Journal of Forest Research最新文献

{"title":"Relationship between herbivory and leaf traits in mangroves on Iriomote Island, southern Japan","authors":"Yu Hirano, Motoki Marui, Shuhei Tachikake, Taku Kato, Nobuo Imai","doi":"10.1080/13416979.2023.2279003","DOIUrl":"https://doi.org/10.1080/13416979.2023.2279003","url":null,"abstract":"ABSTRACTLeaf herbivory potentially affects carbon (C) and nutrient cycling in forest ecosystems. It is especially critical to study the leaf herbivory rates in mangroves to understand the pattern of resource changes from the detrital pathway to the grazing pathway. However, determinants of leaf herbivory rates in mangroves are poorly understood. We examined the differences in leaf herbivory rates among leaf phenotypes (sun or shade leaves), leaf ages (young or old leaves), and season (summer or winter) and investigated the relationships between the leaf herbivory rates and 12 leaf traits (including chemical, physiological, and physical/mechanical traits) in each of six communities from the seaward fringe to the inland of subtropical mangroves on Iriomote Island, southern Japan. The herbivory rates decreased from seaward to landward mangrove species, excluding one species in the landward mangroves. The herbivory rates also decreased as the concentration of condensed tannins or the tannins:nitrogen ratio increased but did not correlate with the other leaf traits. Overall, season, leaf phenotype, and leaf age had no effect on the herbivory rate. However, in the two seaward and one rhizophoraceous species, the herbivory rates were higher in summer than in winter and were affected by the leaf phenotypes. The concentration of leaf condensed tannins moderately influenced leaf herbivory, fluctuating from seaward to landward; therefore, it was one of the factors driving the grazing pathway in mangroves. Understanding these mechanisms is critical for a comprehensive appreciation of the high productivity of and nutrient cycling in mangrove forest ecosystems.KEYWORDS: Leaf herbivoryleaf traitsmangrovecondensed tanninsplant–herbivore interaction AcknowledgementsWe thank the Ministry of the Environment, Japan, for permission to conduct the field survey on Iriomote Island (number OKINAWA 558); M. Iwao for the chemical analyses; K. Oshima and J. Yokoi for the leaf image analyses; S. Katagiri and M. Tamamoto for the field survey; K. Yabe for levelling; S. Watanabe for helpful discussions; and Y. Nemoto for statistical analyses.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.Supplementary dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/13416979.2023.2279003Additional informationFundingThis study was supported by JST SPRING under grant JPMJSP2122 to YH and by JSPS KAKENHI under grant 22H02390 to NI.","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135038841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scientific forest management practices in Nepal: perceptions of forest users and the impact on their livelihoods","authors":"Sudha Adhikari, Kazuhiro Harada, Nabin Kumar Dahal, Ratan Gurung","doi":"10.1080/13416979.2023.2275901","DOIUrl":"https://doi.org/10.1080/13416979.2023.2275901","url":null,"abstract":"ABSTRACTScientific Forestry Management (SciFM), an advanced silvicultural practice, was implemented from 2014 in the protection-oriented community forests (CFs) of Nepal, to advance national prosperity. However, in 2021, deforestation and rampant corruption led to criticism and the program was suspended. New policy formulations and discussions are developing among different actors in forest management. We, therefore, conducted a study to determine how CF users perceived the economic, social, and environmental aspects of SciFM and how it affects their livelihoods. We surveyed 290 households, interviewed key informants and conducted group discussions in the Terai and Hilly regions, where SciFM was implemented in CFs. All the users disagreed with the cessation of SciFM. Implementation of SciFM in CFs with sufficient reserve funds had a positive impact on income. However, those with fewer reserve funds incurred losses due to the initial investment required. 80% of CF users supported SciFM due to its economic benefits; 17% agreed on both economic and social benefits, while a mere 3% valued it for all three merits including resource conservation. SciFM was driven by the desire for financial upliftment, unaware of the corruption involved in its implementation. Policymakers emphasize the importance of addressing corruption issues and providing government support to implement advanced silviculture practices that are easily comprehensible to local forest users. The study’s findings underscore the need for policymakers to regain trust and gain public acceptance and support for regulations and management initiatives. This can be achieved by fostering transparent communication, consistent reliable actions, and active listening to stakeholders’ concerns and feedback.KEYWORDS: Community forestsScientific forest managementforest-dependent userslivelihoodsNepal AcknowledgementsThe authors gratefully acknowledge the support from the community forest user group members of studied community forests. We would like to thank Arvinda Panthee for his valuable comments on the manuscript.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementData are not publicly available, though the data may be made available upon request from the corresponding author.Supplementary dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/13416979.2023.2275901Additional informationFundingThis research was supported by Kakubun Suzuki Foundation for Environmental Conservation (No. R3-1-04).","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135390311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization and development of 14 microsatellite markers for mountain stewartia ( <i>Stewartia ovata</i> ): an uncommon, Appalachian-endemic member of the tea family","authors":"Zane C. Smith, Grace M. Pietsch, Casey Richards, Meher Ony, Clayton Hale, Joshua J. Granger, William E. Klingeman, Matthew Huff, Denita Hadziabdic","doi":"10.1080/13416979.2023.2266618","DOIUrl":"https://doi.org/10.1080/13416979.2023.2266618","url":null,"abstract":"ABSTRACTMountain stewartia [Stewartia ovata (Cav.) Weatherby] is a rare, endemic understory tree native to the southeastern U.S.A. While found only in microsites across southeastern Appalachia, the species distribution spans from northern Alabama and Georgia to southern Kentucky and Virginia. However, most occurrences have been recorded in Tennessee. While recent distribution surveys and habitat suitability modeling conducted for this species have improved our understanding of the environmental parameters that constitute its fundamental niche, the ecological profile of S. ovata remains poorly understood. Consequently, its rarity has raised concerns as to the long-term resilience of this species in the wild. Faced with these challenges, the assessment of existing genetic diversity in S. ovata through genetically informative molecular resources is critical to understanding the adaptive potential and ecological resilience of the species. Microsatellites are cost-efficient molecular tools capable of addressing these concerns by elucidating trends in population structure, population demography, and inbreeding. To increase the available genetic resources for S. ovata, we screened 105 microsatellite loci for their suitability to assess these population features using capillary gel electrophoresis. The utility of these markers was evaluated by assessing polymorphism information content (PIC) and population statistics, which yielded 14 highly polymorphic microsatellite markers. These markers displayed an average PIC of 0.695 (PIC range of 0.538–0.851), which supports their ability to capture fine-scale genetic diversity within the species. We also report a low average observed heterozygosity of 0.375 (versus an expected heterozygosity of 0.645) among screened loci, which reinforces the need for broader genetic diversity assessments within this species.Keywords: Mountain StewartiaStewartia ovatamicrosatellite markersAppalachian-endemic treeU.S. native tree Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported, in part, by the United States Department of Agriculture (USDA; Grant 58‐6062‐6) and the University of Tennessee, Department of Entomology and Plant Pathology and the Office of Undergraduate Research. Partial funding and support for student efforts were provided by the USDA National Institute of Food and Agriculture Crop Protection and Pest Management (CPPM) Grant #13131957 and #7002511 (TEN00600) and #7004409 Hatch Projects (IPM and Sustainable Strategies for Arthropod Pests and Plant Diseases in Nurseries, Managed Landscapes and Urban Forests and Forest Health and Resilience, respectively). Special thanks to the University of Tennessee Open Publishing Support Fund for providing publication resources.","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136112928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Haplotype-resolved <i>de novo</i> genome assemblies of four coniferous tree species","authors":"Kenta Shirasawa, Kentaro Mishima, Hideki Hirakawa, Tomonori Hirao, Miyoko Tsubomura, Soichiro Nagano, Taiichi Iki, Sachiko Isobe, Makoto Takahashi","doi":"10.1080/13416979.2023.2267304","DOIUrl":"https://doi.org/10.1080/13416979.2023.2267304","url":null,"abstract":"Coniferous trees in gymnosperm are an important source of wood production. Because of their long lifecycle, the breeding programs of coniferous tree are time- and labor-consuming. Genomics could accelerate the selection of superior trees or clones in the breeding programs; however, the genomes of coniferous trees are generally giant in size and exhibit high heterozygosity. Therefore, the generation of long contiguous genome assemblies of coniferous species has been difficult. In this study, we employed high-fidelity (HiFi) long-read sequencing technology to sequence and assemble the genomes of four coniferous tree species, Larix kaempferi, Chamaecyparis obtusa, Cryptomeria japonica, and Cunninghamia lanceolata. Genome assemblies of the four species totaled 13.5 Gb (L. kaempferi), 8.5 Gb (C. obtusa), 9.2 Gb (C. japonica), and 11.7 Gb (C. lanceolata), which covered 99.6% of the estimated genome sizes on average. The contig N50 value, which indicates assembly contiguity, ranged from 1.2 Mb in C. obtusa to 16.0 Mb in L. kaempferi, and the assembled sequences contained, on average, 89.2% of the single-copy orthologs conserved in embryophytes. Assembled sequences representing alternative haplotypes covered 70.3–95.1% of the genomes, suggesting that the four coniferous tree genomes exhibit high heterozygosity levels. The genome sequence information obtained in this study represents a milestone in tree genetics and genomics, and will facilitate gene discovery, allele mining, phylogenetics, and evolutionary studies in coniferous trees, and accelerate forest tree breeding programs.","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136114160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aquatic hyphomycete assemblages of <i>Abies sachalinensis</i> leaf litter immersed in a stream in Hokkaido, Japan","authors":"Kohhei Yamamoto, Toshizumi Miyamoto, Akiko Nagasaka, Yu Nagasaka, Yutaka Tamai, Takashi Yajima","doi":"10.1080/13416979.2023.2265113","DOIUrl":"https://doi.org/10.1080/13416979.2023.2265113","url":null,"abstract":"ABSTRACTAquatic hyphomycetes are key decomposers of plant-litter in freshwater environments. Previous studies have shown that conifer needles are colonized less frequently by aquatic hyphomycetes than broad-leaf species. Sakhalin fir (Abies sachalinensis) is the most common coniferous tree species planted for timber production in Hokkaido, Japan. Herein, we investigated aquatic hyphomycete assemblages involving Sakhalin fir needle litter and compared them with those of broad-leaf tree species, including Japanese oak (Quercus crispula) and Japanese linden (Tilia japonica), during immersion in a stream. Seventy percent of the total fungal species observed in fir needles were also observed in broad-leaf litter. However, the structure of the aquatic hyphomycete assemblages differed between the fir and two broad-leaf species, especially in the middle to late stages of the immersion period. The increase in species number and conidia number in fir needles was slower than that in oak leaves in the early stages of the immersion period. However, they continued to increase rapidly relative to the broad-leaf tree litter during the middle stages of the immersion period. These results suggest that fir needle litter was not difficult for aquatic hyphomycetes to colonize in the middle to late stages of the immersion period.KEYWORDS: Aquatic fungiconifer litterSakhalin firfreshwaterfungal assemblage Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary materialSupplemental data for this article can be accessed online at https://doi.org/10.1080/13416979.2023.2265113Additional informationFundingThis work was supported by the Mitsui & Co., Ltd. Environment Fund, and JSPS KAKENHI Grant Number JP25252030.","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136014448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A pilot study on home range of female Chinese goral ( <i>Naemorhedus griseus</i> ): exploring GPS tracking data in a cliff landscape","authors":"Yueqi Yin, Shupei Tang, Yang Teng, Zhiyong Han, Liji Wu, Fuli Gao, Weidong Bao","doi":"10.1080/13416979.2023.2265013","DOIUrl":"https://doi.org/10.1080/13416979.2023.2265013","url":null,"abstract":"ABSTRACTHome range size estimation is an important basis for developing effective conservation strategies and provides important insights into the study of animal behavior and spatial ecology. We analyze home range variations and the fitfulness of estimation methods on Chinese gorals (Naemorhedus griseus) living at a cliff landscape with GPS tracking data. We report annual, seasonal, and monthly home range sizes of five female Chinese gorals tracked from February 2015 to September 2018. We found variations existed in 95% seasonal home range sizes among estimation methods. We recommend that the α-LoCoH model be used in home range estimations, as this model appeared to more accurately reflect animal locations within the steep cliff habitat in our study area. Furthermore, more animals should be GPS tracked to ensure the validity of any interpretation concerning their home range size in a rugged habitat. This study was the first conducting home-range GPS tracking of Chinese gorals in their northern distribution range. Additionally, our findings provided previously unknown information regarding the home range traits of this endangered species, and they may contribute to the development of effective conservation strategies.KEYWORDS: Chinese goralhome rangeminimum convex polygonkernel density estimationα-local convex hull AcknowledgementsWe would like to extend our gratitude to all the staff in the Inner Mongolia Saihanwula National Nature Reserve for their valuable support in helping us capture and collar the animals, as well as maintaining the habitats. We thank the coordinator editor and two anonymous reviewers for their insightful comments on the original manuscript.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis work was supported by the National Forestry and Grassland Administration (No. 20141123).","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136211884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of soil environmental changes accompanying soil erosion on the soil prokaryotes and fungi of cool temperate forests in Southern Japan","authors":"Fu-Chia Chen, Ayumi Katayama, Mimori Oyamada, Taku Tsuyama, Yoshio Kijidani, Yuji Tokumoto","doi":"10.1080/13416979.2023.2265006","DOIUrl":"https://doi.org/10.1080/13416979.2023.2265006","url":null,"abstract":"ABSTRACTSoil erosion, which involves the degradation of the physical and chemical properties of soil, is a major threat to the soil environment. Although the effects of soil erosion on the physical or chemical properties of forests have been studied, little has been reported on the soil microbial community, which is likely to affect forest ecosystems. This study aimed to elucidate how the microbiome changed with the soil environment accompanying soil erosion in cool temperate mixed forests in Southern Japan, where soil erosion has been accelerated by the increased population of sika deer. We investigated the soil microbial communities of the different soil erosion intensities at three forest sites. In prokaryotic communities, diversity indices were increased with the sum of the height of exposed roots (SUMH), an index of soil erosion. In fungal communities, the relative abundances of plant pathogenic and wood saprotroph fungi were increased as SUMH increased and those of symbiotrophs and ectomycorrhizal fungi were increased with humus organic matter content, suggesting that the difficulties in establishing plants would be increased as soil erosion progressed because of the changes in the composition and function of fungal communities in eroded areas. Moreover, soil fungal communities had a more complex co-occurrence network than that of prokaryote, suggesting that the effects of soil erosion on fungal network is smaller than those on bacterial network. Changes in the soil environment induced by soil erosion altered the microbiomes in the deeper layers of the soil and had different effect on prokaryotes and fungi.KEYWORDS: Japanese beech (Fagus crenata)Microbial diversityMultifunctionalitySoil lossSymbiotrophic fungi Disclosure statementThe authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.Author contributionsA.K. and Y.T, conceptualized, designed, and administrated this project, and lead the funding acquisition of this study; F.C., A.K., M.O. and Y.T. conducted the sample and data collections and raw data curation; F.C. and Y.T. designed and analyzed the study data and prepared the draft; all authors reviewed manuscript critically and wrote the manuscript.Data availability materialsAll the raw sequence data of the prokaryotic 16S rDNA and eukaryotic 18S rRNA genes were submitted in the Sequence Read Archive of DDBJ database under the accession number DRA015283.Geolocation information32°22’N, 131°11’E,32°22ʹN, 131°08ʹE,32°09’N, 130°55’ESupplementary materialSupplemental data for this article can be accessed online at https://doi.org/10.1080/13416979.2023.2265006Additional informationFundingThis work was financially supported by Nippon Life Insurance Foundation (2021-03), Leading Initiative for Excellent Young Researchers from the Ministry of Education, Culture, Sports, Science and Technology, Japan (Grant Number JPMXS0320220123), and","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136353591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Age trends in genetic parameters and genetic gains of growth traits in multiple progeny test sites of hinoki cypress ( <i>Chamaecyparis obtusa</i> )","authors":"Yusuke Takahashi, Michinari Matsushita, Akira Tamura, Mineko Ohira, Makoto Takahashi","doi":"10.1080/13416979.2023.2265004","DOIUrl":"https://doi.org/10.1080/13416979.2023.2265004","url":null,"abstract":"ABSTRACTGrowth data obtained from Chamaecyparis obtusa growing at 28 progeny test sites in the Kanto breeding region of Japan were analyzed to estimate the genetic parameters and genetic gains. Specifically, the data were used to estimate stem diameter at breast height (DBH), tree height (TH), and stem volume in order to assess the feasibility of breeding, and differences in genetic parameters and genetic gains associated with growth traits based on age and climatic conditions were clarified. The median values of narrow-sense heritability for DBH and TH across all ages ranged from 0.229 to 0.263 and from 0.201 to 0.433, respectively. Based on the efficiency of improvement (genetic gain per year), it appears that the most efficient selection for DBH and stem volume would be at one-third of the improvement target age (set to 30 years in the present study). We analyzed the variation of narrow-sense heritability and age trends of those among three groups of test sites exposed to different climatic conditions. Age and group × age interaction were shown to have significant effects on the narrow-sense heritability of TH and volume and that of DBH and volume, respectively. However, no significant effects of group × age interaction were detected on the efficiencies for gain per year of all traits, implying that this parameter might not be affected by climate conditions. Therefore, it was suggested that early selection is possible with almost equal efficiency in all climate groups.KEYWORDS: Climate conditionheritabilitygenetic correlationgenetic gain AcknowledgementsStaff from the National Forests, the Prefectures and Forest Tree Breeding Center (FTBC), and the Forestry and Forest Products Research Institute established, maintained, and investigated the progeny test sites used in this study. Furthermore, the FTBC staff has been continuously managing the data used in this study. We appreciate their never-ending efforts.Author contributionsThe research layout was designed by YT, MM, MO, AT, and MT. MM assisted with the statistical analysis. The manuscript was analyzed and drafted by YT. All authors contributed to the final manuscript by discussing the findings and conclusion.Disclosure statementThe author(s) state that they do not have any competing interests.Supplementary materialSupplemental data for this article can be accessed online at https://doi.org/10.1080/13416979.2023.2265004","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135591981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Importance of large-diameter conifer snags for saproxylic beetle (Cerambycidae) assemblages in old-growth remnants in Japan","authors":"Kenichi Ozaki, Katsuhiko Sayama, Masakazu Sano","doi":"10.1080/13416979.2023.2257464","DOIUrl":"https://doi.org/10.1080/13416979.2023.2257464","url":null,"abstract":"ABSTRACTConversion of old-growth forests to managed forests reduces the amount and variety of dead wood, particularly large snags (standing dead trees) are disappeared. Therefore, organisms that rely on large snags are considered to be severely affected by forest practices that convert old-growth forests to managed forests. We examined the effect of snag characteristics (diameter, bark cover, and decay gradient) on longicorn beetle (Cerambycidae) assemblages to search for species that prefer large-diameter snags in two old-growth remnants in a cool-temperate mixed forest and a sub-boreal conifer forest in Hokkaido, Japan. We collected beetles using window traps attached to conifer snags belonging to genus Abies and Picea and evaluated how snag characteristics affected beetles that feed on conifers with considering spatial autocorrelation. Species richness and total abundance were not associated with any of the snag characteristics. However, permutation tests in redundancy analysis revealed that snag diameter and bark cover affected species composition in the mixed forest, while only snag diameter had a significant effect in the conifer forest. Two (Macroleptura regalis and Prionus insularis insularis) and one (Sachalinobia koltzei) species preferred large-diameter snags in the mixed forest and the conifer forest, respectively. These species should be used as conservation targets to reduce the impacts of forest practices on saproxylic beetles. In contrast, one species (Molorchus minor fuscus) preferred small-diameter snags in the conifer forest. To conserve species that rely on large snags, we should maintain large snags in harvesting operations and retain large living trees for the future recruitment of large snags.KEYWORDS: Community analysisdead woodforest practiceinsect conservationspatial autocorrelation AcknowledgementsWe thank S. Ishibashi and S. Iida for providing information on the study sites, T. Yoshihisa and K. Sakakibara for collecting insects and helping fieldwork, and A. Komatsu for sorting insect samples.Disclosure statementNo potential conflict of interest was reported by the author(s).Supplementary dataSupplemental data for this article can be accessed online at https://doi.org/10.1080/13416979.2023.2257464Additional informationFundingThis study was supported by JSPS KAKENHI grant number JP25252030.","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135967141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What on-site landscape experiences attract potential visitors to a site? A Japan–Korea cross-cultural comparison","authors":"Yusuke Mizuuchi, Yonghoon Son","doi":"10.1080/13416979.2023.2257456","DOIUrl":"https://doi.org/10.1080/13416979.2023.2257456","url":null,"abstract":"ABSTRACTIn the age of big data, social media’s influence on on-site landscape experiences is growing, and the relationship between on- and off-site landscape planning and management is becoming more important. The study’s objectives were: 1) to identify scenic hotspots based on on-site visitor experiences, 2) clarify landscape preferences and attractiveness based on photographs taken at scenic hotspots, and 3) examine similarities and differences between Japanese and Korean visitors in terms of landscape preferences and attractiveness. The data were collected using geotagged visitor employed photography from 153 visitors to the Takao Quasi-National Park in Japan were used to understand off-site appreciation, and compare Japanese and Korean visitors’ experiences. Photo-based questionnaires were completed by 42 Japanese and 40 Korean respondents. We collected 1,645 geotagged photographs, and performed a GIS analysis with network-based kernel density estimation to identify scenic hotspots. The data extracted from the photo-based questionnaire were used to analyze the relationship between on-site and off-site experiences, as well as similarities and differences between the Japanese and Korean participants. The data were analyzed using means, Welch’s t-test, Wilcoxon sum-rank test, Pearson’s correlation analysis, and Kendall’s correlation analysis. The results identified nine scenic hotspots, and revealed that the photographs that the Japanese visitors preferred to take would not necessarily attract tourists, nor were they the same as the scenic spots and objects the Korean visitors found attractive. As international tourism expands, cross-cultural research on on- and off-site experiences and preferences has become increasingly important for forest landscape management and sustainable tourism.KEYWORDS: Landscape perceptionlandscape preferencenational parkGISgeotagged visitor employed photography AcknowledgementsWe would like to thank the 153 participants and 82 respondents who joined in our research.Disclosure statementNo potential conflict of interest was reported by the author(s).Geolocation informationJapanSupplementary materialSupplemental data for this article can be accessed online at https://doi.org/10.1080/13416979.2023.2257456.Additional informationFundingThis work was supported by the JSPS [14J05265].","PeriodicalId":15839,"journal":{"name":"Journal of Forest Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135966728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}