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Title of Journal: Behav Ecol Sociobiol

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Abbravation: Behavioral Ecology and Sociobiology

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Springer Berlin Heidelberg

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DOI

10.1002/lipi.19410480514

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1432-0762

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A good day to die bridging the gap between costs

Authors: Ashlee N Smith J Curtis Creighton Mark C Belk
Publish Date: 2016/05/16
Volume: 70, Issue: 8, Pages: 1397-1401
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Abstract

In species that provide parental care offspring survival is often completely dependent on protection and resources afforded by the parents Therefore parents gain no fitness unless they raise offspring to a critical point of independence In these species selection should shape parental life history to increase their chances of surviving to this critical point We test this hypothesis using females of two species of burying beetles Nicrophorus orbicollis and N marginatus Burying beetles breed on small vertebrate carcasses and reproduction can be divided into two stages carcass preparation and larva provisioning Females were allowed to reproduce repeatedly until they died and the stage in which each female died was recorded Most females died while waiting for another carcass for their next reproductive bout or during carcass preparation which indicates that females may have a physiological mechanism that allows them to delay death until their final brood is independent of parental careIn this paper we show that female burying beetles of two species do not die at random times during reproduction but instead die after they have finished caring for their offspring This is the first time that nonrandom death has been shown in burying beetles We show that females that die after offspring care is complete have a higher fitness than females that die at random because offspring in many species of burying beetles depend on parental care for food provisioning and protection We also propose a hormonal mechanism through which females might extend their lives to allow them to finish caring for their offspringThis research was funded by a graduate research grant from Purdue University Calumet and a Graduate Research Fellowship from Brigham Young University We thank Amy Shoup for her assistance with this project and Jane and Stefan Shoup for allowing us to collect beetles on their property


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  2. Honeybees use a Lévy flight search strategy and odour-mediated anemotaxis to relocate food sources
  3. Evolution of the fast start response in the cavefish Astyanax mexicanus
  4. Female oxidative status, egg antioxidant protection and eggshell pigmentation: a supplemental feeding experiment in great tits
  5. Secondary sex ratios do not support maternal manipulation: extensive data from laboratory colonies of spiny mice (Muridae: Acomys )
  6. Wildlife contact analysis: emerging methods, questions, and challenges
  7. Prior experience with eggs laid by non-nestmate queens induces egg acceptance errors in ant workers
  8. Ecological and hormonal correlates of antipredator behavior in adult Belding’s ground squirrels ( Spermophilus beldingi )
  9. Male spottail darters ( Etheostoma squamiceps ) do not use chemical or positional cues to discriminate between sired and foster eggs
  10. Parentally biased favouritism in relation to offspring sex in zebra finches
  11. Feeding and aggressive behaviours in juvenile coho salmon ( Oncorhynchus kisutch ) under chemically-mediated risk of predation
  12. Experimentally elevated plasma levels of testosterone do not increase male reproductive success in blue tits
  13. Strategic exploitation in a socially parasitic bee: a benefit in waiting?
  14. Underwater and above-water search patterns of an Arctic seabird: reduced searching at small spatiotemporal scales
  15. Reproductive trade-offs from mating with a successful male: the case of the tephritid fly Anastrepha obliqua
  16. Heavier birds react faster to predators: individual differences in the detection of stalking and ambush predators
  17. Bright moonlight triggers natal dispersal departures
  18. Does leadership indicate male quality in Neoconocephalus katydids?
  19. Sexual selection favours small and symmetric males in the polygynous greater sac-winged bat Saccopteryx bilineata (Emballonuridae, Chiroptera)
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  23. Exaggerated orientation scatter of nocturnal passerine migrants close to breeding grounds: comparisons between seasons and latitudes
  24. Love bites: male fang use during coercive mating in wolf spiders
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  26. Sex differences in the movement patterns of free-ranging chimpanzees ( Pan troglodytes schweinfurthii ): foraging and border checking
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  38. A field test of the Hamilton–Zuk hypothesis in the Trinidadian guppy ( Poecilia reticulata )
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  45. Guppies as heterospecific facilitators: a precursor of exploratory behavior?

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