Results 51 to 60 of about 1,551,825 (199)

Karyotype and male meiosis in Spartocera batatas and meiotic behaviour of multiple sex chromosomes in Coreidae (Heteroptera)

open access: yesEuropean Journal of Entomology, 2006
The Coreidae (Heteroptera) have holokinetic chromosomes and during male meiosis the autosomal bivalents segregate reductionally at anaphase I while the sex chromosomes do so equationally. The modal diploid chromosome number of the family is 2n = 21, with
María José FRANCO   +2 more
doaj   +1 more source

Experimental Induction of Friendship Jealousy: Comparing the Effects of Time versus Mental Coordination with an Interloper

open access: yesPsykhe, 2022
Jealousy is an emotional response to the threat of losing a valued relationship. In this research, we revisit the proposal that jealousy in friendship is an evolved response to the threat of someone else replacing what is unique in this kind of ...
Ana María Fernández   +4 more
doaj   +1 more source

Pelvic morphology and body size in relation to the preauricular sulcus: Evidence from medieval to modern Iberia

open access: yesThe Anatomical Record, EarlyView.
Abstract The preauricular sulcus has long been debated as a pelvic feature variably attributed to obstetric stress, ligamentous traction, and broader biomechanical processes. To clarify its determinants, we analyzed 409 adult individuals from three archeological and one early modern skeletal collection from the Iberian Peninsula, integrating graded ...
Rebeca García‐González   +5 more
wiley   +1 more source

Biogeografía Humana y Tendencia Demográfica en el Monte Nordpatagónico. Una aproximación arqueológica desde El Corcovo (SE de Mendoza)

open access: yesRevista del Museo de Antropologia, 2019
El presente trabajo aporta al conocimiento de la biogeografía humana en ambientes áridos y las fases de poblamiento en relación con las trayectorias demográficas humanas.
Adolfo F. Gil   +10 more
doaj   +1 more source

Expanding the Faunal Interpretation of the Cova Eirós (NW Iberia) Middle Paleolithic–Early Upper Paleolithic Record With ZooMS

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT The Cova Eirós archaeopaleontological site preserves the most comprehensive archaeostratigraphic sequence in the northwestern Iberian Peninsula, with an exceptionally rich record spanning from the Mousterian to the Upper Paleolithic. The extensive fragmentation of the faunal record and the rich taxonomic diversity at this site have limited the
Hugo Bal‐García   +9 more
wiley   +1 more source

Respuesta del perifiton de agua dulce al glifosato grado-técnico y dos formulados comerciales [PDF]

open access: yes, 2019
El glifosato es el herbicida más utilizado a nivel mundial. Puede llegar a los cuerpos de agua y afectar a las comunidades microbianas. Comparamos los efectos del glifosato grado técnico y dos formulados comerciales sobre una comunidad periférica de agua
Gonzalez, Daniela   +4 more
core   +1 more source

Trapped in the web: network architectures spread coevolution and shape adaptation

open access: yesOikos, EarlyView.
Adaptation is critical for biodiversity to persist under global change. Within ecological communities, species often face tradeoffs between adapting to shifting abiotic conditions and navigating the complex selective pressures imposed by interaction networks.
Alexandre Fuster‐ Calvo   +5 more
wiley   +1 more source

El arte rupestre de Corcovo 2 y la producción de motivos cefalomorfos-mascariformes en el sur de Mendoza (Argentina): un abordaje desde el concepto de territorialidad

open access: yesRevista del Museo de Antropologia, 2023
Se presenta una caracterización detallada del arte rupestre del sitio Corcovo 2 (sur de Mendoza, Argentina), un conjunto de bloques grabados que destaca por la elevada frecuencia de motivos cefalomorfos-mascariformes.
Agustín Acevedo   +4 more
doaj   +1 more source

More pumas (Puma concolor) does not change perceptions: The mismatched response of ranchers to the presence of a top carnivore

open access: yesPeople and Nature, EarlyView.
Abstract Human‐wildlife conflicts (HWCs) are one of the most critical conservation challenges worldwide. Large carnivores are frequently at the centre of these conflicts because of the perceived and real threats they pose to livestock and human safety.
Esperanza C. Iranzo   +10 more
wiley   +1 more source

Evolución geológica en la cuenca baja del río Colorado durante el cenozoico, Patagonia Norte, Argentina [PDF]

open access: yes, 2019
Climatic changes and eustatic sea levels have been assumed to be the most important controllers of the Colorado River alluvial fan in northern Patagonia.
Perillo, Gerardo Miguel E.   +2 more
core   +2 more sources

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