Conversely, the iteroparous
genotype must divide its physiological resources between reproduction, somatic growth, and maintenance; hence, this genotype has some probability of surviving to reproduce again (Young 1981).
Reproduction: Indian python is sexually iteroparous
This species is considered an iteroparous
species, cataloged until now as having gonochoric species (Erisman et al., 2008); it forms reproductive aggregations from March to June, depending on location (Aburto-Oropeza et al., 2008).
Since the 1970s, most kelts have been released to the estuary after they spawn in a hatchery, and the iteroparous
share of the run has declined to <1%.
Amblypygids are long-lived (perhaps 7-10 years), iteroparous
, and produce 10-90 eggs per clutch (Fig.
Adaptive adjustment of offspring sex ratio and maternal reproductive effort in an iteroparous
Such species may possess an iteroparous
life history which means that individuals in several age classes of the population are fertile, or they may possess a semelparous life history which is characterized by the property that only individuals of the last age class are fertile.
Longevity, however, may strongly affect individual fitness especially in iteroparous
, long-lived species due to positive correlations with reproductive output (Newton 1989, Stearns 1989, Zera & Harshman 2001).
marginatus is an iteroparous
, gonochoristic, monomorphic, oviparous species with external fecundation.
Indeed, if [f.sub.i] > 0 for all i [less than or equal to] n, we say that the species has an iteroparous
life history and matrix A is classified as a nonnegative and primitive matrix.
Alternatively, reproductive females of iteroparous
amphibians may skip current opposition and invest more effort into future reproduction when the quality of aquatic habitats is unsuitable for offspring surPval (i.e., facultative breeding; Church et al., 2007).