Assemblages of native bryophytes in secondary forests with introduced Quercus rubra

Paź

Frelich

et al. 2017

Global Change Biology

641

403

Although numerous species distribution models have been developed, most were based on insufficient distribution data or used older climate change scenarios. We aimed to quantify changes in projected ranges and threat level by the years 2061-2080, for 12 European forest tree species under three climate change scenarios. We combined tree distribution data from the Global Biodiversity Information Facility, EUFORGEN, and forest inventories, and we developed species distribution models using MaxEnt and 19 bioclimatic variables. Models were developed for three climate change scenarios-optimistic (RCP2.6), moderate (RCP4.5), and pessimistic (RPC8.5)-using three General Circulation Models, for the period 2061-2080. Our study revealed different responses of tree species to projected climate change. The species may be divided into three groups: "winners"-mostly late-successional species: Abies alba, Fagus sylvatica, Fraxinus excelsior, Quercus robur, and Quercus petraea; "losers"-mostly pioneer species: Betula pendula, Larix decidua, Picea abies, and Pinus sylvestris; and alien species-Pseudotsuga menziesii, Quercus rubra, and Robinia pseudoacacia, which may be also considered as "winners." Assuming limited migration, most of the species studied would face a significant decrease in suitable habitat area. The threat level was highest for species that currently have the northernmost distribution centers. Ecological consequences of the projected range contractions would be serious for both forest management and nature conservation.

mentioning

confidence: 99%

How much does climate change threaten European forest tree species distributions?

Paź

Frelich

et al. 2017

Global Change Biology

641

403

“…These mechanisms limit species richness and diversity in tree stands with Q. rubra (Marozas, Straigyte, & Sepetiene, 2009;Chmura, 2013;Woziwoda, Kopeć, & Witkowski, 2014). However, it has neutral impacts on epiphytic bryophytes (Woziwoda, Staniaszek-Kik, & Stefańska-Krzaczek, 2016). Despite its high impact on vegetation, well described in the above-mentioned papers, information about its spread and colonization opportunities is scarce.…”

mentioning

confidence: 99%

Limited dispersal prevents Quercus rubra invasion in a 14‐species common garden experiment

Jagodziński

Diversity and Distributions

Horodecki

et al. 2017

Aim Information about the importance of propagule pressure and habitat invasibility in invasion success of dispersal‐limited species is scarce. We aimed to assess invasiveness of Quercus rubra within stands of 14 tree species, and the effects of distance from propagule source on invasion success, to highlight limiting factors for further application in nature conservation. Location Siemianice Experimental Forest—a common garden forest experiment with 14 tree species, western Poland. Methods We investigated aboveground biomass, leaf area index and density of Q. rubra natural regeneration within 53 experimental plots, as well as distance from the seed source. We also analysed light availability changes between 2005 and 2015 on plots of each tree species. We used multiple linear regression and variable importance to quantify the effect of each factor. Results All factors tested influenced ecological success of Q. rubra. Invasion success decreased with increasing distance from the seed source and decreasing light availability and was higher within stands of pioneer tree species. Leaf area index depended mostly on tree stand species, density depended on distance from the propagule source and biomass depended on both. Light availability explained 7.2%–30.2% of the variance; tree species—from 36.1% to 57.4%; and distance from the propagule source—from 12.4% to 56.7%. Main conclusions Tree stand species, light availability and distance from the propagule source influence ecological success of invasive Q. rubra, displaying their importance for spread of this species. These factors are controllable in forest/conservation management and may be used to prevent Q. rubra invasion. Planting late‐successional tree species that cast dense shade, maintaining canopy closure and removing fruiting trees from surrounding more invasible stands may prevent Q. rubra invasion.

“…The necessary water resources were preserved by the epigeic mosses, growing in pine forests as a dense wefts, e.g. Pleurozium schreberi and Pseudoscleropodium purum, or compact tall turfs -Dicranum polysetum, Polytrichastrum fromosum (Woziwoda et al 2017), and the water was available to lingonberry rhizomes rooted in super cial soil layers (Ritchie 1955).…”

Section: Discussionmentioning

confidence: 99%

Forest land use discontinuity and northern red oak Quercus rubra introduction change biomass allocation and life strategy of lingonberry Vaccinium vitis-idaea

Woziwoda

Jagodziński

2020

Preprint

Self Cite

Background: Multi-purpose use of forests in a sustainable way forces a recognition of how alien woody species introduction in forests with different land use history affect native plants other than trees. Lingonberry Vaccinium vitis-idaea is an important understory component of temperate and boreal forests and provider of valuable non-wood forest products. Here we studied effects of land use changes and introduction of Northern red oak Quercus rubra on lingonberry in a mesic Scots pine (Pinus sylvestris) forests (in central Poland). We measured lingonberry cover, height of shoots, biomass of stems and leaves, and fruit productivity. Shoots were collected within 200 research plots located in recent and ancient Scots pine forests, with and without Q. rubra.Results: We found that V. vitis-idaea reached lower cover, aboveground biomass and fruit production in recent than ancient forests and in forests with than without Q. rubra. The fruit production in recent pine forest was only 2% of that reported in ancient pine forest, and V. vitis-idaea did not reproduce generatively in forests with Q. rubra. Biomass and carbon sequestration of V. vitis-idaea in forests with alien (invasive) tree decreased by 75% compared to ancient pine forest. Effects were also clear at the individual shoot level – in less suitable conditions we found taller heights and higher biomass allocation into stems than foliage. Biomass allocation in fruiting and non-fruiting shoots in pine forests was also different – less of the dry biomass of fruiting shoots was allocated to leaves than to stems.Conclusions: In the age of high interest in ecosystem services and discussions about usage of alien tree species as alternatives in forest management, our results clearly indicate disruption of ecosystem services provided by V. vitis-idaea in the presence of Q. rubra. Lingonberry benefited from the continuity of forest land use, however, regardless of land-use legacy, alien tree introduction, led to decline in abundance of species crucial for ecosystem functioning. Therefore, to maintain valuable native species and for conservation of ecosystem services delivery, we suggest limiting the introducing Q. rubra in areas with abundant V. vitis-idaea, especially in forests with continuous forest land-use history.