Table 2. Relationship between flying fox and bird damage under the different flying fox deterrent methods.

Partial Spearman rank correlation between the proportion of flying fox and bird damage, controlling for estimated fruit yield per tree, across deterrent methods and sites. Mango orchards are denoted by (m) and lychee orchards by (l). The number of trees (n), correlation coefficient (ρ), and p-values are reported. Statistically significant relationships are indicated in bold. The netted structure was not included because it was designed to exclude both flying foxes and birds.

Deterrent method Site	n	Correlation coefficient (ρ)	p-value
Sound-light system
Bras d’Eau (m)	9	<0.01
Calebasses (l)	20	0.64	<0.01
Odour-based repellents and flags
Beaux Songes (l)	24	0.38	0.08
Calebasses (l)	32	0.83	<0.01
Constance (l)	35	0.76	<0.01
Smoke and light
Calebasses (l)	7	−0.27	0.61
Sprinkler system
Morcellement St. André (l)	7	0.45	0.37
Parallel cords
Amitié (l)	10	0.12	0.77