Survival, growth and seed mass in a mixed tree species planting for Atlantic Forest restoration

Coelho, Geraldo Ceni; Benvenuti-Ferreira, Glaci; Schirmer, Jorge; Lucchese, Osório Antônio

doi:10.3934/environsci.2016.3.382

Cited by 7 publications

(4 citation statements)

References 32 publications

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“…Seed mass is a critical trait that profoundly influences a species' reproductive biology and ecology. In general, larger seeds with higher nutritional reserves tend to exhibit better survival during the seedling phase, especially in nutrient, light, or water-restricted environments (Coelho et al, 2016). Our study revealed A. spectabilis seed mass ranging from 2.18 to 6.84 g, similar to Pinus sylvestris, which reported seed mass between 7.23 and 14.2 g (Castro et al, 2008).…”

Section: Discussionsupporting

confidence: 50%

The pivotal role of water potential in phenology and seed germination of Abies spectabilis in the western Himalayan treeline region

Singh,

Mittal,

Tewari

et al. 2024

Front. For. Glob. Change

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Abies spectabilis (East Himalayan Fir), a dominant timber-producing species in the Himalayas, plays a dynamic role in ecological balance and sustains various habitats across temperate to subalpine altitudes. Himalayan montane forests express signs of changes in the growth, regeneration, and population density of forest tree species due to ongoing climate change, including its upper distribution limit. The research was conducted at 30°11´02˝N and 79°39′36˝E, ranging from 3,100 to 3,500 m asl elevation in the treeline ecotone of western Himalaya. The study presents a comprehensive perspective on how water availability and its intricate interactions with climatic and ecological variables shape the dynamics of treeline ecosystems. The study’s phytosociological analysis of treeline sites revealed the complex interplay between species composition, adaptability, and regeneration potential. The eco-physiological aspects of water balance were thoroughly explored, underscoring how plants employ various strategies to cope with changing water availability. The soil moisture content ranged from 32.17 to 73.50%. The dynamic nature of water potential (pre-dawn (ΨPD) and mid-day (ΨMD)) across seasons and years reflects and varies between −0.13 and − 1.25 MPa, the species’ ability to adjust and manage water balance according to environmental shifts. Osmotic potential at full turgor varied from −0.72 to −1.77 MPa, these adjustments are crucial for key life cycle events of vegetative and reproductive phases of species. The strong correlation of water potential (Ψ) and phenophases emphasizes the importance of water status in regulating these vital processes. Furthermore, the study delved into the maturation and germination processes, highlighting the significance of Ψ and moisture content in seed development and germination success. The maximum germination of 46.33% was observed when the seed moisture content was 30.90 ± 3.11%. The observed correlations between cone characteristics and seed parameters indicate the existence of trade-offs that impact seed size, weight, and germination capacity, contributing to the overall fitness of the species.

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Section: Discussionsupporting

confidence: 50%

The pivotal role of water potential in phenology and seed germination of Abies spectabilis in the western Himalayan treeline region

Singh,

Mittal,

Tewari

et al. 2024

Front. For. Glob. Change

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“…Surprisingly, none of the planted species were associated with the community composition as indicator species of the planted areas. The survival of seedlings in the early phase of restoration can be a critical factor for the success of active methods (Charles 2018; Gastauer et al 2020), especially for the late‐successional species, which tend to have significantly reduced survival rates in the first years (Ramírez‐Marcial et al 2010; Coelho et al 2016).…”

Section: Discussionmentioning

confidence: 99%

“…The successional classification was based on the criteria by Coelho et al (2016), and also consulting Ruschel et al (2007) and Carvalho (2003Carvalho ( -2014, considering three categories: pioneer, secondary, and climax species.…”

Section: Biotic Traitsmentioning

confidence: 99%

Restoring riparian forest in the Atlantic Forest: does planting seedlings make a difference?

Inhamuns

Rezende

Coelho

2021

Restoration Ecology

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Planting seedlings remains the most popular method of forest restoration, but passive restoration may become a new promise to reduce costs, despite concerns about its efficacy. Here, we present a study of a riparian forest recovery program in the Southern Atlantic Forest, Brazil. The objective was to compare planting seedlings and passive restoration eight years since restoration started and assess the influence of cattle presence in the restoring areas. We analyzed the structure, diversity, and composition of the woody community in the upper (canopy) and lower strata (understory) versus six environmental variables, including edaphic, landscape and geographical variables, restoration method (planting seedlings versus passive restoration), presence of cattle inside the restoration areas, and presence of adjacent crop plantations. Passive restoration generated a more diverse woody community and a higher proportion of climax and zoochoric species in the lower stratum than active restoration. Cattle presence was significantly associated with lower species richness and density of plants, as well as a higher proportion of pioneer species and low proportion of zoochoric and climax species. The results suggest that cattle can delay forest succession, besides reducing diversity. Passive restoration should be considered suitable for the region, and the efficiency of cattle exclusion needs to be improved.

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“…The negative correlation of K with diaspore size and positive with H max and D max (Figure 3) indicates that the investment in the early stage survival is associated with smaller plants but with greater ontogenetic flexibility in terms of growth, which may favour the use of scarce opportunities to obtain light. Larger seeds increase the probability of successful seedling establishment and plant persistence (Westoby et al, 2002;Moles et al, 2005), although it is associated with low survival and growth in later ontogenetic phase, at least in early successional stages (Coelho et al, 2016).…”

Section: Trait-growth Relationshipsmentioning

confidence: 99%

Relationship Between Growth Trajectories and Functional Traits for Woody Trees in a Secondary Tropical Forest

Scalon

Bohn

Coelho

et al. 2022

Front. For. Glob. Change

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Absolute growth rates change with tree size and age, shifting throughout species ontogeny. The study on interspecific variation in plant traits has generated important insights into the life-history strategies and their consequences for ecosystem functioning. However, it remains unknown to what extent – and even if – species’ functional traits are related to the variation in their growth trajectories. We set out to model growth trajectories of 45 woody species from the Brazilian Atlantic Forest in a secondary subtropical forest under regeneration, aiming to understand if species can be grouped by their growth patterns throughout ontogeny and if these groups could be classified in distinct ecological strategies based on key plant traits. We used a maximum likelihood estimation approach to predict growth trajectories using three ecologically relevant parameters [maximum growth rate (Gmax), diameter at maximum growth rate (Dopt), and the ontogenetic variability in growth rate (K)] followed by multivariate analyses to detect associations among phylogenetic relationships, plant traits, and growth parameters and classify species into growth pattern groups. Across species, growth trajectory parameters varied widely. The cluster analysis identified three distinct groups based on growth trajectories parameters, which were not functionally or ecologically well defined. Our findings supports the idea that traits describing plant size and tree shape, such as maximum height, canopy volume and height to diameter ratio, were generally the best predictors of species growth parameters throughout ontogeny, even though traits representing resource-use and reproductive strategies also played a significant role. Growth-trait framework can be understood as a continuum of multi-trait combinations where, at one end of the gradient, we find trees with higher growth rate and larger diameters supporting a voluminous canopy combined with lower investment in leaf tissue and smaller diaspore; at the other end, taller trees supporting a smaller canopy with higher investment in leaf tissue and longer diaspore. Ultimately, we have shown that tree architecture, leaf and reproductive traits significantly influence growth trajectory along tree ontogeny, which may be the reason why objectively grouping species based on growth-trajectories parameters is ineffective, at least in highly diverse secondary subtropical forests undergoing regeneration.

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Survival, growth and seed mass in a mixed tree species planting for Atlantic Forest restoration

Cited by 7 publications

References 32 publications

The pivotal role of water potential in phenology and seed germination of Abies spectabilis in the western Himalayan treeline region

The pivotal role of water potential in phenology and seed germination of Abies spectabilis in the western Himalayan treeline region

Restoring riparian forest in the Atlantic Forest: does planting seedlings make a difference?

Relationship Between Growth Trajectories and Functional Traits for Woody Trees in a Secondary Tropical Forest

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