Hydraulic tradeoffs underlie local variation in tropical forest functional diversity and sensitivity to drought

2022 ◽  
Author(s):  
Jehová Lourenço Junior ◽  
Brian J. Enquist ◽  
Georg von Arx ◽  
Julia Sonsin‐Oliveira ◽  
Kiyomi Morino ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Functional Diversity ◽  
Local Variation

scholarly journals Effects of disturbance intensity on species and functional diversity in a tropical forest

2012 ◽  
Vol 100 (6) ◽  
pp. 1453-1463 ◽  
Author(s):  
Geovana Carreño-Rocabado ◽  
Marielos Peña-Claros ◽  
Frans Bongers ◽  
Alfredo Alarcón ◽  
Juan-Carlos Licona ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Functional Diversity ◽  
Disturbance Intensity

scholarly journals Edge effects alter the role of fungi and insects in mediating functional composition and diversity of seedling recruits in a fragmented tropical forest

2020 ◽  
Vol 126 (7) ◽  
pp. 1181-1191
Author(s):  
Meghna Krishnadas ◽  
Kavya Agarwal ◽  
Liza S Comita
Keyword(s):  
Tropical Forest ◽  
Functional Diversity ◽  
Seed Size ◽  
Wood Density ◽  
Edge Effects ◽  
Seedling Recruitment ◽  
Light Availability ◽  
Canopy Openness ◽  
Dry Matter Content ◽  
Forest Fragments

Abstract Background and Aims In fragmented forests, proximity to forest edges can favour the establishment of resource-acquisitive species over more resource-conservative species. During seedling recruitment, resource-acquisitive species may benefit from either higher light availability or weaker top-down effects of natural enemies. The relative importance of light and enemies for recruitment has seldom been examined with respect to edge effects. Methods In a human-modified wet tropical forest in India, we first examined how functional traits indicative of resource-acquisitive vs. resource-conservative strategies, i.e. specific leaf area (SLA), leaf dry matter content, wood density and seed size, explained interspecific differences in densities of seedling recruits with distance to the forest edge. Then, we checked whether fungicide and insecticide treatments and canopy openness (proxy for light availability) explained edge effects on trait-mediated changes in seedling density. Finally, we examined whether light availability and natural enemy activity explained edge effects on functional diversity of seedling recruits. Key Results Up to 60 m from edges, recruit densities increased with decreasing seed size, but not at 90–100 m, where recruit densities increased with higher SLA. Trait-mediated variation in recruit densities changed with pesticides only at 90–100 m: compared with control plots, fungicide increased recruit densities for low SLA species and insecticide increased smaller seeded species. For SLA, wood density and seed size, functional diversity of recruits was higher at 90–100 m than at 0–5 m. At 90–100 m, fungicide decreased functional diversity for SLA and insecticide reduced seed size diversity compared with control plots. Canopy openness explained neither variation in recruit density in relation to traits nor functional diversity. Conclusions Altered biotic interactions can mediate local changes to trait composition and functional diversity during seedling recruitment in forest fragments, hinting at downstream effects on the structure and function of human-modified forests.

scholarly journals Variation in hydroclimate sustains tropical forest biomass and promotes functional diversity

2018 ◽  
Vol 219 (3) ◽  
pp. 932-946 ◽  
Author(s):  
Thomas L. Powell ◽  
Charles D. Koven ◽  
Daniel J. Johnson ◽  
Boris Faybishenko ◽  
Rosie A. Fisher ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Functional Diversity ◽  
Forest Biomass

scholarly journals The sperm-associated microbiota of crickets and their local variation and rapid turnover

2021 ◽  
Author(s):  
Barbara Angela Eckel ◽  
Anastasia Victoria Illner ◽  
Oliver Otti ◽  
Klaus Reinhardt
Keyword(s):  
Functional Diversity ◽  
Potential Role ◽  
Local Variation ◽  
Rapid Turnover ◽  
Male Sperm ◽  
Different Populations ◽  
Sperm Population

While studying aspects of the sperm biology and immunity of two species of crickets, we encountered bacteria that were released from the male sperm container, the spermatophore, alongside sperm. We describe a presumably rich microbe flora in the sperm population ('sperm-associated microbiota'). These sperm-associated microbiota differed between the two species of cricket and between different populations and showed functional diversity. Further, sperm-associated microbiota killed sperm, highlighting their potential role in fitness, especially since they are most likely transferred to females during mating.

scholarly journals Tropical mammal functional diversity increases with productivity but decreases with anthropogenic disturbance

2021 ◽  
Vol 288 (1945) ◽  
pp. 20202098
Author(s):  
Daniel Gorczynski ◽  
Chia Hsieh ◽  
Jadelys Tonos Luciano ◽  
Jorge Ahumada ◽  
Santiago Espinosa ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Observational Data ◽  
Functional Diversity ◽  
Primary Productivity ◽  
Positive Association ◽  
Camera Trap ◽  
Tropical Regions ◽  
Functional Richness ◽  
Functional Dispersion ◽  
Mammal Communities

A variety of factors can affect the biodiversity of tropical mammal communities, but their relative importance and directionality remain uncertain. Previous global investigations of mammal functional diversity have relied on range maps instead of observational data to determine community composition. We test the effects of species pools, habitat heterogeneity, primary productivity and human disturbance on the functional diversity (dispersion and richness) of mammal communities using the largest standardized tropical forest camera trap monitoring system, the Tropical Ecology Assessment and Monitoring (TEAM) Network. We use occupancy values derived from the camera trap data to calculate occupancy-weighted functional diversity and use Bayesian generalized linear regression to determine the effects of multiple predictors. Mammal community functional dispersion increased with primary productivity, while functional richness decreased with human-induced local extinctions and was significantly lower in Madagascar than other tropical regions. The significant positive relationship between functional dispersion and productivity was evident only when functional dispersion was weighted by species' occupancies. Thus, observational data from standardized monitoring can reveal the drivers of mammal communities in ways that are not readily apparent from range map-based studies. The positive association between occupancy-weighted functional dispersion of tropical forest mammal communities and primary productivity suggests that unique functional traits may be more beneficial in more productive ecosystems and may allow species to persist at higher abundances.

Nucleation increases understory species and functional diversity in early tropical forest restoration

2020 ◽  
Vol 158 ◽  
pp. 106031
Author(s):  
Sandra Rojas-Botero ◽  
Jairo Solorza-Bejarano ◽  
Johannes Kollmann ◽  
Leonardo H. Teixeira
Keyword(s):  
Tropical Forest ◽  
Functional Diversity ◽  
Forest Restoration ◽  
Understory Species ◽  
Tropical Forest Restoration

Landscape effects on taxonomic and functional diversity of dung beetle assemblages in a highly fragmented tropical forest

2021 ◽  
Vol 496 ◽  
pp. 119390
Author(s):  
Jose D. Rivera ◽  
Pedro Giovâni da Silva ◽  
Mario E. Favila
Keyword(s):  
Tropical Forest ◽  
Functional Diversity ◽  
Dung Beetle ◽  
Landscape Effects ◽  
Beetle Assemblages

scholarly journals Tree aboveground carbon storage correlates with environmental gradients and functional diversity in a tropical forest

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Yong Shen ◽  
Shixiao Yu ◽  
Juyu Lian ◽  
Hao Shen ◽  
Honglin Cao ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Carbon Storage ◽  
Functional Diversity ◽  
Environmental Gradients ◽  
Aboveground Carbon ◽  
Aboveground Carbon Storage

scholarly journals Large‐sized rare tree species contribute disproportionately to functional diversity in resource acquisition in African tropical forest

2019 ◽  
Vol 9 (8) ◽  
pp. 4349-4361 ◽  
Author(s):  
Elizabeth Kearsley ◽  
Koen Hufkens ◽  
Hans Verbeeck ◽  
Marijn Bauters ◽  
Hans Beeckman ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Functional Diversity ◽  
Tree Species ◽  
Resource Acquisition
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