Van’s blog

Brazil’s Wild Felids Face Change: A New Challenge for Conservation

by Vanesa Alegre | 7 September 2025 | Wild Scope | 0 Comments

An innovative classification reveals how our wild cats respond to human-transformed landscapes Brazil's wild felids face one of the greatest challenges in their evolutionary history. From the majestic jaguar to the small pampas cat, these species must navigate...

Fork-tailed Flycatcher: Migration, Breeding, and Conservation of a Neotropical Icon

by Vanesa Alegre | 4 July 2025 | Wild Scope | 0 Comments

The Fork-tailed Flycatcher (Tyrannus savana) is one of the most fascinating birds of South America’s grasslands. With its distinctive forked tail and spectacular seasonal movements, this species has become a key model for understanding the migratory and breeding...

Understanding Ecological Thresholds: Limits or Leverage Points?

by Vanesa Alegre | 13 June 2025 | Insight Lab | 0 Comments

Ecological thresholds are critical points where a small change in an environmental variable can trigger an abrupt transformation in the system. Far from being merely technical tools, thresholds enable us to detect tipping points in ecosystem dynamics and have profound...

Co-Authoring with Clarity: Respectful and Effective Collaboration

by Vanesa Alegre | 15 May 2025 | Academic Life | 0 Comments

Co-authorship in academia can be complex. Often, when we're invited to co-author a paper, we're not entirely sure what's expected of us. From my own experience, I’ve made mistakes both as a co-author and as someone coordinating others’ contributions. Fortunately, I’ve...

Spatial Cross-Validation: Concepts, Importance, and Key Steps

by Vanesa Alegre | 22 February 2025 | Insight Lab | 0 Comments

What is Spatial Cross-Validation? Spatial Cross-Validation (SCV) is an essential technique in spatial analysis and species distribution modeling, landscape ecology, and other fields that work with geospatial data. Its main goal is to assess the performance of...

Hunting grounds: Jaguar and Peccary Interactions in the Pantanal

by Vanesa Alegre | 27 November 2024 | Wild Scope | 0 Comments

Our latest study explored the fascinating dynamics between jaguars (Panthera onca) and white-lipped peccaries (Tayassu pecari) in the Pantanal, one of the world’s most biodiverse wetlands. Using GPS data from eight individuals, we analyzed how landscape features and...

Navigating the edge: Insights into jaguar movement in fragmented landscapes

by Vanesa Alegre | 27 November 2024 | Wild Scope | 0 Comments

Our recent study explored jaguar movement across fragmented landscapes shaped by human activities such as agriculture and road construction. We analyzed GPS data from 54 individuals across South America to understand their movements through forest patches,...

Habitat selection of Brazilian cats: trends and gaps

by Vanesa Alegre | 19 July 2024 | Wild Scope | 0 Comments

Preliminary research highlights from my study on habitat selection among Brazil's wild felids Brazil is home to nine species of wild cats, eight of which are nationally threatened. While habitat loss due to agriculture and human expansion is recognized as their...

Jaguar Habitat Selection in the Anthropocene

by Vanesa Alegre | 16 July 2024 | Wild Scope | 0 Comments

Main figure: Example of the predominance of road use in jaguars, in three different regions. 1) In Brazil and 2) in Paraguay. Jaguar photo by Eduardo Fragoso In this recent research, published in the Journal for Nature Conservation, We explored the intricate...

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Navigating the edge: Insights into jaguar movement in fragmented landscapes

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