scholarly journals Abundance and diversity of threatened birds in Nangal Wetland, Punjab, India

2021 ◽  
Vol 13 (12) ◽  
pp. 19733-19742
Author(s):  
Rajwinder Kaur ◽  
Onkar Singh Brraich
Keyword(s):  
Land Reclamation ◽  
Bird Species ◽  
Industrial Effluents ◽  
Iucn Red List ◽  
Red List ◽  
Wetland Ecosystems ◽  
Iucn Red List Categories ◽  
Abundance And Diversity ◽  
Laws And Policies ◽  
Anthropogenic Threats

Anthropogenic threats to wetland ecosystems, including discharge of industrial effluents, municipal sewerage, land reclamation, erosion and deforestation, have contributed to the rapid declines in populations of many bird species. The present study aimed to document avian diversity, including birds on the IUCN Red List, at Nangal Wetland, Punjab from February 2013 to January 2015. A total of 155 species belonging to 48 families (resident and migratory) under 17 orders were recorded, of which 13 come under various IUCN Red List categories: one ‘Endangered’—Egyptian Vulture Neophron percnopterus; five ‘Vulnerable’—Common Pochard Aythya ferina, Greater-Spotted Eagle Aquila clanga, Sarus Crane Grus antigone, Lesser White-Fronted Goose Anser erythropus, and Woolly-necked Stork Ciconia episcopus; and seven ‘Near Threatened’—Ferruginous Duck Aythya nyroca, River Lapwing Vanellus duvaucelii, Indian River Tern Sterna aurantia, Painted Stork Mycteria leucocephala, Oriental Darter Anhinga melanogaster, Blossom-headed Parakeet Psittacula roseata, and Alexandrine Parakeet Psittacula eupatria. The Shannon-Weaver index of diversity was highest during winter (H’= 1.9) followed by autumn (H’= 1.9) then spring (H’= 1.5), and was lowest during summer (H’= 1.4). Though this wetland is highly productive and provides homes to many threatened species, untreated industrial effluents from adjoining areas sometimes create problems. The discharge of pollutants should be stopped through strict enforcement of environmental laws and policies. 

scholarly journals Birds in Wetland Ecosystems of Ayodhya District, Uttar Pradesh

2021 ◽  
pp. 92-102
Author(s):  
. Yashmita-Ulman
Keyword(s):  
Bird Species ◽  
Uttar Pradesh ◽  
Iucn Red List ◽  
Red List ◽  
Conservation Value ◽  
Wetland Ecosystems ◽  
Point Counts ◽  
Number Of Species ◽  
Fixed Radius ◽  
Order Passeriformes

This study was carried out in the wetlands across Ayodhya District, Uttar Pradesh using fixed radius point counts, to understand the diversity and distribution of birds in these ecosystems. A total of 102 bird species belonging to 35 families and 12 orders were recorded from the study area. Amongst the order, Passeriformes (24 and 12) had the maximum number of species and families. The highest number of species recorded were Carnivores (44 species, 43%). A total of 61 bird species (60%) were resident, 41 bird species (40%) were winter visitors and ten species were in the threatened category of IUCN Red List (2021) which highlights the conservation value of wetland ecosystems in Ayodhya District, Uttar Pradesh.

Rates of Movement of Threatened Bird Species between IUCN Red List Categories and toward Extinction

2008 ◽  
Vol 22 (2) ◽  
pp. 417-427 ◽  
Author(s):  
M. de L. BROOKE ◽  
S.H.M. BUTCHART ◽  
S.T. GARNETT ◽  
G.M. CROWLEY ◽  
N.B. MANTILLA-BENIERS ◽  
...  
Keyword(s):  
Bird Species ◽  
Iucn Red List ◽  
Red List ◽  
Iucn Red List Categories ◽  
Red List Categories

scholarly journals Quantifying anthropogenic threats to orchids using the IUCN Red List

AMBIO ◽  
2017 ◽  
Vol 47 (3) ◽  
pp. 307-317 ◽  
Author(s):  
Jenna Wraith ◽  
Catherine Pickering
Keyword(s):  
Iucn Red List ◽  
Red List ◽  
Anthropogenic Threats

Ischaemum mistryi (Poaceae: Andropogoneae): A new remarkable species from Sub-Tropical Evergreen Forest, India

Phytotaxa ◽  
2021 ◽  
Vol 509 (3) ◽  
Author(s):  
SHAHID NAWAZ LANDGE ◽  
RAJENDRA D. SHINDE
Keyword(s):  
New Species ◽  
Detailed Comparison ◽  
Iucn Red List ◽  
Red List ◽  
Evergreen Forest ◽  
Short Discussion ◽  
Iucn Red List Categories ◽  
Tropical Evergreen Forest ◽  
Sessile Spikelet ◽  
A New Species

Ischaemum mistryi, a new species from the Sub-Tropical evergreen forest of Tilari Ghat, Maharashtra, India, is described and illustrated. This grass is unique with its leaves drooping, mostly congregated near the base, basal sheath villous, culms compressed at the base, lower glume of the sessile spikelet linear-lanceolate to oblongish tapering and slightly curled upwards, without a sub-apical ridge, nodules absent (if present 2–4 obscure) on its keels, and upper lemma of sessile spikelet bi-partite. Morphologically it is somewhat similar to I. mangaluricum, I. travancorense and I. barbatum. We provided a table of its detailed comparison with close species as mentioned above. According to IUCN Red List Categories and Criteria, we have assessed this new species as Critically Endangered (CR). The photo plates and illustration of the grass are given to facilitate its proper identification. A short discussion is also provided at the end.

scholarly journals Miconia rheophytica (Melastomataceae: Miconieae), a new and endangered species from the Magdalena Medio region of Colombia

Phytotaxa ◽  
2018 ◽  
Vol 371 (1) ◽  
pp. 55
Author(s):  
JUAN MAURICIO POSADA-HERRERA ◽  
FRANK ALMEDA
Keyword(s):  
Endangered Species ◽  
Iucn Red List ◽  
Red List ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Leaf Surfaces ◽  
Red List Categories ◽  
Bright Blue ◽  
Lanceolate Leaf

Miconia rheophytica is described, illustrated, and compared with presumed relatives in the Octopleura clade. It is distinguished by its narrowly elliptic to ovate-lanceolate leaf blades with entire to subentire margins that have evenly spaced spreading smooth eglandular trichomes 0.8−1.4 mm long, an indumentum of dendritic trichomes with short axes and terete radiating arms on distal internodes, adaxial petiole surfaces, and primary and secondary veins on abaxial leaf surfaces, unribbed hypanthia that are constricted and tapered distally below the torus and covered with a mixture of basally roughened trichomes and dendritic trichomes with short axes, anthers with two ± truncate apical pores, eglandular anther appendages, 3-locular ovary, and berries that are bright blue at maturity. It is known only from flash-flooded riverbanks in three river canyons in the Magdalena Medio region of Antioquia, Colombia. A conservation assessment of “Endangered” is recommended for this species based on IUCN Red List Categories and Criteria.

scholarly journals Primulina silaniae sp. nov. (Gesneriaceae) from the limestone area of Guizhou Province, China

PhytoKeys ◽  
2021 ◽  
Vol 185 ◽  
pp. 123-130
Author(s):  
Jin-Quan Zhang ◽  
Hong Huang ◽  
Mei-Jun Li ◽  
Mei Huang ◽  
Quan-Yuan Li ◽  
...  
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Guizhou Province ◽  
New Taxon ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Primulina silaniae X.X.Bai & F.Wen, a new species of Primulina Hance (Gesneriaceae) from the limestone area of Wangmo County, Guizhou Province, is described and illustrated. The new species is similar to P. spiradiclioides Z.B.Xin & F.Wen, but can be easily distinguished from the latter by a combination of characteristics, especially in the lateral veins of its leaf and floral shape and tube. At present, three populations in one locality of this new taxon were found, totaling about 600 mature individuals. According to the IUCN Red List Categories and Criteria (Version 3.1), the species is provisionally assessed as Vulnerable [VU D1].

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.

scholarly journals Odontochilus putaoensis (Cranichideae, Orchidaceae), a new species from Myanmar

PhytoKeys ◽  
2018 ◽  
Vol 103 ◽  
pp. 19-26 ◽  
Author(s):  
Ye Lwin Aung ◽  
Aye Thin Mu ◽  
Xiaohua Jin
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Identification Key ◽  
Conservation Assessment ◽  
Asian Species ◽  
Iucn Red List Categories ◽  
Light Yellow ◽  
Red List Categories ◽  
A New Species

Odontochilusputaoensis, a new species of Orchidaceae, is described and illustrated from Putao Township, Kachin State, Myanmar.Odontochilusputaoensisis close toO.duplex, but can be easily distinguished from the latter by having a light yellow lip, a bisaccate hypochile with a small, erect, blade-like and emarginate callus within each sac, a mesochile with a pair of dentate-pectinate flanges and a bilobed epichile with a pair of widely diverging lobes that are erect and concave. An identification key to the Southeast Asian species ofOdontochilusand colour photographs ofO.putaoensisare provided. A preliminary conservation assessment according to the IUCN Red List Categories and Criteria is given for the new species.

Liparis popaensis (Orchidaceae), a new species from Myanmar

Phytotaxa ◽  
2019 ◽  
Vol 413 (1) ◽  
pp. 67-70 ◽  
Author(s):  
AYE THIN MU ◽  
YE LWIN AUNG ◽  
XIAOHUA JIN
Keyword(s):  
New Species ◽  
National Park ◽  
Iucn Red List ◽  
Red List ◽  
Identification Key ◽  
Conservation Assessment ◽  
Iucn Red List Categories ◽  
Red List Categories ◽  
A New Species

Liparis popaensis, a new species of Orchidaceae, is described from Popa Mountain National Park, central Myanmar. Liparis popaensis is morphologically similar to L. odorata but it differs from the latter by having oblong-lanceolate dorsal sepal, column with two triangular wings and lip with a pair of subconical and basally adjoining calli at its base. Identification key and colour photographs are provided. A preliminary conservation assessment according to the IUCN Red List Categories and Criteria is given for the new species.

scholarly journals The dynamics underlying avian extinction trajectories forecast a wave of extinctions

2019 ◽  
Vol 15 (12) ◽  
pp. 20190633 ◽  
Author(s):  
Melanie J. Monroe ◽  
Stuart H. M. Butchart ◽  
Arne O. Mooers ◽  
Folmer Bokma
Keyword(s):  
Extinction Risk ◽  
Population Decline ◽  
Bird Species ◽  
Iucn Red List ◽  
Red List ◽  
Extinction Rate ◽  
Critically Endangered Species ◽  
Extinction Rates ◽  
Historical Times ◽  
Risk Categories

Population decline is a process, yet estimates of current extinction rates often consider just the final step of that process by counting numbers of species lost in historical times. This neglects the increased extinction risk that affects a large proportion of species, and consequently underestimates the effective extinction rate. Here, we model observed trajectories through IUCN Red List extinction risk categories for all bird species globally over 28 years, and estimate an overall effective extinction rate of 2.17 × 10 −4 /species/year. This is six times higher than the rate of outright extinction since 1500, as a consequence of the large number of species whose status is deteriorating. We very conservatively estimate that global conservation efforts have reduced the effective extinction rate by 40%, but mostly through preventing critically endangered species from going extinct rather than by preventing species at low risk from moving into higher-risk categories. Our findings suggest that extinction risk in birds is accumulating much more than previously appreciated, but would be even greater without conservation efforts.

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