Ecological Vulnerability of Adult Female Marine Turtles as Indicators of Opportunities for Regional Socioecosystem Management in the Southern Gulf of Mexico

Planning for marine ecosystems management demands spatially explicit information about structural and functional components, in a tradeoff between including the most taxa and keeping it functional. Sentinel, umbrella, and surrogate taxa are strategic for developing indexes that account for other associated species and contribute to a sustainable administration of our seas. Marine turtles feature the former species descriptions, and the knowledge on their ecology contributes to design conservation and restoration strategies in regions they occupy, such as the Gulf of Mexico. Several administrative tools exist to govern marine territories for biodiversity conservation, and assessing how these tools interact with the ecological vulnerability of endangered species is crucial for improving public policies. We assessed the spatial interactions among ecological sensitivity, vulnerability, and the potential impacts on four marine turtle species in the southern Gulf of Mexico and northwestern Caribbean Sea with territorial management tools (natural protected areas, marine priority sites, and ecoregions). A small percentage of the most vulnerable areas is inside natural protected areas, while marine priority sites include a higher percentage. We identified spatial covering gaps that need to be addressed to ensure the conservation and recovery of these endangered species in the Gulf of Mexico and proposed key regions for maximizing territorial conservation.

Spatial and Temporal Evolution of Ecological Vulnerability Based on Vulnerability Scoring Diagram Model in Shennongjia, China

Background: Shennongjia is one of the most important ecological function areas and ecologically vulnerable zones in the world. With the rapid development of social economies, especially tourism, the ecological environment of Shennongjia has experienced profound changes. Results: (1) During the study period, the overall ecological vulnerability of Shennongjia is in a mild vulnerability level, exhibiting differentiation characteristics of high in the northeast and low in the southwest. High vulnerability zones are mainly distributed in the main towns and roads. (2) The risk of ecological vulnerability of the entire region presents the characteristics of continuous decline. (3) Land-use types, population density, and vegetation coverage are the main factors driving the evolution of ecological vulnerability. (4) A high level of coupling coordination exists between ecological vulnerability and landscape patterns.Conclusions: Analyses of the ecological vulnerability of Shennongjia shows that the entire region is in a mild vulnerability level. The extreme vulnerability risk of the ecological environment shows polarization. The evolution of ecological environment in Shennongjia is the result of the interaction between human activities and natural environment. This study offers an effective way to assess ecological vulnerability and provides some strategies and guidance for improving ecological security.

The Promise of Jewish Theistic Naturalism for Jewish Environmental Ethics

This paper seeks to explain the greater appeal of Jewish naturalistic theologies given our greater appreciation today of the ecological vulnerability of our world. By examining the theological writings of two prominent twentieth-century Jewish thinkers—Hans Jonas and Arthur Green. The paper demonstrates that their espousal of naturalistic yet theistic worldview in their interpretations and reconstructions of Jewish tradition shares significant affinities and promotes an ethical attitude toward the environment. First, I show that Jonas and Green reject reductive forms of naturalism and embrace a nonreductive or “expansive” style of naturalism. Then, I argue that their theologies intend to stimulate a sense of responsibility toward all creation by envisioning humans as partners of a non-omnipotent God. I conclude by noting the metaphysical, epistemological, and moral promises of theistic naturalism to Jewish environmental ethics.

Spatio-Temporal Analysis of Ecological Vulnerability and Driving Factor Analysis in the Dongjiang River Basin, China, in the Recent 20 Years

The global ecological environment faces many challenges. Landsat thematic mapper time-series, digital elevation models, meteorology, soil types, net primary production data, socio-economic data, and auxiliary data were collected in order to construct a comprehensive evaluation system for ecological vulnerability (EV) using multi-source remote sensing data. EV was divided into five vulnerability levels: potential I, slight II, mild III, moderate IV, and severe V. Then, we analyzed and explored the spatio-temporal patterns and driving mechanisms of EV in the region over the past 20 years. Our research results showed that, from 2001 to 2019, the DRB was generally characterized as being in the severe vulnerability class, with higher upstream and downstream EV classes and a certain amount of reduction in the midstream EV classes. Moreover, EV in the DRB continues to decrease. The spatio-temporal EV patterns in the DRB were significantly influenced by the relative humidity, average annual temperature, and vegetation cover over the past 20 years. Our work can provide a basis for decision-making and technical support for ecosystem protection, ecological restoration, and ecological management in the DRB.

Gridded Assessment of Ecological Vulnerability in Loess Hilly Region of Western Henan Province, China

Based on meteorological, remote sensing, socio-economic data in 2000 and 2019 and PSR (Pressure-State-Response) evaluation model, an evaluation index system of ecological vulnerability in the loess hilly region of western Henan Province was constructed. Using spatial principal component analysis and spatial autocorrelation analysis, the ecological vulnerability of the study area was quantitatively evaluated with 2km×2km grid as the research scale, and the driving force of ecological vulnerability was determined by principal component load matrix analysis. The results show that: (1) The ecological environment in the Loess hilly region of western Henan showed a deteriorating trend from 2000 to 2019. (2) The vulnerability degree of the ecological environment in different counties was obviously different, and the vulnerability degree in the main city and suburbs was always at an extreme vulnerable level, while other regions showed different trends. (3) From 2000 to 2019, the ecological vulnerability had significant positive correlation and aggregation characteristics. The H-H clustering areas were mainly distributed in extreme vulnerable areas, while the L-L clustering areas are mainly related to negligible and light vulnerable areas. (4) The main driving factors of ecological vulnerability in the loess hilly region of western Henan are elevation, slope, terrain relief, degree of land use, annual mean precipitation, NDVI, annual mean temperature, land use type and urbanization rate.

Integration of Vulnerability and Hazard Factors for Landslide Risk Assessment

Among the numerous natural hazards, landslides are one of the greatest, as they can cause enormous loss of life and property, and affect the natural ecosystem and their services. Landslides are disasters that cause damage to anthropic activities and innumerable loss of human life, globally. The landslide risk assessed by the integration of susceptibility and vulnerability maps has recently become a manner of studying sites prone to landslide events and managing these regions well. Developing countries, where the impact of landslides is frequent, need risk assessment tools that enable them to address these disasters, starting with their prevention, with free spatial data and appropriate models. Our study shows a heuristic risk model by integrating a susceptibility map made by AutoML and a vulnerability one that is made considering ecological vulnerability and socio-economic vulnerability. The input data used in the State of Guerrero (México) approach uses spatial data, such as remote sensing, or official Mexican databases. This aspect makes this work adaptable to other parts of the world because the cost is low, and the frequency adaptation is high. Our results show a great difference between the distribution of vulnerability and susceptibility zones in the study area, and even between the socio-economic and ecological vulnerabilities. For instance, the highest ecological vulnerability is in the mountainous zone in Guerrero, and the highest socio-economic vulnerability values are found around settlements and roads. Therefore, the final risk assessment map is an integrated index that considers susceptibility and vulnerability and would be a good first attempt to challenge landslide disasters.