Herbivorous dietary selection shown by hawfinch (Coccothraustes coccothraustes) within mixed woodland habitats.

ABSTRACT: Knowledge of diet and dietary selectivity is vital, especially for the conservation of declining species. Accurately obtaining this information, however, is difficult, especially if the study species feeds on a wide range of food items within heterogeneous and inaccessible environments, such as the tree canopy. Hawfinches (Coccothraustes coccothraustes), like many woodland birds, are declining for reasons that are unclear. We investigated the possible role that dietary selection may have in these declines in the UK. Here, we used a combination of high-throughput sequencing of 261 hawfinch faecal samples assessed against tree occurrence data from quadrats sampled in three hawfinch population strongholds in the UK to test for evidence of selective foraging. This revealed that hawfinch

SUBMITTER: Stenhouse EH 

PROVIDER: S-EPMC10170347 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature