J 2021

Contrasting Impacts of Cultivated Exotics on the Functional Diversity of Domestic Gardens in Three Regions with Different Aridity

PADULLES CUBINO, Josep, Dorothy BOROWY, Sonja KNAPP, Zdeňka LOSOSOVÁ, Carlo RICOTTA et. al.

Basic information

Original name

Contrasting Impacts of Cultivated Exotics on the Functional Diversity of Domestic Gardens in Three Regions with Different Aridity

Authors

PADULLES CUBINO, Josep (724 Spain, guarantor, belonging to the institution), Dorothy BOROWY (840 United States of America), Sonja KNAPP, Zdeňka LOSOSOVÁ (203 Czech Republic, belonging to the institution), Carlo RICOTTA, Stefan SIEBERT, Jeannine CAVENDER-BARES, Daniel SOL, Alienor JELIAZKOV and Christopher SWAN

Edition

Ecosystems, New York, Springer US, 2021, 1432-9840

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.345

RIV identification code

RIV/00216224:14310/21:00120921

Organization unit

Faculty of Science

UT WoS

000570840200003

Keywords in English

Climate change; Horticulture; Human preferences; Introduced species; Plant traits; Urban ecosystems; Urbanization

Tags

Tags

International impact, Reviewed
Změněno: 11/11/2021 13:48, Mgr. Marie Šípková, DiS.

Abstract

V originále

Cultivated exotic plants are often introduced for their aesthetic value and today comprise a substantial fraction of the flora of urban domestic gardens. Yet, their relative contribution to the functional diversity of domestic gardens and how it changes across different climate zones is insufficiently understood. Here, we investigated whether the effects of cultivated exotics on functional diversity of three plant traits related to plant aesthetics (that is, plant showiness, plant height, and leaf area) varied in suburban domestic gardens in three regions (Minnesota, USA; Alt Emporda, Spain; and central South Africa) that differ in aridity. For each garden, we calculated the mean and variance of each plant trait considering all co-occurring species and also splitting them into co-occurring cultivated exotics and natives. Our results revealed that mean plant showiness increased linearly with the proportion of cultivated exotics both across and within studied regions. Moreover, co-occurring cultivated exotics were, on average, showier than natives in all regions, but differences in their trait variances were context-dependent. The interaction between cultivated exotics and aridity explained variation in mean plant height and leaf area better than either predictor alone, with the effect of cultivated exotics being stronger in more arid regions. Accordingly, co-occurring cultivated exotics were taller and had larger leaves than natives in warmer and drier regions, while the opposite was true in cooler and wetter regions. Our study highlights the need to consider the combined effects of exotic species and climate in future studies of urban ecology.