to the interventions, with an average of 9.5% increase toward maximum possible lid closure. Restaurants achieving 80%+ closure received "Gold Star Awards" to further stimulate community-wide behavior change by publicly recognizing and encouraging desired behaviors. We summarize dumpster closure rates from similar interventions in nearby Joshua Tree and across the Coachella Valley to illustrate how local social norms may influence behavior.

Population structure of the primary malaria vector in South America, Anopheles darlingi, using isozyme, random amplified polymorphic DNA, internal transcribed spacer 2, and morphologic markers

A genetic and morphologic survey of Anopheles darlingi populations collected from seven countries in Central and South America was performed to clarify the taxonomic status of this major malaria vector species in the Americas. Population genetics was based on three techniques including isozyme, random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR), and internal transcribed spacer 2 (ITS2) markers. The results of the isozyme analysis indicated moderate differences in the allele frequencies of three putative loci (glutamate oxalaoacetate transaminase-1, isocitrate dehydrogenase-1, and phosphoglucomutase) of the 31 analyzed. No fixed electromorphic differences separated the populations of An. darlingi, which showed little genetic divergence (Nei distances = 0.976-0.995). Fragments produced by RAPD-PCR demonstrated evidence of geographic partitioning and showed that all populations were separated by small genetic distances as measured with the 1 - S distance matrix. The ITS2 sequences for all samples were identical except for four individuals from Belize that differed by a three-base deletion (CCC). The morphologic study demonstrated that the Euclidean distances ranged from 0.02 to 0.14, with the highest value observed between populations from Belize and Bolivia. Based on these analyses, all the An. darlingi populations examined demonstrated a genetic similarity that is consistent with the existence of a single species and suggest that gene flow is occurring throughout the species' geographic range.(Au)