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accumulatedNectarConcentration #21
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The actual definition of The definition makes explicit when and how the nectar volume should be measured. Should we change it to make it more general? Maybe create a new term for nectar volume measurements (not the accumulated volume): Can the accumulated nectar be calculated from a set of |
Volume units missing? |
@zedomel I was confused by your statements ....I think they are mixing #accumlatedNectarConcentration with #accumlatedNectarVolume.... We can measure both (volume of nectar and concentration of sugar) during certain periods of the flower's lifetime and have, at the end, the measurement considering the entire period of the flower's life. For me the definition of accumlatedNectarConcentration #21 está correta. |
Sorry @carmensspires I posted the comment in the wrong issue :-( But my question also applies here. The And what about repeatedly time measurements (not accumulated)? It looks very common in the literature people taking measurements of nectar volume and nectar concentration periodically (e.g. hourly, daily). We don't have a term for those measurements (we only have for accumulated nectar). So my questions are:
Following the options 1) and 2), after standardization, we should have something like:
The measurements
So, if this kind of measurements are common, why are we fixing the accumulated nectar concentration measurement to be taken only at the end of a flower lifespan. The definition looks for me more a definition of a protocol than a definition of a measurement. Then, I'm suggesting to change the term definition to something like:
This definition will comprises measurements in any period of a flower lifespan (not only at its end), also, it is not making any assumption about the number of visitations that the flower received, which makes term useful when the flower is exposed to visitors and measurements of nectar production are being made. However, looking at the values published in the literature, we can find many studies that just publish the average (and possible the standard deviation) of the nectar concentration, what makes impossible to link measurements to particular flowers of a individual. Since, in those cases we only have a measurement of nectar concentration for multiple flowers of multiple individuals (mean + std dev), how could we link that data to a In my opinion, we have to define if the measurement are reported flower-based (one measurement of each flower) or individual-based (one measurement of each individual), possibly comprises multiple flowers, which give us an average value (not so good 👎 )... or sample-based (one measurement of multiple flowers of multiple individuals), also an average value (not much informative if we don't have variances of that values). |
@zedomel Nectar is extremely variable, even among flowers of the same plant individual. We now have two groups of terms for nectar: accumulated nectar - accumulated nectar and standing crop;
Accumulated nectar and standing crop are not comparable, they measure distinct processes. For accumulated nectar, the important information is the amount of time one has let nectar accumulate AND how long flowers live (Flower longevity). This because one thing is to measure accumulated nectar after 6h in a flower that lives 6 hours (i.e. all nectar a flower can produce in its entire life) and another is to measure nectar after 6h in a flower that lives 72 hours (this flower may still produce a lot of nectar). Therefore, they are not exactly comparable. My proposal actually is to add a term to make accumulated nectar comparable across species - a term to specify the amount of time that nectar has accumulated (values would be hours in integer). |
@pjbergamo I got it. Thanks. So, we have to create a new term related to Let me think little bit about it. Maybe this is the case to create class |
In this case @zedomel, it would be important that it was also possible to specify whether the nectar accumulation time was exactly at the end of a flower lifespan, as this is a common standardization. Would adding a new term 'accumulatedNectarTime' also allow us to specify this information with an integer value (hours) of time? This reasoning should be applied to the volume and concentration of the accumulated nectar. |
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