Seasonal Climate Impacts on Vocal Activity in Two Neotropical Nonpasserines
Round 1
Reviewer 1 Report
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Reviewer 2 Report
This manuscript aims to understand daily variation in vocal activity in two non-passerine species and how this relates to climatic factors. Quite a few studies have looked at social factors influencing vocal behavior especially mating behavior and fewer studies have addressed smaller scale variation that may be due to temperature, humidity or rainfall. Here, the authors examine the influence of daily minimum temperature, relative air humidity, and daily rainfall on the vocal activity of 2 non-passerines during both the dry and wet seasons.
Lines 90-91: It is not clear why there is expected to be a positive influence of temperature on vocal behavior in tropical species experiencing fairly small variation across the year. I think there needs to be a short explanation here to understand the reason behind this prediction.
Lines 150 on: It would help here to include information on how many individuals/territories the authors think they capture on the recordings. How far do the recorders pick up calls of interest and based on what is known about the territorial behavior, how many unique individuals/pairs/families do they capture in the recordings? This would help to have an idea on how many individuals the results are based on.
Lines 185-189: I do not understand here - all identified potential vocalizations for each species in all recordings were reviewed? This does not make sense because in the next paragraph the authors discuss how they evaluated the performance of the software at identifying correctly the vocalizations.
Line 199: here “recording” refers to a full 24 hour of recordings (15 min per hour during 24 hours), please specify as this is important in understanding the analysis.
Lines 254-255: What is the “recall rate” for the Chaco Chachalaca? If the recall rate for the tinamou is reported here, then so should be the other one.
Figure 1 - I think it would be more informative to present the data by month within the dry and wet seasons because there seems to be such large variation and most readers will probably want to know the shorter term variation within each season.
Line 266 - It seems like Figure 3 should also be cited here to include the reference to chachalaca vocal behavior.
Figures 2 & 3 - As they are presented, it is a bit hard to read and compare because there are different scales both for x-axis (climatic factors) and y-axis (call numbers) for the wet and dry season. The different symbols for the stations add another level, which I think can be omitted or put in a supplementary figure. I think it would be more helpful to combine the stations (use one symbol for all) and then also plot the wet and dry values on the same graph (different symbols/colors) so it is easier to compare. Also, please add minor tick marks to be easier for the reader.
Table 1 - The station, which is included as a covariate in the models, seems to be significant sometimes. Is this a result of variation in the number of calls recorded at each? If so, this should be mentioned in the results and maybe the discussion as well, it may be related to the social environment and not to the climatic conditions monitored.
Author Response
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