Soil seed banks are short-lived and triggered by the first effective rainfalls in the vacant lots of Santiago, Chile

Figueroa, Javier; Saldías, María Gabriela; Lagos, Diego; Teillier, Sebastián; Castro, Sergio A.

doi:10.1016/j.ufug.2021.127418

Cited by 1 publication

(1 citation statement)

References 47 publications

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“…Secondly, neighborhoods at a lower socioeconomic level in Santiago de Chile present less tree cover and greater impervious surface [72,73], which commonly relate to greater abundance of the species [35]. Finally, unmanaged herbaceous vegetation is more frequent in areas at a lower socioeconomic level [74]; this type of vegetation, in combination with bare ground and impervious surfaces, would provide habitat conditions that contribute to the feeding efficiency of sparrows [75,76].…”

Section: Discussionmentioning

confidence: 99%

Abundance of Non-Native Birds in the City: Spatial Variation and Relationship with Socioeconomics in a South American City

Silva-Ortega,

Muñoz-Pacheco,

Villaseñor

2023

Animals

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Cities commonly support a high abundance of non-native species that can affect both wildlife and human health; however, their distribution across the urban environment and their relationship with socioeconomics are not well documented. Here, we map the abundance of three non-native birds in a Latin American city—domestic pigeon (Columba livia f. domestica), house sparrow (Passer domesticus), and monk parakeet (Myiopsitta monachus)—and investigate the effect of socioeconomics on their abundance. We found that C. livia f. domestica exhibited a random distribution of abundance across the city but reached its greatest abundance in low-income areas. P. domesticus exhibited an aggregated distribution of abundance, being most abundant in the southern and western areas of the city and in low-income areas. M. monachus exhibited an aggregated distribution of abundance, being most abundant in the northeastern part of the city and reaching its greatest abundance in high-income areas. Low-income areas likely provide high abundance of food, shelter, and nesting sites for both C. livia f. domestica and P. domesticus, whereas high income areas have greater tree cover and larger trees in which M. monachus can build communal nests. Our study finds that the abundance of non-native birds varies across the city and between socioeconomic groups; therefore, targeted management is needed in different city zones to limit negative effects on native species and prevent zoonotic diseases.

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