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Seagrass meadows provide multiple benefits to adjacent coral reefs through various microhabitat functions

Ecosystem Health and Sustainability 2020年第1期6卷 533-540,532页

作者： Jianguo Du Wenjia Hu Ivan Nagelkerken Laddawan Sangsawang Kar Hoe Loh Jillian Lean-Sim Ooi Jianji Liao Xinqing Zheng Shuting Qiu Bin Chen Third Institute of Oceanography Ministry of Natural ResourcesXiamenChina Fujian Provincial Key Laboratory of Marine Ecological Conservation and Restoration XiamenChina School of Biological Sciences and the Environment Institute The University of AdelaideAdelaideAustralia Eastern Gulf of Thailand Marine and Coastal Resources Research and Development CenterRayongThailand Institute of Ocean and Earth Sciences University of MalayaKuala LumpurMalaysia Department of Geography Faculty of Arts and Social SciencesUniversity of MalayaKuala LumpurMalaysia

Tropical seagrass meadows and coral reefs often function as interconnected marine habitats,but they are often studied and managed as homogenous *** macrohabitats,seagrass meadows provide important benefits to adjacent reef ecosystems by acting as natural filters of sediments and nutrients,and by providing critical feeding,nursery,and refuge habitats for reef fishes and other *** the macrohabitat functions of seagrass meadows have been often acknowledged,their microhabitats functions have largely been *** purpose of the study is to explore how seagrass meadows provide multiple benefits to adjacent coral reefs through various microhabitat *** paper reveals some of the diversity of microhabitats that seagrass meadows contain,such as macroalgal mats,rubble cavities,sand patches with sparse seagrass,anemone gardens,hard substratum,and sponges mixed with *** highlight the ways in which reef creatures have diversified and specialized in using these different microhabitats,and postulate that seagrass microhabitat diversity enhances the habitat function and faunal diversity of seagrass meadows.

关键词： Coastal ecosystems habitat function connectivity marine biodiversity

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Soil compression influences the avoidance behavior of Allonychiurus kimi(Collembola)to cadmium and copper

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Pedosphere 2022年第3期32卷 487-494页

作者： Jino SON Yun-Sik LEE Yongeun KIM Kijong CHO OJeong Eco-Resilience Institute Korea UniversitySeoul 02841(Republic of Korea) Department of Environmental Science and Ecological Engineering Korea UniversitySeoul 02841(Republic of Korea) Institute of Environment and Ecology Korea UniversitySeoul 02841(Republic of Korea)

The behavior of soil organisms inhabiting soil pore spaces can be influenced by soil compression,which can affect their avoidance behavior to *** this study,we aimed to evaluate the effect of soil compression on the avoidance behavior of Allonychiurus kimi(Collembola)to heavy metals cadmium and ***,to assess the applicability of the avoidance test guideline of the International Organization for Standardization(ISO)developed for Folsomia candida,we investigated the avoidance behavior of *** to cadmium and copper in an artificial soil with a loose structure(bulk density of 0.25 g cm^(-3)),the porous texture of which was sufficiently loose to enable *** to move between pore *** effect of soil compression on the avoidance behavior of *** to both metals was evaluated in compressed soil(bulk density of 0.64 g cm^(-3))with a uniformly compressed soil surface,and avoidance behavior was investigated at 24-h intervals over a 120-h *** that *** is unable to burrow into compressed soil,the compressed soil test can minimize the effects of differences in soil factors,such as soil porosity and bulk density,on the behavior of this *** the artificial soil,a statistically significant avoidance behavior of *** was observed at cadmium and copper concentrations greater than 50 and 200 mg kg^(-1),respectively,thereby indicating the applicability of the ISO avoidance test guidelines for *** compared at the same exposure time point,the avoidance response to both metals in compressed soil was less sensitive than that in uncompressed *** addition,we observed differences in the effects of metals on avoidance response in the compressed soil over time,with the effect of cadmium increasing with time and the effect of copper showing the opposite ***,we found that soil compression can affect the avoidance behavior of *** to cadmium and copper,and we discussed the advantages and limitations of using compressed

关键词： behavioral endpoint ecotoxicity test habitat function heavy metal pollutant springtail

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