WHAT THE EVIDENCE SAYS
An Ecology report followed four recent African wild-dog dispersal events associated with Zambia’s major populations. The groups moved a combined 9,863 km, including a maximum path length of 4,126 km, and demonstrated that wild dogs can traverse protected areas, game-management areas and heavily human-used landscapes. But several dispersers died or disappeared in snaring-risk zones, groups often failed to immigrate into established packs, and the authors conclude that the extraordinary movements yielded little genetic or demographic connectivity.
WHY IT MATTERS / OUR READ
This separates landscape permeability from functional connectivity. A corridor can be physically traversable and still fail as conservation infrastructure if animals cannot survive the matrix, recruit into another population or reproduce. For large-carnivore planning, monitoring movement paths alone can therefore overstate success; survival, immigration and conflict risk belong in the connectivity metric.
CAVEATS / UNCERTAINTY
The paper reports a small number of exceptional dispersal events rather than a population-wide estimate of gene flow. Some mortality causes are inferred from collar and movement evidence, and the authors explicitly distinguish observed movement from demonstrated demographic or genetic connectivity.
SOURCE
Ecology
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