Webbia Pub Date : 2022-12-15 DOI: 10.36253/jopt-13193

Bernard Peter Olanga Daipan, Inocencio E. BUOT JR., N. Pampolina

{"title":"Evaluating the species distribution patterns of the genus Saurauia Willd. in the Philippines using geospatial analysis","authors":"Bernard Peter Olanga Daipan, Inocencio E. BUOT JR., N. Pampolina","doi":"10.36253/jopt-13193","DOIUrl":"https://doi.org/10.36253/jopt-13193","url":null,"abstract":"Understanding the species distribution patterns of endemic and threatened species is very useful for conservation planning and actions. However, research on the distribution of many important and often overlooked species in the country, such as the Saurauia, is extremely limited. This paper provided an overview of the distribution patterns of Saurauia species across the Philippine archipelago based solely on the existing digital checklist of vascular plants. Specifically, the study produced distribution maps of the 56 endemic Saurauia species and determined their climatic distribution ranges. The methods involved geospatial and geoprocessing analysis in a geographic information system (GIS) environment. The findings showed that 29 Saurauia species are currently distributed in a single province, whereas seven (7) species have only been recorded in a certain region. Furthermore, 35 species was found to have a single type of climate. The Saurauia species identified in this paper that have only a single provincial or regional distribution record and are restricted to a single type of climate are recommended for conservation because they are mostly likely to be affected by environmental and climatic changes. Finally, the information and data derived in this paper could serve as a baseline for assessing conservation status, habitat modelling studies, species-level conservation planning, and understanding climate change impacts.","PeriodicalId":39391,"journal":{"name":"Webbia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47769152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ancient woodland indicator species: can old herbarium specimens supplement recent records to inform ecological management? 古林地指示物种:旧植物标本馆标本能否补充近期记录，为生态管理提供信息?

Webbia Pub Date : 2022-12-15 DOI: 10.36253/jopt-13400

K. Hemmings

{"title":"Ancient woodland indicator species: can old herbarium specimens supplement recent records to inform ecological management?","authors":"K. Hemmings","doi":"10.36253/jopt-13400","DOIUrl":"https://doi.org/10.36253/jopt-13400","url":null,"abstract":"Old herbarium specimens have become increasingly well-recognised as a rich source of ecological baseline data. For long-continuity plant communities, such as ancient woodland, these records may be particularly important for present day ecological management. To evaluate this potential, searches for pre-1950 Ancient Woodland Indicator (AWI) herbarium specimens collected in East Gloucestershire, UK, were conducted using digital open access sources and the physical Royal Agricultural University herbarium. In total 305 specimens were retrieved from twelve herbaria, with small regional collections being particularly important sources. The earliest specimen dated to 1834. There was a significant association between old specimen availability and year of collection, due to a peak in the late-1800s and early-1900s. Over half of the AWI species for the region were represented, although some taxonomic bias was evident. To determine if old AWI specimens contributed any new location records, 246 unique specimens with detailed georeferences were mapped and compared to the locations of 1950-1999 and 2000-2021 biological records. One third of the pre-1950 specimens had not been recorded in the same locality since collection of the old specimen, indicating either a gap in recent records or floristic change. However, length of time since specimen collection was not a predictor of a 1950-2000 or 2000-2021 record in the same locality. Overall, it is highly recommended that policy-makers, land managers, and field surveyors consult old AWI herbarium records for ancient woodland identification, management, and restoration.","PeriodicalId":39391,"journal":{"name":"Webbia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44378339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wurfbainia rubrofasciata (Zingiberaceae), a new species from Palawan, Philippines 菲律宾巴拉望的一个新种——红叶姜（姜科）

Webbia Pub Date : 2022-12-15 DOI: 10.36253/jopt-13461

R. Docot, Carl Bryan M. Domingo, Cecilia B. Moran, L.M. Camangeg, A. Poulsen

引用次数: 0

Micro-morphological characters in Polypodiaceae and its taxonomic significance 水蛭科植物微形态特征及其分类学意义

Webbia Pub Date : 2022-12-15 DOI: 10.36253/jopt-13570

Sinjini Mondal, S. Moktan

引用次数: 0

Monograph of tribe Sipaneeae (Rubiaceae, Ixoroideae). A Neotropical group with its center of diversity on the Guiana Shield 藤科植物志。圭亚那地盾上以多样性为中心的新热带群落

Webbia Pub Date : 2022-11-16 DOI: 10.36253/jopt-13963

P. Delprete

{"title":"Monograph of tribe Sipaneeae (Rubiaceae, Ixoroideae). A Neotropical group with its center of diversity on the Guiana Shield","authors":"P. Delprete","doi":"10.36253/jopt-13963","DOIUrl":"https://doi.org/10.36253/jopt-13963","url":null,"abstract":"The tribe Sipaneeae (subfamily Ixoroideae) includes the genera Chalepophyllum (3 spp.), Dendrosipanea (3 spp.), Limnosipanea (3 spp.), Maguireothamnus (3 spp.), Neblinathamnus (2 spp.), Neobertiera (5 spp.), Pteridocalyx (1 sp.), Sipanea (17 spp.), Sipaneopsis (8 spp.), and Steyermarkia (1 sp.), for a total of 44 species. This tribe has its center of diversity on the Guiana Shield (northern South America), where 9 of the 10 genera occur. Only Sipanea and Limnosipanea are also present on the Brazilian Shield and the Orinoquía Region with a total of 4 species, while Steyermarkia, Sipanea and Limnosipanea are present in Central America with one species each. The genera Sipaneopsis, Chalepophyllum, and Dendrosipanea are endemic to white sand areas of the Amazon Basin. The habit in the tribe Sipaneeae ranges from herbs (terrestrial, amphibian or rarely aquatic), subshrubs, shrubs to treelets. Within the tribe, Chalepophyllum, Dendrosipanea, Neobertiera, Pteridocalyx and Sipanea are heterostylous, while the other genera are homostylous. Several recent articles have been dedicated to the description of new species in this tribe, and only Limnosipanea spruceana var. macrantha is newly described here. In the present work 21 names are newly typified; a list of these names is present at the end of the taxonomic treatment. For all the taxa of this tribe, full synonymy, typification, description, ecological observations, geographic distribution, illustrations, IUCN conservation assessment, and cited specimens are provided.","PeriodicalId":39391,"journal":{"name":"Webbia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45174220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Studies on Schismatoglottideae (Araceae) of Borneo LXXIII - Schismatoglottis auyongii [Calyptrata Clade], a new species for the Penrissen Range, Sarawak 婆罗洲天南星科的研究LXXIII-砂拉越Penrissen山脉的一个新种——奥永天南星

Webbia Pub Date : 2022-04-20 DOI: 10.36253/jopt-12256

Wong Sin Yeng, P. Boyce

引用次数: 0

Studies on Schismatoglottideae (Araceae) of Borneo LXVIII: Bucephalandra adei, a new species from Kalimantan, Indonesian Borneo 婆罗洲天南星科植物的研究——LXVIII：印尼婆罗洲加里曼丹的一个新种——蟾蜍

Webbia Pub Date : 2022-04-20 DOI: 10.36253/jopt-12167

Wong Sin Yeng, P. Boyce, Adeline Y.M. Hii

引用次数: 0

Prain’s Erycibe (Convolvulaceae) types 赤藓属(旋花科)类型

Webbia Pub Date : 2022-04-20 DOI: 10.36253/jopt-12014

I. Turner, Ananda Kumar