A land manager has mapped a species-rich hedgerow between two cereal fields in central England. Fig. 1 shows the hedge, an old oak, a grassy margin and a ga...
Question 1 Report
A land manager has mapped a species-rich hedgerow between two cereal fields in central England. Fig. 1 shows the hedge, an old oak, a grassy margin and a gap made when a farm vehicle entered the field. Birds, small mammals and insects were observed moving along the hedge. The manager wants to retain food production while improving connectivity between two nearby woodland fragments. Use Fig. 1 as a study figure.
(a) Explain why filling the gap with native shrubs could increase the survival of woodland species. [3]
Answer Details
(a) Native shrubs create a continuous corridor between habitat patches [1]; animals can move to find food, mates or shelter with less exposure to predators [1]; this increases gene flow/recolonisation and reduces isolation of populations [1].
Download The App On Google Playstore
Everything you need to excel in your exams
