scholarly journals Thymallus thymallus (Linnaeus, 1758), Ecological Status in Maramureş Mountains Nature Park (Romania)

2016 ◽  
Vol 18 (2) ◽  
pp. 53-68 ◽  
Author(s):  
Angela Curtean-Bănăduc ◽  
Doru Bănăduc
Keyword(s):  
Habitat Fragmentation ◽  
Human Impact ◽  
Conservation Status ◽  
Ecological Status ◽  
Mining Pollution ◽  
Thymallus Thymallus ◽  
Riparian Trees ◽  
Natural Flow ◽  
Nature Park ◽  
Flow Changes

Abstract Thymallus thymallus is considered a species of significant protective importance within the Vişeu Watershed. The state of habitats characteristically inhabited by Thymallus thymallus within the Maramureş Mountains Nature Park is balanced between reduced (one third of the lotic sectors where the species was identified), average (one third) and good (one third). The excellent conservation status is currently missing for populations of this fish in the Vișeu Basin. Human impact types identified as contributing towards the decreasing state of Thymallus thymallus habitats and therefore populations in the studied area in comparison with its natural potential are: poaching, minor riverbeds morphodynamic changings, solid and liquid natural flow changes, destruction of riparian trees and bush vegetation, habitat fragmentation/isolation of population, organic and mining pollution, and displaced fish that are washed away during flood periods in the lotic sectors uniformized by humans.

scholarly journals Eudontomyzon danfordi (Regan, 1911) Species Populations Ecological Status in Maramureş Mountains Nature Park (Romania)

2015 ◽  
Vol 17 (2) ◽  
pp. 139-154
Author(s):  
Angela Curtean-Bănăduc ◽  
Oana Danci ◽  
Doru Bănăduc
Keyword(s):  
Conservation Status ◽  
Ecological Status ◽  
Impact Categories ◽  
Mining Pollution ◽  
Flow Disruption ◽  
Riparian Trees ◽  
Natural Flow ◽  
Nature Park ◽  
Average Status ◽  
Degraded Condition

Abstract The Eudontomyzon danfordi characteristic habitats state of Maramureş Mountains Nature Park varies greatly, 19.05% are in excellent conservation status, 47.62% are in good/average status and 33.33% are in a partially degraded condition. The identified human impact categories which induced the decreasing of Eudontomyzon danfordi species habitat state in the studied area are: poaching, minor riverbeds morphodynamic changings, liquid and solid natural flow disruption, destruction of riparian trees and bush vegetation, habitat fragmentation-fish populations isolation, and organic/mining pollution activities.

scholarly journals The Status of Romanogobio uranoscopus (Agassiz, 1828) Species, in Maramureş Mountains Nature Park (Romania)

2017 ◽  
Vol 19 (1) ◽  
pp. 71-84
Author(s):  
Angela Curtean-Bănăduc ◽  
Doru Bănăduc
Keyword(s):  
Riparian Vegetation ◽  
Conservation Status ◽  
Ecological State ◽  
Mining Pollution ◽  
Natural Park ◽  
Natural Flow ◽  
The Status ◽  
Nature Park ◽  
Flow Changes ◽  
Periodic Flooding

Abstract The condition of aquatic habitats typically occupied by Romanogobio uranoscopus within the Maramureş Mountains Natural Park fluctuates, in the best cases, between reduced to average. Good or excellent conservation status is now absent for populations of this species in the researched area. The identified human impact types (poaching, minor riverbeds morphodynamic changes, solid and liquid natural flow changes, destruction of the riparian vegetation and bush vegetation, habitat fragmentation/isolation of population, organic and mining pollution and displaced fish that are washed away during the periodic flooding in the lotic sectors uniformized by humans) are contributing to the diminished ecological state of Romanogobio uranoscopus habitats and for that reason populations. Romanogobio uranoscopus is now considered a rare species in the studied basin but where this species was specified as missing, it has been registered with a restorative potential.

scholarly journals Cottus Gobio Linnaeus, 1758, Ecological Status and Management Elements in Maramureş Mountains Nature Park (Romania)

2017 ◽  
Vol 9 (1) ◽  
pp. 15-26
Author(s):  
Angela Curtean-Bănăduc ◽  
Oana Danci ◽  
Răzvan Voicu ◽  
Doru Bănăduc
Keyword(s):  
Conservation Status ◽  
Ecological Status ◽  
Mining Pollution ◽  
Cottus Gobio ◽  
Flow Disruption ◽  
Species Of Conservation Concern ◽  
Natural Flow ◽  
Riparian Tree ◽  
Nature Park ◽  
Conservation Concern

Abstract Cottus gobio is considered a fish species of conservation concern within the Vişeu Watershed. The habitats state, usually populated by Cottus gobio within the Maramureş Mountains Nature Park (Vişeu and Bistriţa Aurie watersheds) vary among reduced (34.42%), average (45.91%), and good (19.67%). The excellent conservation status is currently missing for populations of this fish in the Vișeu Basin. Human impact categories were inventoried as inducing the diminishment of Cottus gobio habitats and populations in the researched area in comparison with its natural potential are: minor riverbed morphodynamic changes, liquid and solid natural flow disruption, destruction of riparian tree and shrub vegetation, habitat fragmentation-fish populations isolation, organic/mining pollution activities, fish washing away at floods, and poaching.

scholarly journals Barbus meridionalis Risso, 1827 populations status in the Vişeu River basin (Maramureş Mountains Nature Park)

2017 ◽  
Vol 19 (2) ◽  
pp. 83-96
Author(s):  
Doru Bănăduc ◽  
Angela Curtean-Bănăduc
Keyword(s):  
Good Condition ◽  
Ecological Status ◽  
Ecological State ◽  
Species Status ◽  
Mining Pollution ◽  
Lotic Ecosystems ◽  
Natural Park ◽  
The Status ◽  
Restoration Potential ◽  
Nature Park

Abstract The ecological state of lotic ecosystems occupied naturally by Barbus meridionalis, in the Vişeu Basin within the Maramureş Mountains Natural Park, vary among good to reduced. The inventoried human activities which negatively influence the ecologic state of the Barbus meridionalis species habitats and populations are the organic and mining pollution, and poaching. The habitats with low and inadequate conditions created a reduced status of the Barbus meridionalis populations; the status of Barbus meridionalis populations is not so much affected in the cases of habitats of average to good condition. Barbus meridionalis is considered a relatively common fish species in the researched watershed despite the fact that its populations ecological status has decreased from 2007-2015, but the restoration potential in the area for improving this species status is high.

scholarly journals The avifauna of thePolylepiswoodlands of the Andean highlands: the efficiency of basing conservation priorities on patterns of endemism

1993 ◽  
Vol 3 (1) ◽  
pp. 37-55 ◽  
Author(s):  
J. Fjeldså
Keyword(s):  
Habitat Fragmentation ◽  
Human Impact ◽  
Disjunct Distribution ◽  
Conservation Priorities ◽  
Woodland Birds ◽  
Cordillera Blanca ◽  
Efficient Protection ◽  
Scrub Forest ◽  
Andean Highlands ◽  
Near Threatened

SummaryThe Andean páramo and puna zones may once have been densely dotted by woodlands, mainly ofPolylepis, but human impact has now led to a highly disjunct distribution of this habitat. Because of the habitat fragmentation, many specialized woodland birds now show relictual distributions. Speciations to thePolylepiszone took place in Peru and Bolivia during cold/arid climatic periods, asPolylepis-dominated woodland refuges were isolated away from the humid cis-Andean zone and the pre-Andean scrub-forest in Bolivia. An efficient protection of biodiversity in a minimum of well-managed areas could be achieved, if efforts were concentrated in highlands near the proposed Pleistocene woodland refuges: 55% of all endemic and 67% of all threatened and near-threatened landbirds of the high Andean zone of Peru and Bolivia were recorded within three 10 x 10 km study plots near Cochabamba in Bolivia and east of Abancay and on the east slope of Cordillera Blanca in Peru. The biological basis for the efficiency of this approach is discussed.Los páramos y punas Andinas pueden haber estado densamente poblados de bosques, principalmente dePolylepis, pero el impacto humano ha causado una distribución muy esparcida de este habitat. Debido a la fragmentatión del habitat, muchos pájaros especializados al bosque, ahora muestran distribuciones rudimentales. La diferenciación de las espeties en la zona dePolylepisse dió en Perú y Bolivia durante períodos climáticos fríos/aridos, al igual que los refúgios de bosques dominados porPolylepisfueron aislados de la zona húmeda cis-Andina y de la zone chaqueña en Bolivia. Se podría lograr una protección efitiente de la biodiversidad en un mínimo de áreas bien manejadas, si se concentrasen los esfuerzos en las sierras cerca de los refúgios propuestos de bosque Pleistocenico. Así es, que un 55% de los pájaros endémicos y 67% de todos los especies en peligro de extintión de la zona alto-Andina de Perú y Bolivia fueron registrados dentro de tres áreas de estudio de 10 × 10 km, cerca de Cochabamba en Bolivia, y al sureste de Abancay y en la vertiente oriental de la Cordillera Blanca en Perú. El artículo diserta los processos básicos.

scholarly journals Review of habitat distribution, conservation status and human impact: the case of one Natura 2000 site in the Eastern Carpathians (Romania)

2017 ◽  
Vol 52 ◽  
pp. 105-118
Author(s):  
Tudor-Mihai Ursu ◽  
◽  
Sorina Fărcaş ◽  
Gheorghe Coldea ◽  
Ilie-Adrian Stoica ◽  
...  
Keyword(s):  
Human Impact ◽  
Conservation Status ◽  
Natura 2000 ◽  
Habitat Distribution ◽  
Eastern Carpathians ◽  
Natura 2000 Site

scholarly journals Where Is More Important Than How in Coastal and Marine Ecosystems Restoration

2021 ◽  
Vol 8 ◽  
Author(s):  
Simonetta Fraschetti ◽  
Chris McOwen ◽  
Loredana Papa ◽  
Nadia Papadopoulou ◽  
Meri Bilan ◽  
...  
Keyword(s):  
Human Impact ◽  
Global Analysis ◽  
Conservation Status ◽  
Marine Ecosystems ◽  
Successful Outcome ◽  
Small Subset ◽  
Spatial And Temporal Scales ◽  
Biological Communities ◽  
Definition Of Success ◽  
Definition Of

Restoration is considered an effective strategy to accelerate the recovery of biological communities at local scale. However, the effects of restoration actions in the marine ecosystems are still unpredictable. We performed a global analysis of published literature to identify the factors increasing the probability of restoration success in coastal and marine systems. Our results confirm that the majority of active restoration initiatives are still concentrated in the northern hemisphere and that most of information gathered from restoration efforts derives from a relatively small subset of species. The analysis also indicates that many studies are still experimental in nature, covering small spatial and temporal scales. Despite the limits of assessing restoration effectiveness in absence of a standardized definition of success, the context (degree of human impact, ecosystem type, habitat) of where the restoration activity is undertaken is of greater relevance to a successful outcome than how (method) the restoration is carried out. Contrary to expectations, we found that restoration is not necessarily more successful closer to protected areas (PA) and in areas of moderate human impact. This result can be motivated by the limits in assessing the success of interventions and by the tendency of selecting areas in more obvious need of restoration, where the potential of actively restoring a degraded site is more evident. Restoration sites prioritization considering human uses and conservation status present in the region is of vital importance to obtain the intended outcomes and galvanize further actions.

scholarly journals Recent distribution of Sphaerium nucleus (Studer, 1820) (Bivalvia: Sphaeriidae) in the Czech Republic

2008 ◽  
Vol 7 ◽  
pp. 26-32
Author(s):  
Tereza Kořínková ◽  
Luboš Beran ◽  
Michal Horsák
Keyword(s):  
Czech Republic ◽  
Human Impact ◽  
Conservation Status ◽  
Water Bodies ◽  
Lowland River ◽  
Museum Collections ◽  
The Czech Republic ◽  
Small Water ◽  
Sphaerium Corneum ◽  
Voucher Specimens

Recent data about the distribution of Sphaerium nucleus in the Czech Republic are summarized and used in an attempt to evaluate its conservation status. During the last ten years, this species was found at 40 sites, mostly shallow small water bodies situated in lowland river alluviums. These types of habitats are generally endangered due to the huge human impact and exploration of these areas. The revision of voucher specimens of Sphaerium corneum s.lat. deposited in museum collections yielded a further 22 old records of S. nucleus.

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