Results 141 to 150 of about 1,130,066 (228)

A history of mole crickets (Orthoptera: Gryllotalpidae) in Puerto Rico [PDF]

open access: yes, 2009
Published claims in 1887-1903 that the mole cricket Neocurtilla hexadactyla (Perty) occurs in Puerto Rico all seem to be derived from a misidentification made by Agustín Stahl, a medical practitioner and collector of natural history objects, published in
Frank, J. Howard
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Historia natural de Asclepias subulata; de las colecciones a la ciencia ciudadana

open access: yesBotan‪ical Sciences
Antecedentes: Asclepias subulata se ha estudiado en diferentes aspectos de su sistemática, filogenia, distribución e interacciones. Sin embargo, en algunos rubros el conocimiento es escaso y aislado, además, no hay trabajos que integren y aporten nueva ...
Leonardo O. Alvarado-Cárdenas   +3 more
doaj   +1 more source

Da Vinci's mischief: xylem conduits in the stems of woody plants do not furcate

open access: yesNew Phytologist, Volume 250, Issue 5, Page 3001-3013, June 2026.
Summary The hydraulic architecture of plants is often modeled as a ‘furcating’ network, in which xylem conduits proliferate in number toward the stem apex, analogous to animal circulatory systems. Yet whether furcation actually occurs within woody stems remains untested, despite major implications for carbon costs and hydraulic efficiency.
Gilberto Alemán‐Sancheschúlz   +4 more
wiley   +1 more source

Urban–Wild Interface Diversity: A Comprehensive Checklist of Herpetofauna of Guayaquil, Ecuador

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Amphibians and reptiles in Guayaquil comprise multiple taxonomic orders and occur across conservation areas, forest remnants, and urban parks, including several endemic species and numerous taxa with type localities in the city. Although most species are globally classified as Least Concern, discrepancies between global and national threat assessments ...
Keyko Cruz‐García   +3 more
wiley   +1 more source

Nomenclatural notes on Chalepini and Sceloenopliini (Coleoptera: Chrysomelidae: Cassidinae) [PDF]

open access: yes, 2010
The authorship and type species of the genera Acentroptera and Metazycera are reviewed. The correct author of Acentroptera is Guérin-Méneville, 1844; Acentroptera dejeani Guérin-Méneville, 1844, is here designated as the type species.
Staines, Charles L.
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Hechtia mixtecana sp. nov. (Hechtioideae; Bromeliaceae), from Oaxaca, Mexico

open access: yesNordic Journal of Botany, Volume 2026, Issue 5, May 2026.
Botanical explorations carried out in the state of Oaxaca, Mexico, led to the discovery of a new Bromeliaceae: Hechtia mixtecana,which is here described and illustrated. The new taxon is compared with the morphologically similar Hechtia fragilis, Hechtia lyman‐smithii, and Hechtia minuta.
Rodrigo Alejandro Hernández‐ Cárdenas   +4 more
wiley   +1 more source

Dimensões do direito do turismo: enquadramento na lei das politícas públicas de turismo [PDF]

open access: yes, 2011
O autor estuda a Lei das Políticas Públicas de Turismo (D.L. nº 191/2009,de 17 de Agosto de 2009), através de uma metodologia sistemática e dedutiva que se debruça sobre o Direito do Turismo numa perspectiva sistemática, estrutural e funcionalista ...
Machado, Virgílio
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Descripción de una especie nueva de alacrán con importancia médica del género Centruroides (Scorpiones: Buthidae) del estado de Colima, México Description of a new species of scorpion of medical importance of the genus Centruroides (Scorpiones: Buthidae) from the state of Colima, Mexico

open access: yesRevista Mexicana de Biodiversidad, 2009
Se describe Centruroides hirsutipalpus sp. nov. de la región de Minatitlán, Colima. Se compara con las especies morfológica y geográficamente más cercanas, C. elegans Thorell y C.
Javier Ponce-Saavedra, Oscar F. Francke
doaj  

Ancient people and living nature: A global perspective on archaeological areas and biodiversity

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1085-1099, May 2026.
Abstract Archaeological sites are not only of cultural and historical significance but also contribute to biodiversity conservation. Often marked by limited human disturbance and distinct ecological conditions, these areas serve as important refuges for various plant and animal species, playing a vital role in global conservation efforts.
Antonio Romano   +3 more
wiley   +1 more source

The Bay Scallop, Argopecten irradians amplicostatus, in Northeastern Mexico [PDF]

open access: yes, 2009
The bay scallop, Argopecten irradians amplicostatus, has been present in the coastal lagoons of northeastern Mexico from Laguna Madre, Tamaulipas, to Tuxpan, Veracruz.
Wakida-Kusunoki, Armando T.
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