Even though backyards are apparently too small to be biologically significant, when they are added together they reach areas of considerable size, which are often bigger than areas occupied by squares and urban parks ; ; ; .
Aunque los patios sean aparentemente demasiado diminutos para que resulten biológicamente significativos, cuando sumados alcanzan áreas de dimensiones considerables, y frecuentemente superiores al área ocupada por plazas y parques urbanos ; ; ; .