Results 51 to 60 of about 42,594 (264)
A recent global trend toward retirement of farmland presents opportunities to reclaim habitat for threatened and endangered species. We examine habitat restoration opportunities in one of the world's most converted landscapes, California's San Joaquin ...
Joseph A E Stewart +6 more
doaj +1 more source
Modelación de la distribución del oso andino Tremarctos ornatusen el bosque seco del Marañón (Perú)
El oso andino (Tremarctos ornatus) es una especie en situación vulnerable, cuyo hábitat se va fragmentando poco a poco por la expansión de las actividades humanas.
Judith Figueroa +2 more
doaj +1 more source
La Evaluación de proyectos con impacto ambiental. Eficiencia y sostenibilidad [PDF]
Suele darse por sentado que la valoración de los impactos que recaen sobre las generaciones presentes no comporta dificultad alguna. Sin embargo esto no es cierto.
Padilla, Emilio +2 more
core
Abrigos, simas y graneros. Sobre el uso de las cuevas en la Edad del Bronce en la comarca de L'Alcoià [PDF]
S'hi analitzen els materials i la distribució a la comarca de l'Alcoia de les coves amb materials de l'edat del bronze. També s'interpreta el seu funcionament en el context de la intensificació de l'economia agraria en aquest moment. Puraules claus: Edat
Fairén Jiménez, Sara
core
Le séisme du 15 août 2007 dans la Margen Izquierda del Río Rímac (Lima) [PDF]
International audienceOn August 15, 2007, the Pisco earthquake strongly damaged the department of Ica in the South of Lima. Damages have been also observed in the capital, essentially in the poorest neighbourhoods.
D'Ercole, Robert, Robert, Jérémy
core +2 more sources
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley +1 more source
Ecological factors determining the density-distribution of Central European dragonflies (Odonata)
Habitat specificity is the most important factor affecting the regional distribution of dragonflies. Nevertheless, species with the highest specificity are not always the scarcest.
Filip HARABIŠ, Aleš DOLNÝ
doaj +1 more source
Variation in parrot jaw musculature
Interspecific morphological differences in some superficial jaw muscles of parrots. Abstract Psittaciformes, the order encompassing parrots and their relatives, are highly diverse and generally known for having a strong beaks used for multiple behaviors. The muscles related to the masticatory apparatus should reflect this functional complexity; however,
Ana Carolina L. Faillace +3 more
wiley +1 more source
Spatial variation of five co-existing siluriformes in an atlantic rain forest drainage
Five species of Siluriformes were registered in the Ubatiba system. Pimelodella lateristriga was the dominant one, followed by Hypostomus gr. punctatus, Rineloricaria sp., Callichthys callichthys and Rhamdia sp.
Rosana Mazzoni +2 more
doaj +1 more source
Alteration of sexual reproduction and genetic diversity in the kelp species Laminaria digitata at the southern limit of its range. [PDF]
Adaptation to marginal habitats at species range-limits has often been associated with parthenogenetic reproduction in terrestrial animals and plants. Laboratory observations have shown that brown algae exhibit a high propensity for parthenogenesis by ...
Luz Valeria Oppliger +7 more
doaj +1 more source

