Results 31 to 40 of about 528 (161)

A Comparison of Mobile Laser Scanning Data Acquisition Methods in Closed Forest, Open Woodland and Sub‐Alpine Woodland Ecosystems

Remote Sensing in Ecology and Conservation, EarlyView.
This study demonstrates that the mobile laser scanning (MLS) sampling density required to reliably characterise vegetation structure increases with a site's structural complexity. Applying a five‐level acquisition framework across open woodland, closed forest and sub‐alpine woodland ecosystems, we found that longer scanning paths increased the ...
Johann Tiede, Karin Reinke, Trung H. Nguyen, Simon Jones   +3 more
wiley   +1 more source

Effect of Acacia melanoxylon R. Br. Inclusion on the Chemical Composition, Fermentation Dynamics, and In Vitro Digestibility of Medicago sativa L. Silage

Grasses
This study evaluated the effect of Acacia melanoxylon inclusion in Medicago sativa silage on chemical composition, fermentation quality, in vitro digestibility, gas production, and energy value. Due to its high moisture content, M.
Cristiana Maduro Dias, Vanessa Melo, Helder Nunes, Alfredo Borba   +3 more
doaj   +1 more source

Melanism in salamanders: effects of insularity, sex and size on dorsal colouration in Salamandra salamandra

Journal of Zoology, EarlyView.
In this study we tested the effects of insularity on amphibian colouration using the fire salamander as a model system. Although increased melanism was not a consistent pattern across all islands, salamanders from one island exhibited higher proportions of black pigmentation than mainland populations, while insular populations overall showed reduced ...
L. Alarcón‐Ríos, M. Saabi González, G. Velo‐Antón   +2 more
wiley   +1 more source

Seasonal Variation of Butterfly Diversity in Subtropical Urban Forests of Nepal

Ecology and Evolution, Volume 16, Issue 7, July 2026.
Butterflies show seasonal fluctuations in diversity and population in response to bioclimatic factors. Studying butterflies in three urban forests in the subtropical region of Nepal, we found that the diversity and community composition differed significantly across seasons, with richness and diversity peaking during the monsoon and abundance peaking ...
Mahamad Sayab Miya, Apeksha Chhetri, Bandana Subedi, Pratiksha Sharma, Sanjaya Raj Tamang, Shristee Panthee, Hasina Miya   +6 more
wiley   +1 more source

Banco de semillas del suelo en un pastizal de una reserva natural del Sistema de Tandilia (Buenos Aires, Argentina) invadido por Racosperma melanoxylon

Ecología Austral, 2021
La restauración de los pastizales naturales invadidos por especies vegetales exóticas depende de la composición del banco de semillas del suelo. Se analizó la composición del banco de semillas germinable del suelo en dos ambientes de la Reserva Natural ...
Osvaldo R. Vignolio, María E. Garavano, Patricia Diez de Ulzurrun, Hernán P. Angelini, Verónica N. Ispizúa   +4 more
doaj   +1 more source

Are the ecological and human dimensions of a national park reconcilable? Addressing visitors' preferences for conservation programs

Conservation Science and Practice, Volume 8, Issue 7, July 2026.
The human dimension must be considered in conservation actions. This article presents a discrete choice experiment that analyses the preferences of visitors for the conservation programs being developed in a National Park. The experiment allows identifying certain conflicts between the ecological and social dimensions, and the conclusion is that there ...
Mario Soliño, Vicente Piorno
wiley   +1 more source

Valorization of Underused Biomass of Acacia dealbata and Acacia melanoxylon Through Vermicomposting as an Alternative Substrate for Cucumber Production

Recycling
Invasive alien species are one of the main threats to global biodiversity, and pose significant management challenges in several areas outside their natural range.
Maria C. Morais, Elisabete Nascimento-Gonçalves, Tiago Azevedo, Henda Lopes, Helena Ferreira, Ana M. Coimbra, Berta Gonçalves, João R. Sousa, Marta Roboredo, Paula A. Oliveira   +9 more
doaj   +1 more source

Variation of some wood macroscopic properties along the stem of Acacia melanoxylon R. Br. adult trees in Portugal

Forest Systems, 2013
Aim of the study: The aim of the study is to assess the variation of pith eccentricity, heartwood proportion, latewood percentage and basic wood density along the stem of 45-year-old A.
A. Santos, R. Simões, M. Tavares
doaj   +1 more source

TWO METHODS FOR TREE VOLUME ESTIMATION OF Acacia melanoxylon IN PORTUGAL

FLORESTA, 2011
AbstractTwo models were developed to evaluate total volume under and over-bark of Blackwood (Acacia melanoxylon R. Br.) stand trees. By variance analysis regarding volume with and without bark it was confirmed that trees age is responsible for 48 to 50% of its volumetric behaviour.
Rucha, Andreia, Santos, António J., Campos, José, Anjos, O., Tavares, Mário   +4 more
openaire   +3 more sources

Wood and bark fiber characteristics of Acacia melanoxylon and comparison to Eucalyptus globules [PDF]

CERNE, 2011
Wood and bark fibers of Acacia melanoxylon were characterized and compared to Eucalyptus globulus which is a major quality source of pulp fibers. In 20 trees from four sites, fiber length and wall thickness were measured at 5, 35 and 65% of total tree height and at 10, 30, 50, 70 and 90% of the distance from pith.
Tavares, Fatima, Quilhó, Teresa, Pereira, Helena   +2 more
openaire   +3 more sources