10.5061/DRYAD.DFN2Z34ZV
Whitworth-Hulse, Juan Ignacio
0000-0001-6454-5227
National University of San Luis
Magliano, Patricio N.
National University of San Luis
Zeballos, Sebastián R.
National University of Córdoba
Aguiar, Sebastián
University of Buenos Aires
Baldi, Germán
National University of San Luis
Global patterns of rainfall partitioning by invasive woody plants
Dryad
dataset
2020
FOS: Biological sciences
ecohydrology
stemflow
woody plants
Consejo Nacional de Investigaciones Científicas y Técnicas
https://ror.org/03cqe8w59
2021-10-12T00:00:00Z
2021-10-12T00:00:00Z
en
963897 bytes
4
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Aim: Invasive species have the potential to alter hydrological processes
by changing the local water balance. However, general patterns of how
rainfall is partitioned into interception, throughfall and stemflow for
invasive species worldwide have been seldom explored. We (a) describe the
percentage of interception, throughfall and stemflow for the invasive
woody plant species; (b) analyse the influence of morphological attributes
(i.e., life-form, bark roughness, leaf type, leaf phenology and leaf area
index) of invasive species on rainfall partitioning; and (c) compare the
rainfall partitioning fluxes for co-occurring invasive and native species,
testing whether these fluxes variation depends on water availability of
the study location. Location: Global. Time period: Present. Major taxa
studied: Plants. Methods: We compiled data of 100 studies that assessed
rainfall partitioning by invasive species (N=67) and registered their
morphological attributes. By means of a meta-analysis we compared the
rainfall partitioning by native and invasive species (N=47 comparisons)
and assessed how their fluxes were affected by water availability.
Results: Interception, throughfall and stemflow ranged from 1.6 - 59.5%,
39.1 - 92.7% and 0.1 - 31.6% of total rainfall, respectively. The bark
roughness and leaf type were the most important attributes driving
rainfall partitioning fluxes. While rough-barked species constrain
rainfall inputs by promoting higher losses due to interception,
smooth-barked species with broadleaves enhance the amount of rainwater
reaching the soil by maximizing stemflow. For pair-wise comparisons,
invasive species have higher stemflow values than native species for both
drylands and humid areas, and higher throughfall in drylands, but less in
humid areas. Main conclusions: Our findings suggest that specific
morphological attributes of invasive species determine higher localized
water inputs, which may represent an ecohydrological advantage,
particularly in water-limited ecosystems. These insights also suggest that
the ecological role of stemflow, throughfall and interception should be
considered in future plant invasions research.
Whitworth-Hulse_Global_Rainfall_Partitioning_Database Database of rainfall
partitioning and morphological characteristics for woody plant species,
and water availability on species location. More details in the Metadata
and Readme sheet in the file.