Canopy opening increases leaf‐shredding arthropods and nutrient mineralization but not mass loss in wet tropical forest
نویسندگان
چکیده
Abstract Hurricanes alter forest habitat by opening the canopy and depositing fresh wood leaves. The objectives of this study were to evaluate effects hurricane drought‐driven changes forests on green litter decomposition, invertebrate communities, nutrient mineralization over a short period (6 months) after disturbance. We used three complete replicated blocks with two treatments: control trim + detritus. Green leaves enclosed in litterbags different mesh sizes determine effect soil fauna varying body sizes. Litterbags retrieved from field 21, 35, 84, 168 days transported laboratory individually sealed plastic bags. extracted identified invertebrates, measured leached mineralized nutrients using ion resin membranes placed for 1 week under inside litterbags, determined mass loss. Additional lowest layer above mineral soil. number arthropod taxonomic groups differed significantly between Regardless size, bags plots had consistently higher richness than detritus plots. Nitrogen phosphorous large decomposer abundance was highest large‐sized These data suggest that within functional categories, variations feeding behavior among orders may affect release organic matter. Percent loss did not differ treatments or litterbag sizes, but instead decreased during drought. Invertebrate composition, abundance, greater dominance shredders (Lepidoptera Diptera larvae) detritus, which corresponded rates results regional drought dominated mesoclimate surpassing any microclimate variation response treatments. Since our differences short‐term fluxes are mostly related food web rather decomposition.
منابع مشابه
Forest Structure, Canopy Architecture, and Light Transmittance in Tropical Wet Forests
Identifying factors that influence variation in light availability within forested ecosystems represents an important component in our understanding of the complex determinants of tree seedling regeneration. We assessed the influence of forest structure and canopy tree architecture on spatial heterogeneity of understory light availability in three old-growth and three second-growth forests in l...
متن کاملEffects of different canopy tree species on belowground biogeochemistry in a wet lowland tropical forest
متن کامل
Interactions of Climate, Carbon, and Nutrient Cycling in Wet Tropical Forest
Tropical forests play a substantial role in the global carbon (C) cycle and are projected to experience significant environmental change, highlighting the importance of understanding the factors that control C and N cycling in this biome. Yet interactions between biogeochemical and abiotic variables, notably species diversity and precipitation, remain poorly resolved in the tropics. In a wet lo...
متن کاملBats limit arthropods and herbivory in a tropical forest.
Previous exclosure studies measuring the top-down control of arthropod abundance and herbivory combined the effects of birds and bats. We experimentally partitioned bird predation from bat predation in a lowland tropical forest in Panama and measured the direct effects (arthropod abundance) and indirect effects (herbivory). The exclusion of birds and bats each directly increased arthropod abund...
متن کاملVariation in foliar respiration and wood CO2 efflux rates among species and canopy layers in a wet tropical forest.
As tropical forests respond to environmental change, autotrophic respiration may consume a greater proportion of carbon fixed in photosynthesis at the expense of growth, potentially turning the forests into a carbon source. Predicting such a response requires that we measure and place autotrophic respiration in a complete carbon budget, but extrapolating measurements of autotrophic respiration ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ecosphere
سال: 2022
ISSN: ['2150-8925']
DOI: https://doi.org/10.1002/ecs2.4084