Anna L. Hargreaves

The paper assesses pollination effectiveness and success in sundial lupine populations across their geographic range, finding no decline in pollination at the northern edge.

The paper modifies transplant experiments to test habitat quality and quantity effects on species range limits, finding both factors decline at the range edge of Rhinanthus minor.

The paper shows urbanization weakens the latitudinal diversity gradient in birds, with tropical cities losing more species due to higher specialist bird assemblages.