An investigation of taxon boundaries in rare and range-restricted Synaphea (Proteaceae: Conosperminae) species from south-west Western Australia

2014 ◽  
Vol 27 (2) ◽  
pp. 119
Author(s):  
R. Butcher ◽  
K. R. Thiele
Keyword(s):  
Western Australia ◽  
Conservation Status ◽  
Iucn Red List ◽  
Land System ◽  
European Settlement ◽  
Iucn Red List Categories ◽  
South West ◽  
Subsequent Publication ◽  
High Conservation ◽  
Data Deficient

The Swan Coastal Plain of south-west Western Australia has been extensively cleared since European settlement, with the fertile Pinjarra Plain land system preferentially cleared for grazing; what remains of the native vegetation is of high conservation value despite being highly fragmented and often degraded. The following six taxa of Synaphea R.Br. (Proteaceae), with conservation status corresponding to IUCN Red List categories Threatened and Data Deficient, are restricted to vegetation remnants in this region: S. stenoloba A.S.George, S. odocoileops A.S.George, S. sp. Pinjarra (R. Davis 6578), S. sp. Fairbridge Farm (D. Papenfus 696), S. sp. Pinjarra Plain (A.S. George 17182) and S. sp. Serpentine (G.R. Brand 103). Taxonomic boundaries among these morphologically similar taxa of Synaphea were investigated using morphometric analyses based on characters of leaves, inflorescences, flowers and fruits. Results allow the circumscription of the four informally named taxa from this complex, which will enable their formal description in a subsequent publication. They also provide support for several morphologically closely related taxa, including the provisional distinction of S. sp. Udumung (A.S. George 17058) from close ally S. decorticans Lindl. Two described species (S. odocoileops and S. stenoloba) and several anomalous specimens could not be adequately resolved in these analyses, and further investigation of their boundaries using molecular markers is required.

scholarly journals Conservation Status of Brachycephalus Toadlets (Anura: Brachycephalidae) from the Brazilian Atlantic Rainforest

Diversity ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 150
Author(s):  
Marcos R. Bornschein ◽  
Marcio R. Pie ◽  
Larissa Teixeira
Keyword(s):  
Conservation Status ◽  
Iucn Red List ◽  
Critically Endangered ◽  
Atlantic Rainforest ◽  
Minimum Convex Polygon ◽  
Iucn Red List Categories ◽  
Data Deficient ◽  
Polygon Method ◽  
Official Recognition ◽  
Brazilian Atlantic Rainforest

The number of described anurans has increased continuously, with many newly described species determined to be at risk. Most of these new species inhabit hotspots and are under threat of habitat loss, such as Brachycephalus, a genus of small toadlets that inhabits the litter of the Brazilian Atlantic Rainforest. Of 36 known species, 22 were described in the last decade, but only 11 have been assessed according to the IUCN Red List categories, with just one currently listed as Critically Endangered. All available data on occurrence, distribution, density, and threats to Brachycephalus were reviewed. The species extent of occurrence was estimated using the Minimum Convex Polygon method for species with three or more records and by delimiting continuous areas within the altitudinal range of species with up to two records. These data were integrated to assess the conservation status according to the IUCN criteria. Six species have been evaluated as Critically Endangered, five as Endangered, 10 as Vulnerable, five as Least Concern, and 10 as Data Deficient. Deforestation was the most common threat to imperiled Brachycephalus species. The official recognition of these categories might be more readily adopted if the microendemic nature of their geographical distribution is taken into account.

Validation of the name Mitreola crystallina (Loganiaceae), a new species endemic to southwestern China

Phytotaxa ◽  
2020 ◽  
Vol 471 (2) ◽  
pp. 139-144
Author(s):  
JIAN-RONG YOU ◽  
JUAN RAN ◽  
CHENG LIU ◽  
YU-MIN SHUI ◽  
JIA-XIANG LI ◽  
...  
Keyword(s):  
New Species ◽  
Southwest China ◽  
Conservation Status ◽  
Corolla Tube ◽  
Iucn Red List ◽  
Red List ◽  
Key To Species ◽  
Iucn Red List Categories ◽  
Data Deficient ◽  
A New Species

Mitreola crystallina was proposed in 2006, but not valid. Here, we validate the name by giving a complete description, diagnosis, and illustration as a new species of Loganiaceae. Morphologically, it is most similar to M. pedicellata, but can be distinguished by its stems erect (vs. creeping), corolla lobes blue (vs. white), and stamens inserted at or near base of the corolla tube (vs. middle to nearly mouth of corolla tube). It is endemic to the shady cliffs of limestone forests of Malipo County, southwest China. The conservation status was assessed as data deficient (DD) according to the IUCN Red List categories and criteria. And a key to species of Mitreola in China is provided.

scholarly journals The conservation status of West Indian palms (Arecaceae)

Oryx ◽  
2007 ◽  
Vol 41 (3) ◽  
pp. 300-305 ◽  
Author(s):  
Scott Zona ◽  
Raúl Verdecia ◽  
Angela Leiva Sánchez ◽  
Carl E. Lewis ◽  
Mike Maunder
Keyword(s):  
Conservation Status ◽  
West Indian ◽  
Field Studies ◽  
Iucn Red List ◽  
Critically Endangered ◽  
Ex Situ ◽  
Conservation Action ◽  
Iucn Red List Categories ◽  
Conservation Projects ◽  
Data Deficient

AbstractThe conservation status of 134 species, subspecies and varieties of West Indian palms (Arecaceae) is assessed and reviewed, based on field studies and current literature. We find that 90% of the palm taxa of the West Indies are endemic. Using the IUCN Red List categories one species is categorized as Extinct, 11 taxa as Critically Endangered, 19 as Endangered, and 21 as Vulnerable. Fifty-seven taxa are classified as Least Concern. Twenty-five taxa are Data Deficient, an indication that additional field studies are urgently needed. The 11 Critically Endangered taxa warrant immediate conservation action; some are currently the subject of ex situ and in situ conservation projects in the region’s botanical gardens. We recommend that preliminary conservation assessments be made of the 25 Data Deficient taxa so that conservation measures can be implemented for those facing imminent threats.

Development and application of procedures to identify and conserve threatened ecological communities in the South-west Botanical Province of Western Australia

1999 ◽  
Vol 5 (2) ◽  
pp. 124 ◽  
Author(s):  
V. English ◽  
J. Blyth
Keyword(s):  
Western Australia ◽  
Conservation Status ◽  
Ecological Communities ◽  
The South ◽  
Data Set ◽  
Minimum Data ◽  
South West ◽  
Community Types ◽  
Data Deficient ◽  
A Tec

A two year project was conducted to: (i) produce definitions, criteria and procedures for identifying threatened ecological communities (TECs) and assigning them to categories that define conservation status; (ii) develop a minimum data set for allocating TECs to one of these categories; (iii) establish a database and enter on it TECs, and associated data, of the South-west Botanical Province of Western Australia; and (iv) assess each community and make recommendations for actions to conserve them. The procedures described allow assessment of whether a particular biological assemblage can be described as an ecological community, and whether it meets the definitions and criteria for a TEC. ''Threatened'' (with destruction) includes ''totally destroyed", "critically endangered (CRl", "endangered (EN)" and ''vulnerable (VU)". Ecological communities that do not meet the criteria as ''threatened'' may be classified "data deficient" if there is insufficient information to assign a category, or "lower risk" if the community is not under significant threat. Other assemblages are termed "not evaluated". The terminology, categories and criteria are adapted from those recommended for threatened species by the World Conservation Union (IUCN). Thirty-eight ecological communities, including those based on assemblages of terrestrial and aquatic plants, cave and mound-spring invertebrates, and structure-forming microbes were entered on the database. Of these, 16 were assessed as CR, seven as EN, ten as VU and five as data deficient. The project established methods that are applicable to data on a broad range of community types at a broad range of scales. It also initiated many recovery actions including preparation of interim recovery plans, land acquisition, fencing, weed control and public liaison. Such actions are intended to cause allocation of communities to a lower category of threat when reevaluated against the criteria.

scholarly journals Global extinction risk for seahorses, pipefishes and their near relatives (Syngnathiformes)

Oryx ◽  
2021 ◽  
pp. 1-10
Author(s):  
Riley A. Pollom ◽  
Gina M. Ralph ◽  
Caroline M. Pollock ◽  
Amanda C.J. Vincent
Keyword(s):  
Threatened Species ◽  
Habitat Degradation ◽  
Extinction Risk ◽  
Conservation Status ◽  
Field Research ◽  
Selective Extraction ◽  
Iucn Red List ◽  
Point Estimate ◽  
Conservation Action ◽  
Data Deficient

Abstract Few marine taxa have been comprehensively assessed for their conservation status, despite heavy pressures from fishing, habitat degradation and climate change. Here we report on the first global assessment of extinction risk for 300 species of syngnathiform fishes known as of 2017, using the IUCN Red List criteria. This order of bony teleosts is dominated by seahorses, pipefishes and seadragons (family Syngnathidae). It also includes trumpetfishes (Aulostomidae), shrimpfishes (Centriscidae), cornetfishes (Fistulariidae) and ghost pipefishes (Solenostomidae). At least 6% are threatened, but data suggest a mid-point estimate of 7.9% and an upper bound of 38%. Most of the threatened species are seahorses (Hippocampus spp.: 14/42 species, with an additional 17 that are Data Deficient) or freshwater pipefishes of the genus Microphis (2/18 species, with seven additional that are Data Deficient). Two species are Near Threatened. Nearly one-third of syngnathiformes (97 species) are Data Deficient and could potentially be threatened, requiring further field research and evaluation. Most species (61%) were, however, evaluated as Least Concern. Primary threats to syngnathids are (1) overexploitation, primarily by non-selective fisheries, for which most assessments were determined by criterion A (Hippocampus) and/or (2) habitat loss and degradation, for which assessments were determined by criterion B (Microphis and some Hippocampus). Threatened species occurred in most regions but more are found in East and South-east Asia and in South African estuaries. Vital conservation action for syngnathids, including constraining fisheries, particularly non-selective extraction, and habitat protection and rehabilitation, will benefit many other aquatic species.

scholarly journals A new species (Begonia giganticaulis) of Begoniaceae from southern Xizang (Tibet) of China

PhytoKeys ◽  
2021 ◽  
Vol 187 ◽  
pp. 189-205
Author(s):  
Dai-Ke Tian ◽  
Wen-Guang Wang ◽  
Li-Na Dong ◽  
Yan Xiao ◽  
Min-Min Zheng ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Conservation Status ◽  
Female Flower ◽  
Iucn Red List ◽  
Red List ◽  
Current Data ◽  
Iucn Red List Categories ◽  
Unique Shape ◽  
A New Species

Begonia giganticaulis, a huge new species in Begonia sect. Platycentrum of Begoniaceae from southern Xizang (Tibet) of China, is described. Morphologically, it is mostly similar to B. longifolia and B. acetosella, but clearly differs from the former mainly by its dioecious and taller plants, sparse hairs on abaxial veins, longer inflorescence, unique shape of fruits, and differs from the latter mainly by its late and longer flowering time, 6-tepals of female flower and 3-loculed ovary. The phylogenetic analyses also support the separation of the new species from other taxa. Based on the current data, its conservation status is assigned to Endangered (B2a) according to the IUCN Red List Categories and Criteria.

Recent Progress in Taxonomic Studies, Biogeographic Analysis, and Revised Checklist of Amphibians in Indochina

2021 ◽  
Vol 28 (3A) ◽  
pp. 1-110
Author(s):  
Nikolay A. Poyarkov ◽  
Tan Van Nguyen ◽  
Evgeniy S. Popov ◽  
Peter Geissler ◽  
Parinya Pawangkhanant ◽  
...  
Keyword(s):  
Conservation Status ◽  
Distribution Patterns ◽  
Iucn Red List ◽  
Type Specimens ◽  
Amphibian Species ◽  
Biogeographic Patterns ◽  
South Vietnam ◽  
Data Deficient ◽  
Iucn Red List Criteria ◽  
Annotated Checklist

The Indochinese Peninsula is recognized as one of the key global biodiversity hotspots. The amphibian fauna of Indochina (including Vietnam, Laos, Cambodia and Thailand) is one of the richest in the world. About 60% of the known species were described within the last 20 years. We review the literature and our data to assess all recent discoveries and taxonomic changes and compile the first annotated checklist of the amphibian fauna of Indochina since the middle of the 20th century, including updated faunal lists for Vietnam and Thailand. Amphibian checklists for Laos and Cambodia are published for the first time. For each species we provide the following information: scientific name; recommended common name in English; information on type specimens; type locality; data on its distribution within Indochina and beyond; IUCN conservation status; taxonomic comment and the most important references. We review the distribution of each species across the 23 biogeographic subregions of Indochina, estimate the similarity among the regional faunas and evaluate their species richness and endemism. In total we record 423 amphibian species belonging to three orders, 11 families and 71 genera; 199 species (47%) are endemic to Indochina. Comprising 270 known species, the amphibian fauna of Vietnam is the richest (98 endemics, 36.3%), followed by Thailand with 194 species (29 endemics, 14.9%), Laos with 121 species (13 endemics, 10.7%), and Cambodia with 72 species (6 endemics, 8.3%). A cluster analysis of faunal similarity between the subregions shows two major assemblages, divided by the Isthmus of Kra. Within the northern mainland portion of Indochina three clusters can be distinguished: (1) northeastern and northwestern uplands of Vietnam and northern Laos; (2) Northern, Central, and Southern Annamites, the Bolaven Plateau, and central-south Vietnam lowlands; (3) western Indochinese subregions. We identify the Northeast and Northwest Uplands of Vietnam, the Northern, Central and Southern Annamites, the Cardamom Mountains, the mountains of Northeast Thailand, Northern Tenasserim and southern Peninsular Thailand as nine major centers of diversity and endemism of Indochinese amphibians. The analysis of amphibian distribution patterns across Indochina suggests the presence of 14 chorotypes grouped in five major range types. Our results underline the role of Indochina as a key area for amphibian diversity and conservation. Among 423 species of Indochinese amphibians, 152 species (35.9%) were considered as data deficient (DD) or were not evaluated (NE) according to the IUCN Red List criteria; while 76 species (18.0%) were considered vulnerable (VU), endangered (EN) or critically endangered (CR), 20 species (4.7%) were considered to be near threatened (NT), and 175 species (41.4%) to be of the least concern (LC). Our study thus has implications for further conservation efforts on regional and global levels, as well as for understanding the biogeographic patterns of amphibian richness and endemism in Asia.

scholarly journals Review of the status and conservation of tenrecs (Mammalia: Afrotheria: Tenrecidae)

Oryx ◽  
2019 ◽  
pp. 1-10 ◽  
Author(s):  
P. J. Stephenson ◽  
Voahangy Soarimalala ◽  
Steven M. Goodman ◽  
Martin E. Nicoll ◽  
Vonjy Andrianjakarivelo ◽  
...  
Keyword(s):  
Conservation Status ◽  
Iucn Red List ◽  
Conservation Priorities ◽  
Incidental Capture ◽  
The Status ◽  
Conservation Actions ◽  
Data Deficient ◽  
Essential Knowledge ◽  
Development Objectives ◽  
Near Future

Abstract The mammal family Tenrecidae (Afrotheria: Afrosoricida) is endemic to Madagascar. Here we present the conservation priorities for the 31 species of tenrec that were assessed or reassessed in 2015–2016 for the IUCN Red List of Threatened Species. Six species (19.4%) were found to be threatened (4 Vulnerable, 2 Endangered) and one species was categorized as Data Deficient. The primary threat to tenrecs is habitat loss, mostly as a result of slash-and-burn agriculture, but some species are also threatened by hunting and incidental capture in fishing traps. In the longer term, climate change is expected to alter tenrec habitats and ranges. However, the lack of data for most tenrecs on population size, ecology and distribution, together with frequent changes in taxonomy (with many cryptic species being discovered based on genetic analyses) and the poorly understood impact of bushmeat hunting on spiny species (Tenrecinae), hinders conservation planning. Priority conservation actions are presented for Madagascar's tenrecs for the first time since 1990 and focus on conserving forest habitat (especially through improved management of protected areas) and filling essential knowledge gaps. Tenrec research, monitoring and conservation should be integrated into broader sustainable development objectives and programmes targeting higher profile species, such as lemurs, if we are to see an improvement in the conservation status of tenrecs in the near future.

Taxonomy of Atlantic Central African orchids 3. A new species of Bulbophyllum Thouars (Orchidaceae) from the Monts de Cristal, Gabon

Phytotaxa ◽  
2014 ◽  
Vol 177 (1) ◽  
pp. 26 ◽  
Author(s):  
Tariq Stévart ◽  
Jean Philippe Biteau ◽  
Valérie Cawoy ◽  
Vincent Droissart
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Leaf Shape ◽  
Central Africa ◽  
Iucn Red List ◽  
Preliminary Assessment ◽  
Iucn Red List Categories ◽  
Lowland Forests ◽  
Distinguishing Features ◽  
A New Species

Two specimens of an apparently new Bulbophylum species were found in the Monts de Cristal, Gabon. They have a unique leaf shape among the species of this genus in Continental Africa. The flower shares the general morphology of Bulbophyllum saltatorium, one of the most common members of Bulbophyllum in Central Africa. Eight other taxa of the Continental African Bulbophyllum possess unifoliate pseudobulbs and long hairs on the lip. Comparison with them indicates that the new collections from Gabon represent a distinctive species, not yet known in the genus. We describe it here as Bulbophyllum pauwelsianum. The distinguishing features of the species include its leaves, which are pendant, coriaceous, linear, semiterete and v-shaped in transverse section, and its sepals, which possess relatively long hairs on their margins. A table of the taxonomic treatments of the nine Continental African Bulbophyllum taxa considered here is included. A taxonomic key and a table of the diagnostic characters of these nine taxa are given to facilitate identification. The new species is restricted to lowland forests of the Monts de Cristal in Gabon. A preliminary assessment of the conservation status, using the IUCN Red List Categories and Criteria is provided.

scholarly journals Overview of the conservation status of Australian frogs

2006 ◽  
Vol 12 (4) ◽  
pp. 313 ◽  
Author(s):  
Jean-Marc Hero ◽  
Clare Morrison ◽  
Graeme Gillespie ◽  
J. Dale Roberts ◽  
David Newell ◽  
...  
Keyword(s):  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Individual Species ◽  
Amphibian Species ◽  
Current Conservation ◽  
World Conservation ◽  
Iucn Red List Categories ◽  
Threatening Processes ◽  
Red List Categories

A review of the current conservation status of Australian amphibians was recently completed as part of a World Conservation Union (IUCN) sponsored Global Amphibian Assessment (GAA). Fifty of 216 amphibian species (23%) in Australia are now recognized as threatened or extinct in accord with IUCN Red List Categories and Criteria. Here we report on the categories and criteria under which individual species qualified for listing and provide a summary of supporting information pertaining to population and distribution declines. Major threatening processes contributing to listing of species are also reviewed.

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