Results 71 to 80 of about 146,675 (224)

Iberismo unamuniano

open access: yesRevista de História, 1962
O iberismo é um problema; como doutrina e como aspiração . Um problema com suas coordenadas cartesianas, seus polos de afirmação e de negação, suas "direitas" e suas "esquerdas"; mas um problema sem solução, como todos os que se equacionam baseados em ...
Julio García Morejón
doaj   +1 more source

Palynological study of genus Potamogeton in the Iberian Península [PDF]

open access: yes
GARCíA MURILlo, P. 1993. Estudio palinotógico del género fiotarnogeton Len la Península ibérica Bat Complutensis 18: 79-9 1 Se estudian, por medio del microscopio óptico y del microscopio electrónico de barrido, los caracteres polínicos de 86 ...
García Murillo, Pablo
core   +1 more source

Formaciones de "Antirrhinum majus" en los territorios hispalenses [PDF]

open access: yes, 2006
Stands of Antirrhinum majus in the Hispalense sectorPalabras clave. Asociación, sintaxonomia, corología, sur Península Ibérica, Echio boissieri-Antirrhinetum majii.Key words.
Cano Carmona, Eusebio   +3 more
core   +3 more sources

When do citizen scientists record biodiversity? Non‐random temporal patterns of recording effort and associated factors

open access: yesPeople and Nature, Volume 7, Issue 4, Page 860-870, April 2025.
Abstract Citizen science data are increasingly used for ecological research, biodiversity conservation and monitoring. However, these data often present significant analytical challenges due to uneven recording efforts by citizen scientists. Biases caused by intra‐annual differences in levels of recording activity can be particularly severe, hindering ...
Inês T. Rosário   +3 more
wiley   +1 more source

Los Lepidoptera de la Sierra de Altaona y su entorno(Murcia, España)(Insecta: Lepidoptera)

open access: yesSHILAP, 2007
Se estudian los Lepidoptera de la Sierra de Altaona, un paisaje semiárido característico del sureste de la Península Ibérica. Se citan 210 especies pertenecientes a 15 familias.
M. Garre Belmonte
doaj  

Functional intraspecific variation in the base water potential for seed germination along soil microclimatic gradients

open access: yesFunctional Ecology, Volume 39, Issue 3, Page 897-911, March 2025.
Abstract The ability of plants to successfully regenerate depends on complex physiological and ecological processes, and one of the first vital stages is seed germination, which depends on temperature, light and water availability. Within species variation in seed germination allows differential responses when facing stimuli and is key for adaptation ...
Clara Espinosa del Alba   +3 more
wiley   +1 more source

A colourful world with a dark future: Unregulated trade as an emerging threat for woodlice (Isopoda: Oniscidea) of Spain

open access: yesInsect Conservation and Diversity, Volume 18, Issue 2, Page 161-176, March 2025.
The unregulated trade of terrestrial isopods is a current and significant new threat that leads to the local extinctions of endemic species. Genetic contamination and the introduction and spread of alien species are other secondary threats that could affect native woodlouse populations.
Jairo Robla   +4 more
wiley   +1 more source

Influência da tectónica sobre o clima [PDF]

open access: yes, 2007
Dissertação mest., Biologia e Geologia, Universidade do Algarve, 2007Os mecanismos de mudança climática incluem fenómenos cíclicos que ocorrem a escalas temporais variadas. Os fenómenos que derivam directa ou indirectamente da Tectónica Global actuam a
Neves, Tiago Gonçalo Grade
core  

Eoxentomon (Insecta, Protura) generoaren bi espezieren Penintsula Iberikarako Lehenengo Aipamenak. [PDF]

open access: yesMunibe Ciencias Naturales, 1986
Se citan por primera vez en la Península Ibérica dos proturos del   género Eosentomon: E. denisi y E. carolae.
ALDABA, J.
doaj  

Sorne consideratjoas about Bromus rigidus Roth ¡a the Iberian Peninsida and Baleares [PDF]

open access: yes
CFnOLLA LOZANO, C. & RIvAS PONCE, MA. 1992. Algunas consideraciones sobre la especie Bí-omus rigidus Roíh en la Península Ibérica y Baleares. Bat, Coarplutensis.
Cebolla Lozano, Consuelo   +1 more
core   +1 more source

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