Pub Date : 2024-10-18DOI: 10.1016/j.japb.2024.09.009
Mark Arcebal K. Naive , Jeco Jed J. Ruales , Darlo Novo M. Beltran , Eddie P. Mondejar , Ralph Rj E. Rozano
During our continued expeditions in Mindanao Island of southern Philippines, a new species, Etlingera lacerata Naive, was discovered and is herein described and illustrated. Resembling Etlingera amomoides closely, it is easily distinguished by its turbinate spike with a tapering tip and a red labellum adorned with occasional white spots along the lacerate margin. This study includes a comprehensive species description, colored photographs, phenology, habitat details, geographical information, and a provisional conservation assessment for this new endemic Etlingera species. With this discovery, the total of known Etlingera species in the Philippines rises to 18, with 12 of them being endemic to the archipelago.
{"title":"Etlingera lacerata (Alpinieae, Zingiberaceae), a new ginger species discovered in Mindanao Island, Philippines","authors":"Mark Arcebal K. Naive , Jeco Jed J. Ruales , Darlo Novo M. Beltran , Eddie P. Mondejar , Ralph Rj E. Rozano","doi":"10.1016/j.japb.2024.09.009","DOIUrl":"10.1016/j.japb.2024.09.009","url":null,"abstract":"<div><div>During our continued expeditions in Mindanao Island of southern Philippines, a new species, <em>Etlingera lacerata</em> Naive, was discovered and is herein described and illustrated. Resembling <em>Etlingera amomoides</em> closely, it is easily distinguished by its turbinate spike with a tapering tip and a red labellum adorned with occasional white spots along the lacerate margin. This study includes a comprehensive species description, colored photographs, phenology, habitat details, geographical information, and a provisional conservation assessment for this new endemic <em>Etlingera</em> species. With this discovery, the total of known <em>Etlingera</em> species in the Philippines rises to 18, with 12 of them being endemic to the archipelago.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 764-768"},"PeriodicalIF":0.6,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-06DOI: 10.1016/j.japb.2024.08.007
Thanh Loan Nguyen , Hoang Danh Nguyen , Ngoc Han Vu , Minh Thiet Vu
Asteraceae (sunflower) is a large and diverse family of flowering plants that include numerous economically important and ornamental species. Thorough systematics research has identified 13 subfamilies within Asteraceae. However, some taxa still lack comprehensive genomic data, which hampers the understanding of relationships between these subfamilies. This study sequenced the complete plastome of Gymnanthemum amygdalinum from Vietnam. Additionally, plastomes of 16 Asteraceae species were newly assembled using existing whole genome sequencing data from GenBank. All 17 examined Asteraceae plastomes displayed a quadripartite structure, with lengths ranging from 151,340 bp to 153,670 bp. Of these, G. amygdalinum exhibited a loss of ndhF gene and an expansion of inverted repeat regions, resulting in a smaller small-single copy region. The large single-copy regions of the 16 Asteraceae plastomes, excluding D. popayanense from Barnadesioideae subfamily, showed two inversions: one between the trnE-UUC and trnG-UCC, and another between trnE-UUC and trnC-GCA regions. Our plastome-based phylogenetic analysis of 42 Asteraceae species supported the nuclear gene-based taxonomic classification. However, discrepancies were observed in the phylogenetic relationship among certain less abundant subfamilies. The newly obtained genomic data provide novel insights into the phylogenetic relationships across species in Asteraceae.
{"title":"Plastome sequencing of Gymnanthemum amygdalinum and phylogenetic analysis of 17 newly assembled Asteraceae plastomes","authors":"Thanh Loan Nguyen , Hoang Danh Nguyen , Ngoc Han Vu , Minh Thiet Vu","doi":"10.1016/j.japb.2024.08.007","DOIUrl":"10.1016/j.japb.2024.08.007","url":null,"abstract":"<div><div>Asteraceae (sunflower) is a large and diverse family of flowering plants that include numerous economically important and ornamental species. Thorough systematics research has identified 13 subfamilies within Asteraceae. However, some taxa still lack comprehensive genomic data, which hampers the understanding of relationships between these subfamilies. This study sequenced the complete plastome of <em>Gymnanthemum amygdalinum</em> from Vietnam. Additionally, plastomes of 16 Asteraceae species were newly assembled using existing whole genome sequencing data from GenBank. All 17 examined Asteraceae plastomes displayed a quadripartite structure, with lengths ranging from 151,340 bp to 153,670 bp. Of these, <em>G. amygdalinum</em> exhibited a loss of <em>ndhF</em> gene and an expansion of inverted repeat regions, resulting in a smaller small-single copy region. The large single-copy regions of the 16 Asteraceae plastomes, excluding <em>D. popayanense</em> from Barnadesioideae subfamily, showed two inversions: one between the <em>trnE-UUC</em> and <em>trnG-UCC</em>, and another between <em>trnE-UUC</em> and <em>trnC-GCA</em> regions. Our plastome-based phylogenetic analysis of 42 Asteraceae species supported the nuclear gene-based taxonomic classification. However, discrepancies were observed in the phylogenetic relationship among certain less abundant subfamilies. The newly obtained genomic data provide novel insights into the phylogenetic relationships across species in Asteraceae.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 820-826"},"PeriodicalIF":0.6,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-02DOI: 10.1016/j.japb.2024.08.005
Woong Ki , Jong-Ho Lee , Ki-Jeong Hong
It has been reported that young shoots of the Chinese fringetree (Chionanthus retusus Lindl. & Paxton), a roadside tree in Korea, deformed into cauliflower-like galls, causing stunted growth. The symptom is associated with the occurrence of an eriophyid mite belonging to the genus Aceria, which is identified as Aceria chionanthi sp. nov. This study provides descriptions and photographs of this new mite species.
{"title":"A new species of genus Aceria (Acari: Eriophyidae) on Chinese fringetree from Korea","authors":"Woong Ki , Jong-Ho Lee , Ki-Jeong Hong","doi":"10.1016/j.japb.2024.08.005","DOIUrl":"10.1016/j.japb.2024.08.005","url":null,"abstract":"<div><div>It has been reported that young shoots of the Chinese fringetree (<em>Chionanthus retusus</em> Lindl. & Paxton), a roadside tree in Korea, deformed into cauliflower-like galls, causing stunted growth. The symptom is associated with the occurrence of an eriophyid mite belonging to the genus <em>Aceria</em>, which is identified as <em>Aceria chionanthi</em> sp. nov. This study provides descriptions and photographs of this new mite species.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 810-813"},"PeriodicalIF":0.6,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-02DOI: 10.1016/j.japb.2024.02.007
Boo Hee Jung , Jinbae Seung
Four species of the genus Cis Latreille, 1796 are first reported from Korea: Cis nipponicus Chûjö, 1940, Cis rufocastaneus Nakane & Nobuchi, 1955, Cis seriatulus Kiesenwetter, 1879, and Cis taiwanus Chûjö, 1939. Redescriptions for the newly recorded species, a key to Korean Cis, photographs for diagnostic characters of adult, and ecological information on their host fungi are provided.
{"title":"Four new records of the genus Cis Latreille (Coleoptera: Ciidae) from Korea","authors":"Boo Hee Jung , Jinbae Seung","doi":"10.1016/j.japb.2024.02.007","DOIUrl":"10.1016/j.japb.2024.02.007","url":null,"abstract":"<div><div>Four species of the genus <em>Cis</em> Latreille, 1796 are first reported from Korea: <em>Cis nipponicus</em> Chûjö, 1940, <em>Cis rufocastaneus</em> Nakane & Nobuchi, 1955, <em>Cis seriatulus</em> Kiesenwetter, 1879, and <em>Cis taiwanus</em> Chûjö, 1939. Redescriptions for the newly recorded species, a key to Korean <em>Cis</em>, photographs for diagnostic characters of adult, and ecological information on their host fungi are provided.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 814-819"},"PeriodicalIF":0.6,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The incorporation of seed dispersal models into conservation practices plays a pivotal role in predicting future ecosystems. Seed dispersal significantly influences plant population dynamics; however, our understanding of its implications at a landscape scale remains limited. We investigated how different seed dispersal processes impact the distributions of individual species within a 20 km × 20 km plot centered around a temperate old-growth forest reserve in Japan. We hypothesized that random variation in seed dispersal (i.e., stochastic processes) and variation mediated by distance (i.e., deterministic processes) would explain landscape-scale species distributions more effectively than deterministic seed dispersal processes alone. We evaluated 16 tree species with different seed dispersal modes by simulating seed dispersal processes. Stochastic simulations predicted higher dispersal distances for the majority of species. The findings of this study suggest that stochastic simulations are a more reliable tool for identifying dispersal restrictions in the context of climate change and biodiversity loss, highlighting the significance of using stochastic simulations for analyzing seed dispersal patterns in temperate forests, rather than more conventional deterministic methods.
将种子扩散模型纳入保护实践对预测未来的生态系统起着至关重要的作用。种子扩散对植物种群动态有重大影响；然而，我们对其在景观尺度上的影响的了解仍然有限。我们研究了在以日本温带原始森林保护区为中心的 20 km × 20 km 小区内，不同的种子扩散过程如何影响单个物种的分布。我们假设，种子扩散的随机变化（即随机过程）和以距离为中介的变化（即确定性过程）将比单独的确定性种子扩散过程更有效地解释景观尺度的物种分布。我们通过模拟种子扩散过程，对 16 种具有不同种子扩散模式的树种进行了评估。随机模拟结果表明，大多数树种的扩散距离较长。这项研究的结果表明，随机模拟是在气候变化和生物多样性丧失的背景下识别扩散限制的一种更可靠的工具，突出了使用随机模拟分析温带森林中种子扩散模式而不是更传统的确定性方法的重要性。
{"title":"Effects of stochastic intraspecific seed dispersal variation on dispersal distance predictions in a temperate forest in Japan","authors":"Pavithra Rangani Wijenayake , Takashi Masaki , Akiko Hirata","doi":"10.1016/j.japb.2024.06.004","DOIUrl":"10.1016/j.japb.2024.06.004","url":null,"abstract":"<div><div>The incorporation of seed dispersal models into conservation practices plays a pivotal role in predicting future ecosystems. Seed dispersal significantly influences plant population dynamics; however, our understanding of its implications at a landscape scale remains limited. We investigated how different seed dispersal processes impact the distributions of individual species within a 20 km × 20 km plot centered around a temperate old-growth forest reserve in Japan. We hypothesized that random variation in seed dispersal (i.e., stochastic processes) and variation mediated by distance (i.e., deterministic processes) would explain landscape-scale species distributions more effectively than deterministic seed dispersal processes alone. We evaluated 16 tree species with different seed dispersal modes by simulating seed dispersal processes. Stochastic simulations predicted higher dispersal distances for the majority of species. The findings of this study suggest that stochastic simulations are a more reliable tool for identifying dispersal restrictions in the context of climate change and biodiversity loss, highlighting the significance of using stochastic simulations for analyzing seed dispersal patterns in temperate forests, rather than more conventional deterministic methods.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 800-806"},"PeriodicalIF":0.6,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-28DOI: 10.1016/j.japb.2024.06.003
Woo-Yuel Kim , Kang Chang Wan , Bing Gi Chang , Kim Eun Mi
This individual of Otus elgans was rescued on Udo Island located in the east of Jeju Island, the southernmost part of the Korean Peninsula, on January 4, 2007. It was found at 3° 32″ N, 2° 58′ E, which is the northernmost record among the habitats of Otus elegans. After that, we took photographs of its shape, recorded its calls, and analyzed them. While analyzing we confirmed that it is an unrecorded species in Korea. We classified the chick calls based on structural similarity on spectrograms (view range: 0–7.5 kHz; window length: 1 second). We measured it and the results are; weight: 86.7 g, total length: 210 mm, wing length: 170 mm, tail length: 68.0 mm, and Tarsus length: 25.13 mm. In addition, its vocalizations are structurally diverse: duration, ∼10 ms to 1.5 s; peak frequency (adults), <900 to >3000 Hz. Currently, it was found not only on Nansei Shoto, Minami-daito-jima, and Okino Islands in Japan but also on the Batanes Islands in eastern China and the Babuyan Islands. Moreover, assumed that it inhabits Okinoshima, lying beyond the known northern limit of distribution. Therefore, this study record demonstrates the attempt of O. elegans to move north even to Udo Island from the previous habitats.
{"title":"A record of the northernmost location of Otus elegans in the Pacific area","authors":"Woo-Yuel Kim , Kang Chang Wan , Bing Gi Chang , Kim Eun Mi","doi":"10.1016/j.japb.2024.06.003","DOIUrl":"10.1016/j.japb.2024.06.003","url":null,"abstract":"<div><div>This individual of <em>Otus elgans</em> was rescued on Udo Island located in the east of Jeju Island, the southernmost part of the Korean Peninsula, on January 4, 2007. It was found at 3° 32″ N, 2° 58′ E, which is the northernmost record among the habitats of <em>Otus elegans</em>. After that, we took photographs of its shape, recorded its calls, and analyzed them. While analyzing we confirmed that it is an unrecorded species in Korea. We classified the chick calls based on structural similarity on spectrograms (view range: 0–7.5 kHz; window length: 1 second). We measured it and the results are; weight: 86.7 g, total length: 210 mm, wing length: 170 mm, tail length: 68.0 mm, and Tarsus length: 25.13 mm. In addition, its vocalizations are structurally diverse: duration, ∼10 ms to 1.5 s; peak frequency (adults), <900 to >3000 Hz. Currently, it was found not only on Nansei Shoto, Minami-daito-jima, and Okino Islands in Japan but also on the Batanes Islands in eastern China and the Babuyan Islands. Moreover, assumed that it inhabits Okinoshima, lying beyond the known northern limit of distribution. Therefore, this study record demonstrates the attempt of <em>O. elegans</em> to move north even to Udo Island from the previous habitats.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 796-799"},"PeriodicalIF":0.6,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-26DOI: 10.1016/j.japb.2024.05.015
Eunji Kim , Il-Kwon Kim , Sumin Oh , Sunghoon Jung
The species of genus Hishimonus Ishihara were reviewed including two new records from Korea: H. bucephalus and H. expansivus. Morphological descriptions, photographs of habitus and genitalia for each species are given. A key to males of Korean Hishimonus is provided.
回顾了石原菱角属的物种，包括两个来自韩国的新记录：H. bucephalus 和 H. expansivus。文中给出了每个物种的形态描述、习性和生殖器照片。还提供了韩国虹鳟雄性的检索表。
{"title":"Taxonomic review of the genus Hishimonus Ishihara (Hemiptera: Auchenorrhyncha: Cicadellidae: Deltocephalinae) from Korea","authors":"Eunji Kim , Il-Kwon Kim , Sumin Oh , Sunghoon Jung","doi":"10.1016/j.japb.2024.05.015","DOIUrl":"10.1016/j.japb.2024.05.015","url":null,"abstract":"<div><div>The species of genus <em>Hishimonus</em> Ishihara were reviewed including two new records from Korea: <em>H. bucephalus</em> and <em>H. expansivus.</em> Morphological descriptions, photographs of habitus and genitalia for each species are given. A key to males of Korean <em>Hishimonus</em> is provided.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 760-763"},"PeriodicalIF":0.6,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-26DOI: 10.1016/j.japb.2024.07.002
Joon-Yong Park, Kee-Jeong Ahn
Mimogonellus japonicus (Naomi) and Thoracophorus (Thoracophorus) certatus Sharp are identified for the first time in the Korean peninsula. The genera Mimogonellus Fagel and Thoracophorus Motschulsky are also new records to the Korean fauna. Diagnoses and illustrations of the habitus and diagnostic characters of these two species are provided to facilitate identification.
{"title":"Mimogonellus Fagel and Thoracophorus Motschulsky (Coleoptera: Staphylinidae: Osoriinae) new to Korea","authors":"Joon-Yong Park, Kee-Jeong Ahn","doi":"10.1016/j.japb.2024.07.002","DOIUrl":"10.1016/j.japb.2024.07.002","url":null,"abstract":"<div><div><em>Mimogonellus japonicus</em> (Naomi) and <em>Thoracophorus</em> (<em>Thoracophorus</em>) <em>certatus</em> Sharp are identified for the first time in the Korean peninsula. The genera <em>Mimogonellus</em> Fagel and <em>Thoracophorus</em> Motschulsky are also new records to the Korean fauna. Diagnoses and illustrations of the habitus and diagnostic characters of these two species are provided to facilitate identification.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 807-809"},"PeriodicalIF":0.6,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-19DOI: 10.1016/j.japb.2024.05.014
Andriy Kovalchuk
Through the analysis of male-song characteristics in Isophya camptoxypha (Fieber), a Curve-tailed plump bush-cricket species prevalent in the highlands of the Alps and the Carpathians, this study establishes that acoustic signals not only serve for species identification among closely related counterparts but also contribute to biogeographical assumptions and constructions. The investigation delves into the formation of a relict locality on Stinka Mountain, situated at the junction of two Carpathian biogeographical regions. Additionally, the research explores the implications of using different types of microphones for bioacoustic measurements.
{"title":"Geographical variation in Isophya camptoxypha (Orthoptera, Tettigoniidae) male songs: Part 1—Solo performance across different microphones","authors":"Andriy Kovalchuk","doi":"10.1016/j.japb.2024.05.014","DOIUrl":"10.1016/j.japb.2024.05.014","url":null,"abstract":"<div><div>Through the analysis of male-song characteristics in <em>Isophya camptoxypha</em> (Fieber), a Curve-tailed plump bush-cricket species prevalent in the highlands of the Alps and the Carpathians, this study establishes that acoustic signals not only serve for species identification among closely related counterparts but also contribute to biogeographical assumptions and constructions. The investigation delves into the formation of a relict locality on Stinka Mountain, situated at the junction of two Carpathian biogeographical regions. Additionally, the research explores the implications of using different types of microphones for bioacoustic measurements.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 748-759"},"PeriodicalIF":0.6,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Among dioecious species, the differential strategy of resource allocation between male and female plants is depicted in their life-history traits and reproductive features. This is classified as sexual dimorphism. The strategies of resource allocation along with the habitat of these species pose an impact on their pollination mechanism and reproductive success. Zanthoxylum armatum DC (Rutaceae) is a small tree with wide economic and medicinal value. The species is naturally distributed in tropical parts of India and other countries. Due to overexploitation of natural populations in India, the species is rapidly declining. To restore the population of the species in the wild and establish commercial plantations, detailed knowledge of its reproductive biology is essential. Thus, the present study was conducted in natural population of Z. armatum growing in the union territory of Jammu and Kashmir, India. The study revealed sex-biased allocation and sexual dimorphism both in vegetative and reproductive traits. Such traits include more height and higher number of shoots, inflorescences, and flowers in male plants than in female plants. The natural populations of Z. armatum exhibit a male-biased sex ratio, and such biasness appears to be the outcome of resource allocation strategies and other demographic characteristics. Species possibly exhibit presence of ambophilous suite, i.e., a combination of wind and insect pollination in floral features. However, pollen dispersal by wind is up to limited distance, and thus wind may or may not be effective in fruit-set.
{"title":"Sexual dimorphism and pollination mechanism of Zanthoxylum armatum, a vulnerable medicinally important dioecious tree","authors":"Renu Sharma , Yash Mangla , Pratibha Magotra , Namrata Sharma","doi":"10.1016/j.japb.2024.06.007","DOIUrl":"10.1016/j.japb.2024.06.007","url":null,"abstract":"<div><div>Among dioecious species, the differential strategy of resource allocation between male and female plants is depicted in their life-history traits and reproductive features. This is classified as sexual dimorphism. The strategies of resource allocation along with the habitat of these species pose an impact on their pollination mechanism and reproductive success. <em>Zanthoxylum armatum</em> DC (Rutaceae) is a small tree with wide economic and medicinal value. The species is naturally distributed in tropical parts of India and other countries. Due to overexploitation of natural populations in India, the species is rapidly declining. To restore the population of the species in the wild and establish commercial plantations, detailed knowledge of its reproductive biology is essential. Thus, the present study was conducted in natural population of <em>Z. armatum</em> growing in the union territory of Jammu and Kashmir, India. The study revealed sex-biased allocation and sexual dimorphism both in vegetative and reproductive traits. Such traits include more height and higher number of shoots, inflorescences, and flowers in male plants than in female plants. The natural populations of <em>Z. armatum</em> exhibit a male-biased sex ratio, and such biasness appears to be the outcome of resource allocation strategies and other demographic characteristics. Species possibly exhibit presence of ambophilous suite, i.e., a combination of wind and insect pollination in floral features. However, pollen dispersal by wind is up to limited distance, and thus wind may or may not be effective in fruit-set.</div></div>","PeriodicalId":37957,"journal":{"name":"Journal of Asia-Pacific Biodiversity","volume":"17 4","pages":"Pages 739-747"},"PeriodicalIF":0.6,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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