Results 31 to 40 of about 107,823 (286)

Effect of forest structure changes on permutation and diversity of corticolous lichens (case study: Kheiroud forest, Nowshahr) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2013
Although quite a few studies have been done in respect to forest structure and development in Iran, there is no study dealing with the evolution of lichens at different stages of forest development.
Majid Eshagh Nimvari, Asadollah Mattaji
doaj   +1 more source

Reduced tillage, but not organic matter input, increased nematode diversity and food web stability in European long‐term field experiments [PDF]

open access: yes, 2019
Soil nematode communities and food web indices can inform about the complexity, nutrient flows and decomposition pathways of soil food webs, reflecting soil quality.
De Caceres M.   +22 more
core   +1 more source

Investigation on litter invertebrates diversity at natural forests and reforestations of hardwood and softwood in Mazandaran(Case study: Darabkola) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2012
The most important role of the litter invertebrates is leaf litter decomposition and helping of nutrient elements cycling. The objective of this study was to evaluate litter invertebrates dversity within 20 years old plantations of alder (Alnus ...
Shirzad Mohammadnezhad Kiasari   +3 more
doaj   +1 more source

IDENTIFICATION OF THE MOLUCCAN MEGAPODE (Eulipoa wallacei) NATURAL HABITAT IN HARUKU ISLAND, INDONESIA AND ITS VEGETATION COMPOSITION

open access: yesBiotropia: The Southeast Asian Journal of Tropical Biology, 2023
The characteristics of island vegetation greatly influence the activities of endemic birds in island areas, such as the Moluccan endemic megapodes (Eulipoa wallacei) on Haruku Island.
Handy Erwin Pier Leimena   +2 more
doaj   +1 more source

Effects of temporal variability of disturbance on the succession in marine fouling communities in northern-central Chile [PDF]

open access: yes, 2007
We investigated the effects of temporal variability in a disturbance regime on fouling communities at two study sites in a northern-central Chilean bay. Fouling assemblages grown on artificial settlement substrata were disturbed by mechanical removal of ...
Cifuentes, M.   +4 more
core   +1 more source

Niche partitioning and the storage effect facilitate coexistence in an amphibian community

open access: yesEcology and Evolution, 2023
Virtually all natural community assemblages are dominated by a handful of common species. Dominant species can exert negative impacts on biodiversity through competitive exclusion, and thus there is a strong incentive to understand imbalances in ...
George C. Brooks   +3 more
doaj   +1 more source

Species Diversity Induces Idiosyncratic Effects on Litter Decomposition in a Degraded Meadow Steppe

open access: yesFrontiers in Environmental Science, 2021
Litter decomposition is a fundamental path for nutrient cycling in a natural ecosystem. However, it remains unclear how species diversity, including richness and evenness, affects the decomposition dynamics in the context of grassland degradation.
Iqra Naeem   +8 more
doaj   +1 more source

Nonnegative Matrix Factorization With Data-Guided Constraints For Hyperspectral Unmixing

open access: yesRemote Sensing, 2017
Hyperspectral unmixing aims to estimate a set of endmembers and corresponding abundances in pixels. Nonnegative matrix factorization (NMF) and its extensions with various constraints have been widely applied to hyperspectral unmixing.
Risheng Huang, Xiaorun Li, Liaoying Zhao
doaj   +1 more source

Mapping breeding birds in a re-naturalized historical fortress: composition, structure and considerations about abundance vs. biomass comparisons

open access: yesRivista Italiana di Ornitologia - Research in Ornithology, 2023
Using the mapping method, I obtained data about a rich, even and diversified breeding bird assemblage inhabiting an abandoned and re-naturalized historical military fortress (Rome, central Italy).
Corrado Battisti
doaj   +1 more source

Changes in Richness and Species Composition after Five Years of Grazing Exclusion in an Endemic Pasture of Northern Mexico

open access: yesLand, 2022
A well-managed grazing system improves the productivity and health, and it is important to promote sustainability. We analyzed the impact of grazing on the Sierra de Zapalinamé protected area in north Mexico.
José Ramón Arévalo   +4 more
doaj   +1 more source

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