scholarly journals Status and Trends of the Ferruginous Duck’s (Aythya nyroca) Wintering Population in Morocco: Analysis of 35 Years of Winter Census Data (1983-2017)

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Asmaâ Ouassou ◽  
Mohamed Dakki ◽  
Saïd Lahrouz ◽  
Mohammed Aziz El Agbani ◽  
Abdeljebbar Qninba
Keyword(s):  
Census Data ◽  
Iucn Red List ◽  
Distribution Area ◽  
Strong Increase ◽  
Small Reservoir ◽  
North West ◽  
Inland Wetlands ◽  
Regional Population ◽  
Near Threatened ◽  
Wintering Population

The Ferruginous duck is a winter visitor and breeding resident in Morocco. The species breeds regularly in several coastal and inland wetlands, with remarkable numbers in some marshlands (Sidi Boughaba, Fouwarate, Bargha, Bas Loukkos, etc.). This duck is listed as near threatened in the IUCN Red List, and its populations have been in decline in many European countries. In Morocco, the national wintering population has known, during the last decade, a strong increase, in both its numbers (from tens to thousands of individuals) and distribution area (from a couple of sites to more than 21 wetlands). The North-West region of Morocco has been hosting regularly, during the last decade, between 31 and 91% of the Moroccan wintering population, which is mainly concentrated in two marshlands: Merja de Fouwarate and Merja de Sidi Boughaba. A small reservoir, Barrage Hassar, recently created in the Centre-Atlantic region, has also been, in recent years, one of the most important wintering sites of the species. 15 wetlands have hosted, at least once during the last decade, more than 1% of the regional population of “West Mediterranean/North and West Africa”. This work is an important step to a better knowledge of the Ferruginous duck’s population. This knowledge is the basis for adopting adequate measures for the conservation of the species at the national and international level.

scholarly journals Checklist of the coral fish fauna of Xisha Islands, China

2021 ◽  
Vol 9 ◽  
Author(s):  
Shuting Qiu ◽  
Bin Chen ◽  
Jianguo Du ◽  
Kar-Hoe Loh ◽  
Jianji Liao ◽  
...  
Keyword(s):  
Fish Fauna ◽  
Iucn Red List ◽  
Red List ◽  
Distribution Area ◽  
Visual Census ◽  
Underwater Visual Census ◽  
Xisha Islands ◽  
Xisha Archipelago ◽  
Coral Fish ◽  
Near Threatened

The Xisha Islands are composed of the Yongle Islands and the Xuande Islands in Hainan Province, China. It has one of the highest species diversity in the world and is also a typical oceanic distribution area of coral reefs globally. The ichthyofauna of the Xisha Islands were recorded by underwater visual census in May 2019 and July 2020. The survey data were combined with previous records of species into the checklist of the Xisha Islands presented herein. A total of 691 species, belonging to 24 orders and 97 families, was recorded. The major families were Labridae, Pomacentridae, Serranidae, Chaetodontidae, Hexanchidae, Lutjanidae, Scaridae, Gobiidae, Scorpaenidae and Carangidae. In this study, the Coral Fish iversity Index (CFDI) of six families (Chaetodontidae, Pomacanthidae, Pomacentridae, Labridae, Scaridae and Acanthuridae) was 229, indicating 756 coral fishes. In terms of the IUCN Red List, one species is Critically Endangered (Glyphis gangeticus), six species are Endangered (Stegostoma fasciatum, Aetomylaeus maculatus, Aetomylaeus vespertilio, Epinephelus akaara, Cheilinusundulatus sp. and Xiphias gladius), 16 species are Vulnerable, and 13 species are Near Threatened in the Xisha Archipelago, so conservation should be strengthened in this area in the future. One species is a new record for China (Dischistodus pseudochrysopoecilus) and 23 species are newly found in the Xisha Islands.

scholarly journals Avifaunal records from Chalis Ek, North Andaman Island: insights into distribution of some Andaman Island birds

Check List ◽  
2013 ◽  
Vol 9 (1) ◽  
pp. 34 ◽  
Author(s):  
Pankaj Koparde ◽  
Manchi Shirish S.
Keyword(s):  
Southeast Asia ◽  
Anthropogenic Disturbance ◽  
New Records ◽  
Single Species ◽  
Iucn Red List ◽  
Red List ◽  
Andaman Island ◽  
Spatiotemporal Scale ◽  
Near Threatened

Species records are important for assessing the distribution and status of species over a spatiotemporal scale. Andaman archipelago, off Southeast Asia, is a high avian endemism area, covering an area of >5000 km2. We conducted this survey in 2011 to make an inventory of avifauna of Chalis Ek area. A total of 73 species, belonging to 61 genera and 34 families were recorded, of which 60 were resident, 11 were winter migrants, one vagrant, and a single species introduced from mainland India. Three species were found to be new records, expanding distribution. Thirteen were endemic to the Andaman and Nicobar group of islands and eleven were listed as near threatened in the IUCN Red List. This study shows that sites such as Chalis Ek, even though subject to moderate anthropogenic disturbance, still hosts a large and distinctive avifauna and should be protected.

scholarly journals Particularities of the Soil Layers in the Catchment of the Stemnic (Buda)

2016 ◽  
Vol 10 (1) ◽  
pp. 141-150
Author(s):  
Ioan Bojoagă
Keyword(s):  
Chemical Properties ◽  
Point Of View ◽  
Distribution Area ◽  
Catchment Basin ◽  
Quality Class ◽  
North West ◽  
The Third ◽  
West Part ◽  
Form Part ◽  
Agricultural Use

Abstract The Stemnic river (Buda) is a right side affluent of Bârlad river, with the surface of the catchment basin of 15,662.5 ha. Situated in the central part of the Central Moldavian Plateau, the catchment of the Stemnic (Buda) is characterized by an oblong form (30.5 km, respectively 8.5 km), having a lithologic homogeneity, but also by a diversity of the superficial deposits (eluvia, diluvia, colluvia and proluvia, alluvia). The fields in the catchment basin of the Stemnic (Buda) have been analyzed from the point of view of the soils’ quality, that have been classified into five quality classes. Besides the intrinsic characteristics of the soils, their classification included also the pedo-chemical properties of the lands, geomorphologic or climatic properties of the area. First, second and the third quality classes are predominant in the lower half of the catchment basin, less fragmentary, with prolonged cuesta reverses, corresponding to the distribution area of the chernosols. The lands that form part of the fourth quality class are distributed, in a great percentage, on the same types of soil, but represent greater constrains because of the abrupt cliffs. The fourth class is made up of the lands with severe limitations that reduce the range of agricultural crops or that need special measures or work in order to protect and ameliorate the soil’s resources. This class cumulates a percentage of 9%, being characteristic for the area affected by landslides, prevalent mainly in North-West part of the catchment of the Stemnic (Buda). In the fifth class there are included soils with major constrains for agricultural use. From this perspective, in the catchment, there are predominant the soils in the third quality class (37%), being followed by the second class (26%) and the first class (23%). The main limitative factors for the agricultural production of the lands in the catchment of the Stemnic (Buda) are the erosion in surface, the landslides, humidity excess and the small quantity of nutritive elements.

scholarly journals New and rare lichens and allied fungi from Arkhangelsk region, North-West Russia

2020 ◽  
Vol 57 ◽  
pp. 85-100
Author(s):  
Viktoria Tarasova ◽  
Liudmila Konoreva ◽  
Mikhail Zhurbenko ◽  
Tatiana Pystina ◽  
Sergei Chesnokov ◽  
...  
Keyword(s):  
Iucn Red List ◽  
Red List ◽  
European Part ◽  
North West ◽  
Red Data Book ◽  
Arkhangelsk Region ◽  
European Part Of Russia ◽  
Data Book ◽  
The Russian Federation ◽  
First Time

Thirty-one lichen-forming fungi, 12 lichenicolous fungi, and 5 non-lichenized fungi are reported as new for Arkhangelsk Region; 7 species are new for its mainland area. Micarea fallax is reported for the first time for Russia; M. laeta and M. pusilla are new for the European part of Russia. The second finding of Nicropuncta rugulosa for Russia is recorded; microconidia are first observed in this species. The records of ten species which have been included in the new edition of the Red Data Book of the Arkhangelsk Region (2020) are presented. Nephromopsis laureri from the Red Data Book of the Russian Federation (2008) and Leptogium rivulare from the IUCN Red List are reported for the first time for Arkhangelsk Region.

scholarly journals Justicia thailandica, a new species of Acanthaceae from Thailand

PhytoKeys ◽  
2019 ◽  
Vol 124 ◽  
pp. 11-22
Author(s):  
Yi Tong ◽  
Yunfei Deng
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Seed Morphology ◽  
Red List ◽  
Length Ratio ◽  
A New Species ◽  
Near Threatened

A new species of Justicia (Acanthaceae), J.thailandica, is described and illustrated from Thailand. The new species belongs to Justiciasect.Harnieria and is similar to J.quadrifaria and J.championii, but differs on account of the obviously densely white indumentum in the inflorescence bracts and calyx, ovate leaf blades with margin usually entire, spathulate inflorescence bracts and length ratio of calyx to mature capsule. It is assessed to be “Near threatened” (NE) according to IUCN Red List Category and Criteria. Pollen and seed morphology characters are also reported. Species of Justiciasect.Harnieria in Thailand are discussed and a key to the three recognized species is presented.

scholarly journals Inventarisasi dan Status Konservasi Herpetofauna di Punggualas, Taman Nasional Sebangau

2020 ◽  
Vol 2 (1) ◽  
pp. 1-5
Author(s):  
Andri Maulidi ◽  
Muhammad Rizki ◽  
Yohanes Edy Gunawan ◽  
Rabiatul Adawiyah ◽  
Yosua Yosua ◽  
...  
Keyword(s):  
Iucn Red List ◽  
Red List ◽  
Near Threatened

Informasi tentang herpetofauna di Punggualas, Taman Nasional Sebangau telah dilakukan pada tahun 2015. Tujuan dari penelitian ini adalah untuk menginventarisasi jenis-jenis herpetofauna setelah empat tahun dari data terakhir di Punggualas, Taman Nasional Sebangau. Metode yang digunakan dalam penelitian ini adalah Visual Encountered Survey (VES) selama empat hari di sepanjang transek Kahiu dan Metarius. Hasil penelitian menunjukkan bahwa terdapat 11 spesies yang terinventarisasi yang terdiri dari delapan spesies reptile (7 famili) dan tiga spesies amfibi (3 famili). Temuan ini lebih sedikit dibandingkan literatur pada tahun 2015 yaitu sebanyak 33 spesies yang terdiri dari 17 spesies reptile (13 famili) dan 16 spesies amfibi (4 famili). Hal ini dikarenakan perbedaan luas daerah pengamatan, lama pengamatan, metode, jumlah orang pengamat, dan tingkat keahlian pengamat. Lima spesies ditemukan pada penelitian ini yang belum ditemukan pada tahun 2015 yaitu Homalopsis buccata, Ahaetulla prasina, Cyrtodactylus sp., Siebenrockiella crassicollis, dan Notochelys platynota. Terkait dengan status, 28 spesies herpetofauna berstatus Least Concern, tiga spesies berstatus Vulnerable, dan satu spesies berstatus Near Threatened. Enam spesies lainnya belum memiliki status konservasi di IUCN Red List. Perlu dilakukan penelitian berikutnya tentang jumlah populasi dan pengamatan pada daerah yang lebih luas.     

scholarly journals Population densities of the Black-faced Cotinga Conioptilon mcilhennyi in south-east Peru

2000 ◽  
Vol 10 (3) ◽  
pp. 277-285 ◽  
Author(s):  
Huw Lloyd
Keyword(s):  
Bird Communities ◽  
Population Estimates ◽  
Population Densities ◽  
Swamp Forest ◽  
Madre De Dios ◽  
Regional Population ◽  
Forest Mosaic ◽  
Lowland Rainforest ◽  
Seasonally Flooded ◽  
Near Threatened

Population densities of the near-threatened Black-faced Cotinga Conioptilon mcilhennyi were investigated during a 21-month survey of lowland rainforest bird communities in Madre de Dios, south-east Peru. Surveys for the species were conducted at two locations along the Río Madre de Dios. C. mcilhennyi is more abundant in old floodplain/seasonally flooded swamp forest mosaic habitat than in seasonally flooded swamp forest. Regional population estimates along the Río Madre de Dios, Río Parramanu and Río de las Piedras range from 1,153 to 2,178 individuals. Current threats to this species and its habitat are discussed along with several conservation recommendations, including the proposal that the newly designated Parc Nacional Bahuaja-Sonene or existing Zona Reservada de Tambopata-Candamo are expanded to encompass suitable Black-faced Cotinga habitat.

scholarly journals Near Threatened Fishes of the World: Malapterurus teugelsi Norris, 2002 (Siluriformes: Malapteruridae)

2018 ◽  
Vol 6 (2) ◽  
pp. 1
Author(s):  
Felix Koffi KONAN ◽  
Charles Koffi BOUSSOU ◽  
Yves Kotchi BONY ◽  
Mexmin Koffi KONAN ◽  
Edia Oi EDIA ◽  
...  
Keyword(s):  
River Basin ◽  
Reproductive Biology ◽  
Local Population ◽  
Cultural Representation ◽  
Distribution Area ◽  
Mining Activities ◽  
Fishing Pressure ◽  
The World ◽  
Threatened Fishes ◽  
Near Threatened

Malapterurus teugelsi Norris, 2002, an endemic electric catfishes of the Kogon River Basin in Guinea, is assessed as Near Threatened due to its restricted distribution area, fishing pressure, mining activities, loss of habitats and aquatic pollution. This fish has a high cultural representation in the folklore of the local population. Moreover, in addition to its very limited distribution, very little information exists on its reproductive biology and its food ecology. Therefore, singular care must be paid to it for its conservation.

A new grass frog with rupicolous tadpoles from northern Zambia (Anura: Ptychadenidae)

Zootaxa ◽  
2018 ◽  
Vol 4462 (3) ◽  
pp. 349
Author(s):  
ALAN CHANNING ◽  
FRANK WILLEMS
Keyword(s):  
New Species ◽  
Population Size ◽  
Dna Sequences ◽  
Iucn Red List ◽  
Red List ◽  
Advertisement Call ◽  
Limited Extent ◽  
Iucn Red List Criteria ◽  
A New Species ◽  
Near Threatened

We describe a new species of Ptychadena from Mutinondo Wilderness in northern Zambia. It has rupicolous tadpoles that develop in a film of water. The species is distinguished on morphology, advertisement call and DNA sequences from other grass frogs and was found to be most closely related to P. broadleyi. It has no contrasting longitudinal bands on the posterior thigh, the foot is longer than half SVL, it has no light triangle on the snout, three phalanges of the fourth toe free of web and the snout has no skin folds. The species should be considered Near Threatened in terms of the IUCN Red List criteria given its limited extent of occurrence and population size. 

scholarly journals The importance of farmland for the conservation of the brown hyaena Parahyaena brunnea

Oryx ◽  
2013 ◽  
Vol 47 (3) ◽  
pp. 431-440 ◽  
Author(s):  
Vivien T. Kent ◽  
Russell A. Hill
Keyword(s):  
Land Use ◽  
Protected Areas ◽  
Significant Proportion ◽  
Camera Trap ◽  
Iucn Red List ◽  
Red List ◽  
Critical Importance ◽  
Sufficient Space ◽  
Global Population ◽  
Near Threatened

AbstractThe conservation of wide-ranging, territorial carnivores presents many challenges, not least the inadequacy of many protected areas in providing sufficient space to allow such species to maintain viable populations. As a result populations occurring outside protected areas may be of considerable importance for the conservation of some species, although the significance of these areas is poorly understood. Brown hyaenas Parahyaena brunnea are categorized as Near Threatened on the IUCN Red List and recent research suggests the species may be particularly vulnerable to habitat loss and the conversion of land to agriculture. Here we report on the population density and abundance of brown hyaenas in an area of commercial farmland in western Botswana. Mean brown hyaena density estimated from camera-trap surveys was 2.3 per 100 km2 and from spoor surveys 2.88 per 100 km2, which are comparable to estimates reported for protected areas. Estimated densities were higher on farms used for livestock production than on those used for game farming, suggesting that the species can tolerate land-use change where reliable alternative food resources exist. Our results indicate that populations of brown hyaenas in non-protected areas comprise a significant proportion of the global population and that such areas may be of critical importance for their conservation.

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