0000000001169232
AUTHOR
Matti Häkkilä
showing 39 related works from this author
Additional file 8 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European R…
2021
Additional file 8. Results from the comparison of abundance between even-aged and natural forest when high risk studies are excluded from the analysis.
Additional file 10 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and co…
2021
Additional file 10. Results of the analysis of dead wood volume without high risk studies.
What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European Russia? A systematic r…
2021
Abstract Background Forest harvesting changes forest habitat and impacts forest dependent species. Uneven-aged management is often considered better for biodiversity than even-aged management, but there is an ongoing discourse over the benefits and disadvantages of different silvicultural systems. This systematic review contributes to the public discussion and provides evidence for policy making by synthesising current evidence on impacts of even-aged and uneven-aged forest management on biodiversity in boreal forests of Fennoscandia and European Russia. In this review even-aged and uneven-aged forest management are compared directly to each other as well as to natural forest to provide a b…
Alternative reproductive tactics and the propensity of hybridization
2009
One explanation for hybridization between species is the fitness benefits it occasionally confers to the hybridizing individuals. This explanation is possible in species that have evolved alternative male reproductive tactics: individuals with inferior tactics might be more prone to hybridization provided it increases their reproductive success and fitness. Here we experimentally tested whether the propensity of hybridization in the wild depends on male reproductive tactic in Calopteryx splendens damselflies. Counter to our expectation, it was males adopting the superior reproductive tactic (territoriality) that had greatest propensity to hybridize than males adopting the inferior tactics (…
What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European Russia? : A systematic…
2019
Abstract Background Biodiversity is vital for human well-being, but is threatened by human actions world-wide. In the boreal zone, harvesting and management of forests on an industrial scale is the most important factor driving habitat change and degradation. Over time different forest management regimes have been implemented but their impact on biodiversity at different spatial and temporal scales has not been systematically reviewed although non-systematic reviews on the topic exist. The aim of this article is to describe a protocol for a systematic review to synthesise and compare the impacts of two different forest management systems on biodiversity at different spatial and temporal sca…
Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and community composition? :…
2021
Abstract Background In boreal zone forest management is changing and degrading forest habitats, which has caused declines in biodiversity. To mitigate these harmful effects in production forests, small-scale habitats with high biodiversity values have been protected within them. These habitats include woodland key habitats, and other small habitat patches protected by voluntary conservation actions. In this systematic review we synthesize the evidence on the value of small protected habitat patches (SPHP) within production forest landscapes for biodiversity. Review question: Are small protected habitat patches within boreal production forests effective in conserving species richness, abunda…
Habitat quality is more important than matrix quality for bird communities in protected areas
2018
Protected areas are meant to preserve native local communities within their boundaries, but they are not independent from their surroundings. Impoverished habitat quality in the matrix might influence the species composition within the protected areas through biotic homogenization. The aim of this study was to determine the impacts of matrix quality on species richness and trait composition of bird communities from the Finnish reserve area network and whether the communities are being subject of biotic homogenization due to the lowered quality of the landscape matrix. We used joint species distribution modeling to study how characteristics of the Finnish forest reserves and the quality of t…
Degradation in landscape matrix has diverse impacts on diversity in protected areas.
2017
Introduction: A main goal of protected areas is to maintain species diversity and the integrity of biological assemblages. Intensifying land use in the matrix surrounding protected areas creates a challenge for biodiversity conservation. Earlier studies have mainly focused on taxonomic diversity within protected areas. However, functional and especially phylogenetic diversities are less studied phenomena, especially with respect to the impacts of the matrix that surrounds protected areas. Phylogenetic diversity refers to the range of evolutionary lineages, the maintenance of which ensures that future evolutionary potential is safeguarded. Functional diversity refers to the range of ecologic…
Do small protected habitat patches within boreal production forests provide value for biodiversity conservation? : A systematic review protocol
2019
Background Forest harvesting is the main driver of habitat degradation and biodiversity loss in forests of the boreal zone. To mitigate harmful effects, small-scale habitats with high biodiversity values have been protected within production forests. These include woodland key habitats, and other small-scale habitat patches protected by voluntary conservation action. This article describes a protocol for a systematic review to synthesize the value of small habitat patches left within production landscapes for biodiversity. The topic for this systematic review arose from a discussion with the Finnish forestry sector and was further defined in a stakeholder workshop. Research question: Do sma…
MOESM3 of Do small protected habitat patches within boreal production forests provide value for biodiversity conservation? A systematic review protoc…
2019
Additional file 3. Test list. A list of articles to test the performance of the search string.
Increasing human environmental footprint does not lead to biotic homogenization of forest bird communities in northern USA
2023
Studies have shown negative impacts of increased human pressures on biodiversity at local (alpha-diversity) and regional (gamma-diversity) scales. However, the diversity between local sites (beta-diversity) has received less attention. This is an important shortcoming since beta- diversity acts as a linkage between the local and regional scales. Decreased beta- diversity means that local sites lose their distinctiveness, becoming more similar to each other. This process is known as biotic homogenization. However, the mechanisms causing biotic homogenization have not been fully studied nor its impacts on different facets of biodiversity. We examined if land- use change due to human actions c…
Additional file 9 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and com…
2021
Additional file 9. Funnel plots.
Additional file 7 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European R…
2021
Additional file 7. Results from sensitivity analyses without studies with imputed SDs.
MOESM1 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European Russia? A sy…
2019
Additional file 1. Stakeholder organisations (A list of stakeholder organisations invited to the stakeholder workshop).
MOESM1 of Do small protected habitat patches within boreal production forests provide value for biodiversity conservation? A systematic review protoc…
2019
Additional file 1. Stakeholder organizations. A list of stakeholder organizations invited to the stakeholder workshop. The ones with bold participated in the workshop.
MOESM3 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European Russia? A sy…
2019
Additional file 3. Test list (List of articles to test the performance of the search).
Additional file 9 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European R…
2021
Additional file 9. Funnel plots with trim and fill-tests to detect publication bias.
Additional file 2 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and com…
2021
Additional file 2. Corrected test list. The test list modified after publication of the review protocol.
MOESM5 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European Russia? A sy…
2019
Additional file 5. Data extraction spreadsheet.
Additional file 5 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European R…
2021
Additional file 5. Metadata and validity assessment uneven-aged forest. File includes metadata of different studies, data on effect size modifiers and validity assessment.
Additional file 6 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European R…
2021
Additional file 6. Metadata and validity assessment even-aged forest. File includes metadata of different studies, data on effect size modifiers and validity assessment.
MOESM2 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European Russia? A sy…
2019
Additional file 2. ROSES form.
Additional file 2 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European R…
2021
Additional file 2. Search strategy and results. A list of all sources searched with information on search dates, languages, search strings/terms, search settings/restrictions, the number of hits received, and the number of articles included on each stage of the screening.
MOESM2 of Do small protected habitat patches within boreal production forests provide value for biodiversity conservation? A systematic review protoc…
2019
Additional file 2. ROSES form.
MOESM4 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European Russia? A sy…
2019
Additional file 4. The performance of the search string.
Additional file 6 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and com…
2021
Additional file 6. List of articles included by title/abstract. There are different sheets for articles included by full text, articles included by full text with independent data (articles in narrative synthesis), articles excluded by full text (with reasons for exclusion) and unretrievable articles.
Additional file 4 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and com…
2021
Additional file 4. Search strings. Full search strings in English and Russian, and simplified search strings for Google and Google Scholar in English, Russian, Swedish and Finnish.
Additional file 5 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and com…
2021
Additional file 5. Search strategy and results. A list of all sources searched with information on search dates, languages, search strings/terms, search settings/restrictions, the number of hits received, and the number of articles included on each stage of the screening.
Additional file 1 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European R…
2021
Additional file 1. ROSES form for systematic review reports.
Additional file 1 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and com…
2021
Additional file 1.ROSES form for systematic review reports.
Additional file 4 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European R…
2021
Additional file 4. List of articles included by title/abstract. There are different sheets for articles included by full text, articles included by full text with independent data (articles in narrative synthesis), articles excluded by full text (with reasons for exclusion) and unretrievable articles.
Additional file 11 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and co…
2021
Additional file 11. Summary information about similarity of species composition.
Additional file 3 of What are the effects of even-aged and uneven-aged forest management on boreal forest biodiversity in Fennoscandia and European R…
2021
Additional file 3. Translations of the search string. Full search strings and simplified search strings for Google and Google Scholar in English, Swedish, Russian and Finnish.
Additional file 8 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and com…
2021
Additional file 8. R script for meta-analyses.
Additional file 3 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and com…
2021
Additional file 3. Corrected performance of the search string. The performance of the search string after modifications of the search string and test list.
Additional file of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and commu…
2021
Additional file of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and community composition? A systematic review
Additional file 7 of Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and com…
2021
Additional file 7. Metadata and validity assessment. File includes metadata of different studies, data on effect size modifiers and validity assessment for each study.
MOESM4 of Do small protected habitat patches within boreal production forests provide value for biodiversity conservation? A systematic review protoc…
2019
Additional file 4. The performance of the search string. Document of testing search string in search engines.
Biotic homogenization of forest bird communities under human influence
2018
Human actions impact biodiversity worldwide. Specialist species are particularly sensitive to environmental degradation whereas generalists may even benefit from habitat changes. As a consequence, specialists are declining while generalists are increasing and, therefore, communities become more similar. This phenomenon is known as biotic homogenization. In boreal forests logging and forest management is the most important factor changing the native habitat. In this thesis I studied if human actions are homogenizing boreal forest bird communities. I further studied if protected areas can maintain their diversity and, thus, prevent homogenization. Through the individual studies, biodiversity …