Search results for "puut"
showing 10 items of 126 documents
Predicting habitat suitability for Ixodes ricinus and Ixodes persulcatus ticks in Finland
2022
AbstractBackgroundTicks are responsible for transmitting several notable pathogens worldwide. Finland lies in a zone where two human-biting tick species co-occur:IxodesricinusandIxodespersulcatus. Tick densities have increased in boreal regions worldwide during past decades, and tick-borne pathogens have been identified as one of the major threats to public health in the face of climate change.MethodsWe used species distribution modelling techniques to predict the distributions ofI.ricinusandI.persulcatus,using aggregated historical data from 2014 to 2020 and new tick occurrence data from 2021. By aiming to fill the gaps in tick occurrence data, we created a new sampling strategy across Fin…
Hyötyä ja kaunistusta : Keski-Suomen Emäntäkoulun historiallinen puutarha
2014
Tämä pro gradu -tutkielma käsittelee Keski-Suomen Emäntäkoulun historiallista puutarhaa ja puistomaista ympäristöä. Emäntäkoulu perustettiin Mankolan tilalle lähelle Jyväskylän keskustaa, ja maataloushallituksen arkkitehti Jalmari Peltosen suunnittelema koulurakennus valmistui vuonna 1932. Koulussa opiskeltiin monipuolisia talouden- ja kodinhoidon töitä, joiden katsottiin kuluvan maalaistalon emännälle. Emäntäkouluun kuului laaja koulupuutarha, jolla oli tärkeä asema opetuksessa ja sisäoppilaitoksen ruokatalouden ylläpitämisessä. Emäntäkoulun käyneiden naisten kautta kotipuutarhat ja puutarhaviljelys levisivät maaseudulle. Mankolan alue, johon tutkimuskohde sisältyy, on suojeltu valtakunnal…
Valmistalon evoluutio suomalaisen puutaloteollisuuden mainoskuvastoissa 1980-2000-luvuilla
2013
Tutkielman aiheena on suomalaisten puurakenteisten valmistalojen arkkitehtuuri ja kehitys 1980-luvulta 2000-luvulle. Koska aihetta ei ole tutkittu, tutkielman tavoitteena on saada ilmiöstä kokonaiskuva. Valmistalot ovat näkyvä osa suomalaista rakennettua ympäristöä, sillä teollisesti tuotetuista omakotitaloista tuli tutkittavana ajanjaksona suosituin omakotirakentamisen muoto. Tutkimusaineistoon kuuluu 45 talokuvastoa puutaloteollisuuden eri toimijoilta sekä kolme toimitettua talo-opasta. Tutkielma edustaa laadullista tutkimusta ja pyrkii ilmiön kokonaisvaltaiseen ymmärtämiseen. Analyysi tähtää valmistalojen julkisivuarkkitehtuurin piirteiden tunnistavaan ja nimeävään tarkasteluun sekä vaik…
Yrttitarhoja ja kasvimaita : kasveja, ihmisiä ja historiaa
2020
Palkittu tietokirja Malva ja mulperi: Poimintoja entisajan puutarhoista esittelee menneisyyden puutarhoja ja pohjustaa monien hyvin tuttujen ja arkistenkin kasvien historiallisia vaiheita aina 1400-luvulta 1800-luvulle saakka. Malva ja mulperi on yleistajuinen ja monipuolisesti ja kauniisti kuvitettu tietokirja, joka pohjaa kasviarkeologi Teija Alangon väitöstutkimukseen. nonPeerReviewed
Spore production monitoring reveals contrasting seasonal strategies and a trade‐off between spore size and number in wood‐inhabiting fungi
2023
1. Traits related to reproduction and dispersal drive the assembly and dynamics of species communities and can explain and predict how species respond to habitat loss and fragmentation and to the changing climate. For fungi, such links remain poorly known. 2. We examine how spore production rate, a key demographic trait, is influenced by the interaction between environmental conditions and species traits. We monitored the spore production of 97 wood-inhabiting fungal species on 107 decaying logs for two years and analyzed the data with a hierarchical community model. 3. Our analysis demonstrates clear species differences in seasonal patterns, with spring and summer release dominating in per…
Predicting the risk of extinction from shared ecological characteristics
2005
Understanding the ultimate causes of population declines and extinction is vital in our quest to stop the currently rampant biodiversity loss. Comparison of ecological characteristics between threatened and nonthreatened species may reveal these ultimate causes. Here, we report an analysis of ecological characteristics of 23 threatened and 72 nonthreatened butterfly species. Our analysis reveals that threatened butterflies are characterized by narrow niche breadth, restricted resource distribution, poor dispersal ability, and short flight period. Based on the characteristics, we constructed an ecological extinction risk rank and predicted which of the currently nonthreatened species are at …
Wood-inhabiting fungal responses to forest naturalness vary among morpho-groups
2021
The general negative impact of forestry on wood-inhabiting fungal diversity is well recognized, yet the effect of forest naturalness is poorly disentangled among different fungal groups inhabiting dead wood of different tree species. We studied the relationship between forest naturalness, log characteristics and diversity of different fungal morpho-groups inhabiting large decaying logs of similar quality in spruce dominated boreal forests. We sampled all non-lichenized fruitbodies from birch, spruce, pine and aspen in 12 semi-natural forest sites of varying level of naturalness. The overall fungal community composition was mostly determined by host tree species. However, when assessing the …
Growth form matters – Crustose lichens on dead wood are sensitive to forest management
2022
Lichens have a vital role in forest ecosystems and they are a threatened group in boreal forests. However, the conservation ecology of the total lichen community has very rarely been studied. Here we studied lichen species and communities, including macrolichens (=foliose and fruticose growth forms) and rarely studied crustose li-chens, on decaying wood in boreal spruce-dominated forests in Finland. We also studied obligate lignicoles that grow only on dead wood and are mostly crustose in growth form. Species richness and community composition were examined on decaying logs and natural or cut stumps of Picea abies at different decay stages (2-5) in 14 stands, half of which were natural or s…
Jeffrey Eugenides: Oikukkaat puutarhat
2019
Kirja-arvostelu teoksesta Jeffrey Eugenides: Oikukkaat puutarhat (Fresh Complaint). Suom. Arto Schroderus. Kustannusosakeyhtiö Otava 2019. 303 sivua nonPeerReviewed
GIS-data related route optimization, hierarchical clustering, location optimization, and kernel density methods are useful for promoting distributed …
2019
Currently, geographic information system (GIS) models are popular for studying location-allocation-related questions concerning bioenergy plants. The aim of this study was to develop a model to investigate optimal locations for two different types of bioenergy plants, for farm and centralized biogas plants, and for wood terminals in rural areas based on minimizing transportation distances. The optimal locations of biogas plants were determined using location optimization tools in R software, and the optimal locations of wood terminals were determined using kernel density tools in ArcGIS. The present case study showed that the utilized GIS tools are useful for bioenergy-related decision-maki…