semelparous


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semelparous

A near-obsolete term for reproducing once in a lifetime.
References in periodicals archive ?
Post-reproductive Misumena thus perform very much like semelparous forms, exhibiting few characteristics that would attain high fitness values if employed earlier in life.
Facultative second oviposition as an adaptation to egg loss in a semelparous crab spider.
These and previous data provide the groundwork for more studies that may reveal patterns regarding semelparous life-history strategies in vertebrates that inhabit environmentally extreme areas of the world, and provide insight into the role of semelparity in evolution of tetrapods.
Fitness trade-offs select for semelparous reproduction in an extreme environment.
It is important to remember that in this discussion that we are discussing daily mortality rates that last only a few days or weeks of the life of a semelparous animal; hence the rates are very high and resemble the typical daily mortality rates of small pelagic fish eggs (Alheit, 1993) that also exist for short periods.
variabilis is semelparous, a similar pattern should be detectable from the reproductive staging data.
In particular, if a majority of the recruits in a population with a prolonged recruitment period are derived from itself, and not from other populations, the individuals may be semelparous and the population may spawn asynchronously, or, the individuals may be iteroparous and spawn multiple times.
Rapid selection effects in a short-lived semelparous squid species exposed to exploitation: Inferences from the optimization of the life-history functions.
irradians is not a semelparous species (one-time reproduction) but rather an example of interrupted iteroparity (repeated reproduction) caused by losses in its genome.
variabilis population, although he believed the majority of individuals were semelparous.
Reliance on muscle and mantle proteins is particularly pronounced in the semelparous A.
Life histories thus changed from slower growth, and delayed and semelparous reproduction at the exposed location to rapid growth, and earlier and iteroparous reproduction at the subtidal, estuarine oyster reel When oysters were added to cages at the exposed location (where they are rare), oyster drill growth and reproductive rates increased dramatically.