Publications by authors named "Chris Barichievy"
Article Synopsis
- Addressing unexpected events and uncertainty is a major challenge in today's world, where ecosystem management struggles due to outdated policies that can't keep up with rapid environmental changes.
- Managing by only meeting basic regulatory standards has often led to negative consequences, highlighting the need for new strategies to tackle complex social-ecological issues.
- A project in the US Great Plains used the panarchy framework, rooted in resilience theory, to combat grass-to-tree dominance changes, reflecting both the effectiveness of this approach and its potential to inspire policy reform compared to conventional management techniques.
Article Synopsis
- The study discusses the importance of recognizing patterns across different scales in analyzing complex systems, emphasizing that discontinuity approaches can help identify these scales and improve our understanding of resilience in various contexts.
- It highlights the current limitations of existing discontinuity methods, such as their subjectivity and computational challenges, which necessitate a simpler and clearer alternative.
- The researchers introduce a new method for detecting discontinuities in census data through resampling a neutral model, and they provide the relevant R code, aiming to enhance both fundamental and applied ecological research.
Article Synopsis
- The cross-scale resilience model explains how ecological resilience arises from the distribution of species' functions across different spatial and temporal scales, offering a quantitative approach in a mostly qualitative field.
- While the model considers where and when species are present and their roles, it overlooks the abundance of species and their functions in assessing resilience.
- The authors propose incorporating species abundance into the model and outline testable hypotheses to better understand and measure ecological resilience in the context of rapid global changes.
Background: The Arabian Sand Gazelle (Gazella subgutturosa marica, Thomas, 1897) has been extirpated throughout the Arabian Peninsula. Captive breeding and reintroduction for conservation purposes require veterinary support and the use of hematology RIs.
Objectives: The purpose of the study was to establish hematological RIs for the Arabian Sand Gazelle.
Conservation in the Kingdom of Saudi Arabia is relatively young, yet have made considerable gains in conservation through strategic proclamation and reintroductions. Changes in land use, illegal hunting and competition with domestic stock has decimated the native ungulates, meaning that the survival of the native ungulate species is now completely dependent on protected area network. The challenge is to sustain this network to make meaningful conservation impact into the future.
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- Research has typically focused on early warning indicators for time-based changes, overlooking their potential use for identifying spatial patterns in ecological contexts.
- Traditional ecoregion maps, which usually rely on potential vegetation, often miss ongoing changes influenced by factors like climate change and land use.
- The study demonstrates that using Fisher information on animal data reveals ecological boundaries more accurately than conventional methods, indicating that defining spatial regimes based on animal communities may align better with the realities of rapidly changing ecosystems.
Ecological structures and processes occur at specific spatiotemporal scales, and interactions that occur across multiple scales mediate scale-specific (e.g., individual, community, local, or regional) responses to disturbance.
View Article and Find Full Text PDFThe cross-scale resilience model states that ecological resilience is generated in part from the distribution of functions within and across scales in a system. Resilience is a measure of a system's ability to remain organized around a particular set of mutually reinforcing processes and structures, known as a regime. We define scale as the geographic extent over which a process operates and the frequency with which a process occurs.
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