Urban sprawl facilitates invasions of exotic plants across multiple spatial scales
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Urban sprawl facilitates invasions of exotic plants across multiple spatial scales. / Boscutti, Francesco; Lami, Francesco; Pellegrini, Elisa; Buccheri, Massimo; Busato, Francesco; Martini, Fabrizio; Sibella, Rossella; Sigura, Maurizia; Marini, Lorenzo.
In: Biological Invasions, Vol. 24, No. 5, 2022, p. 1497-1510.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Urban sprawl facilitates invasions of exotic plants across multiple spatial scales
AU - Boscutti, Francesco
AU - Lami, Francesco
AU - Pellegrini, Elisa
AU - Buccheri, Massimo
AU - Busato, Francesco
AU - Martini, Fabrizio
AU - Sibella, Rossella
AU - Sigura, Maurizia
AU - Marini, Lorenzo
N1 - Publisher Copyright: © 2022, The Author(s).
PY - 2022
Y1 - 2022
N2 - Exotic plant invasions are considered one of the major threats to biodiversity causing important impacts at the population, community, and ecosystem levels. Understanding the drivers of plant invasions across multiple spatial and temporal scales often requires a landscape approach. The effect of landscape composition on biological invasion has been extensively studied, whereas landscape configuration effects were seldom considered or the analyses were limited to single species. Here, we aimed to analyze how the expansion of urban and agricultural areas can affect exotic species richness (both neophytes and archaeophytes) at three spatial scales, namely regional (scale: 37.5 km2), landscape (scale: 7.1 km2) and local (scale: 100 m2). We considered the possible contribution of urban and agricultural areas both in terms of composition (i.e. habitat cover) and configuration (i.e. shape complexity of patches). First, we found that increasing urbanization coupled with high shape complexity of urban elements were major drivers of both neophyte and archaeophyte invasions across heterogeneous landscapes. In particular, shape complexity seemed to be a key driver of plant invasions at large spatial scale, whereas the type of recipient habitat and urban cover determined the exotic success at the patch level. Second, archaeophytes were also affected by agriculture land use, i.e. agricultural patches shape complexity increased their spread at both regional and landscape scales. High shape complexity of highly disturbed habitats is expected to increase the exchange surface that exotic plant use to spread their propagules across the landscape mosaics. Our findings suggest that urban planning aimed at curbing urban fragmentation by both reducing shape complexity and diffuse urban sprawl might greatly improve the resistance of landscapes to biological invasions.
AB - Exotic plant invasions are considered one of the major threats to biodiversity causing important impacts at the population, community, and ecosystem levels. Understanding the drivers of plant invasions across multiple spatial and temporal scales often requires a landscape approach. The effect of landscape composition on biological invasion has been extensively studied, whereas landscape configuration effects were seldom considered or the analyses were limited to single species. Here, we aimed to analyze how the expansion of urban and agricultural areas can affect exotic species richness (both neophytes and archaeophytes) at three spatial scales, namely regional (scale: 37.5 km2), landscape (scale: 7.1 km2) and local (scale: 100 m2). We considered the possible contribution of urban and agricultural areas both in terms of composition (i.e. habitat cover) and configuration (i.e. shape complexity of patches). First, we found that increasing urbanization coupled with high shape complexity of urban elements were major drivers of both neophyte and archaeophyte invasions across heterogeneous landscapes. In particular, shape complexity seemed to be a key driver of plant invasions at large spatial scale, whereas the type of recipient habitat and urban cover determined the exotic success at the patch level. Second, archaeophytes were also affected by agriculture land use, i.e. agricultural patches shape complexity increased their spread at both regional and landscape scales. High shape complexity of highly disturbed habitats is expected to increase the exchange surface that exotic plant use to spread their propagules across the landscape mosaics. Our findings suggest that urban planning aimed at curbing urban fragmentation by both reducing shape complexity and diffuse urban sprawl might greatly improve the resistance of landscapes to biological invasions.
KW - Alien plants
KW - Fragmentation
KW - Landscape configuration
KW - Urbanization
U2 - 10.1007/s10530-022-02733-6
DO - 10.1007/s10530-022-02733-6
M3 - Journal article
AN - SCOPUS:85124181888
VL - 24
SP - 1497
EP - 1510
JO - Biological Invasions
JF - Biological Invasions
SN - 1387-3547
IS - 5
ER -
ID: 297053967