Urban green spaces—parks, gardens, reserves, and street trees—are essential components of city ecosystems. But as cities expand, these green areas often become fragmented, isolated by roads, buildings, and other infrastructure. At Neftaly, we’re investigating how this fragmentation reshapes urban food webs and alters ecological relationships between species.
Food webs represent the complex network of who eats whom in an ecosystem. In fragmented urban landscapes, these relationships become disrupted, leading to cascading effects on biodiversity, species behavior, and ecosystem functioning.
Key Impacts of Green Space Fragmentation:
- Disrupted Predator-Prey Dynamics: Isolated patches may support prey species (like insects or small mammals) but lack the predators that regulate them, leading to population imbalances.
- Reduced Trophic Complexity: Smaller or more isolated green spaces often host fewer species, reducing the number of trophic levels and interactions.
- Altered Species Composition: Generalist species that thrive in disturbed habitats may outcompete more specialized or sensitive native species, shifting the structure of food webs.
- Interrupted Nutrient Cycling: Changes in herbivore and decomposer populations can affect how nutrients move through urban ecosystems, impacting plant health and soil function.
Neftaly’s Research Focus:
- Comparative Habitat Studies: Examining food web differences across green spaces of varying size, isolation, and vegetation structure.
- Species Interaction Mapping: Identifying key species and ecological interactions most affected by fragmentation.
- Connectivity Modelling: Using spatial tools to evaluate how landscape connectivity influences food web integrity.
- Restoration Strategies: Recommending how to design, connect, and manage urban green spaces to support more robust and resilient food webs.
By understanding the ecological consequences of green space fragmentation, Neftaly is helping cities make smarter planning decisions that maintain biodiversity and ecosystem services. Restoring and reconnecting urban habitats isn’t just about aesthetics—it’s about keeping urban nature functional, resilient, and alive.

