Abstract
More than half of the world’s rivers dry up periodically, but our understanding of the biological communities in dry riverbeds remains limited. Specifically, the roles of dispersal, environmental filtering and biotic interactions in driving biodiversity in dry rivers are poorly understood. Here, we conduct a large-scale coordinated survey of patterns and drivers of biodiversity in dry riverbeds. We focus on eight major taxa, including microorganisms, invertebrates and plants: Algae, Archaea, Bacteria, Fungi, Protozoa, Arthropods, Nematodes and Streptophyta. We use environmental DNA metabarcoding to assess biodiversity in dry sediments collected over a 1-year period from 84 non-perennial rivers across 19 countries on four continents. Both direct factors, such as nutrient and carbon availability, and indirect factors such as climate influence the local biodiversity of most taxa. Limited resource availability and prolonged dry phases favor oligotrophic microbial taxa. Co-variation among taxa, particularly Bacteria, Fungi, Algae and Protozoa, explain more spatial variation in community composition than dispersal or environmental gradients. This finding suggests that biotic interactions or unmeasured ecological and evolutionary factors may strongly influence communities during dry phases, altering biodiversity responses to global changes.
Original language | English |
---|---|
Article number | 7233 |
Pages (from-to) | 1-15 |
Number of pages | 15 |
Journal | Nature Communications |
Volume | 15 |
Issue number | 1 |
DOIs | |
Publication status | Published - Aug 2024 |
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In: Nature Communications, Vol. 15, No. 1, 7233, 08.2024, p. 1-15.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Unravelling large-scale patterns and drivers of biodiversity in dry rivers
AU - Foulquier, Arnaud
AU - Datry, Thibault
AU - Corti, Roland
AU - von Schiller, Daniel
AU - Tockner, Klement
AU - Stubbington, Rachel
AU - Gessner, Mark O.
AU - Boyer, Frédéric
AU - Ohlmann, Marc
AU - Thuiller, Wilfried
AU - Rioux, Delphine
AU - Miquel, Christian
AU - Albariño, Ricardo
AU - Allen, Daniel C.
AU - Altermatt, Florian
AU - Arce, Maria Isabel
AU - Arnon, Shai
AU - Banas, Damien
AU - Banegas-Medina, Andy
AU - Beller, Erin
AU - Blanchette, Melanie L.
AU - Blessing, Joanna
AU - Boëchat, Iola Gonçalves
AU - Boersma, Kate
AU - Bogan, Michael
AU - Bonada, Núria
AU - Bond, Nick
AU - Brintrup, Katherine
AU - Bruder, Andreas
AU - Burrows, Ryan
AU - Cancellario, Tommaso
AU - Canhoto, Cristina
AU - Carlson, Stephanie
AU - Cid, Núria
AU - Cornut, Julien
AU - Danger, Michael
AU - de Freitas Terra, Bianca
AU - De Girolamo, Anna Maria
AU - del Campo, Rubén
AU - Díaz Villanueva, Verónica
AU - Dyer, Fiona
AU - Elosegi, Arturo
AU - Febria, Catherine
AU - Figueroa Jara, Ricardo
AU - Four, Brian
AU - Gafny, Sarig
AU - Gómez, Rosa
AU - Gómez-Gener, Lluís
AU - Guareschi, Simone
AU - Gücker, Björn
AU - Hwan, Jason
AU - Jones, J. Iwan
AU - Kubheka, Patrick S.
AU - Laini, Alex
AU - Langhans, Simone Daniela
AU - Launay, Bertrand
AU - Le Goff, Guillaume
AU - Leigh, Catherine
AU - Little, Chelsea
AU - Lorenz, Stefan
AU - Marshall, Jonathan
AU - Martin Sanz, Eduardo J.
AU - McIntosh, Angus
AU - Mendoza-Lera, Clara
AU - Meyer, Elisabeth I.
AU - Miliša, Marko
AU - Mlambo, Musa C.
AU - Morais, Manuela
AU - Moya, Nabor
AU - Negus, Peter
AU - Niyogi, Dev
AU - Pagán, Iluminada
AU - Papatheodoulou, Athina
AU - Pappagallo, Giuseppe
AU - Pardo, Isabel
AU - Pařil, Petr
AU - Pauls, Steffen U.
AU - Polášek, Marek
AU - Rodríguez-Lozano, Pablo
AU - Rolls, Robert J.
AU - Sánchez-Montoya, Maria Mar
AU - Savić, Ana
AU - Shumilova, Oleksandra
AU - Sridhar, Kandikere R.
AU - Steward, Alisha
AU - Taleb, Amina
AU - Uzan, Avi
AU - Valladares, Yefrin
AU - Vander Vorste, Ross
AU - Waltham, Nathan J.
AU - Zak, Dominik H.
AU - Zoppini, Annamaria
N1 - Funding Information: Molecular analyses were funded by Universit\u00E9 Grenoble Alpes (UGA) through the AGIR-POLE-PAGE program (DRIME project, AGIR-POLE-PAGE 2016). Further funding was provided by the H2020 European Research and Innovation action Grant Agreement N\u00B0869226 (DRYvER). We thank the landholders who enabled the collection of samples from private land and the Commonwealth Environmental Water Office for support. We also thank S. O. D\u00EDaz Huezo, F. Erzinger, J. Gelbrecht, M.A.S. Gra\u00E7a, J. L\u00F3pez, C.T. Robinson, V. Rosset for their help in collecting samples in the field and B. Obrador for sediment texture analyses. DvS and NB are Serra H\u00FAnter Fellows. PRL was supported by a Margalida Comas postdoctoral contract (PD/031/2018) funded by the Government of the Balearic Islands and the European Social Fund, and by a Juan de la Cierva-Incorporaci\u00F3n fellowship (IJC2019-041601-I). MTB was supported by a David H. Smith Conservation Research Fellowship. PP and MP were supported by the Czech Science Foundation grant no. GA23-05268S. Publisher Copyright: © The Author(s) 2024.
PY - 2024/8
Y1 - 2024/8
N2 - More than half of the world’s rivers dry up periodically, but our understanding of the biological communities in dry riverbeds remains limited. Specifically, the roles of dispersal, environmental filtering and biotic interactions in driving biodiversity in dry rivers are poorly understood. Here, we conduct a large-scale coordinated survey of patterns and drivers of biodiversity in dry riverbeds. We focus on eight major taxa, including microorganisms, invertebrates and plants: Algae, Archaea, Bacteria, Fungi, Protozoa, Arthropods, Nematodes and Streptophyta. We use environmental DNA metabarcoding to assess biodiversity in dry sediments collected over a 1-year period from 84 non-perennial rivers across 19 countries on four continents. Both direct factors, such as nutrient and carbon availability, and indirect factors such as climate influence the local biodiversity of most taxa. Limited resource availability and prolonged dry phases favor oligotrophic microbial taxa. Co-variation among taxa, particularly Bacteria, Fungi, Algae and Protozoa, explain more spatial variation in community composition than dispersal or environmental gradients. This finding suggests that biotic interactions or unmeasured ecological and evolutionary factors may strongly influence communities during dry phases, altering biodiversity responses to global changes.
AB - More than half of the world’s rivers dry up periodically, but our understanding of the biological communities in dry riverbeds remains limited. Specifically, the roles of dispersal, environmental filtering and biotic interactions in driving biodiversity in dry rivers are poorly understood. Here, we conduct a large-scale coordinated survey of patterns and drivers of biodiversity in dry riverbeds. We focus on eight major taxa, including microorganisms, invertebrates and plants: Algae, Archaea, Bacteria, Fungi, Protozoa, Arthropods, Nematodes and Streptophyta. We use environmental DNA metabarcoding to assess biodiversity in dry sediments collected over a 1-year period from 84 non-perennial rivers across 19 countries on four continents. Both direct factors, such as nutrient and carbon availability, and indirect factors such as climate influence the local biodiversity of most taxa. Limited resource availability and prolonged dry phases favor oligotrophic microbial taxa. Co-variation among taxa, particularly Bacteria, Fungi, Algae and Protozoa, explain more spatial variation in community composition than dispersal or environmental gradients. This finding suggests that biotic interactions or unmeasured ecological and evolutionary factors may strongly influence communities during dry phases, altering biodiversity responses to global changes.
UR - http://www.scopus.com/inward/record.url?scp=85201828629&partnerID=8YFLogxK
U2 - 10.1038/s41467-024-50873-1
DO - 10.1038/s41467-024-50873-1
M3 - Article
C2 - 39174521
AN - SCOPUS:85201828629
SN - 2041-1723
VL - 15
SP - 1
EP - 15
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 7233
ER -