This is the 10910th most frequent Spanish word.
detectarla
"Detectarla" means "to detect it" in English.
In this sentence, 'detectarla' is used in a technical sense to mean identifying and locating a signal.
Si hay una señal débil, podremos detectarla usando un mejor receptor.
If there's a weak signal, we can detect it using a better receiver.
Here, 'detectarla' refers to uncovering or realizing the hidden truth.
La verdad está oculta, y solo un ojo atento podrá detectarla.
The truth is hidden, and only a keen eye will be able to detect it.
In this context, 'detectarla' pertains to recognizing and observing biodiversity changes caused by climate.