Justicia cordifolia, a new combination in Brazilian Acanthaceae 

Phytotaxa ◽  
2021 ◽  
Vol 494 (1) ◽  
pp. 165-169
Author(s):  
LUÍS ADRIANO FUNEZ ◽  
DENISE MONTE BRAZ
Keyword(s):  
Conservation Status ◽  
Species Conservation ◽  
New Combination ◽  
Iucn Criteria

Sericographis cordifolia is reinstated and a new combination Justicia cordifolia is proposed when transferred to Justicia. Additionally, a detailed morphologic description for this species, field photographs, taxonomic and nomenclatural comments, and species conservation status assessed according to IUCN criteria are provided.

Apios chendezhaoana (Fabaceae), an overlooked species and a new combination from China: evidence from morphological and molecular analyses

Phytotaxa ◽  
2018 ◽  
Vol 371 (1) ◽  
pp. 1
Author(s):  
FAN ZHANG ◽  
SI FENG ◽  
JIANJUN ZHOU ◽  
RONG ZHANG ◽  
LINHAN LIU ◽  
...  
Keyword(s):  
Endangered Species ◽  
South China ◽  
Phylogenetic Analyses ◽  
Conservation Status ◽  
New Combination ◽  
Molecular Evidence ◽  
Distribution Map ◽  
Molecular Analyses ◽  
Iucn Criteria

Apios chendezhaoana, a new combination derived from Sinolegumenea chendezhaoana, is recognized by both morphological and molecular evidence. It is a new member within Apios, and it is also an endemic and endangered species from East and South China. Phylogenetic analyses indicate that it could be sister to A. fortunei, but morphologically it differs from all its allies by its broad triangular leaflets with caudate apices, white corolla, pink markings on the lower part of the keel, and dilated style with tufted hairs beneath the stigma. We provide a detailed description, photographs, illustrations, and distribution map. We also estimate its conservation status according to IUCN criteria. A key to Apios is also provided, together with a brief revision.

A Reassessment of the Little-Known Amazonian Fern Diplazium praestans Based on Molecular and Morphological Evidence

2021 ◽  
Vol 46 (2) ◽  
pp. 260-272
Author(s):  
Lindsey Riibe ◽  
Michael Sundue ◽  
Emily Sessa ◽  
Weston Testo
Keyword(s):  
Sequence Data ◽  
Conservation Status ◽  
Morphological Characters ◽  
New Combination ◽  
Morphological Evidence ◽  
Neotropical Species ◽  
Chloroplast Markers ◽  
Close Relationship ◽  
The Relationship ◽  
Iucn Criteria

Abstract— Family- and genus-level circumscription of ferns in the suborder Aspleniineae (eupolypods II) has long been controversial, due in part to confusion about the relationship among the families Aspleniaceae and Athyriaceae. Recent studies have demonstrated that character states traditionally used to infer a close relationship between these two families are either symplesiomorphic or homoplastic, and re-examination of numerous taxa has led to the recircumscription of several clades, and the description of several new families and genera. In light of these findings, we re-evaluated the taxonomic affinities of Diplazium praestans, a little-known fern from western Amazonia that is morphologically disparate to the remainder of Neotropical Diplazium. Using sequence data from three chloroplast markers and analysis of eight morphological characters, we demonstrate that Diplazium praestans was erroneously placed in that genus and instead is a Hymenasplenium. We place it in a phylogenetic context, reassess its morphology in light of our findings, evaluate its conservation status under IUCN criteria, and provide a new combination: Hymenasplenium praestans. We also provide an updated key to the Neotropical species of Hymenasplenium and discuss unresolved taxonomic problems in the genus.

scholarly journals Giant otter Pteronura brasiliensis density and abundance in Llanos Orientales de Colombia in the Orinoco basin

Oryx ◽  
2020 ◽  
pp. 1-4
Author(s):  
Germán Garrote ◽  
Beyker Castañeda ◽  
Jose Manuel Escobar ◽  
Laura Pérez ◽  
Brayan Marín ◽  
...  
Keyword(s):  
South America ◽  
Population Size ◽  
20Th Century ◽  
Conservation Status ◽  
Species Conservation ◽  
Iucn Red List ◽  
Red List ◽  
Recreational Fishing ◽  
Pteronura Brasiliensis ◽  
Direct Counts

Abstract The giant otter Pteronura brasiliensis, categorized as Endangered on the IUCN Red List, was once widely distributed throughout South America. By the middle of the 20th century the giant otter had become locally extinct along the main rivers of the Orinoco basin. Although some populations seem to have recovered, the paucity of information available does not permit a full evaluation of the species' conservation status. The objective of this study was to estimate the abundance and density of the giant otter population along the Orinoco river in the municipality of Puerto Carreño, Vichada, Colombia, where there is important commercial and recreational fishing. Thirty-nine linear km were surveyed, repeatedly, with a total of 315 km of surveys. Population size was estimated by direct counts of individuals. All individuals detected were photographed and identified individually from their throat pelage patterns. In total, 30 otters were identified, giving a minimum density of 0.77 individuals per km, one of the highest reported for the species in Colombia. Given the high density in this well-developed area, our results highlight the importance of this population for the conservation of the species.

Two new species of Impatiens (Balsaminaceae) from the Western Ghats, India

Phytotaxa ◽  
2018 ◽  
Vol 334 (3) ◽  
pp. 233 ◽  
Author(s):  
BINCE MANI ◽  
SINJUMOL THOMAS ◽  
S. JOHN BRITTO
Keyword(s):  
New Species ◽  
Western Ghats ◽  
Pollen Morphology ◽  
Conservation Status ◽  
Species Conservation ◽  
Diagnostic Characters ◽  
Two New Species ◽  
The Western Ghats

Impatiens saulierea and I. josephia, two new species, are described from the Western Ghats, India. The former is collected from Kakkayam, Kozhikode and the latter from Idukki, Kerala. A detailed description of both taxa along with diagnostic characters between allied species, conservation status, pollen morphology and colour photographs are provided.

A refined circumscription of Notobubon striatum and the resurrection of Dregea collina Ecklon & Zeyher (Apiaceae, Apioideae)

Phytotaxa ◽  
2016 ◽  
Vol 266 (1) ◽  
pp. 27 ◽  
Author(s):  
ANTHONY R. MAGEE ◽  
ODETTE E. CURTIS ◽  
B-E. VAN WYK
Keyword(s):  
Conservation Status ◽  
Leaf Size ◽  
Type Specimen ◽  
Distinct Species ◽  
Critically Endangered ◽  
Type Material ◽  
New Combination ◽  
Careful Examination ◽  
Field Surveys ◽  
Extensive Field

Extensive field surveys of the Critically Endangered Central and Eastern Rûens Shale Renosterveld have uncovered that Notobubon striatum, as currently circumscribed, comprises two distinct species. Upon careful examination of the type material it has become clear that names exist for both species. The type specimen of N. striatum clearly matches the lesser known species, a large shrub, ca. 1 m. tall, with a powerful anise-scent and which is restricted to the banks of seasonal rivers and watercourses in the Central and Eastern Rûens Shale Renosterveld. The second and better known entity, with a wider distribution, corresponds to the type material of Dregea collina Ecklon & Zeyher. As such, a new combination, Notobubon collinum (Ecklon & Zeyher) Magee, is here made to accommodate this taxon, restricted to dry quartz and silcrete patches or outcrops in Eastern Rûens Shale Renosterveld. In their revised circumscriptions N. striatum and N. collinum are readily distinguished by habit, scent, leaf size and division, as well as leaf lobe shape and sepal size. Comprehensive descriptions of both species are provided, together with notes on their ecology and conservation status, and the existing key to the species of Notobubon updated. This brings the number of recognised species in the genus to thirteen.

scholarly journals Rediscovery of Scorzonera amasiana Hausskn. and Bornm. - A threatened endemic species in Turkey

1970 ◽  
Vol 36 (2) ◽  
pp. 139-144 ◽  
Author(s):  
Fergan Karaer ◽  
Ferhat Celep
Keyword(s):  
Endemic Species ◽  
Human Impacts ◽  
Conservation Status ◽  
The Other ◽  
Conservation Strategies ◽  
Small Populations ◽  
Distribution Map ◽  
Type Specimens ◽  
Current Conservation ◽  
Iucn Criteria

Scorzonera amasiana Hausskn. and Bornm. was described from type specimens collected by J.F.N. Bornmueller in 1889 but it was not collected again until 1993, when it was found near Amasya, Turkey. Populations of S. amasiana were quite small at that limited locations and were vulnerable to human impacts. Therefore, suitable conservation strategies should be developed immediately in order to protect the species from probable extinction. Here, an additional three small populations are reported. Brief history, morphology, habitat and ecology of this endemic species have been discussed. Its current conservation status was reevaluated with respect to the latest IUCN criteria. A key to distinguish it from the other closely related Turkish species is also provided and its distribution map is appended.   Key words: Endangered, Rediscovery, Scorzonera, Turkey DOI = 10.3329/bjb.v36i2.1502 Bangladesh J. Bot. 36(2): 139-144, 2007 (December)

Paracarphalea, a new genus of the coffee family segregated from the Malagasy endemic genus Carphalea (Rubiaceae, Rubioideae, Knoxieae)

Phytotaxa ◽  
2016 ◽  
Vol 263 (2) ◽  
pp. 98 ◽  
Author(s):  
JULIA FERM ◽  
JESPER KÅREHED ◽  
BIRGITTA BREMER ◽  
SYLVAIN G. RAZAFIMANDIMBISON
Keyword(s):  
Bayesian Methods ◽  
Type Species ◽  
New Genus ◽  
Sequence Data ◽  
Conservation Status ◽  
Endemic Genus ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
Iucn Criteria

The Malagasy genus Carphalea (Rubiaceae) consists of six species (C. angulata, C. cloiselii, C. kirondron, C. linearifolia, C. madagascariensis, C. pervilleana) of shrubs or small trees and is recognizable by a distinctly lobed calyx, 2(–4)-locular ovaries, each locule with several ovules on a rod-like stalk arising from the base of the locule, and indehiscent fruits. Carphalea linearifolia, rediscovered in 2010, has not previously been included in any Rubiaceae molecular phylogenetic studies. We re-investigated the monophyly of Carphalea using sequence data from chloroplast (rps16 and trnT-F) and nuclear (ITS and ETS) markers analysed with parsimony and Bayesian methods. Carphalea linearifolia forms a clade with C. cloiselii and the type species C. madagascariensis. This clade is sister to a clade consisting of the rest of the Carphalea species plus the genus Triainolepis. According to these results, the new genus Paracarphalea is here described to accommodate Carphalea angulata, C. kirondron, and C. pervilleana. The conservation status of Carphalea linearifolia is assessed as critically endangered according to IUCN criteria.

scholarly journals Conservation-Status Gaps for Marine Top-Fished Commercial Species

Fishes ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 2
Author(s):  
Imanol Miqueleiz ◽  
Rafael Miranda ◽  
Arturo Hugo Ariño ◽  
Elena Ojea
Keyword(s):  
Fish Species ◽  
Conservation Status ◽  
Species Conservation ◽  
Biodiversity Loss ◽  
Vulnerability Index ◽  
Iucn Red List ◽  
Red List ◽  
Commercial Fish ◽  
Commercial Species ◽  
Marine Realm

Biodiversity loss is a global problem, accelerated by human-induced pressures. In the marine realm, one of the major threats to species conservation, together with climate change, is overfishing. In this context, having information on the conservation status of target commercial marine fish species becomes crucial for assuring safe standards. We put together fisheries statistics from the FAO, the IUCN Red List, FishBase, and RAM Legacy databases to understand to what extent top commercial species’ conservation status has been assessed. Levels of assessment for top-fished species were higher than those for general commercial or highly commercial species, but almost half of the species have outdated assessments. We found no relation between IUCN Red List traits and FishBase Vulnerability Index, depreciating the latter value as a guidance for extinction threat. The RAM database suggests good management of more-threatened species in recent decades, but more data are required to assess whether the trend has reverted in recent years. Outdated IUCN Red List assessments can benefit from reputed stock assessments for new reassessments. The future of IUCN Red List evaluations for commercial fish species relies on integrating new parameters from fisheries sources and improved collaboration with fisheries stakeholders and managers.

scholarly journals Conservation of food tree species in Niger: towards a participatory approach in rural communities

2016 ◽  
Vol 25 (3) ◽  
pp. e080 ◽  
Author(s):  
Dolores Agúndez Leal ◽  
Soumana Douma ◽  
Javier Madrigal ◽  
Almudena Gómez-Ramos ◽  
Barbara Vicenti ◽  
...  
Keyword(s):  
Rural Communities ◽  
Conservation Status ◽  
Management Strategies ◽  
Species Conservation ◽  
Woody Species ◽  
Human Consumption ◽  
Factors Affecting ◽  
Ecological Regions ◽  
Food Species ◽  
And Gender

Aim of study: Indigenous woody species play an important role as a complement on the diet of rural populations in Niger, especially in periods of food scarcity. However, these species are nowadays overexploited and management programmes are necessary to conserve them. In order to design a conservation programme for edible woody species, this paper presents a sociological analysis about the use of edible woody species and their products during shortage periods in Niger.Area of study: Four villages in two distinct agro-ecological regions were selected to conduct structured enquiries based on focus group discussions and surveys with key informants.Material and Methods: Perceptions of the conservation status of these species were identified; as well the factors affecting food values, perceptions, management and collection practices.Main results: Results show that B. senegalensis was a staple food in the driest areas, and M. crassifolia was used for fodder and human consumption in the most critical situations. The local communities related the drivers of species conservation status specific to the agro-ecological regions, and gender and ethnic differences were also identified.Research highlights: Understanding these factors constitutes a first step towards adaptive management strategies for the conservation of woody food species in rural communities of Niger.Keywords: Africa; biodiversity; cultural preferences; food; NTFPs.

scholarly journals Minimum time required to detect population trends: the need for long-term monitoring programs

2018 ◽  
Author(s):  
Easton R White
Keyword(s):  
Time Series ◽  
Statistical Power ◽  
Conservation Status ◽  
Species Conservation ◽  
Population Data ◽  
Iucn Red List ◽  
Series Length ◽  
Large Variability ◽  
Monitoring Programs

Long-term time series are necessary to better understand population dynamics, assess species' conservation status, and make management decisions. However, population data are often expensive, requiring a lot of time and resources. What is the minimum population time series length required to detect significant trends in abundance? I first present an overview of the theory and past work that has tried to address this question. As a test of these approaches, I then examine 822 populations of vertebrate species. I show that 72% of time series required at least 10 years of continuous monitoring in order to achieve a high level of statistical power. However, the large variability between populations casts doubt on commonly used simple rules of thumb, like those employed by the IUCN Red List. I argue that statistical power needs to be considered more often in monitoring programs. Short time series are likely under-powered and potentially misleading.

Sign in / Sign up

Export Citation Format

Share Document