Large-Scale Monitoring of Bird Communities along an Altitudinal Gradient in Two Central High Atlas Valleys

Table 3

Independent samples t-test comparison between avian assemblages of the studied valleys.

Features	Oued Ahançal	Aït Bouguemmaz	T value	value
Diversity
Number of species	112	100	2.287	0.062
Number of families	41	36	0.333	0.750
Number of orders	18	16	0.187	0.858
Abundance	13943	5973	3.428	0.014
Conservation status
Number of species	3	3	0.447	0.670
Phenological status
Resident breeders	63	61	2.931	0.026
Breeding migrants	28	30	0.000	1.000
Passage migrants	28	18	1.490	0.187
Winter visitors	41	28	1.905	0.105
Diversity index
Shannon_H	3.365	3.077	1.481	0.189
Equitability_J	0.713	0.668	0.657	0.536