Search results for " Litter"

Effects of traditional forest management on carbon storage in a Mediterranean holm oak (Quercus ilex L.) coppice

2018

Abstract: In the last decade, there has been increased interest in measuring and modeling storage in the five forest carbon pools: the aboveground and belowground biomass (living biomass), the deadwood and litter (dead biomass), and the soil (soil organic matter). In this paper, we examined carbon storage in a holm oak coppice stand in the Madonie Mountains in Sicily (Italy), which is a typical case of managed coppice stands. Today, traditional coppice practices are only applied to a small number of forested areas in Sicily, such as the selected site, because of the decline in demand for wood and charcoal. The dendrometric parameters of the stands were recorded, and silvicultural indices we…

Dematiaceous Hyphomycetes from Quercus suber litter

2011

Effects of temperature and moisture fluctuations on an experimental soil microarthropod community

2001

Summary We established an experiment in microcosms with coniferous forest humus and birch leaf litter for testing the effects of constant vs. diurnally fluctuating temperature and uniform vs. varying moisture, on the population densities and species richness of Collembola and Mestostigmata. These parameters and the vertical distribution of populations were analysed by layers (top, centre, bottom) at two samplings (weeks 10 and 27). The hypotheses were that populations of at least some species benefit from fluctuating microclimate, and that varying conditions permit more species to coexist than uniform conditions. At fluctuating temperature regime, four species and total Collembola were more…

Traumets rom : En analyse av Sofi Oksanens Utrenskning

2019

Masteroppgave nordisk språk og litteratur NO500 - Universitetet i Agder 2019 This thesis is an analysis of Sofi Oksanen’s novel Utrenskning [Purge] (2011), with a particular focus on what significance the various rooms convey in the narrative of trauma. Utrenskning relates stories of occupation, violence and abuse through three generations of Estonian women, and how this has led totrauma, fear, and damaged relationships. The study’s primary theory is that the novel interprets aspects of traumatic experiences through a spatial point of view. One distinctive feature of Utrenskning is that almost all of the action plays out within different rooms. The rooms have different functions for the nov…

Kan alle ha glede av samme bok? Hvordan kan analyse av tre forskjellige verk bidra til forståelse av all-alder-litteratur-begrepet?

2021

Master´s thesis in Primary Teacher Education The purpose of this master's thesis is to investigate how crossover fiction is understood through analyzes of three literary works. Therefore, the research question isas follows: How can we analyze three different works to contribute to an understanding of the concept of crossover fiction? I will use Erlend Loes Kurtby, Lisa Aisato's Livet -illustrertand Oscar K. and Dorte Karrebæks Lejrentoshed light on the topic. The theoretical basis for the thesis is the research of some selected people on crossover fiction -Jon Fosse, Åse Marie Ommundsen, Sandra Beckett, Barbra Wall,and Maria Nikolajeva. In addition to this, I use Wolfgang Iser's thoughts on…

Pool choice in a vertical landscape: Tadpole‐rearing site flexibility in phytotelm‐breeding frogs

2021

Abstract Many species of Neotropical frogs have evolved to deposit their tadpoles in small water bodies inside plant structures called phytotelmata. These pools are small enough to exclude large predators but have limited nutrients and high desiccation risk. Here, we explore phytotelm use by three common Neotropical species: Osteocephalus oophagus, an arboreal frog that periodically feeds eggs to its tadpoles; Dendrobates tinctorius, a tadpole‐transporting poison frog with cannibalistic tadpoles; and Allobates femoralis, a terrestrial tadpole‐transporting poison frog with omnivorous tadpoles. We found that D. tinctorius occupies pools across the chemical and vertical gradient, whereas A. fe…

Dematiaceous Hyphomycetes from Pantelleria Mediterranean maquis litter. Third contribution

2010

In the third contribution to the study of Pantelleria meditteranean maquis litter, thirteen species of Dematiaceous Hyphomycetes are found and described. Three of them are proposed as new species: Anungitea pseudoramosa, A. sibaensis and Subulispora insularis.

Case Studies of Macro-and Microplastics Pollution in Coastal Waters and Rivers: Is There a Solution With New Removal Technologies and Policy Actions?.

2020

This opinion paper on microplastics pollution has selected different aspects and case studies of micro and macro-plastic litter pollution in coastal waters, and rivers. We point out a discussion on this topic and ask ourselves if there is a solution to the global problem by developing new microplastics removal technologies as well as policy actions. The first two case studies are related with macroplastics marine litter in beaches, a third report describes a new simple sampling device for microplastics in coastal and nearshore areas, five case study assess microplastics pollution in worldwide coastal environments, sediments and catchments (India, Mexico, Australia, Europe and the Nordic Sea…

Impact of Plastic Debris on the Gut Microbiota of Caretta caretta From Northwestern Adriatic Sea

2021

Plastic pollution is nowadays a relevant threat for the ecological balance in marine ecosystems. Small plastic debris (PD) can enter food webs through various marine organisms, with possible consequences on their physiology and health. The loggerhead sea turtle (Caretta caretta), widespread across the whole Mediterranean Sea, is a “flagship species,” useful as indicator of the general pollution level of marine ecosystems. Ingested PD accumulate in the final section of turtles’ digestive tract before excretion. During their transit and accumulation, PD also interact with the residing microbial community, with possible feedback consequences on the host’s health. To explore the possible relati…

Root-induced tree species effects on the source/sink strength for greenhouse gases (CH4, N2O and CO2) of a temperate deciduous forest soil

2013

Through their leaf litter and throughfall water, tree species can have a pronounced influence on soil chemistry. However, there is little knowledge of species-specific root effects on greenhouse gas fluxes between forest soils and the atmosphere. By growing saplings of beech (Fagus sylvatica) and ash (Fraxinus excelsior) in monoculture or mixture at defined atmospheric and soil conditions in rhizotrons, we tested four hypotheses related to potential root-induced tree species effects on the uptake of CH4 and the emission of N2O and CO2 from the soil. This design excluded putative effects of leaf litter mineralisation on trace gas fluxes. Gas fluxes were measured biweekly using the closed cha…