Population growth rates in northern Cape Vulture Gyps coprotheres colonies between 2010 and 2019

2020 ◽  
pp. 1-10
Author(s):  
MARGARET T. HIRSCHAUER ◽  
KERRI WOLTER ◽  
ALEXANDRA HOWARD ◽  
BRIAN W. ROLEK ◽  
CHRISTOPHER J. W. MCCLURE
Keyword(s):  
Population Growth ◽  
Conservation Status ◽  
Breeding Pair ◽  
Holistic View ◽  
Population Growth Rates ◽  
The North ◽  
North Eastern ◽  
Conservation Actions ◽  
Credible Intervals ◽  
Northern Cape

Summary The ‘Endangered’ Cape Vulture Gyps coprotheres has been monitored across its range for decades through disparate studies varying in geographical scope and length. Yet, no long-term, range-wide survey exists for the species. Coordinated monitoring across the range of the Cape Vulture would be logistically challenging but provide a holistic view of population dynamics in this long-lived species that forages across much of southern Africa. Here, we report breeding pair counts from seven colonies in the Cape Vulture’s north-eastern breeding region from 2010 to 2019. We used state-space models to assess population growth across time. Manutsa, Soutpansberg, and Nooitgedacht colonies increased significantly over the study period, with three other colonies having positive estimates of population growth, but 95% credible intervals overlapped zero. The smallest colony at Moletjie is declining toward extirpation; only one breeding pair remained in 2019. Our results suggest the north-eastern population has been stable or increasing since 2010 with our 2019 surveys counting 2,241 breeding pairs across all sites. Indeed, there is an 89% chance that the population across the colonies we monitored increased from 2010 to 2019. Coordinated, range-wide, full-cycle monitoring is needed to thoroughly assess conservation status and efficacy of conservation actions taken for this endangered species.

Cryptic speciation in the herbaceous bamboo genus Piresia (Poaceae, Olyreae)

2019 ◽  
Author(s):  
Maria L Silveira de Carvalho ◽  
Izabela S D de Jesus ◽  
Rilquer M da Silva ◽  
Kelly R B Leite ◽  
Alessandra S Schnadelbach ◽  
...  
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Leaf Surface ◽  
Conservation Status ◽  
Integrative Approach ◽  
Niche Modelling ◽  
The North ◽  
Abaxial Leaf Surface ◽  
Herbaceous Bamboos ◽  
North Eastern

Abstract Piresia, a small genus of herbaceous bamboos, has a geographical disjunction between the Caribbean and northern/western South America and the north-eastern Atlantic Forest in Brazil. Piresia leptophylla is reported from western Amazonia (WA) and the north-eastern Atlantic Forest (NAF), but its occurrence in western Amazonia is questionable. Using an integrative approach, we combined traditional morphological analysis, anatomy and niche modelling. The results revealed few macromorphological differences between WA and NAF specimens (only plant height, leaf length, lodicule dimensions, shape and position), contrasting with consistent differences in leaf anatomy (macrohairs and cruciform silica bodies in the costal zone of the adaxial/abaxial leaf surfaces, crenate silica bodies on the abaxial leaf surface, lack of panicoid hairs on the abaxial leaf surface, bicellular microhairs and lobed papillae over the abaxial leaf surface, and sparse but elongated fusoid cells in the mesophyll of WA specimens) and in niche patterns. The anatomical/micromorphological characters suggest environmental adaptations to the Amazonian and ‘restinga’ forests, respectively. We therefore propose the segregation of the WA populations into a new species, Piresia tenella sp. nov. We provide a formal description, photographs, a line illustration, a distribution map and discussion of the conservation status for the new species.

Eucalyptus fusiformis (Myrtaceae), a new species of Ironbark (in the Informal E. series Paniculatae Pryor et Johnson) from North-eastern NSW.

Brunonia ◽  
1987 ◽  
Vol 10 (2) ◽  
pp. 201
Author(s):  
DJ Boland ◽  
DA Kleinig ◽  
JJ Brophy
Keyword(s):  
New Species ◽  
New South ◽  
Conservation Status ◽  
North Coast ◽  
Volatile Oils ◽  
The North ◽  
South Wales ◽  
North Eastern ◽  
A New Species

A new species, Eucalyptus fusiformis Boland et Kleinig, from the north coast of New South Wales is described. Its taxonomic position is in E. subgenus Symphyomyrtus series Paniculatae following the informal classification of eucalypts proposed by Pryor and Johnson (1971). E. fusiformis is characterised by its flowers, fruits and adult leaves. In the bud the staminal filaments are fully inflected while the androecium has outer staminodes and the anthers are cuboid and adnate. The fruits are narrow, often truncate fusiform, tapering into long slender pedicels. The adult leaves are dull grey, concolorous and hypoamphistomatic. The species resembles the more numerous and often co-occurring ironbark E. siderophloia which has similar adult and seedling leaves. The volatile oils of both species are very similar. The ecology, distribution, taxonomic affinities and conservation status are discussed.

scholarly journals Hosts, seasonality and geographic distribution of the South African tortoise tick, Amblyomma marmoreum

2006 ◽  
Vol 73 (1) ◽  
Author(s):  
I.G. Horak ◽  
I.J. McKay ◽  
Heloise Heyne ◽  
A.M. Spickett
Keyword(s):  
South African ◽  
Adult Tick ◽  
Eastern Cape ◽  
Large Herbivores ◽  
Mpumalanga Province ◽  
The North ◽  
Numida Meleagris ◽  
Large Numbers ◽  
North Eastern ◽  
Northern Cape

The tortoise tick Amblyomma marmoreum was collected from large numbers of reptiles and other animals during the course of numerous surveys conducted in South Africa. A total of 1 229 ticks, of which 550 were adults, were recovered from 309 reptiles belonging to 13 species, with leopard tortoises, Geochelone pardalis being the most heavily infested. The 269 birds sampled harboured 4 901 larvae, 217 nymphs and no adult ticks, and the prevalence of infestation was greatest on hel meted guinea fowls, Numida meleagris. Only two larvae were recovered from 610 rodents, including 31 spring hares, Pedetes capensis, whereas 1 144 other small mammals yielded 1 835 immature ticks, of which 1 655 were collected from 623 scrub hares, Lepus saxatilis. The 213 carnivores examined harboured 2 459 ticks of which none were adult. A single adult tick and 6 684 larvae and 62 nymphs were recovered from 656 large herbivores, and a total of 4 081 immature ticks and three adults were collected from 1 543 domestic animals and 194 humans. Adult male and female A. marmoreum were most numerous on reptiles during January and February, and larvae during March. The largest numbers of larvae were present on domestic cattle and helmeted guineafowls in the Eastern Cape Province during March or April respectively, whereas larvae were most numerous on helmeted guineafowls, scrub hares and the vegetation in north-eastern Mpumalanga Province during May. In both provinces nymphs were most numerous between October and December. Amblyomma marmoreum appears to be most prevalent in the western regions of the Western and Eastern Cape and Free State provinces, and the north-eastern regions of the Northern Cape, KwaZulu- Natal, Mpumulanga and Limpopo provinces.

Primula subpyrenaica (Primulaceae) a new species from the Pyrenean range (south-western Europe)

Phytotaxa ◽  
2014 ◽  
Vol 163 (2) ◽  
pp. 77 ◽  
Author(s):  
Pere Aymerich ◽  
JAVIER LÓPEZ-ALVARADO ◽  
LLORENÇ SÁEZ
Keyword(s):  
New Species ◽  
Iberian Peninsula ◽  
Western Europe ◽  
Conservation Status ◽  
Morphological Characters ◽  
Narrow Endemic ◽  
The North ◽  
Morphological Basis ◽  
North Eastern ◽  
A New Species

A new species in the genus Primula, P. subpyrenaica, is described from the Pyrenean range in the north-eastern Iberian Peninsula. The species belongs to P. sect. Auricula, and is related to P. auricula and P. lutea mainly on a morphological basis. However, P. subpyrenaica differs from those two species and from other related taxa by various morphological characters (non-scariose and longer bracts, fragrant leaves, yellowish or brownish when pressed). Data on its ecology, taxonomic relationships and conservation status of this narrow endemic is also provided.

The rediscovery of Stachys virgata (Lamiaceae), a rare endemic of Peloponnisos, Greece: taxonomy, distribution, karyology and conservation

Phytotaxa ◽  
2015 ◽  
Vol 218 (3) ◽  
pp. 241 ◽  
Author(s):  
Theophanis Constantinidis ◽  
Eleftherios Kalpoutzakis ◽  
Konstantinos Kougioumoutzis
Keyword(s):  
Conservation Status ◽  
Field Work ◽  
History Museum ◽  
Historical Collections ◽  
The North ◽  
North Eastern ◽  
Rare Endemic ◽  
First Time ◽  
Made In ◽  
Specific Conservation

Stachys virgata, a rare Greek member of S. subsect. Rectae, was hitherto known from historical collections made in the north-eastern and southern parts of Peloponnisos, the last one dated in 1844. Its only recent record, on Poros Island in 1940, is not supported by a herbarium specimen. The species was rediscovered in 2005, 161 years after its last collection, and subsequently documented in 18 populations (1 of them now extinct) distributed along the eastern slopes of Mt. Parnonas and Mt. Madara in east Peloponnisos. We review the species’ description and distribution based on both historical records and recent collections, select a specimen deposited in the Natural History Museum, Paris (P) as a lectotype, and count its chromosome number, 2n = 34, for the first time. We evaluate the species’ taxonomic relationships and consider its threats and conservation status based on our own field work and several years of monitoring. S. virgata totals 355 mature plants and 12 out of its 18 populations comprise 20 plants or fewer. Based on the IUCN criteria, S. virgata falls under the Endangered (EN) category and specific conservation measures are proposed. Finally, we provide a key distinguishing S. virgata from the other Greek members of S. subsect. Rectae.

scholarly journals Vulnerabilidad de las especies de Dytiscidae (Coleoptera) en Cuba

2018 ◽  
Vol 66 (2) ◽  
pp. 709
Author(s):  
Yoandri S. Megna ◽  
David Sánchez-Fernández ◽  
Ileana Fernández García ◽  
Bernardo Reyes-Tur ◽  
Michael Balke
Keyword(s):  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Habitat Specificity ◽  
Caribbean Islands ◽  
The North ◽  
Management Measures ◽  
Diving Beetles ◽  
Threatened Taxa ◽  
Conservation Actions

Vulnerability of Dytiscidae species (Coleoptera) in Cuba. Cuba has one of the richest diving beetles species diversity in the Caribbean islands. However, Cuban Dytiscidae remain scarcely studied, and there is need to identify those species and habitats that urgently require effective conservation actions. Here we aim to identify the threatened taxa of the family Dytiscidae in Cuba according to their degree of vulnerability. For that, we compiled distributional data on the Cuban fauna, including data from literature, collections and own samplings carried out between the period 2000 and 2014. In addition, the vulnerability of the species was evaluated using a methodology that combines six criteria regarding both species and habitat attributes. This analysis of vulnerability was completed to 50 (94 %) out of 53 Cuban species. Five species (9 %) were identified as highly vulnerable, 20 (38 %) moderately and 25 (48 %) as having low conservation status. The five most threatened species were Laccodytes cobrinae, Laccophilus alariei, Copelatus barbouri, C. darlingtoni, and Desmopachria glabella. These species are endemic to Cuba and characterized by highly localized populations and low abundance as well as high habitat specificity. Thus, we propose the inclusion of these five species in both the red list of Cuban fauna and the IUCN Red List (under the category of “Vulnerable”). In addition, not all areas where these species were found belong to the National System of Protected Areas of Cuba. Thus, we suggest the inclusion of the Laguna Base Julio A. Mella and the North of Imías, and to develop effective management measures to prevent the alteration of these aquatic ecosystems. Rev. Biol. Trop. 66(2): 709-721. Epub 2018 June 01. Key words: 

scholarly journals Distribution and population dynamics of Calamus nambariensis Becc. - An endemic and threatened cane of Assam

2017 ◽  
Vol 6 (12) ◽  
pp. 1829 ◽  
Author(s):  
Kishor Deka ◽  
Borthakur S.K. ◽  
Bhaben Tanti
Keyword(s):  
Human Impacts ◽  
Conservation Status ◽  
Eastern Region ◽  
Population Status ◽  
The North ◽  
Great Economic Importance ◽  
North Eastern ◽  
Reserve Forest ◽  
Over Exploitation ◽  
Near Extinction

Rattans are prickly climbing palm which comprise more than fifty percent of the total palm taxa found in India. This non-timber forest product has great economic importance in handicraft and furniture making because of its richness in fiber, with suitable toughness and easy for processing. The rattan resources have depleted very fast in recent years due to over exploitations, uncontrolled harvesting and deforestation. High demand for these resources has led towards the exhaustion in many rattan-producing areas. C. nambariensis is a high-quality cane, considered as endemic and threatened to the North-eastern region of India. Subsequently this species of cane has been depleting very fast due to several human impacts such as habitat fragmentation and over-exploitation which hinder the sufficient development of the plant in its natural condition. So, it is urgently needed to find out the habitat distribution and population status of C. nambariensis for making strategy to improve its conservation status. The present study reveals the occurrence of C. nambariensis only in two pockets of Assam viz, Nambor Reserve Forest of Golaghat district and Gibbon Wildlife Sanctuary of Jorhat district, Assam (India). The density, frequency and abundance of this species in Nambor Reserve Forest for last three years were found to decline as 1.038, 83.75, 1.23; 0.888, 78.75, 1.122 and 0.8, 76.25, 1.057 respectively. This declining rate depicts the near extinction of the species.

Status of Ornamental Fish Diversity of Urpod Beel of Goalpa-ra District, Assam

2020 ◽  
Vol 7 (1) ◽  
pp. 45-52
Author(s):  
Anupam Sharma ◽  
Keyword(s):  
Fish Species ◽  
Eichhornia Crassipes ◽  
Conservation Status ◽  
Ornamental Fish ◽  
Ceratophyllum Demersum ◽  
Fish Diversity ◽  
Mystus Vittatus ◽  
Fish Resources ◽  
The North ◽  
North Eastern

The North Eastern Sates including Assam are very rich in aquatic bio-resources and dominated by several endemic fish resources. The study was conducted from June 2018- July 2019 in two different fish assembling villages viz. Chamaguri (W) and Garokuta (North) of Urpad Beel and fish species were recorded along with their IUCN Conservation status. Altogether, 31 ornamental fish species belonging to 16 Genera, 15 Families, and 6 Orders be-longing to orders like Beloniformes, Cypriniformes, Osteoglossiformes, Siluriformes, Sym-branchiformes, Perciformes, Tetradontiformes were recorded. Out of the recorded fish spe-cies, Lepidocephalichthys guntea (Hamilton-Buchanan,1822), Channa gachua (Hamilton, 1822) and Chanda nama (Hamilton, 1822) were assessed as NE, Botia rostrata (Gun-ther,1868) and Channa gachua (Hamilton, 1822), Mystus vittatus ( Bloch, 1794) as VU, Ctenops nobilis (Mc Clelland, 1845) as NT as per IUCN Status 2013. The ornamental fishes are found in the weed assemblage of the Beel including Eichhornia crassipes, Hydrilla verticillate and Ceratophyllum demersum.

Discussion on “The grinding wheel and production” at the North-Eastern Section of the Institution

1942 ◽  
Vol 21 (8) ◽  
pp. 315
Author(s):  
Bowen ◽  
Vickery ◽  
Buchanan ◽  
Swallow ◽  
Perks ◽  
...  
Keyword(s):  
Grinding Wheel ◽  
The North ◽  
North Eastern
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