Do small protected habitat patches within boreal production forests provide value for biodiversity conservation? A systematic review protocol

Häkkilä, Matti; Savilaakso, Sini; Johansson, Anna; Sandgren, Terhi; Uusitalo, Anne; Mönkkönen, Mikko; Puttonen, Pasi

doi:10.1186/s13750-019-0176-0

Cited by 3 publications

(10 citation statements)

References 29 publications

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“…The ROSES form is included as an Additional file 1. All the deviations from the a priori systematic review protocol [36] are reported and explained below.…”

Section: Methodsmentioning

confidence: 99%

“…After the publication of our systematic review protocol [36] we noticed some mistakes in the search string and few changes were made. The retention term was Simplified theory of change on the contribution of different actions to maintain or increase biodiversity in production forests to counterbalance the effects of forest harvesting mistakenly included in the search string when the protocol was prepared for publication after the peer review.…”

Section: Deviations From the Protocol Search Stringmentioning

confidence: 99%

“…In internet searches, one addition to the search method was made compared to the protocol [36], as no citations or patents were considered in Google Scholar.…”

Section: Internet Searchesmentioning

confidence: 99%

“…Because of limited time resources, all studies were assessed by one person and their decision checked by another person resulting in a small deviation of the protocol [36] as double-blind assessment was not used.…”

Section: Validity Assessmentmentioning

confidence: 99%

“…1) and PICO-based search terms were defined and factors potentially creating heterogeneity discussed. Further details of the stakeholder engagement are provided in the protocol [36].…”

Section: Introductionmentioning

confidence: 99%

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Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and community composition? A systematic review

et al. 2021

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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, abundance, and community composition? Methods Both peer-reviewed and grey literature were searched from bibliographical databases, organizational websites and internet search engines in English, Finnish, Swedish and Russian. Articles were screened at two stages (title/abstract and full text) and the validity of the included studies were assessed. Screening and validity assessment were based on predetermined criteria. After data extraction, narrative and quantitative syntheses were conducted. Influences of effect modifiers were tested, and sensitivity analyses were conducted. Review findings During the searches 19,458 articles were found. After duplicate removal and title/abstract screening 336 articles remained. During full text screening 41 articles were included and 35 of them (174 studies) were included in narrative synthesis. 28 articles with 127 studies had suitable data for meta-analysis. SPHPs had significantly higher species richness compared to production forests. When compared to natural forests, there was no significant difference. Forest management in areas surrounding SPHPs did not have impact on species richness of these patches. Individual abundance was significantly higher in SPHPs compared to natural or production forests. There was significantly more dead wood in SPHPs compared to production forests, but when compared to natural forests there was no significant difference. Community composition was different between SPHPs and both production and natural forests. Conclusions The findings of this review show that small protected patches within production forests are important part of biodiversity conservation. They cannot substitute larger protected areas but supplement the protected area network. However, there were gaps both in geographical distribution of the studies as well as in the selection of target species of the studies. Therefore, generalization of the results must be done carefully.

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“…The ROSES form is included as an Additional file 1. All the deviations from the a priori systematic review protocol [36] are reported and explained below.…”

Section: Methodsmentioning

confidence: 99%

Section: Deviations From the Protocol Search Stringmentioning

confidence: 99%

“…In internet searches, one addition to the search method was made compared to the protocol [36], as no citations or patents were considered in Google Scholar.…”

Section: Internet Searchesmentioning

confidence: 99%

Section: Validity Assessmentmentioning

confidence: 99%

“…1) and PICO-based search terms were defined and factors potentially creating heterogeneity discussed. Further details of the stakeholder engagement are provided in the protocol [36].…”

Section: Introductionmentioning

confidence: 99%

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Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and community composition? A systematic review

et al. 2021

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Effectiveness of conservation measures to support biodiversity in boreal timber-production forests

Tange,

Sjølie,

Austrheim

2024

Silva Fenn

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Large parts of the boreal forest ecosystems have been greatly affected by human use, and the current timber-oriented forest management practice that dominates boreal forests is proven to cause biodiversity and ecosystem services declines. These negative effects are mitigated in various ways, including in-situ measures implemented upon harvest. The measures comprise trade-offs between economic and ecological aims; thus, requiring solid knowledge of their effectiveness. However, comprehensive literature review of the effectiveness of such measures is scarce. We aim to fill part of this void by reviewing the scientific literature that have gauged effects of four in-situ conservation measures: green tree retention (GTR), patch retention (PR), dead wood retention (DW) and riparian buffer zones (RB). Two outcomes were considered, species richness and species abundance across taxa. From a total of 3012 initial papers, 48 met our inclusion criteria that generated 238 unique results. Results were grouped according to control. 178 studies used mature, unlogged forest as control. Out of those, 68% of the findings were not significant, i.e., suggesting no significant impact of harvest with biodiversity measures on species richness and species abundance compared to no harvest. Eighteen percent of the observations showed negative effects and 14% of the observations showed positive effects compared to no harvest. Sixty studies used harvest with no measures as control, of which 45% showed significant positive effects, meaning that compared to harvest with no measures, harvest with conservation measures has positively effects on species richness and abundance. However, 43% of the studies found no significant effect of the implemented conservation measures compared to harvest with no measures taken. The relatively few significant results reported restrain distinct conclusions on the effectiveness of the assessed conservation measures, but some degree of conservation measure is likely to have positive effects on biodiversity in timber-production forest. However, the scientific basis does not allow for pointing to threshold levels. Higher transparency of study design and statistical results would allow us to include more studies. There is a clear need for more research of effectiveness of common conservation measures in timber-production forests in order to strengthen the knowledge basis. In particular, there are few studies that employ harvest without any conservation measure as control. This is pivotal knowledge for forest managers as well as for policymakers for preserving biodiversity and the ecosystems in forest.

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Mapping Forest Stability within Major Biomes Using Canopy Indices Derived from MODIS Time Series

et al. 2022

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Deforestation and forest degradation from human land use, including primary forest loss, are of growing concern. The conservation of old-growth and other forests with important environmental values is central to many international initiatives aimed at protecting biodiversity, mitigating climate change impacts, and supporting sustainable livelihoods. Current remote-sensing products largely focus on deforestation rather than forest degradation and are dependent on machine learning, calibrated with extensive field measurements. To help address this, we developed a novel approach for mapping forest ecosystem stability, defined in terms of constancy, which is a key characteristic of long-undisturbed (including primary) forests. Our approach categorizes forests into stability classes based on satellite-data time series related to plant water–carbon relationships. Specifically, we used long-term dynamics of the fraction of photosynthetically active radiation intercepted by the canopy (fPAR) and shortwave infrared water stress index (SIWSI) derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) for the period 2003–2018. We calculated a set of variables from annual time series of fPAR and SIWSI for representative forest regions at opposite ends of Earth’s climatic and latitudinal gradients: boreal forests of Siberia (southern taiga, Russia) and tropical rainforests of the Amazon basin (Kayapó territory, Brazil). Independent validation drew upon high-resolution Landsat imagery and forest cover change data. The results indicate that the proposed approach is accurate and applicable across forest biomes and, thereby, provides a timely and transferrable method to aid in the identification and conservation of stable forests. Information on the location of less stable forests is equally relevant for ecological restoration, reforestation, and proforestation activities.

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Do small protected habitat patches within boreal production forests provide value for biodiversity conservation? A systematic review protocol

Cited by 3 publications

References 29 publications

Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and community composition? A systematic review

Are small protected habitat patches within boreal production forests effective in conserving species richness, abundance and community composition? A systematic review

Effectiveness of conservation measures to support biodiversity in boreal timber-production forests

Mapping Forest Stability within Major Biomes Using Canopy Indices Derived from MODIS Time Series

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