Table 2. Open in new tab Effects of fire...

Sampling year	Response	Model	Predictor variables
2016	D. chamaeropis	Fire	**	–	***	** [T]	***	***
Distance	–	n.s.	*	** [T]	***	–
2016	M. pallidulus	Fire	n.s.	–	n.s.	***[T]	***	n.s.
Distance	–	n.s.	n.s.	**[T]	***	–
2016	Fruit set	Fire	n.s.	–	n.s.	n.s.	–	**[T]
Distance	–	n.s.	n.s.	n.s.	–	–
2017	D. chamaeropis	Fire	n.s.	–	*	*[X], [C]	***	*[T], [X], **[C]
Distance	–	***	n.s.	*[X], *[C]	***	–
2017	M. pallidulus	Fire	n.s.	–	**	n.s.	***	n.s.
Distance	–	n.s.	*	n.s.	***	–
2017	Fruit set	Fire	n.s.	–	n.s.	*[T], *[X]	–	***[X]
Distance	–	n.s.	n.s.	*[T],[X], [C]	–	–

Sampling year

Response

Model

Predictor variables

U. vs. B.

Distance

Inflorescences

Site

Plant sex

U. × Site vs. B. × Site.

2016

D. chamaeropis

Fire

–

***

** [T]

***

Distance

–

n.s.

** [T]

***

–

2016

M. pallidulus

Fire

n.s.

–

n.s.

***[T]

***

n.s.

Distance

–

n.s.

**[T]

***

–

2016

Fruit set

Fire

n.s.

–

n.s.

–

**[T]

Distance

–

n.s.

–

2017

D. chamaeropis

Fire

n.s.

–

***[X], **[C]

***

***[T], ***[X], ***[C]

Distance

–

***

n.s.

***[X], ***[C]

***

–

2017

M. pallidulus

Fire

n.s.

–

n.s.

***

n.s.

Distance

–

n.s.

***

–

2017

Fruit set

Fire

n.s.

–

n.s.

***[T], ***[X]

–

***[X]

Distance

–

n.s.

***[T],***[X], *[C]

–

Sampling year	Response	Model	Predictor variables
2016	D. chamaeropis	Fire	**	–	***	** [T]	***	***
Distance	–	n.s.	*	** [T]	***	–
2016	M. pallidulus	Fire	n.s.	–	n.s.	***[T]	***	n.s.
Distance	–	n.s.	n.s.	**[T]	***	–
2016	Fruit set	Fire	n.s.	–	n.s.	n.s.	–	**[T]
Distance	–	n.s.	n.s.	n.s.	–	–
2017	D. chamaeropis	Fire	n.s.	–	*	*[X], [C]	***	*[T], [X], **[C]
Distance	–	***	n.s.	*[X], *[C]	***	–
2017	M. pallidulus	Fire	n.s.	–	**	n.s.	***	n.s.
Distance	–	n.s.	*	n.s.	***	–
2017	Fruit set	Fire	n.s.	–	n.s.	*[T], *[X]	–	***[X]
Distance	–	n.s.	n.s.	*[T],[X], [C]	–	–

Table 2.

Open in new tab

Effects of fire (unburnt vs. burnt areas) and distance (to the fire edge) on the number of Derelomus chamaeropis weevils, Meligethinus pallidulus beetles and Chamaerops humilis fruit set; for each response variable, the table shows the results of the GLMs and GLMMs on the effects of fire or distance inside the fire

Sampling year	Response	Model	Predictor variables
			U. vs. B.	Distance	Inflorescences	Site	Plant sex	U. × Site vs. B. × Site.
2016	D. chamaeropis	Fire	**	–	***	** [T]	***	***
2016	D. chamaeropis	Distance	–	n.s.	*	** [T]	***	–
2016	M. pallidulus	Fire	n.s.	–	n.s.	***[T]	***	n.s.
2016	M. pallidulus	Distance	–	n.s.	n.s.	**[T]	***	–
2016	Fruit set	Fire	n.s.	–	n.s.	n.s.	–	**[T]
2016	Fruit set	Distance	–	n.s.	n.s.	n.s.	–	–
2017	D. chamaeropis	Fire	n.s.	–	*	*[X], [C]	***	*[T], [X], **[C]
2017	D. chamaeropis	Distance	–	***	n.s.	*[X], *[C]	***	–
2017	M. pallidulus	Fire	n.s.	–	**	n.s.	***	n.s.
2017	M. pallidulus	Distance	–	n.s.	*	n.s.	***	–
2017	Fruit set	Fire	n.s.	–	n.s.	*[T], *[X]	–	***[X]
2017	Fruit set	Distance	–	n.s.	n.s.	*[T],[X], [C]	–	–

Sampling year	Response	Model	Predictor variables
			U. vs. B.	Distance	Inflorescences	Site	Plant sex	U. × Site vs. B. × Site.
2016	D. chamaeropis	Fire	**	–	***	** [T]	***	***
2016	D. chamaeropis	Distance	–	n.s.	*	** [T]	***	–
2016	M. pallidulus	Fire	n.s.	–	n.s.	***[T]	***	n.s.
2016	M. pallidulus	Distance	–	n.s.	n.s.	**[T]	***	–
2016	Fruit set	Fire	n.s.	–	n.s.	n.s.	–	**[T]
2016	Fruit set	Distance	–	n.s.	n.s.	n.s.	–	–
2017	D. chamaeropis	Fire	n.s.	–	*	*[X], [C]	***	*[T], [X], **[C]
2017	D. chamaeropis	Distance	–	***	n.s.	*[X], *[C]	***	–
2017	M. pallidulus	Fire	n.s.	–	**	n.s.	***	n.s.
2017	M. pallidulus	Distance	–	n.s.	*	n.s.	***	–
2017	Fruit set	Fire	n.s.	–	n.s.	*[T], *[X]	–	***[X]
2017	Fruit set	Distance	–	n.s.	n.s.	*[T],[X], [C]	–	–

Full models for fire effects included the two-way interaction (‘×’) between fire treatment (U. vs. B. = unburnt vs. burnt) and study site. All models included the number of inflorescences, site and plant sex (only for models on D. chamaeropis and M. pallidulus abundances) as predictor variables. Names in square brackets represent the study site with statistically significant effects (T = Tivissa, X = Xàbia, C = Carcaixent). *P < 0.05, **P < 0.01, ***P < 0.001, n.s. = non-significant. For detailed statistics see Supplementary Data, Tables S2 (year 2016) and S3 (year 2017) and Table S4 for post-hoc pairwise comparisons of the interaction between fire treatment and study site.

This Feature Is Available To Subscribers Only