35 research outputs found

    Attack counts

    No full text
    ReadMe details for “Bolnick_data.csv” for Bolnick et al. Biology Letters 2016 The file Bolnick_data.csv is a comma-delimited ..csv text file. This file contains columns necessary to recreate analyses presented in the Biology Letters paper. The data in this table is a synthesis of a raw data file containing the exact time of each interaction, obtained from the original videos that are available upon request from the author (large files). Each column is distinct information regarding individual fish (rows). These columns are: A) Lake: Blackwater Lake or Gosling Lake B) Fish: an ID number corresponding to the camera used to uniquely video tape each interaction C) Model_color: Red, Blue, or Control_object (a cylinder the same size as our models) D) depth: Resident males’ nest depth (cm) E) N_bites: Number of bites directed at the model over a 1 hour video F) N_inspects: Number of inspections of the model (focal fish approaching the model to within one body length while facing the model) G) Aggressive_interactions: Sum of bites and inspections H) Date: date of experiment I) Mean.interval.between.bites: the mean duration of time between successive bites. Not calculated for Blackwater Lake because too few fish conducted more than 2 bites. Measured in seconds. J) Median.interval.between.bites: the median duration of time between successive bites. Not calculated for Blackwater Lake because too few fish conducted more than 2 bites. Measured in seconds. K) SD.interval: the standard deviation of the duration of time between successive bites. Not calculated for Blackwater Lake because too few fish conducted more than 2 bites. Measured in seconds

    Data from: Intruder colour and light environment jointly determine how nesting male stickleback respond to simulated territorial intrusions

    No full text
    AbstractVariation in male nuptial colour signals might be maintained by negative frequency-dependent selection. This can occur if males are more aggressive towards rivals with locally common colour phenotypes. To test this hypothesis, we introduced red or melanic three-dimensional printed-model males into the territories of nesting male stickleback from two optically distinct lakes with different coloured residents. Red-throated models were attacked more in the population with red males, while melanic models were attacked more in the melanic male lake. Aggression against red versus melanic models also varied across a depth gradient within each lake, implying that the local light environment also modulated the strength of negative frequency dependence acting on male nuptial colour.Usage notesAttack countsReadMe details for “Bolnick_data.csv” for Bolnick et al. Biology Letters 2016 The file Bolnick_data.csv is a comma-delimited ..csv text file. This file contains columns necessary to recreate analyses presented in the Biology Letters paper. The data in this table is a synthesis of a raw data file containing the exact time of each interaction, obtained from the original videos that are available upon request from the author (large files). Each column is distinct information regarding individual fish (rows). These columns are: A) Lake: Blackwater Lake or Gosling Lake B) Fish: an ID number corresponding to the camera used to uniquely video tape each interaction C) Model_color: Red, Blue, or Control_object (a cylinder the same size as our models) D) depth: Resident males’ nest depth (cm) E) N_bites: Number of bites directed at the model over a 1 hour video F) N_inspects: Number of inspections of the model (focal fish approaching the model to within one body length while facing the model) G) Aggressive_interactions: Sum of bites and inspections H) Date: date of experiment I) Mean.interval.between.bites: the mean duration of time between successive bites. Not calculated for Blackwater Lake because too few fish conducted more than 2 bites. Measured in seconds. J) Median.interval.between.bites: the median duration of time between successive bites. Not calculated for Blackwater Lake because too few fish conducted more than 2 bites. Measured in seconds. K) SD.interval: the standard deviation of the duration of time between successive bites. Not calculated for Blackwater Lake because too few fish conducted more than 2 bites. Measured in seconds.Bolnick_data.csv</div

    Involvement, Prosperity, and Economic Growth?

    No full text
    macroeconomics, Involvement, Prosperity, Economic Growth

    Data from: Trophoblast survival signaling during human placentation requires HSP70 activation of MMP2-mediated HBEGF shedding

    No full text
    Survival of trophoblast cells in the low oxygen environment of human placentation requires metalloproteinase-mediated shedding of HBEGF and downstream signaling. A matrix metalloproteinase (MMP) antibody array and quantitative RT-PCR revealed upregulation of MMP2 post-transcriptionally in human first trimester HTR-8/SVneo trophoblast cells and placental villous explants exposed to 2% O2. Specific MMP inhibitors established the requirement for MMP2 in HBEGF shedding and upregulation. Because α-amanitin inhibited the upregulation of HBEGF, differentially expressed genes were identified by next-generation sequencing of RNA from trophoblast cells cultured at 2% O2 for 0, 1, 2 and 4 h. Nine genes, all containing HIF-response elements, were upregulated at 1 h, but only HSPA6 (HSP70B’) remained elevated at 2–4 h. The HSP70 chaperone inhibitor VER 155008 blocked upregulation of both MMP2 and HBEGF at 2% O2, and increased apoptosis. However, both HBEGF upregulation and apoptosis were rescued by exogenous MMP2. Proximity ligation assays demonstrated interactions between HSP70 and MMP2, and between MMP2 and HBEGF, supporting the concept that MMP2-mediated shedding of HBEGF, initiated by HSP70, contributes to trophoblast survival at the low O2 concentrations encountered during the first trimester, and is essential for successful pregnancy outcomes. Trophoblast survival during human placentation, when oxygenation is minimal, required HSP70 activity, which mediated MMP2 accumulation and the transactivation of anti-apoptotic ERBB signaling by HBEGF shedding

    'Leaves and Eats Shoots': Direct Terrestrial Feeding Can Supplement Invasive Red Swamp Crayfish in Times of Need

    No full text
    PMCID: PMC3411828This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
    corecore