Holothurian (Echinodermata) diversity and distribution in the central Cantabrian Sea and the Avilés Canyon System (Bay of Biscay)

Zootaxa ◽  
2019 ◽  
Vol 4567 (2) ◽  
pp. 293 ◽  
Author(s):  
IRENE FERNÁNDEZ-RODRÍGUEZ ◽  
ANDRÉS ARIAS ◽  
NURIA ANADÓN ◽  
JOSÉ LUIS ACUÑA
Keyword(s):  
Multivariate Analysis ◽  
Species Richness ◽  
Continental Slope ◽  
Natura 2000 ◽  
Bay Of Biscay ◽  
Northern Spain ◽  
Global Patterns ◽  
Natura 2000 Site ◽  
Approximate Rate ◽  
Avilés Canyon

Here we report on the holothurian fauna at the Avilés Canyon System (Natura 2000 Site of Community Importance), central Cantabrian Sea, northern Spain. The samples were collected during several cruises covering the shelf, the continental slope and the abyssal depth. We identified 174 specimens, belonging to 35 species of the seven orders of class Holothuroidea. Depth was the main structuring agent. Multivariate analysis allowed the differentiation of four main assemblages which corresponded to abyssal plain, lower continental slope, upper continental slope, and continental shelf. Depth had a significant effect on holothurian species richness (it increased with depth at an approximate rate of 1.7 species 1000 m-1), which is consistent with previously described global patterns. 

scholarly journals Conservation status and trends in the transformation of Molinia meadows in the Łąki w Komborni Natura 2000 site, SE Poland

2017 ◽  
Vol 70 (3) ◽  
Author(s):  
Maria Ziaja ◽  
Tomasz Wójcik ◽  
Małgorzata Wrzesień
Keyword(s):  
Species Richness ◽  
Management Practices ◽  
Conservation Status ◽  
Natura 2000 ◽  
Protection Measures ◽  
Mean Values ◽  
Se Poland ◽  
Meadow Communities ◽  
Natura 2000 Site ◽  
Mowing Regime

The aim of this study was to provide a phytosociological and ecological characterization of meadow communities in the Łąki w Komborni Natura 2000 site (SE Poland), assess the trends in their transformation, and indicate the major threats impacting on their conservation. The study was conducted in 2015–2016. Three types of meadow communities were distinguished (alliances <em>Molinion</em>, <em>Arrhenatherion</em>, <em>Filipendulion</em>), due to the absence of the species characteristic for associations. The species richness noted per relevé differed significantly between the types of meadows (Kruskal–Wallis test: <em>H</em> = 21.65, <em>p</em> &lt; 0.05). The highest floristic biodiversity (<em>H</em>' = 2.99) was noted for the meadow patches classified as in the <em>Molinion</em> alliance and the lowest (<em>H</em>' = 2.50) was found for the patches from the <em>Filipendulion</em> alliance. Mean values of the ecological indicators (F, R, N) differed between the meadow communities. The greatest disparity was noted for the mean values of the soil moisture indicator (from 6.42 to 7.45). Patches classified in the <em>Filipendulion</em> alliance were developed on the wettest soil substratum, whereas the patches classified in the <em>Arrhenatherion</em> alliance were predominant on a relatively dry substratum. The abandonment of traditional management practices (grazing, mowing) has contributed to transformation of the <em>Molinia</em> meadows, disappearance of characteristic species and succession of shrubs. The <em>Molinia</em> meadow habitat should be conserved by improvement of protection measures (appropriate mowing regime and removal of biomass) to conserve a high species richness and the rare and protected plant species.

scholarly journals Leisure activities as a main threat for the conservation of waterbirds in an estuary in northern Iberia

2020 ◽  
pp. 243-253
Author(s):  
J. Arizaga ◽  
R. Garaita ◽  
A. Galarza
Keyword(s):  
Carrying Capacity ◽  
Leisure Activities ◽  
River Mouth ◽  
Natura 2000 ◽  
Northern Spain ◽  
Human Disturbances ◽  
Urdaibai Estuary ◽  
Natura 2000 Site ◽  
Species Specific ◽  
The Impact

Human disturbances can have a severe impact on avian conservation, decreasing diversity and carrying capacity of ecosystems. Coastal wetlands are hotspots for the conservation of biodiversity but they commonly suffer the impact of human activity because they are usually priority areas for socio–economic development. The aim of this study was to determine the role of several factors on the potential and real disturbances of human origin on waterbirds over an annual cycle, and to evaluate their impact on the waterbird community. The study was carried out at the Urdaibai estuary (Spain). Although Urdaibai is a main coastal refuge for aquatic birds in Northern Spain (a Ramsar site, Natura 2000 site, Reserve of Biosphere), it faces high levels of human–induced disturbances. We found disturbances varied across the day, week and year, with peak disturbance coinciding with hours, days and months with highest activity, mostly associated with leisure options. The impact on waterbirds varied between species and the response to such impacts was also species–specific. Disturbances were highest near the river mouth and decreased towards the upper parts of the estuary. Efforts to increase protection of waterbirds should consider reducing the disturbance in areas with the highest impact in order to increase the functional carrying capacity of the estuary for waterbirds and to create quiet feeding and resting areas, maybe by establishing reserves with restricted access.

scholarly journals Occurrence of the Green Shield-Moss Buxbaumia viridis (Moug.) Brid. in the Bieszczady Mountains of Poland

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 374
Author(s):  
Piotr Brewczyński ◽  
Kamil Grałek ◽  
Piotr Bilański
Keyword(s):  
National Park ◽  
Large Scale ◽  
Conservation Status ◽  
Natura 2000 ◽  
Field Work ◽  
Managed Forests ◽  
Moss Species ◽  
Microhabitat Preferences ◽  
Natura 2000 Site ◽  
Forest District

The small-sized gametophytes and sporophytes of the green shield-moss Buxbaumia viridis (Moug.) Brid. make it difficult to study. However, in Europe, there has been increasing interest in this species in the past few years, mostly as a result of the implementation of the Natura 2000 network. In Poland, B. viridis has only been reported in isolated studies that have been limited in terms of area and the number of participating workers. One of the Polish regions where B. viridis was recently recorded is the Bieszczady Mountains, but there have been no large-scale surveys of that region to date. The objective of the current work was to describe the B. viridis population in the Bieszczady Mountains in terms of its spatial distribution and abundance, investigate its selected microhabitat preferences, and evaluate the conservation status of this moss species within the Natura 2000 site Bieszczady PLC180001. The studied region encompassed 93,490.44 ha, including 69,056.23 ha of managed forests and 24,434.21 ha of forests belonging to the Bieszczady National Park. A preliminary survey was conducted in the Cisna Forest District (forest area of 19,555.82 ha) on 15–17 November 2017, while the main survey was performed in selected forest subcompartments of four forest districts—Baligród, Komańcza, Lutowiska, and Stuposiany—as well as the Bieszczady National Park from 5 to 16 November 2018. The field work consisted of searching for B. viridis sporophytes and setae and recording selected population and locality characteristics. The study led to the discovery of 353 new B. viridis localities in 202 study areas, with 9197 diploid individuals (sporophytes or setae only) growing in 545 microhabitats. The number of B. viridis localities discovered in the Bieszczady Mountains during 17 days of survey in 2017 and 2018 was two times higher than the combined number of localities previously found in Poland over more than 150 years (159 localities). Additionally, the number of sporophytes and setae identified was two times greater than their overall number in previous records. In addition, this study provides information about selected microhabitat preferences and the conservation status of this moss in the Bieszczady Natura 2000 site.

scholarly journals Global patterns and drivers of alpine plant species richness

2021 ◽  
Author(s):  
Riccardo Testolin ◽  
Fabio Attorre ◽  
Peter Borchardt ◽  
Robert F. Brand ◽  
Helge Bruelheide ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Plant Species Richness ◽  
Alpine Plant ◽  
Global Patterns

scholarly journals Natura 2000 sites and fisheries in German offshore waters

2008 ◽  
Vol 66 (1) ◽  
pp. 155-169 ◽  
Author(s):  
Søren Anker Pedersen ◽  
Heino Fock ◽  
Jochen Krause ◽  
Christian Pusch ◽  
Anne L. Sell ◽  
...  
Keyword(s):  
Marine Mammals ◽  
Fishery Management ◽  
Conservation Status ◽  
Natura 2000 ◽  
Management Measures ◽  
Favourable Conservation Status ◽  
Management Plans ◽  
Natura 2000 Site ◽  
Environmentally Sound ◽  
Fishing Impacts

Abstract Pedersen, S. A., Fock, H., Krause, J., Pusch, C., Sell, A. L., Böttcher, U., Rogers, S. I., Sköld, M., Skov, H., Podolska, M., Piet, G. J., and Rice, J. C. 2009. Natura 2000 sites and fisheries in German offshore waters.–ICES Journal of Marine Science, 66: 155–169. The principal objective of sites selected as part of Natura 2000 is to achieve or maintain a favourable conservation status of habitats and species named in the EU Birds and Habitats directives. In the German exclusive economic zone, the habitat types protected by this legislation are sandbanks and reefs; protected species include marine mammals, seabirds, and specific migratory fish species. The ICES project Environmentally Sound Fishery Management in Protected Areas (EMPAS) aims to answer two questions: (i) To what extent do specific fishing activities significantly threaten attainment of the conservation objectives of the Natura 2000 sites? (ii) What management measures would reduce these conflicts and how effective would they be at helping to ensure the favourable condition of these sites? Assessments of fishing impacts on Natura 2000 sites require basic data on the conservation status of individual habitats and species, as well as data for fine-scale distributions of ongoing fishing activities. This paper describes and discusses the process used by the EMPAS project in developing fishery-management plans for each Natura 2000 site in German offshore waters.

scholarly journals The contribution of agent-based simulations to conservation management on a Natura 2000 site

2016 ◽  
Vol 168 ◽  
pp. 27-35 ◽  
Author(s):  
Hélène Dupont ◽  
Françoise Gourmelon ◽  
Mathias Rouan ◽  
Isabelle Le Viol ◽  
Christian Kerbiriou
Keyword(s):  
Conservation Management ◽  
Natura 2000 ◽  
Agent Based ◽  
Agent Based Simulations ◽  
Natura 2000 Site

scholarly journals Flower‐visitor communities of an arcto‐alpine plant—Global patterns in species richness, phylogenetic diversity and ecological functioning

2018 ◽  
Vol 28 (2) ◽  
pp. 318-335 ◽  
Author(s):  
Mikko Tiusanen ◽  
Tea Huotari ◽  
Paul D. N. Hebert ◽  
Tommi Andersson ◽  
Ashley Asmus ◽  
...  
Keyword(s):  
Species Richness ◽  
Phylogenetic Diversity ◽  
Alpine Plant ◽  
Flower Visitor ◽  
Global Patterns ◽  
Ecological Functioning

scholarly journals Awifauna wodno-błotna środkowej Wisły w okresie lęgowym: wpływ działalności człowieka na rozmieszczenie, liczebność i bogactwo gatunkowe

2011 ◽  
Vol 9 (2) ◽  
pp. 67-86 ◽  
Author(s):  
Dariusz Bukaciński ◽  
Monika Bukacińska ◽  
Arkadiusz Buczyński
Keyword(s):  
Bird Species ◽  
Natura 2000 ◽  
River Channel ◽  
River Valley ◽  
Breeding Bird ◽  
Breeding Sites ◽  
Vistula River ◽  
Breeding Habitats ◽  
Natura 2000 Site ◽  
River Bottom

The inventory of birds was conducted in the years 2005-2010 on the Vistula River section between Dęblin (388 km of the river) and Podwierzbie (435 km of the river). The study area includes a southern section of the European Ecological Natura 2000 Site in Poland PLB140004 „Middle Vistula River Valley” (IBA, PL083). In most areas the Vistula flows here within unregulated or relatively little modified riverbed, having features of natural, lowland, braided river. Sandy islands and braid bars within the main channel, steep banks, and old riparian afforestation create the unique breeding habitats of the Vistula River Valley. Especially the river channel habitats provide suitable breeding sites for many rare bird species, constituting some of them the key-breeding sites. There are, however, fragments of several kilometers, where people transformed the Vistula River in a more visible way (Table 1). These are, among others: an urban section within Dęblin boundaries (km 388-393 of the river), a fragment adjacent to Kozienice Power Plant (km 421-426), and the area, where since 2007 gravel for the industry has been mining from the river bottom (km 426-431). The aim of this inventory was the comparison of richness and abundance of breeding bird species associated directly with the river channel on fragments mentioned above. It will allow us to estimate soberly how very the intensity of human utilization of the river affects the distribution of avifauna of the Vistula, determining the richness and abundance of valuable and/or endangered species breeding in a given area.

Parques eólicos, red Natura 2000 e impacto ambiental. Comentario a la sentencia del Tribunal Superior de Justicia del País Vasco de 18 de febrero de 2011 (proyecto de parque eólico de Ordunte)

2011 ◽  
pp. 233-256
Author(s):  
Agustín GARCÍA URETA ◽  
Iñigo LAZCANO BROTÓNS
Keyword(s):  
Environmental Impacts ◽  
Wind Farm ◽  
Basque Country ◽  
Natura 2000 ◽  
High Court ◽  
The Government ◽  
Natura 2000 Site ◽  
La Red ◽  
Pais Vasco

LABURPENA: Iruzkinak 2011ko otsailaren 18ko epaiarekin zerikusia du. Honetan Euskal Autonomia Erkidegoko Justizia Auzitegi Nagusiak, bere egunean euskal Administrazioak Ordunten eraiki beharreko parke eolikoari buruz egindako ingurumenaren gaineko eraginaren aurkako aitorpena Zuzenbidearekin bat ez zetorrela ondorioztatu zuen. Erabilitako arrazoien artean, Auzitegiaren ustetan, Eusko Jaurlaritzak ez zituen Natura 2000 sareko gune batean egin beharreko proiektuak planteatutako eragin kritikoak modu egokian arrazoitu. RESUMEN: El comentario tiene que ver con una sentencia de 18 de febrero de 2011, en la que el Tribunal Superior de Justicia del País Vasco (TSJ) llegó a la conclusión de que la declaración de impacto ambiental (DIA) desfavorable, que dictó en su día la Administración autonómica en relación con la construcción de un parque eólico en Ordunte, no era conforme a Derecho. Entre otras razones, el Tribunal indicó que el Gobierno Vasco no había motivado de manera suficiente los impactos críticos que, en su opinión, planteaba el proyecto en una zona de la red Natura 2000. ABSTRACT: The comment concerns a judgment of the High Court of the Basque Country of 18 February 2001 that held that the unfavorable environmental declaration issued by the Basque Government regarding a wind farm was not consistent with applicable laws. The Court held, inter alia, that the Government had not provided sufficient reasons to sustain the assumption that the project embraced critical environmental impacts on a Natura 2000 site.

The species richness-elevation relationship: global patterns of variation in chironomid richness in mountain lakes

2019 ◽  
Vol 12 (4) ◽  
pp. 339-350
Author(s):  
Luciana Motta ◽  
Adriana Ruggiero ◽  
Guillermo de Mendoza ◽  
Julieta Massaferro
Keyword(s):  
Species Richness ◽  
Mountain Lakes ◽  
Global Patterns
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