Results 81 to 90 of about 91,319 (223)

Two new records for the flora of Paraguay: Stemodia diplohyptoides and S. lobelioides (Plantaginaceae:Gratioleae)

open access: yesNordic Journal of Botany, Volume 2026, Issue 3, March 2026.
Stemodia diplohyptoides M.M.Sosa & Dematt. and S. lobelioides Lehm. (Gratioleae, Plantaginaceae) are reported for the first time in Paraguay, found in Alto Paraná and Presidente Hayes departments, respectively. These new records extend the known geographical range of both species, representing the northern records to date, S.
Y. Carlés Bechara   +4 more
wiley   +1 more source

Should I Stay or Should I Go? Using Open Data to Investigate Movements of the Streamer‐Tailed Tyrant (Gubernetes yetapa)

open access: yesAustral Ecology, Volume 51, Issue 3, March 2026.
ABSTRACT Migration is a global phenomenon shaping bird assemblages in response to seasonal climate variations. The Streamer‐tailed Tyrant (Gubernetes yetapa) is a Neotropical bird associated with wetlands. Although considered common across most of its range, its natural history remains poorly understood, and some authors have suggested it may exhibit ...
Thuani Luísa Saldanha Wagener   +2 more
wiley   +1 more source

The Role of Awns Evolution in Shaping the Biogeographical History of Pappophorinae (Poaceae: Chloridoideae)

open access: yesJournal of Biogeography, Volume 53, Issue 3, March 2026.
ABSTRACT Aim We reconstructed the biogeographic history of Pappophorinae and tested whether the evolution of awns is associated with differences in species' geographic ranges. Location Americas. Time Period Miocene. Major Taxa Studies Pappophorinae (Poaceae: Chloridoideae).
Yuri de S. Vieira Couceiro   +6 more
wiley   +1 more source

Along the Silenced Footsteps of Latin American Pastoralists: From Mexico to Argentina, a Journey Through Pastoral Systems in Latin America

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 31, Issue 1, March 2026.
ABSTRACT Pastoralism worldwide faces a complex landscape of increased pressures and exclusion. Beyond ecological and economic challenges, pastoralists suffer eroding cultural identity, limited generational renewal, and political marginalization. Yet pastoral livelihoods are increasingly recognized as stewards of sustainable futures and amongst the best
Greta Semplici, Pablo Manzano
wiley   +1 more source

Surface layering of liquids: The role of surface tension

open access: yes, 2004
Recent measurements show that the free surfaces of liquid metals and alloys are always layered, regardless of composition and surface tension; a result supported by three decades of simulations and theory. Recent theoretical work claims, however, that at
A. Braslau   +39 more
core   +1 more source

Regions of Climatic Stability for Neotropical Primates

open access: yesMammal Review, Volume 56, Issue 1, March 2026.
Spatial distribution of climatic stability, endemism, and model uncertainty for Neotropical primates. The left panel depicts projected climatic stability (warm colours = higher proportion of species with persistent climatic suitability; cool colours = lower stability). The upper‐right panel shows endemism (warm colours = higher concentration of endemic
Thairik Mateus Silva Marques   +6 more
wiley   +1 more source

Digital Anthropology: Projects and Platforms [PDF]

open access: yes, 2011
pdf of website textMark Turin has agreed with the copyright holder the right to host a copy of this piece (whether audio, text or video) on University of Cambridge archives and servers.Article published 28 November, 2011.
Lende, Daniel
core   +1 more source

On the role of system size in Hall MHD magnetic reconnection

open access: yes, 2017
We study the effects of the Hall electric field on magnetic island coalescence in the large island limit and find evidence for both a elongated electron current sheet layer with a Sweet-Parker-like reconnection rate and a collapsed, Petschek-like ...
Bard, C., Dorelli, J. C.
core   +1 more source

Territorios ajenos. El caso de la Cooperativa Agropecuaria de Presidencia Roque Sáenz Peña Limitada, Chaco

open access: yesAvances del Cesor, 2017
El artículo se propone describir y analizar las estrategias (socio-productivas) de la Cooperativa Agropecuaria de Presidencia Roque Sáenz Peña Ltda. (CARSP) a partir de sus acciones y representaciones ante las transformaciones socio-productivas agrarias ...
José Martín Bageneta
doaj   +1 more source

Ichthyological ecoregions of Argentina [PDF]

open access: yes, 2002
The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending
López, Hugo Luis   +2 more
core  

Home - About - Disclaimer - Privacy