Eyes of the hoverfly Eristalis tenax are sexually dimorphic such that males have a fronto-dorsal region of large facets. In contrast to other large flies in which large facets are associated with a decreased interommatidial angle to form a dorsal…
Papers in Entomology
Entomology papers in Biological Sciences, A
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951 using 1,527 ring-width measurements from living trees and relict wood. The reconstruction is composed of larch data from four Alpine valleys in Switzerland and pine data from the western Austrian Alps. These regions are situated in high…
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Europe was officially declared free from malaria in 1975; nevertheless, this disease remains a potential problem related to the presence of former vectors, belonging to the Anopheles maculipennis complex. Autochthonous-introduced malaria cases,…
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Fossil rodent middens and wetland deposits from the central Atacama Desert (22 degrees to 24 degrees S) indicate increasing summer precipitation, grass cover, and groundwater levels from 16.2 to 10.5 calendar kiloyears before present(ky B.P.).…
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Six independent tree-ring reconstructions of summer drought were calibrated against instrumental fire data to develop a 229-year dendroclimatic-inferred record of fire activity annual area burned and fire occurrence) on the Boreal Shield, Canada. As…
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Widespread concerns about global biodiversity loss have led to a growing demand for indices of biodiversity status. Today, climate change is among the most serious threats to global biodiversity. Although many studies have revealed phenological…
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Flying snake species (Chrysopelea) locomote through the air despite a lack of appendages or any obvious external morphological specialization for flight. Here photogrammetric techniques were used to investigate C. paradisi's aerial trajectory in…
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Concerns have been raised that genetically modified Bt maize may harm non-target organisms, and there is a general call and need for a risk assessment of Bt maize. Spiders are important pest predators in agroecosystems and in maize, and can be…
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Background: High-throughput sequencing technologies offer new perspectives for biomedical, agronomical and evolutionary research. Promising progresses now concern the application of these technologies to large-scale studies of genetic variation.…
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In recent years, phylogenetic tree reconstructions that rely on multiple gene alignments that had been deduced from expressed sequence tags (ESTs) have become a popular method in molecular systematics. Here, we present a 454 pyrosequencing approach…
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In Canada, the average annual area of burned forest has increased from around 1 million ha in the 1970's to over 2.5 million ha in the 1990's, A previous study has identified the link between anomalous mid-tropospheric circulation at 500 hPa over…
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Tissue specimens from 283 principally spontaneously (naturally) desiccated human mummies from coastal and low valley sites in northern Chile and southern Peru were tested with a DNA probe directed at a kinetoplast DNA segment of Trypanosoma cruzi.…
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A Amazônia é vista e analisada a partir dos eixos e zoneamentos resultantes das intervenções públicas. Para estudar este processo, partiu-se da identificação das formas espaciais existentes e de modelos gráficos, representativos das configurações…
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Vertically transmitted symbionts of arthropods have been implicated in several reproductive manipulations of their hosts. These include cytoplasmic incompatibility (CI), parthenogenesis induction in haplodiploid species (PI), feminization and male…
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Male killing is caused by diverse microbial taxa in a wide range of arthropods. This phenomenon poses important challenges to understanding the dynamics of sex ratios and host-pathogen interactions. However, the mechanisms of male killing are…
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Concepts of spatial scale, such as extent, grain, resolution, range, footprint, support and cartographic ratio are not interchangeable. Because of the potential confusion among the definitions of these terms, we suggest that authors avoid the term…
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The concept of a Barcode of Life Database (BoLD) for the Class Cephalopoda (Phylum Mollusca) was introduced at the Cephalopod International Advisory Council (CIAC) symposium in Hobart, Australia, February 2006. This suggestion was met with…
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Baseline ecological studies of pristine mangroves are important for monitoring, management and conservationof mangrove ecosystems. Diversity, density, biomass and community structure of crab and molluscan macrofauna werestudied in a near-pristine…
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In this paper, experimental results on the ant Lasius niger, complemented by a model, allow us to understand the mechanisms responsible for aggregation & to study the influence of the population density on this phenomenon. The results show (1) a…
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Evolutionary biologists often wish to explore the impact of a particular historical event (e.g., the origin of a novel morphological trait, an episode of biogeographic dispersal, or the onset of an ecological association) on rates of diversification…
Papers in associated sub-disciplines
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