Wednesday, 19 June 2013

Amnesty International reports on the mining industry in Katanga Province, Democratic Republic of Congo.

The Democratic Republic of Congo (formerly Zaïre), has extensive deposits of a number of valuable metals, including gold, copper, tantalum, tungsten, niobium and cobalt. The country has derived much of its income from these minerals since independence from Belgium in 1960, but has profited little from them due to corruption, instability and civil conflict, with most of the country's 70 million population living on less than US$1.25 per day and having little access to education, health provision, clean water, sanitation or public transport. Since the most recent round of civil conflict, between 1996 and 2003, much of the mining activity in the Congo has been carried out by artisanal miners, with larger economic concerns concentrating on buying ores from these miners. While on the surface free agents, these artisanal miners are often the subject of exploitation and abuse by more powerful players in the region, including corrupt politicians and government officials, a variety of militia groups and foreign companies which may be allied to either or both.

In a report published on 19 June 2013 the Human rights organization Amnesty International investigates the mining industry in Katanga Province in the southeast of the Congo, and the role of large companies in human rights abuses associated with the mining industry.

The report concentrates on two sites, the Tilwezembe Mine site, near Kolwezi in the south of the country and Luisha township in the southeast.

The Tilwezembe Mine is officially owned by the Canadian owned Katanga Mining Limited, however there has been no industrial mining at the site since 2008, since when the site has been taken over by artisanal miners. Initially these miners were able to sell ore on the open market, but in 2010 local authorities granted management rights at the site to a company called Misa Mining, who effectively became the sole market for ores worked at the site. 

Improvised ventilation for an artisanal mine shaft at Tilwezembe. Amnesty International/Action Contre l'Impunité pour les Droits Humains.

Mining at the Tilwezembe mine appears to be more-or-less completely unregulated, with frequent fatalities due to landslides, falling boulders and poor ventilation in deep shafts, and no meaningful way to record such incidents. A significant proportion of the work carried out at the site is done by child labourers (defined as workers aged 18 or younger); again there seems to be no formal system for monitoring or recording this.

However while Misa Mining appear to take no responsibility for working conditions at the site, they do appear to be very proactive in enforcing control over ores produced at the site. Miners are no longer able to sell ore on the open market, but are forced to sell to Misa at considerably bellow market rates. Miners caught attempting to remove ore from the site face the prospect of having their ore confiscated, or of being fined. Other punishments are also administered, including beatings and detention in a 'cachot' (holding cell made from a converted shipping container) for days at a time. There are rumors of extra-judicial executions being carried out at the site.

Luisha is a village in the southeast of Katanga Province that has grown rapidly due to the expansion of artisanal mining since the late 1990s, and is now home to around 32 000 people. As sites have been developed by artisanal miners in the area they have often been taken over by larger companies, often linked to politicians. In 2011 around 300 households were forcibly relocated from the township after the land they were living on was awarded to the Congo International Mining Corporation, a subsidiary of the China Railway Engineering Corporation.

The relocated people had no formal legal claim to the land they were living on, though many of them had paid fees to local traditional leaders and erected brick-built structures. The community were relocated with two weeks notice to a new site with no housing or facilities. This happened shortly before the onset of the rainy season, so that people did not have any time to plant crops at the new location. The Congo International Mining Corporation installed a water cistern at the site, but the water quality is reportedly very poor. It is not clear if the translocated people have any security of tenure at the new site.

In a separate incident in April 2012, workers from the Compagnie Minière de Luisha, another subsidiary of the China Railway Engineering Corporation, dug a three meter wide trench across an established road to prevent artisanal miners gaining access to a site they had acquired, cutting villagers off from fields and water supplies. The villagers responded by trying to fill in the trench, but were fired at by police, resulting in one fatality. 

The trench in Luisha dug by Compagnie Minière de Luisha (COMILU), 20 April 2012. Amnesty International.

A representative of Amnesty International met with the Managing Director of the site and suggested that a fenced passageway could be constructed to allow villagers to cross the site, but this was refused.


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Three workers killed in landslide at Mumbai quarry.

Three workers have been killed, and a further two injured, in a landslide at a quarry in Navi Mumbai (a satelite town of Mumbai), in Maharashtra State, India. The incident happened at the Turbe Sainath Patil Quarry at arround 10.30 am local time (around 5.00 am, GMT) on Tuesday 18 June 2013, while the five men were operating drilling equipment at the site, following days of heavy rains associated with the onset of the Monsoon Season. Local police have reportedly arrested the director of opporetions at the site, Manan Shaikh, on suspision of causing the deaths by negligence; local press report that this is not the first incident at the quarry.

 Rescue workers using a crane to clear debris at the site of the Navi Mumbai landslide. Outlook India.

 The three men who died have been named as Polus Fansing Topoo (18), Lal Fansing Topoo (22) and Musku Surin (25) all migrant labourers hailing from Jharkhand State. The two injured men were Bhujal Kassap (23) and Ramesh Topu (25), also from Jharkhand.

Landslides are a common problem after severe weather events, as excess pore water pressure can overcome cohesion in soil and sediments, allowing them to flow like liquids. Approximately 90% of all landslides are caused by heavy rainfall.

A new species of Goby from the southwest Indian Ocean.

Gobies are small, elongate Fish related to Perches. They are a highly successful group with other 2000 species and are found across the globe. There are both marine and freshwater Gobies, as well as one group, the Mudskippers, that can survive out of water for extended periods of time. The smallest known Vertebrates are species of Goby under 1 cm in length as adults, though there are several contenders for the official title of smallest species.

In a paper published in the journal Zootaxa on 19 March 2013, Naomi Delventhal and Randall Mooi of the Department of Biological Sciences at the University of Manitoba describe a new species of Goby from the southwest Indian Ocean, based upon three specimens collected in the Comoros Islands in 1988 and one specimen collected from off the coast of South Africa in 1998.

The species is placed in the genus Callogobius, which contains about 40 shallow marine species from around the fringes of the Indian Ocean, and given the specific name winterbottomi, in honour of Rick Winterbottom of the Royal Ontario Museum, who collected the Comoron specimens. 

Callogobius winterbottomi is a small Goby, the largest specimen being 37.7 mm in length. It is distinguished from other species of the same genus by the pattern of sensory papillae (external tastebuds) on its head. 

Sensory papillae pattern in Callogobius winterbottomi. (a) Lateral view. Arrow indicates anterior extent of gill opening. (b) Dorsal view. Scale bar is 2 mm. Delventhal & Mooi (2013).

The three specimens of Callogobius winterbottomi from the Comoros, shown to scale. Scale bar is 5 mm. Delventhal & Mooi (2013).


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A new species of Armored Catfish from Peru.

Armored Catfish, Loricariidae, are large river-dwelling Fish native to Central and South America. They are covered in plate-like bony scales, and have distinctive 'suckermouths' used to attach themselves to a substrate in fast flowwing waters while still breathing. They are the largest group of Catfish, with over 680  described species and a fossil record that dates back to the Miocene. They are known in the aquarium trade as 'plecs'.

In a paper published in the journal Zootaxa on 19 April 2013, Norma Salcedo of the Grice Marine Laboratory at the College of Charleston describes a new species of Armored Catfish from clear water tributaries of the Río Huallaga near Tingo María in the Departament of Huánuco, Peru.

The new species is named Loraxichthys lexa, where 'Loraxichthys' means the 'Lorax's fish', a reference to the Lorax, a character in a book by Dr Suess, and 'lexa' is in honour of Alexandra Keane a sustainability activist, currently a Political Sciences student at the College of Charleston. The species is based upon specimens collected by the Catherwood Foundation Peruvian-Amazon Expedition, in 1955, and labeled as Chaetostoma marmorescens, a species which it only superficially resembles.

Loraxichthys lexa is a  robust Catfish, extremely flattened and covered in conspicuous bony plates except on the snout, which reaches about 50 mm in length. The colour of the specimens when alive is unknown. 

Loraxichthys lexa, male specimen in (A) lateral, (B) dorsal and (C) ventral view. Salcedo (2013).

At the time when the specimens were collected the area where the fish was collected the area was forested and sparsely populated, though it belonged to Sindicato Monzón and areas were beginning to be cleared for banana plantations. 


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Tuesday, 18 June 2013

A blind, cave dwelling, Ground Beetle from Anatolian Turkey.

Ground Beetles, Carabidae, are large, usually carnivorous Beetles, abundant across much of the globe. They are able to defend themselves by secreting noxious or caustic chemicals from glands on their abdomens (Bombardier Beetles are Carabids). Larger species are often unable to fly. Ground Beetles have a fossil record dating back to the Triassic; there are around 40 000 described extant species.

In a paper published in the journal ZooKeys on 27 December 2012, Borislav Guéorguiev of the National Museum of Natural History in Sofia, Bulgaria, describes a new species of blind, cave dwelling Ground Beetle from northern Anatolia.

The new species is given the name Beronaphaenops paphlagonicus, where 'Beronaphaenops' means 'Beron's without eyes', in honour of Petar Beron, a Bulgarian biologist noted for his studies of cave-dwelling invertebrates, and 'paphlagonicus' refers to Paphlagonia, an ancient name for the central Black Sea coast of Anatolia.

Beronaphaenops paphlagonicus. Scale bar is 1 mm. Guéorguiev (2012).

Beronaphaenops paphlagonicus is a 5-6 mm brown Beetle with elongate legs and lacking eyes. It is known only from a single location, Eşek Çukuru Mağarası cave in the Kure Mountains National Park in northern Anatolian Turkey.

The location of the Kure Mountains National Park. Google Maps.


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Four new species of Mantidfly from the Mesozoic of China.

Mantidflies, Mantispidae, are carnivorous, four-winged Insects related to Lacewings an Antlions. They have grabbing forelegs and large eyes, causing them to resemble Mantises, though the two groups have quite different origins; Mantises being related to Cockroaches and Termites. The young of Mantidflies live within Wasps' nests or Spiders' egg cases, where they grow by feeding on the hosts' young. The group have a fossil record dating back to the Early Jurassic, though these fossils are far from abundant.

In a paper published in the journal Palaeontology on 7 May 2013, James Jepson of the College of Life Sciences at Capital Normal University in Beijing and the School of Earth, Atmospheric and Environmental Sciences at the University of Manchester, Sam Heads of the Illinois Natural History Survey and Prairie Research Institute at the University of Illinois at Urbana-Champaign, Vladimir Makarin of the Institute of Biology and Soil Sciences at the Far Eastern Branch of the Russian Academy of Sciences, and Dong Ren of the College of Life Sciences at Capital Normal University, describe four new species of Mantidfly based upon fossils from the Jurassic and Mesozoic of China.

The first new species is named Archaeodrepanicus nuddsi, where Archaeodrepanicus means 'Ancient Drepanicus' (Drepanicus being an extant genus of Mantidflies) and nuddsi is in honour of John Nudds a palaeontologist at the University of Manchester. The species is named from three specimens from the Early Cretaceous Yixian Formation in Liaoning Province in northeast China. 

Two specimens of Archaeodrepanicus nuddsi. Scale bars are 5 mm. Jepson et al. (2013).

The second new species is placed in the same genus and given the name Archaeodrepanicus acutus, where 'acutus' means acute, a reference to the acute apex of the forewing. This is also from the Yixian Formation in Liaoning Province, but has a distinctive wing venation. The species is described from a single specimen. 

Archaeodrepanicus acutusScale bar is 5 mm. Jepson et al. (2013).

The third new species is named Sinomesomantispa microdentata, where 'Sinomesomantispa' means 'Chinese Mesomantispa'; Mesomantispa being a genus of fossil Mantidfly previously known from Siberia, and 'microdentata' means 'small serrations'; a reference to the small spines on the fore femur. The species is named from a single specimen from the Early Cretaceous Yixian Formation in Liaoning Province in northeast China.

Sinomesomantispa microdentataScale bar is 5 mm. Jepson et al. (2013).

The final new species is named Clavifemora rotundata, where 'Clavifemora' means 'club-like femurs', a reference to the forelegs, and 'rotundata' means 'rotund', again in reference to the forelimbs, which have a rounded prefemora (leg segment above the femur). The species is named from a single specimen from the Middle Jurassic Jiulongshan Formation of Inner Mongolia.

Clavifemora rotundata. Scale bar is 5 mm. Jepson et al. (2013).


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Monday, 17 June 2013

Fossil Tapeworm eggs from the Permian.

Tapeworms (Cestoda) are parasitic Flatworms that live in the digestive tracts of Vertebrate hosts, attaching themselves to the intestine wall and absorbing nutrients through their skins. Adult Tapeworms engage in sexual reproduction, producing eggs which are passed out of the host in its feces. Juvenile Tapeworms often inhabit one or more intermediate hosts before reaching their final adult stage, growing in the gut till they reach a certain size, then migrating to other tissues where they form cysts, becoming dormant till the animal dies and is eaten by the next host in the life-cycle.

In a paper published in the journal PLoS One on 30 January 2013, a team of scientists led by Paula Dentzien-Dias of the Laboratório de Paleontologia e Paleoceanografia at the Instituto de Oceanografia at the Universidade Federal do Rio Grande, announce the discovery of a number of fossilized tapeworm eggs in a coprolite (fossil feces) from the Mid to Late Permian Rio do Rasto Formation in the
municipality of São Gabriel in southern Brazil.

The coprolite is interpreted to have come from a Shark, due to its distinctive spiral shape, which is still seen in the feces of modern Sharks. The eggs are smooth shelled, ovoid structures 145–155 μm long, grouped together in a 1 × 4 mm cluster. This arrangement is typical of modern Tapeworms, who periodically shed clusters of eggs inside cast off body segments (proglottids).

The cluster of eggs from the Permian Shark coprolite in thin section. Dentzien-Dias et al. (2013).

Some of the eggs appear broken, and one has a developing embryo preserved. This egg only possesses part of the outer capsule, but retains a multi-layered inner capsule surrounding the embryo. Dentzien-Dias et al. theorize that the outer capsule has undergone apoptosis as modern Tapeworm eggs do.

Cestode eggs. (Top) The perfect oval shape hole were formed after the filling were reaped out from the coprolite during the lamination, the arrows show the operculum. (Bottom left) Egg with a developing embryophore. (Bottom right). Partial reconstruction of egg in (Bottom left). Abbreviations: C = capsule or shell; E = embryophore (ochosphere); H= putative developing hooklets; I = inner envelope; M= oncospheral membrane; O= outer envelope; P = putative polar thickening; Op = operculum; S = somatic cells. Dentzien-Dias et al. (2013).


The coprolite contains pyrite inclusions, which suggests it almost certainly sank into anoxic waters; the fossil bed it was found in is thought to have formed at the bottom of a freshwater lake. Coprolites with pyrite and preserved Tapeworm eggs have previously been found at neolithic sites, supporting this method of preservation, but nothing remotely as ancient as this find, which is thought to be around 270 million years old. Since it is more-or-less impossible to tell modern Tapeworm eggs apart visually, no attempt at lower level classification of the eggs is made.

Spiral heteropolar coprolite with cestode eggs. Dentzien-Dias et al. (2013).

See also The effect of parasitic Nematodes on European Eels, Two new species of terrestrial Flatworm from Brazil, An invasive Serpulid Worm in the La Encrucijada Biosphere Reserve, MexicoBlue Flatworms invade Menorca and Evidence of fungal parasites modifying the behavior of ants from the Eocene Messel Shale.

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