Journal
MYRMECOLOGICAL NEWS
Volume 32, Issue -, Pages 23-40Publisher
OESTERREICHISCHE GESELL ENTOMOFAUNISTIK, C/O NATURHISTOR MUSEUM WIEN
DOI: 10.25849/myrmecol.news_032:023
Keywords
Formica; narrow-headed ant; monogyny; dispersal; inbreeding; mating frequency; sex-ratio evolution; long-term study; review
Categories
Funding
- Academy of Finland [135970, 121216, 206505, 251337, 252411, 284666]
- Academy of Finland (AKA) [121216, 206505, 121216, 206505] Funding Source: Academy of Finland (AKA)
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This study summarizes a 28-year research on monogyne colonies of the narrow-headed ant and discusses the ecological and genetic consequences arising from fragmented landscapes and conflicting selection pressures.
With their sedentary colonies, long-lived ant colonies lend themselves to long-term studies where fitness effects of life-history traits can be investigated in the wild, a task that is challenging in any organism and particularly rarely feasible in insects. Here, we summarize and examine the insights we have gained from a 28-year study on monogyne colonies of the narrow-headed ant Formica exsecta NYLANDER, 1846, and discuss the ecological and genetic repercussions that emanate from ecological realities and conflicting selection pressures in a fragmented landscape matrix. These entail the effects of habitat structuration on genetic diversity, the effects of reduced genetic diversity on the fitness of individuals and colonies, and the impact of the opposing selection pressures on short-versus long-range dispersal.
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