Coletar morcegos por seis ou doze horas a cada noite?

Pesquisadores brasileiros de morcegos concentram a atividade de coleta com redes de neblina na primeira metade da noite, onde é descrito que ocorre a maior parte da atividade das espécies a serem coletadas. Para avaliar os resultados quanto ao total capturado e a riqueza de espécies em parte da noite, analisamos o horário de captura em inventário realizado no sudeste do Brasil. A amostragem total compreendeu 570 capturas e 25 espécies de três diferentes famílias. Das 18 espécies em que foi possível calcular a média do horário de capturas, apenas duas espécies insetívoras aéreas apresentaram valores anteriores às 21:00 h. Notou-se grande similaridade quanto a abundância das espécies, tanto na primeira metade da noite quanto na segunda metade. A riqueza e o total capturado resultaram em elevada similaridade entre a amostragem observada do pôr-do-sol às 00:00 e das 00:01 h ao amanhecer. A realização de coletas durante toda a noite pode resultar em maior riqueza e deve ser o método escolhido para um inventário.<br>Brazilian researchers of bats concentrate the sampling activity with mist nets in the first half of the night, when it is described that concentrates most of the activity of the species. To evaluate the results of the total captured and species richness during the night, we analyzed the time of capture in inventories developed in southeastern Brazil. The total sampling comprised 570 captures and 25 species of three different families. Of the 18 species in that was possible to calculate the average of time of capture, only two insectivore species showed values previous to 21:00 h. We noticed high similarity in the abundance of the species between the first and the second half of the night. The all night sampling can result in larger richness and should be the chosen methods for inventory

CMS physics technical design report: Addendum on high density QCD with heavy ions

This report presents the capabilities of the CMS experiment to explore the rich heavy-ion physics programme offered by the CERN Large Hadron Collider (LHC). The collisions of lead nuclei at energies ,will probe quark and gluon matter at unprecedented values of energy density. The prime goal of this research is to study the fundamental theory of the strong interaction - Quantum Chromodynamics (QCD) - in extreme conditions of temperature, density and parton momentum fraction (low-x). This report covers in detail the potential of CMS to carry out a series of representative Pb-Pb measurements. These include "bulk" observables, (charged hadron multiplicity, low pT inclusive hadron identified spectra and elliptic flow) which provide information on the collective properties of the system, as well as perturbative probes such as quarkonia, heavy-quarks, jets and high pT hadrons which yield "tomographic" information of the hottest and densest phases of the reaction.0info:eu-repo/semantics/publishe