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AUTHOR

Joachim Falk

showing 3 related works from this author

Sibling cooperation in earwig families provides insights into the early evolution of social life.

2014

The evolutionary transition from solitary to social life is driven by direct and indirect fitness benefits of social interactions. Understanding the conditions promoting the early evolution of social life therefore requires identification of these benefits in nonderived social systems, such as animal families where offspring are mobile and able to disperse and will survive independently. Family life is well known to provide benefits to offspring through parental care, but research on sibling interactions generally focused on fitness costs to offspring due to competitive behaviors. Here we show experimentally that sibling interactions also reflect cooperative behaviors in the form of food sh…

MaleNymphSibling rivalry (animals)InsectaOffspring[SDV]Life Sciences [q-bio]Developmental psychologyForficula auriculariaCoprophagiaAnimalsSiblingSocial BehaviorComputingMilieux_MISCELLANEOUSEcology Evolution Behavior and SystematicsbiologyEcology[SDV.BA]Life Sciences [q-bio]/Animal biologydigestive oral and skin physiologybiology.organism_classificationBiological EvolutionFamily life[SDV.BA.ZI]Life Sciences [q-bio]/Animal biology/Invertebrate ZoologySocial systemEarwigFemalePaternal careThe American naturalist
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Inflexible versus flexible: the influence of temperature and photoperiod on pre- and post-eyespot development time in Libellulidae (Odonata)

2016

Temperature and photoperiod are important environmental parameters for organisms. The present study tests the hypothesis that, during embryogenesis, temperature and photoperiod influence pre- and post-eyespot development time in dragonflies of the family Libellulidae differently. Eggs are used from eight species (five different genera, from Africa/Europe, and lentic/lotic habitat preferences). The eggs are reared under different constant or fluctuating temperature and light conditions. There are no general species-specific degree-days for pre- or the post-eyespot development in these species. In all study species, the variance within and between the treatments of the duration in days and th…

0106 biological sciencesphotoperiodismbiologyPhysiologyEcologyHatchingmedia_common.quotation_subjectInsectOdonatabiology.organism_classification010603 evolutionary biology01 natural sciences010602 entomologyHabitatInsect ScienceEyespotPre and postEcology Evolution Behavior and SystematicsLibellulidaemedia_commonPhysiological Entomology
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Data from: Sibling cooperation in earwig families provides insights into the early evolution of social life

2013

The evolutionary transition from solitary to social life is driven by direct and indirect fitness benefits of social interactions. Understanding the conditions promoting the early evolution of social life therefore requires identification of these benefits in nonderived social systems, such as animal families where offspring are mobile and able to disperse and will survive independently. Family life is well known to provide benefits to offspring through parental care, but research on sibling interactions generally focused on fitness costs to offspring due to competitive behaviors. Here we show experimentally that sibling interactions also reflect cooperative behaviors in the form of food sh…

medicine and health caredigestive oral and skin physiologyMedicineSibling cooperationForficula auriculariaLife sciences
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