Adaptive wing asymmetry in males of the speckled wood butterfly (Pararge aegeria)?
نویسندگان
چکیده
منابع مشابه
Territorial Defence in the Speckled Wood Butterfly (pararge Aegeria) : the Resident Always Wins
Males competed for territories, spots of sunlight on the ground layer of woodland, which were the best places for finding females . At any one time only 60% of the males had territories ; the remainder patrolled for females up in the tree canopy . Males continually flew down from the canopy and rapidly took over vacant sunspots . However, if the sunspot was already occupied, then the intruder w...
متن کاملIntraspecific competition in the speckled wood butterfly Pararge aegeria: Effect of rearing density and gender on larval life history
In insects, the outcome of intraspecific competition for food during development depends primarily upon larval density and larval sex, but effects will also depend on the particular trait under consideration and the species under study. Experimental manipulations of larval densities of a Madeiran population of the speckled wood butterfly Pararge aegeria confirmed that intraspecific competition ...
متن کاملA Diversity of Conserved and Novel Ovarian MicroRNAs in the Speckled Wood (Pararge aegeria)
microRNAs (miRNAs) are important regulators of animal development and other processes, and impart robustness to living systems through post-transcriptional regulation of specific mRNA transcripts. It is postulated that newly emergent miRNAs are generally expressed at low levels and with spatiotemporally restricted expression domains, thus minimising effects of spurious targeting on animal trans...
متن کاملEvolutionary trade-offs between reproduction and dispersal in populations at expanding range boundaries.
During recent climate warming, some species have expanded their ranges northwards to keep track of climate changes. Evolutionary changes in dispersal have been demonstrated in these expanding populations and here we show that increased dispersal is associated with reduced investment in reproduction in populations of the speckled wood butterfly, Pararge aegeria. Evolutionary changes in flight ve...
متن کاملMating success of resident versus non-resident males in a territorial butterfly
Male-male competition over territorial ownership suggests that winning is associated with considerable benefits. In the speckled wood butterfly, Pararge aegeria, males fight over sunspot territories on the forest floor; winners gain sole residency of a sunspot, whereas losers patrol the forest in search of females. It is currently not known whether residents experience greater mating success th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 1999
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.1999.0795