Philip Kohlmeier

Philip Kohlmeier
University of Groningen | RUG · Gelifes

PhD

About

30
Publications
2,982
Reads
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341
Citations
Additional affiliations
August 2018 - present
University of Groningen
Position
  • PostDoc Position
September 2014 - June 2018
Johannes Gutenberg-Universität Mainz
Position
  • PhD Student
Education
October 2012 - August 2014
October 2009 - July 2012
Bielefeld University
Field of study
  • Biology

Publications

Publications (30)
Chapter
Social interactions are generally regulated by pheromonesPheromones that convey information about the identity, physiological state, and location of an individual. The fruit fly, Drosophila melanogasterDrosophila melanogaster, offers a powerful model system to study the mechanisms through which pheromonesPheromones modulate social interactions. Mos...
Preprint
Full-text available
Being part of a group facilitates cooperation between group members, but also creates competition for limited resources. This conundrum is problematic for gravid females who benefit from being in a group, but whose future offspring may struggle for access to nutrition in larger groups. Females should thus modulate their reproductive output dependin...
Article
Full-text available
Females that are highly selective when choosing a mate run the risk of remaining unmated or delaying commencing reproduction. Therefore, low female choosiness would be beneficial when males are rare but it would be maladaptive if males become more frequent. How can females resolve this issue? Polyandry would allow mating-status-dependent choosiness...
Article
Full-text available
The ecological success of social insects is based on division of labour, not only between queens and workers, but also among workers. Whether a worker tends the brood or forages is influenced by age, fertility and nutritional status, with brood carers being younger, more fecund and more corpulent. Here, we experimentally disentangle behavioural spe...
Article
Full-text available
Author summary In social insects such as ants and bees, workers specialize in different tasks. This specialization is thought to be regulated via response thresholds to task-specific cues, which vary between workers conducting different tasks. Whether a worker takes care of the brood, cares for other workers, or leaves the nest to search for food i...
Data
“Frequency of foraging” was not influenced by short-term Vg-like A knockdown. Orange: control. Purple: Vg-like A knockdown. Vg, vitellogenin. (PDF)
Data
Foraging frequency in young brood carers did not change in response to 33 days of Vg-like A knockdown (GLMM: p = 0.79). Orange: control. Purple: Vg-like A knockdown. GLMM, generalized linear mixed model; Vg, vitellogenin. (PDF)
Data
NMDS plots of CHC profiles of brood carers and foragers and Vg-like A knockdown and control workers. (A) NMDS plot of the composition of CHC profile differed between brood carers (blue) and foragers (red). (B) A knockdown of Vg-like A (purple) did not result into alterations of CHC profiles compared to control workers (orange). CHC, cuticular hydro...
Data
Expression relative to GAPDH of all Vg and Vg-like genes found in Temnothorax. Orange: control. Purple: Vg-like A knockdown. Vg, vitellogenin. (TIF)
Data
Overview of different Vg and Vg-like copies per species. Numbers represent the numbers of gene copies per cluster found. Vg, vitellogenin. (PDF)
Data
Specificity of Vg-like A dsiRNA fragments. Alignment was performed using EMBL-EBIs Clustal Omega. Vg, vitellogenin. (PDF)
Data
Brood care in young brood carers was strongly reduced after 33 days of Vg-like A knockdown (GLMM: p < 0.0001). Orange: control. Purple: Vg-like A knockdown. GLMM, generalized linear mixed model; Vg, vitellogenin. (PDF)
Data
qPCR primer sequences. qPCR, quantitative real-time PCR. (PDF)
Data
“Frequency of inactivity” did not differ between control and Vg-like A− workers during short-term knockdown experiment. Inactivity was measured as the number of observations during which an individual was not showing any behavior. We then ran a GLMM including “frequency of inactivity” as a response variable; “treatment” (control, Vg-like A−), “cast...
Data
Phylogenetic tree of Vg and Vg-like orthologs with full species names. Vg, vitellogenin. (TIF)
Data
Phylogenetic tree of Vg and Vg-like with NCBI reference sequence ID system labels. Vg, vitellogenin. (SVG)
Data
Overview of fused protein sequences detected in previously published genome annotations. (PDF)
Data
dsiRNA sequences. Frequency of nucleotides: Vg-like A (median across all 3 fragments): A = 5; C = 6; G = 6; U = 8. Nonsense: A = 5; C = 6; G = 6; U = 8. dsiRNA; Dicer-substrate small interfering RNA; Vg, vitellogenin. (PDF)
Data
Overview of the behaviors and positions recorded during nest scans. Brood caring was defined as the number of observations during which a worker antennated, groomed, fed, or carried a brood item. Nestmate care was the sum of antennating, grooming, feeding, or carrying adult nestmate workers. Foraging was defined as the number of observations during...
Preprint
The ecological success of social insects is based on division of labour, not only between queens and workers, but also among workers. Whether a worker tends the brood or forages is strongly influenced by age, fertility and nutritional status, with brood carers being younger, more fecund and corpulent. Here, we experimentally disentangle behaviour f...
Article
Full-text available
1. Kin competition often reduces – and sometimes entirely negates – the benefits of cooperation among family members. Surprisingly, the impact of kin competition on the fitness effects of family life only received close scrutiny in studies on sibling rivalry, whereas the possibility of parent–offspring competition has attracted much less attention....
Article
Full-text available
According to classic life history theory, selection for longevity depends on age-dependant extrinsic mortality and fecundity. In social insects, the common life history trade-off between fecundity and longevity appears to be reversed, as the most fecund individual, the queen, often exceeds workers in lifespan several fold. But does fecundity direct...
Article
Full-text available
A major cost of group-living is its inherent risk of pathogen infection. To limit this risk, many group-living animals have developed the capability to prophylactically boost their immune system in the presence of group members and/or to mount collective defenses against pathogens. These two phenomena, called density dependent prophylaxis and socia...
Data
User-friendly interface of the program PO-CALC.
Article
Full-text available
Olfactory communication is widespread across the animal kingdom but until recently was believed to be unimportant in songbirds. However, recent studies of zebra finches, Taeniopygia guttata, have found that fledglings are capable of recognizing their own nest based on olfactory cues alone. This raises the important question of whether this knowledg...
Article
Full-text available
The ability to recognize close relatives in order to cooperate or to avoid inbreeding is widespread across all taxa. One accepted mechanism for kin recognition in birds is associative learning of visual or acoustic cues. However, how could individuals ever learn to recognize unfamiliar kin? Here, we provide the first evidence for a novel mechanism...

Questions

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Question
I want to do a ChIP assay on a whole organ (invertebrate). How can I find out how many cells are in this organ?

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