Production of Excirolana armata (Dana, 1853) (Isopoda, Cirolanidae) on an exposed sandy beach in southeastern Brazil

Table 2 Life span (LS: years), turnover rate (P _s/B ratio: year⁻¹), and instantaneous rate of mortality (Z: year⁻¹) estimated for males (M), females (F) and populations of Excirolana armata (Souza 1998; Lozoya and Defeo 2006; Lercari et al. 2010; this study) and E. braziliensis (Zuñiga et al. 1985; Fonseca et al. 2000; Veloso et al. 2003; Defeo and Martínez 2003; Caetano et al. 2006; Lercari et al. 2010)

Species	LS		P _s/B		Z		Latitude	Source
Species	M	F	M	F	M	F	Latitude	Source
E. armata ^a	0.78	0.99	4.02	3.10	5.53	4.90	24°27′S	This study (first year)
E. armata ^a	0.79	0.88	3.19	3.10	6.43	7.36	24°27′S	This study (second year)
E. armata ^a	1.20	1.90	1.64	2.13	3.23	3.42	25°20′S	Souza (1998)
E. armata ^b	2.15		2.39		2.23		33°40′S	Lozoya and Defeo (2006), Lercari et al. (2010)
E. armata	2.20	2.40			1.95	1.50	33°50′S	Lozoya and Defeo (2006)
E. armata	2.10	1.90			1.85	1.65	33°50′S	Lozoya and Defeo (2006)
E. braziliensis ^a,b	1.66		1.62		2.95		23°02′S	Fonseca et al. (2000), Veloso et al. (2003)
E. braziliensis ^a,b	1.66		1.78		2.74		23°02′S	Fonseca et al. (2000), Veloso et al. (2003)
E. braziliensis ^a	1.72	1.45	1.50	2.00	2.82	4.06	23°03′S	Caetano et al. (2006)
E. braziliensis ^a	1.91	1.40	2.92	1.62	2.20	3.22	23°03′S	Caetano et al. (2006)
E. braziliensis ^a,b	1.25		3.62		3.00^c		23°27′S	Zuñiga et al. (1985)
E. braziliensis ^b	2.30		0.95		0.90		33°40′S	Defeo and Martínez (2003), Lercari et al. (2010)
E. braziliensis ^b	2.15		3.78		2.97		34°36′S	Defeo and Martínez (2003), Lercari et al. (2010)

ISSN: 1438-3888