PIPE Function dplyr to sum all column values to the year column not worked

Question

I have a table with Year column from 1962 to 2010 and then Columns from Abraxas_grossulariata to Zeuzera_pyrina. I want to sum the rows for each year and to have one final value of the sum of this.

I tried the code:

TolnaSum <- Tolna %>% group_by(Year) %>% summarise(count=sum(c(Abraxas_grossulariata:Zeuzera_pyrina)))

This produced a table I wanted but has not summed it together correctly.