Quantifying the global land carbon sink is essential for understanding carbon‐climate feedbacks and developing effective mitigation strategies. Despite decades of research using eddy covariance, remote sensing, and atmospheric observations, carbon sink estimates remain highly uncertain across different approaches. The key challenge is to obtain the right global land carbon sink estimates for the right reasons. In this review,...

It has typically been assumed that habitat destruction, characterized by habitat loss and fragmentation, has consistently negative effects on biodiversity. While numerous empirical studies have shown the detrimental effects of habitat loss, debate continues as to whether habitat fragmentation has universally negative effects. To explore the effects of habitat fragmentation, we developed a simple model for site‐occupancy dynami...

Understanding the mechanisms of biodiversity maintenance is a fundamental issue in ecology. The possibility that species disperse within the landscape along differing paths presents a relatively unexplored mechanism by which diversity could emerge. By embedding a classical metapopulation model within a network framework, we explore how access to different dispersal networks can promote species coexistence. While it is clear th...