Cited by 191Freshwater macroinvertebrate diversity and ecologyEcology and Vegetation Dynamics StudiesInvertebrate Taxonomy and Ecology

The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.

Global distribution of a key trophic guild contrasts with common latitudinal diversity patterns

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Abstract

Most hypotheses explaining the general gradient of higher diversity toward the equator are implicit or explicit about greater species packing in the tropics. However, global patterns of diversity within guilds, including trophic guilds (i.e., groups of organisms that use similar food resources), are poorly known. We explored global diversity patterns of a key trophic guild in stream ecosystems, the detritivore shredders. This was motivated by the fundamental ecological role of shredders as decomposers of leaf litter and by some records pointing to low shredder diversity and abundance in the tropics, which contrasts with diversity patterns of most major taxa for which broad-scale latitudinal patterns haven been examined. Given this evidence, we hypothesized that shredders are more abundant and diverse in temperate than in tropical streams, and that this pattern is related to the higher temperatures and lower availability of high-quality leaf litter in the tropics. Our comprehensive global survey (129 stream sites from 14 regions on six continents) corroborated the expected latitudinal pattern and showed that shredder distribution (abundance, diversity and assemblage composition) was explained by a combination of factors, including water temperature (some taxa were restricted to cool waters) and biogeography (some taxa were more diverse in particular biogeographic realms). In contrast to our hypothesis, shredder diversity was unrelated to leaf toughness, but it was inversely related to litter diversity. Our findings markedly contrast with global trends of diversity for most taxa, and with the general rule of higher consumer diversity at higher levels of resource diversity. Moreover, they highlight the emerging role of temperature in understanding global patterns of diversity, which is of great relevance in the face of projected global warming.

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Crossref · 10.1890/10-2244.1

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  • Differences exist in life-cycle length and phenology patterns of aquatic fauna, food web bases, detritus, green algae, and generally higher biodiversity, so that conservation and restoration efforts need to consider these specific characteristics.

    “Differences exist, among other places, in the life-cycle length and the phenology patterns of the aquatic fauna, in the food web bases, on detritus [94,95], or on green algae [96,97], and in the generally higher biodiversity [92,98], so that conservation and restoration efforts need to consider these specific characteristics [9,10,99].”

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Metadata

Authors
Boyero, L., Pearson, R. G., Dudgeon, D., Graça, M. A. S., Gessner, M. O., Albariño, R. J., Ferreira, V., Yule, C. M., Boulton, A. J., Arunachalam, M., Callisto, M., Chauvet, E., Ramírez, A., Chará, J., Moretti, M. S., Gonçalves, J. F., Helson, J. E., Chará-Serna, A. M., Encalada, A. C., Davies, J. N., Lamothe, S., Cornejo, A., Li, A. O. Y., Buria, L. M., Villanueva, V. D., Zúñiga, M. C., & Pringle, C. M.
Affiliations
  • Consejo Superior de Investigaciones Científicas (ES)
  • James Cook University (AU)
  • University of Hong Kong (HK)
  • University of Coimbra (PT)
  • ETH Zurich (CH)
  • Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
  • Monash University Malaysia (MY)
  • University of New England (AU)
  • Manonmaniam Sundaranar University (IN)
  • Universidade Federal de Minas Gerais (BR)
  • University of Puerto Rico System (PR)
  • University of Toronto (CA)
  • Universidad San Francisco de Quito (EC)
  • Centre National de la Recherche Scientifique (FR)
  • University of Georgia (US)
Venue
Ecology
Publisher
Wiley
Published
2011-09
Volume
92
Issue
9
Pages
1839-1848
ISSN
0012-9658 (ISSN-L)
OpenAlex
W2012697334
Cited by
191
References
48
Citations by year
2026: 4 · 2025: 2 · 2024: 9 · 2023: 7 · 2022: 16 · 2021: 26 · 2020: 16 · 2019: 15 · 2018: 18 · 2017: 11 · 2016: 18 · 2015: 18 · 2014: 10 · 2013: 14 · 2012: 7
FWCI
8.76
Type
journal article
Language
en
Open access
Locations
  • Ecology (publishedVersion)
  • PubMed (publishedVersion)
  • ResearchOnline - JCU (James Cook University) (submittedVersion)
  • DORA Eawag (Swiss Federal Institute of Aquatic Science and Technology (Eawag)) (submittedVersion, other-oa)
  • EPubDev Repository (submittedVersion)
  • HAL (submittedVersion, other-oa)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, other-oa)
  • Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion)
  • Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion, other-oa)
  • The HKU Scholars Hub (University of Hong Kong) (submittedVersion)
  • RUNE (Research UNE) (submittedVersion)
Funders
  • National Geographic Society (7980-06)
  • James Cook University
Topics
  • Physical Sciences › Environmental Science › Ecology › Freshwater macroinvertebrate diversity and ecology
  • Physical Sciences › Environmental Science › Nature and Landscape Conservation › Ecology and Vegetation Dynamics Studies
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Invertebrate Taxonomy and Ecology
Keywords
trophic guilds, latitudinal diversity gradient, stream ecosystems, leaf litter decomposition, water temperature, biogeographic realms, leaf litter quality, resource diversity, consumer heterogeneity, global warming
MeSH terms
Animals, Demography, Feeding Behavior, Invertebrates, Food Chain, Biodiversity

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