Search results for "diversity"
showing 10 items of 3950 documents
Le infrastrutture ecologiche come elemento funzionale nella gestione della biodiversità degli agrosistemi, con particolare riferimento al vigneto
2013
Molti studiosi, già da diverso tempo, hanno messo in risalto l’importanza della diversità vegetale negli agroecosistemi sull’aumento della presenza di artropodi utili che contribuiscono al contenimento delle specie dannose. In quest’ambito una strategia di difesa per mantenere alto il livello di biodiversità riguarda l’uso delle cosiddette “infrastrutture ecologiche” o “aree di compensazione ecologica”, cioè siepi o fasce di vegetazione adiacenti al campo coltivato o al suo che forniscono ospiti alternativi e siti rifugio per predatori e parassitoidi di insetti dannosi, aumentando in tal modo l’abbondanza dei nemici naturali e la colonizzazione delle colture confinanti. Alcuni lavori di cam…
Wetland Restoration with Hydrophytes: A Review
2021
Restoration cases with hydrophytes (those which develop all their vital functions inside the water or very close to the water surface, e.g., flowering) are less abundant compared to those using emergent plants. Here, I synthesize the latest knowledge in wetland restoration based on revegetation with hydrophytes and stress common challenges and potential solutions. The review mainly focusses on natural wetlands but also includes information about naturalized constructed wetlands, which nowadays are being used not only to improve water quality but also to increase biodiversity. Available publications, peer-reviewed and any public domain, from the last 20 years, were reviewed. Several countrie…
Tiesību uz vārda brīvību mijiedarbība ar pašvaldību tiesībām izdot pašvaldību plašsaziņas līdzekli
2018
Mūsdienās pašvaldību plašsaziņas līdzekļi satur ne tikai ar pašvaldības domes darbu saistītu informāciju, bet arī komerciālas reklāmas un sludinājumus, kas ir galvenais ienākumu gūšanas avots privāto plašsaziņas līdzekļu īpašniekiem. Šī iemesla dēļ sabiedrībā pastāv diskusijas par to, vai pašvaldību plašsaziņas līdzekļu izdošana nepārkāpj tiesības uz vārda brīvību, neapdraud privāto plašsaziņas līdzekļu pastāvēšanu mediju tirgū un nav pretrunā godīgai konkurencei. Par pašvaldību plašsaziņas līdzekļu lomu un saturu publiskajā telpā ir pausti dažādi viedokļi. Lai gan ir saprotams privāto plašsaziņas līdzekļu īpašnieku viedoklis par to, ka pašvaldību plašsaziņas līdzekļu izdevējiem nebūtu jāie…
Pojednana różnorodność – koncepcja pokojowej koegzystencji na przykładzie Górnego Śląska w myśli abp. Alfonsa Nossola
2019
Pluralizm współczesnych społeczeństw w zglobalizowanym świecie nieodłącznie wiąże się z napięciami, konfliktem interesów i rozbieżnymi poglądami dotyczącymi postrzegania świata i praktycznych zachowań ludzi. W kontekście złożoności relacji międzyludzkich oraz różnorodności wyrażającej się na płaszczyźnie politycznej, kulturowej, religijnej, społecznej i światopoglądowej rodzi się pytanie o możliwość pokojowej koegzystencji ludzi i grup społecznych. Odpowiedzią na to pytanie jest idea pojednanej różnorodności, która zrodziła się w konkretnym kontekście historycznym na Górnym Śląsku, a jej wypracowania, rozwinięcia i zastosowania do złożonych problemów społeczno-kulturowo-religijnych dokonał …
Data from: The interplay of landscape composition and configuration: new pathways to manage functional biodiversity and agro-ecosystem services acros…
2019
[Usage Notes] Martin et al_2019_datatables Data used in Martin et al. (2019) compiled from 49 studies and 1,515 landscapes across Europe. Includes data on the abundance of arthropod species per site and data on pollination, natural pest control and yields in crops across Europe. Martin et al_2019_data tables_300319.xlsx Martin et al_2019_traits database Functional traits data for 2088 species (morphospecies, individuals) from 144 arthropod families sampled in agricultural landscapes across Europe. All traits are categorical and based on published literature or expert knowledge. They are described in Table 1 and Appendix S1 of Martin et al. (2019). The traits included are: feeding habit ('Fu…
Maintenance of genetic diversity in cyclic populations - a longitudinal analysis in Myodes glareolus
2012
Conspicuous cyclic changes in population density characterize many populations of small northern rodents. The extreme crashes in individual number are expected to reduce the amount of genetic variation within a population during the crash phases of the population cycle. By long-term monitoring of a bank vole (Myodes glareolus) population we show that despite the substantial and repetitive crashes in the population size, high heterozygosity is maintained throughout the population cycle. The striking population density fluctuation in fact only slightly reduced the allelic richness of the population during the crash phases. Effective population sizes of vole populations remained also relativel…
Flamingo studies: a general introduction.
2017
28 pages; International audience; Flamingos are among the most amazing birds in the world. The first part of this chapter provides a general introduction to the various extant species of flamingos, including their physical descriptions, unique characteristics, numbers in the wild, and geographical distributions. The second part depicts a brief history of the discovery and scientific study of flamingos, from the earlier accounts dating from the 16th century to the development of the first long-term studies of banded populations in the second half of the 20th century. The third and final part of this chapter offers some perspectives for future research.
Maintenance of genetic diversity in cyclic populations—a longitudinal analysis in Myodes glareolus
2012
Conspicuous cyclic changes in population density characterize many populations of small northern rodents. The extreme crashes in individual number are expected to reduce the amount of genetic variation within a population during the crash phases of the population cycle. By long-term monitoring of a bank vole (Myodes glareolus) population, we show that despite the substantial and repetitive crashes in the population size, high heterozygosity is maintained throughout the population cycle. The striking population density fluctuation in fact only slightly reduced the allelic richness of the population during the crash phases. Effective population sizes of vole populations remained also relative…
Validation of a scale of attention to diversity for university teachers
2021
espanolEs tarea de las universidades afrontar los grandes retos de la educacion superior del siglo XXI creando politicas y practicas de atencion a la diversidad como parte de su responsabilidad social. Por lo que se hace imprescindible contar con instrumentos validados para conocer las actitudes y practicas educativas en atencion a la diversidad desarrolladas por el profesorado de estas instituciones. Este articulo tiene como objetivo presentar el proceso de construccion y validacion de la Escala de Creencias, Actitudes y Practicas de Atencion a la Diversidad (CAPA-PU) para Profesorado Universitario elaborada para tal fin. Esta ha sido aplicada, siguiendo un metodo de encuesta con un diseno…
Supplementary material 2 from: Burkhard B, Maes J, Potschin-Young MB, Santos-Martín F, Geneletti D, Stoev P, Kopperoinen L, Adamescu CM, Adem Esmail …
2018
ESMERALDA Workshops overview