Large-brained mammals live longer

González-Lagos C., Sol D., Reader S.M. (2010) Large-brained mammals live longer. Journal of Evolutionary Biology. 23: 1064-1074.
Enllaç
Doi: 10.1111/j.1420-9101.2010.01976.x

Resum:

Many mammals have brains substantially larger than expected for their body size, but the reasons for this remain ambiguous. Enlarged brains are metabolically expensive and require elongated developmental periods, and so natural selection should have favoured their evolution only if they provide counterbalancing advantages. One possible advantage is facilitating the construction of behavioural responses to unusual, novel or complex socio-ecological challenges. This buffer effect should increase survival rates and favour a longer reproductive life, thereby compensating for the costs of delayed reproduction. Here, using a global database of 493 species, we provide evidence showing that mammals with enlarged brains (relative to their body size) live longer and have a longer reproductive lifespan. Our analysis supports and extends previous findings, accounting for the possible confounding effects of other life history traits, ecological and dietary factors, and phylogenetic autocorrelation. Thus, these findings provide support for the hypothesis that mammals counterbalance the costs of affording large brains with a longer reproductive life. © 2010 The Authors. Journal Compilation © 2010 European Society For Evolutionary Biology.

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Spatial genetic structure of Taxus baccata L. in the western Mediterranean Basin: Past and present limits to gene movement over a broad geographic scale

González-Martínez S.C., Dubreuil M., Riba M., Vendramin G.G., Sebastiani F., Mayol M. (2010) Spatial genetic structure of Taxus baccata L. in the western Mediterranean Basin: Past and present limits to gene movement over a broad geographic scale. Molecular Phylogenetics and Evolution. 55: 805-815.
Enllaç
Doi: 10.1016/j.ympev.2010.03.001

Resum:

English yew (Taxus baccata L., Taxaceae), a Tertiary relict, provides a seminal example of a widespread albeit locally endangered (often close to extinction) tree species. In order to gain detailed insights into the evolutionary dynamics of the species on a broad geographical scale, over 1000 trees from 91 populations of English yew in the western Mediterranean were analyzed using seven nuclear microsatellite markers. Our results revealed contrasting patterns of genetic structure at different spatial scales: genetic variation was highly structured at the local scale, while only a low proportion of the observed variation was attributed to regional differences. We also found a geographic gradient of decreasing diversity and increasing population divergence from northwest (central Europe and northern Iberian Peninsula) to southeast (Mediterranean Iberia and North Africa). The patterns revealed in this study probably reflect the combined effects of Quaternary climatic changes and recent impact of human activities, and potentially also more ancient events dating back to the Tertiary. Both climatic and anthropogenic factors seem to have conducted to a long history of population isolation, which may have contributed significantly to enhance population divergence through restricted gene flow and genetic drift. © 2010 Elsevier Inc. All rights reserved.

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Combined effects of Impatiens glandulifera invasion and landscape structure on native plant pollination.

Bartomeus I, Vila M, Steffan-Dewenter I (2010) Combined effects of Impatiens glandulifera invasion and landscape structure on native plant pollination. Journal of Ecology 98: 440–450.

Risk análisis of potencial invasive plants in Spain.

Andreu J, Vilà M (2010) Risk análisis of potencial invasive plants in Spain. Journal for Nature Conservation 18: 34-44.

The ALARM Field Site Network, an Outstanding Tool for the Survey of Invasive Insects Infesting Seeds of Wild Roses in Europe. In: Settele, J. et al. (eds.): Atlas of Biodiversity Risks - from Europe to the globe, from stories to maps.

Auger-Rozenberg MA, Budrys E, Petanidou T, Glavendekic M, Bommarco R, Bonzini S, Kröel-Dulay G, Andreu J, Moora M, Potts SG, Rortais A, Stout A, Torres I, Westphal C, Woyciechowski M, Desbois S, Lorme P, Raimbault JP, Pineau P, Roques A (2010) The ALARM Field Site Network, an Outstanding Tool for the Survey of Invasive Insects Infesting Seeds of Wild Roses in Europe. In: Settele, J. et al. (eds.): Atlas of Biodiversity Risks - from Europe to the globe, from stories to maps. Pensoft, Sofia & Moscow (www.pensoftonline.net/alarm-atlas-info).

Cavity-Nesting Hymenoptera across Europe: a Study in ALARM Project Field Site Network Sites Using Small Trap-Nests on Trees and Buildings. In: Settele, J. et al. (eds.): Atlas of Biodiversity Risks - from Europe to the globe, from stories to maps.

Budrys E, Andreu J, Briliûté A, Cetkoviã A, Heinrich S, Kroel-Dulay G, Moora M, Potts SG, Rortais A, Sjodin E, Szentgyorgyi H, Torres I, Vighi M, Westphal C, Budrienë A. (2010) Cavity-Nesting Hymenoptera across Europe: a Study in ALARM Project Field Site Network Sites Using Small Trap-Nests on Trees and Buildings. In: Settele, J. et al. (eds.): Atlas of Biodiversity Risks - from Europe to the globe, from stories to maps. Pensoft, Sofia & Moscow (www.pensoftonline.net/alarm-atlas-info).

Vegetation Response after Removal of the Invasive Carpobrotus Hybrid Complex in Andalucía, Spain.

Andreu J, Manzano E, Bartomeus I, Dana ED, Vilà M (2010) Vegetation Response after Removal of the Invasive Carpobrotus Hybrid Complex in Andalucía, Spain. Ecological Restoration 28: 440-448.

La biodiversitat no és prescindible.

Terradas J (2010) La biodiversitat no és prescindible. Mètode 67: 35-39.

Ecologia viscuda.

Terradas J (2010) Ecologia viscuda. Publicacions de la Universitat de València, València, 452 pp.

Les extincions són per sempre: per a què serveix la biodiversitat?.

Terradas J (2010) Les extincions són per sempre: per a què serveix la biodiversitat?. Educació i sostenibilitat 8: 34-37.

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