The Determinants of Mining Company Response to Environmental Approvals Regulation: A Report of Australian Research

Companies react in different ways to environmental regulation. A prevailing view in the literature suggests that external factors, particularly stakeholder groups, exert the most influence on the environmental responses of firms. This paper reports on research that examines the influence of a range of possible determinants, both internal and external, on the way Australian mining companies respond to environmental approvals regulation. External pressures included stakeholder pressure, jurisdictional culture and market characteristics, and internal pressures included organizational culture, organizational learning, the influence of individuals within firms and company size. The study found that the internal pressures of organizational culture, organiza tional learning and the influence of individuals exert the greatest influence on mining company response to environmental approvals regulation. These results suggest that existing explanations of corporate environmental behaviour, which emphasize external factors, should be complemented by a focus on the internal dynamics of firms.     

Rapid Evolution in the Wild: Changes in Body Size, Life-History Traits, and Behavior in Hunted Populations of the Japanese Mamushi Snake

Abstract:  Rapid evolution caused by human exploitation of wildlife is not usually addressed in studies of the impacts of such exploitation despite its direct relevance to population persistence. Japanese mamushi ( Gloydius blomhoffii ), an endemic venomous snake of the Japanese archipelago, has been heavily hunted by humans, and many populations appear to be declining or are already extirpated. We compared local populations that have been hunted regularly with populations that have not been hunted. Mamushi in hunted populations were smaller, had fewer vertebrae, produced more and smaller offspring, had increased reproductive effort among smaller females, and in nature fled at greater distances from an approaching human and were less defensive than mamushi in unhunted populations, as predicted from life-history theory. Heritability estimates for body size, number of vertebrae, and antipredator behavior were statistically significant, and neonates from hunted sites showed the same distribution of altered characters (compared with those from unhunted sites) as adults. Thus, distribution of the divergent trait between hunted and unhunted sites appeared in part to be genetically based, which suggests rapid evolution to human predation pressures. Trait distributions in hunted populations probably deviate from naturally (as opposed to anthropogenically) selected optima and, therefore, may have long-term negative repercussions on population persistence. Because rapid evolution affects a suite of parameters that characterize exploited populations, accurate understanding of the impacts of exploitation and effective resource management and conservation can only be achieved if evolutionary consequences are considered explicitly.     

Characteristics of Important Stopover Locations for Migrating Birds: Remote Sensing with Radar in the Great Lakes Basin

Abstract:  A preliminary stage in developing comprehensive conservation plans involves identifying areas used by the organisms of interest. The areas used by migratory land birds during temporal breaks in migration (stopover periods) have received relatively little research and conservation attention. Methodologies for identifying stopover sites across large geographic areas have been, until recently, unavailable. Advances in weather-radar technology now allow for evaluation of bird migration patterns at large spatial scales. We analyzed radar data (WSR-88D) recorded during spring migration in 2000 and 2001 at 6 sites in the Great Lakes basin (U.S.A.). Our goal was to link areas of high migrant activity with the land-cover types and landscape contexts corresponding to those areas. To characterize the landscapes surrounding stopover locations, we integrated radar and land-cover data within a geographic information system. We compared landscape metrics within 5 km of areas that consistently hosted large numbers of migrants with landscapes surrounding randomly selected areas that were used by relatively few birds during migration. Concentration areas were characterized by 1.2 times more forest cover and 9.3 times more water cover than areas with little migrant activity. We detected a strong negative relationship between activity of migratory birds and agricultural land uses. Examination of individual migration events confirmed the importance of fragments of forested habitat in highly altered landscapes and highlighted large concentrations of birds departing from near-shore terrestrial areas in the Great Lakes basin. We conclude that conservation efforts can be more effectively targeted through intensive analysis of radar imagery.     

Identification of Areas in Brazil that Optimize Conservation of Forest Carbon,Jaguars, and Biodiversity

A major question in global environmental policy is whether schemes to reduce carbon pollution through forest management, such as Reducing Emissions from Deforestation and Degradation (REDD+), can also benefit biodiversity conservation in tropical countries. We identified municipalities in Brazil that are priorities for reducing rates of deforestation and thus preserving carbon stocks that are also conservation targets for the endangered jaguar (Panthera onca) and biodiversity in general. Preliminary statistical analysis showed that municipalities with high biodiversity were positively associated with high forest carbon stocks. We used a multicriteria decision analysis to identify municipalities that offered the best opportunities for the conservation of forest carbon stocks and biodiversity conservation under a range of scenarios with different rates of deforestation and carbon values. We further categorized these areas by their representativeness of the entire country (through measures such as percent forest cover) and an indirect measure of cost (number of municipalities). The municipalities that offered optimal co‐benefits for forest carbon stocks and conservation were termed REDDspots (n = 159), and their spatial distribution was compared with the distribution of current and proposed REDD projects (n = 135). We defined REDDspots as the municipalities that offer the best opportunities for co‐benefits between the conservation of forest carbon stocks, jaguars, and other wildlife. These areas coincided in 25% (n = 40) of municipalities. We identified a further 95 municipalities that may have the greatest potential to develop additional REDD+ projects while also targeting biodiversity conservation. We concluded that REDD+ strategies could be an efficient tool for biodiversity conservation in key locations, especially in Amazonian and Atlantic Forest biomes. Identificación de Áreas en Brasil que Optimizan la Conservación del Carbono del Bosque, Jaguares y la Biodiversidad.     

The Potential for Conservation of Polynesian Birds through Habitat Mapping and Species Translocation

Abstract: The dependency of highly endemic island floras on few potential pollinators in depauperate island faunas suggests that pollinators and seed dispersers may be crucial in the preservation of biodiversity in isolated oceanic islands. We discuss the hypothesis that flying foxes are "strong interactors" in South Pacific islands where they setwe as the principal pollinators and seed dispersers, This suggests that the ongoing decline and ultimate extinction of flying fox species on Pacific islands may lead to a cascade of linked plant extinctions. We propose an empirical test of this hypothesis: comparisons of plant reproductive success in Guam, which has virtually lost its flying fox populations, and Samoa, where signifcant populations remain.     

Effective Emergency Management: Reconsidering the Bureaucratic Approach

The command and control approach is compared with the Emergent Human Resources Model (EHRM) approach to emergency management. Four decades of systematic research shows that a rigid, bureaucratic command and control approach to emergency management generally leads to an ineffective emergency response. Previous studies and our own research suggest that flexible, malleable, loosely coupled, organizational configurations can create a more effective disaster response.     

Conservation Genetics of a Spring-dwelling Desert Fish, the Pecos Gambusia (Gambusia nobilis, Poeciliidae)

La estructura genética de la población de La Gambusia de Pecos ("Pecos Gambusia") fue evaluada mediante electróiresis proteínico para determinar la mejor manera de preservar la diversidad genética de las especies Este pequeño pez viviparo, federalmente protegido, es endémíco al desierto Chihuabuense de la región de Nuevo México y Tejas donde se encuentra en cuatro sistemas aisladas de manantiales et la cucenca del Rio Pecos El desecamiento de los manantiales debido a la baja de la tabla de agua es la amenaza más inmediata para la especie. El 52% del total de la diversidad genética detectada en la especie se debió a las diferencias entre las muestras de las distintas localidades, mientras que el restante 48% se debió a la vari ación dentro de las mismas muestras La mayor parte (67%) de la diversidud entre la muestras, se debió a diferencias entre las poblaciones de las cuatro áreas mayores de occurencia Las poblaciones del arroyo Toyah, en el área de Tejas, mostraron una hetergenenidad espacial notable de frecuencias alelas, en comparación con las poblaciones de las otras áres areas, niveles altos, poco communes, de variabilidad genética al interior de las muestras fueron detectados El patrón espacial de variación genética en la Gambusia de Pecos se acerca análogamente a aquella de una especie enépmica local que está federalmente protegida en otras dos áreas distintas También se encuentran una o más especies enéhicas de invertebrados en cada área donde habita la Gambusia de Pecos. Por ello, la protección del patrón natural de variabilidad genética en la Gambusia de Pecos contribuiría significativamente, a la conseroación de los recursos genéticos en un conjunto diverso de especies adaptadas al manantial