Search results for " HABITAT"

Augstā purva biotopu atjaunošana īpaši aizsargājamās dabas teritorijās Latvijā

2010

Purvs ir mitra dzīvotne, kurai raksturīga aktīva kūdras veidošanās. Tā ir mājvieta daudziem augiem un dzīvniekiem, kuri nespēj dzīvot citur. Neskarti augstie purvi ir rets un apdraudēts biotops Eiropā. Nosusināšana, kūdras ieguve, mežu stādīšana un zemes rekultivācija pēdējās desmitgadēs ir nelabvēlīgi ietekmējusi purvus. Meliorācijas sistēmu ietekmes dēļ Aizkraukles purvā un mežos, Aklajā, Rožu un Melnā ezera purvā purva biotopi ir izmainījušies. Projekta mērķis ir atjaunot dabisko ūdens līmeni projekta vietās – augstā purva biotopos, kurus ir ietekmējusi nosusināšana – tādējādi aizsargāt Eiropas un Latvijas nozīmes purva biotopus, augus un dzīvniekus.

After-LIFE conservation plan

2013

Main aim of the project was to re-establish hydrological regimeof natural raised bogs in four Nature Reserves. The paper shows activities have to be continued.

Effects of Long-Term Habitat Protection on Montane Small Mammals: Are Sorex araneus and S. minutus More Sensitive Than Previously Considered?

2022

Protection of natural areas by restricting human activities aims to preserve plant and animal populations and whole communities, ensuring the conservation of biological diversity and enhancement of ecosystem services. Therefore, it is expected that the longer the protection, the stronger the desired effects. We evaluated the responses of small mammals at the population and community levels under protection in the southern Carpathian Mountains. We surveyed small mammals for five years in sites with long- and short-term protection and non-protected. Besides protection status, we included elevation, habitat heterogeneity, and the month of survey as predictors in our models. As response variabl…

Additional insights on the ecology of the relic tree Zelkova sicula di Pasquale, Garfì et Quézel (Ulmaceae) after the finding of a new population

2011

Abstract In early autumn 2009 a new population of Zelkova sicula, a very threatened tree species endemic to Sicily, has been found some 17 km east from the first and unique population previously known. The abiotic (slope, rock and stone outcrop cover, environmental stress, etc.) and biotic (plant species composition, vegetation mean height, total cover, etc.) features of 30 plots selected within the two populations were investigated in order to contribute at clarifying the actual and potential eco-geographic range of this species. Data analysis showed that the floristic differences among the sampled plots mostly relate to the rather high micro-habitat amplitude of the target species and the…

Acquatina Lagoon: a model ecosystem to study community patterns

2013

Acquatina is a small lagoon ecosystem (0.45 km2) located on the Adriatic coast only 5 km north of Lecce (Italy). The lagoon has a freshwater input in the northern part and a connection with the sea at the south edge, being characterised by a latitudinal gradient of salinity and an internal patchiness of habitats. Here, we have used the lagoons as a model to study the influence of these sources of variation on the spatial distribution of macrobenthis and fish fauna, using both taxonomic and on taxonomic descriptors. Results showed a non random distribution of both species and functional traits of macroinvertebrate and fish fauna within the lagoon, despite the relatively small surface area. S…

First overview on the 4th Annex I Habitats Report in Italy: methods, criticality, results and future prospects

2019

Segnalazioni varie

Simplification, not “tropicalization”, of temperate marine ecosystems under ocean warming and acidification

2021

Ocean warming is altering the biogeographical distribution of marine organisms. In the tropics, rising sea surface temperatures are restructuring coral reef communities with sensitive species being lost. At the biogeographical divide between temperate and tropical communities, warming is causing macroalgal forest loss and the spread of tropical corals, fishes and other species, termed “tropicalization”. A lack of field research into the combined effects of warming and ocean acidification means there is a gap in our ability to understand and plan for changes in coastal ecosystems. Here, we focus on the tropicalization trajectory of temperate marine ecosystems becoming coral-dominated systems…

L'AQUILA REALE (AQUILA CHRYSAETOS). INDAGINE IN SICILIA.

1995

LE SPECIE DELLA FLORA VASCOLARE SICILIANA INCLUSE NELLE NORMATIVE INTERNAZIONALI

2012

Species of sicilian vascular flora included in the international laws. The present paper aims to divulgate the knowledge of the Sicilian flora protected at international level and includes a check-list of the Sicilian vascular flora recorded in international normatives on the protection of nature and biodiversity. For each normative general information is given together with a reference list to further deepen the contents, the aims and the present implementation in Italy.

Proposals for improvement of Annex I of Directive 92/43/ EEC: Central Italy

2021

The main purpose of the 92/43/EEC Habitats Directive is to contribute to the conservation of biodiversity, understood as habitat types and species of the flora and fauna of the European Union. To achieve this goal, natural and semi-natural biodiversity as a whole must be recognized and included in its annexes. As for the conservation of biotopes, named habitat types, Italy is unfortunately lacking as it the Annex I does not include important ecosystems that are typical of its territory, rare for biogeographical reasons or threatened. Therefore, the opportunity to identify a first list of significant habitats for central Italy is discussed here. For each of the new proposed types (new habita…