Results 51 to 60 of about 14,754 (224)

A new combination and typification of Pouzolzia peteri Friis (Urticaceae)

Nordic Journal of Botany, Volume 2026, Issue 5, May 2026.
Pouzolzia peteri, a lesser‐known species from the African continent, is currently classified as a member of the genus Pouzolzia. However, based on the morphological characteristics of its male flowers and leaf venation, its transfer to the genus Gonostegia is proposed.
Amit Gupta, Vijay V. Wagh
wiley   +1 more source

Preliminary study of the airborne pollen in the atmosphere of Puerto Ayora (Galapagos Islands, Ecuador) [PDF]

, 2017
Galapagos is an archipelago of volcanic islands located 972 km west from the continental Ecuador. They were declared by the UNESCO as a World Heritage Site and Biosphere Reserve due to their singular environmental value, where a third part of the ...
Jaramillo Díaz, Patricia, Picornell Rodríguez, Antonio, Recio-Criado, Maria Marta, Trigo-Perez, Maria del Mar   +3 more
core  

Atmospheric dispersion of airborne pollen evidenced by near-surface and columnar measurements in Barcelona, Spain [PDF]

, 2016
Hourly measurements of pollen near-surface concentration and lidar-derived profiles of particle backscatter coefficients and of volume and particle depolarization ratios during a 5-day pollination event observed in Barcelona, Spain, between 27 – 31 March,
Alarcón Jordán, Marta, Baldasano Recio, José María, Belmonte Soler, Jordina, Comerón Tejero, Adolfo, Izquierdo Miguel, Rebeca, Jorba i Casellas, Oriol, Linares, Concha De, Sicard, Michaël   +7 more
core   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): I. The Role of Tree Structure

Biotropica, Volume 58, Issue 3, May 2026.
A portion of rainfall that contacts tree canopies is drained down tree stems as stemflow. Stemflow is an underexamined component of rainfall partitioning in tropical forests. To investigate how tree canopy structural attributes influence stemflow in the Brazilian Amazon, we measured stemflow, rainfall, and dendrometric parameters of 56 trees in the ...
Jeferson Alberto de Lima, John Toland Van Stan II, Karolina Lewińska, Agnieszka Dradrach, Jakub Ceglarek, Kelly Cristina Tonello   +5 more
wiley   +1 more source

Dinâmica populacional de espécimes da família Urticaceae após a colheita na Flona do Tapajós. [PDF]

, 2015
Nesse estudo buscou-se mostrar a dinâmica de espécies arbóreas da Família Urticaceae do gênero Pouroma e Cecropia em uma cronossequência de nove avaliações em 33 anos pós-colheita florestal, realizada no sítio experimental km-67 da FLONA do Tapajós. Como
BATISTA, A. C. G., PEREIRA, P. C. G., RUSCHEL, A. R.   +2 more
core  

Variación anual del polen en la atmósfera de Ponferrada: Años 1995-96 [PDF]

, 1999
Variación anual del polen en la atmósfera de Ponferrrada. Años 1995-96. El objeto de este estudio es conocer la concentración de polen y la periodicidad anual del mismo, en la atmósfera de la ciudad de Ponferrada (León).
Estrada, Juan M., Fernández González, Delia, Valencia Barrera, Rosa M., Vega Maray, Ana   +3 more
core   +4 more sources

Year‐round pollinator visitation of ornamental plants in Mediterranean urban parks

Insect Conservation and Diversity, Volume 19, Issue 3, Page 702-715, May 2026.
Pollinators visiting ornamental plants in urban parks remained diverse throughout the year. They were represented by wild bees (42%), honeybees (37%), flies (18%), butterflies (2%) and beetles (1%). Both native and non‐native plants attracted pollinators.
Alejandro Trillo, David Ragel‐Celdrán, Francisco P. Molina, Montserrat Vilà   +3 more
wiley   +1 more source

Climate and land-use change during the late Holocene at Lake Ledro (southern Alps, Italy) [PDF]

, 2014
International audienceThis paper investigates the relative influences of climatic and anthropogenic factors in explaining environmental and societal changes in the southern Alps, Italy. We investigate a deep sediment core (LL081) from Lake Ledro (652 m a.
Battaglia R, Beug HJ, Beug HJ, Carancini GL, Cortesi C, De Marinis RC, De Marinis RC, De Marinis RC, Fasani L, Festi D, Filippi ML, Filippi ML, Gottardini E, Heiss AG, Hughes PD, Marzatico F, Marzatico F, Mercuri AM, Mercuri AM, Moore PD, Nequirito M, Pinton V   +21 more
core   +2 more sources

From living to fossil: ancestral state reconstruction of leaf architecture in extant Lauraceae and its relevance for the fossil record

Palaeontology, Volume 69, Issue 3, May/June 2026.
Abstract Lauraceae are a tropical–subtropical angiosperm family that exhibit significant diversity and a rich fossil record, primarily of leaves found worldwide from the Cretaceous to the present. However, the taxonomic placement of many fossil leaves remains uncertain because of morphological convergence and limited variation in leaf characters among ...
Marco A. Rubalcava‐Knoth, Angélica Quintanar‐Castillo, Ana L. Hernández‐Damián, Sergio R. S. Cevallos‐Ferriz   +3 more
wiley   +1 more source

Jumping plant-lice of the Paurocephalinae (Insecta, Hemiptera, Psylloidea): systematics and phylogeny [PDF]

, 2003
Much confusion exists with respect to the content and definition of the psyUid subfamily Paurocephalinae. Based on a cladistic analysis of 22 morphological characters (16 adult and 6 larval), the subfamily is redefined to comprise the following five ...
Burckhardt, Daniel, Mifsud, David
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