A Latitudinal Cline in the Taxonomic Structure of Eelgrass Epifaunal Communities is Associated With Plant Genetic Diversity

IF 6.3 1区环境科学与生态学 Q1 ECOLOGY Global Ecology and Biogeography Pub Date : 2024-09-30 DOI:10.1111/geb.13918

Collin P. Gross, J. Emmett Duffy, Kevin A. Hovel, Pamela L. Reynolds, Christoffer Boström, Katharyn E. Boyer, Mathieu Cusson, Johan Eklöf, Aschwin H. Engelen, Britas Klemens Eriksson, F. Joel Fodrie, John N. Griffin, Clara M. Hereu, Masakazu Hori, A. Randall Hughes, Mikhail V. Ivanov, Pablo Jorgensen, Melissa R. Kardish, Claudia Kruschel, Kun-Seop Lee, Jonathan Lefcheck, Karen McGlathery, Per-Olav Moksnes, Masahiro Nakaoka, Mary I. O'Connor, Nessa E. O'Connor, Jeanine L. Olsen, Robert J. Orth, Bradley J. Peterson, Henning Reiss, Francesca Rossi, Jennifer Ruesink, Erik E. Sotka, Jonas Thormar, Fiona Tomas, Richard Unsworth, Erin P. Voigt, Matthew A. Whalen, Shelby L. Ziegler, John J. Stachowicz

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Abstract

Aim

Biogenic structural complexity increases mobile animal richness and abundance at local, regional and global scales, yet animal taxa vary in their response to complexity. When these taxa also vary functionally, habitat structures favouring certain taxa may have consequences for ecosystem function. We characterised global patterns of epifaunal invertebrates in eelgrass (Zostera marina) beds that varied in structural and genetic composition.

Location

North America, Europe and Asia.

Time Period

2014.

Major Taxa Studied

Peracarid crustaceans and gastropod molluscs.

Methods

We sampled epifaunal invertebrate communities in 49 eelgrass beds across 37° latitude in two ocean basins concurrently with measurements of eelgrass genetic diversity, structural complexity and other abiotic and biotic environmental variables. We examined how species richness, abundance and community composition varied with latitude and environmental predictors using a random forest approach. We also examined how functional trait composition varied along with community structure.

Results

Total species richness decreased with latitude, but this was accompanied by a taxonomic shift in dominance from peracarid crustaceans to gastropods, which exhibited different sets of functional traits. Greater eelgrass genetic diversity was strongly correlated with both richness and abundance of peracarids, but less so for gastropods.

Main Conclusions

Our results add to a growing body of literature that suggests genetic variation in plant traits influences their associated faunal assemblages via habitat structure. Because peracarids and gastropods exhibited distinct functional traits, our results suggest a tentative indirect link between broad-scale variation in plant genetic diversity and ecosystem function.

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鳗草表生动物群落分类结构的纬度界线与植物遗传多样性有关

在地方、区域和全球范围内，生物结构的复杂性会增加移动动物的丰富度和丰度，但动物分类群对复杂性的反应却各不相同。当这些类群在功能上也存在差异时，有利于某些类群的生境结构可能会对生态系统功能产生影响。我们研究了结构和基因组成不同的鳗草（Zostera marina）海床中表栖无脊椎动物的全球模式。

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来源期刊

Global Ecology and Biogeography 环境科学-生态学

CiteScore

12.10

自引率

3.10%

发文量

170

审稿时长

3 months

期刊介绍： Global Ecology and Biogeography (GEB) welcomes papers that investigate broad-scale (in space, time and/or taxonomy), general patterns in the organization of ecological systems and assemblages, and the processes that underlie them. In particular, GEB welcomes studies that use macroecological methods, comparative analyses, meta-analyses, reviews, spatial analyses and modelling to arrive at general, conceptual conclusions. Studies in GEB need not be global in spatial extent, but the conclusions and implications of the study must be relevant to ecologists and biogeographers globally, rather than being limited to local areas, or specific taxa. Similarly, GEB is not limited to spatial studies; we are equally interested in the general patterns of nature through time, among taxa (e.g., body sizes, dispersal abilities), through the course of evolution, etc. Further, GEB welcomes papers that investigate general impacts of human activities on ecological systems in accordance with the above criteria.