Life-history theories of senescence are based on the existence of a trade-off in resource allocation between body maintenance and reproduction. This putative trade-off means that environmental and demographic factors affecting the costs of reproduction should be associated with changes in patterns of senescence. In many species, competition among males is a major component of male reproductive investment, and hence variation in the sex ratio is expected to affect rates of senescence. We test this prediction using nine years of demographic and behavioural data from a wild population of the annual field cricket Gryllus campestris.
We monitored a population of wild field crickets (G. campestris) in a meadow in northern Spain for 11 consecutive years (2006–2017). We are still processing the video from 2014 and 2017, and in 2006 we did not record temperature data so those years are not used in the present analysis. The meadow is managed in a similar way every year (for details of management and our monitoring regime, see [12,13]). By mid to late April, usually before the adults start to emerge, we install up to 133 infrared day/night cameras that record the activity around each burrow entrance continuously.
The current set contains data on: date of birth, data of death, and lifetime recaptures in a wild population of the field cricket Gryllus campestris with sex and population sex ratio as covariates and on: male calling activity with age for a wild population of Gryllus campestris with sex ratio as a covariate.
|Datum van beschikbaarheid||8-mrt-2019|
|Uitgever||University of Groningen|
|Tijdelijke dekking||2006 - 2017|
|Datum van data-aanmaak||2006 - 2017|