High seed diversity and availability increase rodent community stability under human disturbance and climate variation

The relationship between diversity and stability is a focus in community ecology, but the relevant hypotheses have not been rigorously tested at trophic and network levels due to a lack of long-term data of species interactions. Here, by using seed tagging and infrared camera tracking methods, we qu...

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Main Authors: Xifu Yang, Haifeng Gu, Qingjian Zhao, Yunlong Zhu, Yuwei Teng, Ying Li, Zhibin Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-11-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2022.1068795/full
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author Xifu Yang
Haifeng Gu
Qingjian Zhao
Yunlong Zhu
Yuwei Teng
Ying Li
Zhibin Zhang
Zhibin Zhang
author_facet Xifu Yang
Haifeng Gu
Qingjian Zhao
Yunlong Zhu
Yuwei Teng
Ying Li
Zhibin Zhang
Zhibin Zhang
author_sort Xifu Yang
collection DOAJ
description The relationship between diversity and stability is a focus in community ecology, but the relevant hypotheses have not been rigorously tested at trophic and network levels due to a lack of long-term data of species interactions. Here, by using seed tagging and infrared camera tracking methods, we qualified the seed-rodent interactions, and analyzed the associations of rodent community stability with species diversity, species abundance, and seed-rodent network complexity of 15 patches in a subtropical forest from 2013 to 2021. A total of 47,400 seeds were released, 1,467 rodents were marked, and 110 seed-rodent networks were reconstructed to estimate species richness, species abundance, and seed-rodent network metrics. We found, from younger to older stands, species richness and abundance (biomass) of seeds increased, while those of rodents decreased, leading to a seed-rodent network with higher nestedness, linkage density, and generality in older stands, but higher connectance in younger stands. With the increase of temperature and precipitation, seed abundance (biomass), rodent abundance, and the growth rate of rodent abundance increased significantly. We found rodent community stability (i.e., the inverse of rodent abundance variability) was significantly and positively associated with seed diversity, seed availability, linkage density and generality of seed-rodent networks, providing evidence of supporting the Bottom-Up Diversity-Stability Hypotheses and the Abundant Food Diversity-Stability Hypothesis. Our findings highlight the significant role of resource diversity and availability in promoting consumers’ community stability at trophic and network levels, and the necessity of protecting biodiversity for increasing ecosystem stability under human disturbance and climate variation.
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spelling doaj.art-ce3a31fda11d4c54b4637fc2798237cd2022-12-22T04:36:40ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-11-011310.3389/fpls.2022.10687951068795High seed diversity and availability increase rodent community stability under human disturbance and climate variationXifu Yang0Haifeng Gu1Qingjian Zhao2Yunlong Zhu3Yuwei Teng4Ying Li5Zhibin Zhang6Zhibin Zhang7State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture, Institute of Zoology, Chinese Academy of Sciences, Beijing, ChinaCAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, ChinaThe relationship between diversity and stability is a focus in community ecology, but the relevant hypotheses have not been rigorously tested at trophic and network levels due to a lack of long-term data of species interactions. Here, by using seed tagging and infrared camera tracking methods, we qualified the seed-rodent interactions, and analyzed the associations of rodent community stability with species diversity, species abundance, and seed-rodent network complexity of 15 patches in a subtropical forest from 2013 to 2021. A total of 47,400 seeds were released, 1,467 rodents were marked, and 110 seed-rodent networks were reconstructed to estimate species richness, species abundance, and seed-rodent network metrics. We found, from younger to older stands, species richness and abundance (biomass) of seeds increased, while those of rodents decreased, leading to a seed-rodent network with higher nestedness, linkage density, and generality in older stands, but higher connectance in younger stands. With the increase of temperature and precipitation, seed abundance (biomass), rodent abundance, and the growth rate of rodent abundance increased significantly. We found rodent community stability (i.e., the inverse of rodent abundance variability) was significantly and positively associated with seed diversity, seed availability, linkage density and generality of seed-rodent networks, providing evidence of supporting the Bottom-Up Diversity-Stability Hypotheses and the Abundant Food Diversity-Stability Hypothesis. Our findings highlight the significant role of resource diversity and availability in promoting consumers’ community stability at trophic and network levels, and the necessity of protecting biodiversity for increasing ecosystem stability under human disturbance and climate variation.https://www.frontiersin.org/articles/10.3389/fpls.2022.1068795/fullclimate variationdiversity-stability relationshiphabitat loss or fragmentationseed dispersalseed-rodent networkspecies interactions
spellingShingle Xifu Yang
Haifeng Gu
Qingjian Zhao
Yunlong Zhu
Yuwei Teng
Ying Li
Zhibin Zhang
Zhibin Zhang
High seed diversity and availability increase rodent community stability under human disturbance and climate variation
Frontiers in Plant Science
climate variation
diversity-stability relationship
habitat loss or fragmentation
seed dispersal
seed-rodent network
species interactions
title High seed diversity and availability increase rodent community stability under human disturbance and climate variation
title_full High seed diversity and availability increase rodent community stability under human disturbance and climate variation
title_fullStr High seed diversity and availability increase rodent community stability under human disturbance and climate variation
title_full_unstemmed High seed diversity and availability increase rodent community stability under human disturbance and climate variation
title_short High seed diversity and availability increase rodent community stability under human disturbance and climate variation
title_sort high seed diversity and availability increase rodent community stability under human disturbance and climate variation
topic climate variation
diversity-stability relationship
habitat loss or fragmentation
seed dispersal
seed-rodent network
species interactions
url https://www.frontiersin.org/articles/10.3389/fpls.2022.1068795/full
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