نتایج جستجو برای: arthropods

تعداد نتایج: 7453  

Journal: :Ecología Austral 2014

Journal: :Psyche: A Journal of Entomology 1981

Journal: :Journal of visualized experiments : JoVE 2016
James R Hagler Scott A Machtley

Monitoring arthropod movement is often required to better understand associated population dynamics, dispersal patterns, host plant preferences, and other ecological interactions. Arthropods are usually tracked in nature by tagging them with a unique mark and then re-collecting them over time and space to determine their dispersal capabilities. In addition to actual physical tags, such as color...

2015
Lisa D. Brown Rebecca C. Christofferson Kaikhushroo H. Banajee Fabio Del Piero Lane D. Foil Kevin R. Macaluso

Cat fleas (Ctenocephalides felis) are known as the primary vector and reservoir of Rickettsia felis, the causative agent of flea-borne spotted fever; however, field surveys regularly report molecular detection of this infectious agent from other blood-feeding arthropods. The presence of R. felis in additional arthropods may be the result of chance consumption of an infectious bloodmeal, but iso...

2010
Thomas K. Sabu Raj T. Shiju

The present study provides data to decide on the most appropriate method for sampling of ground-dwelling arthropods measured in a moist-deciduous forest in the Western Ghats in South India. The abundance of ground-dwelling arthropods was compared among large numbers of samples obtained using pitfall trapping, Berlese and Winkler extraction methods. Highest abundance and frequency of most of the...

2017
Katerina Sam Bonny Koane Samuel Jeppy Jana Sykorova Vojtech Novotny

Food preferences and exploitation are crucial to many aspects of avian ecology and are of increasing importance as we progress in our understanding of community ecology. We studied birds and their feeding specialization in the Central Range of Papua New Guinea, at eight study sites along a complete (200 to 3700 m a.s.l.) rainforest elevational gradient. The relative species richness and abundan...

Journal: :Current Biology 2016
Marcos Sterkel Hugo D. Perdomo Melina G. Guizzo Ana Beatriz F. Barletta Rodrigo D. Nunes Felipe A. Dias Marcos H.F. Sorgine Pedro L. Oliveira

Blood-feeding arthropods are vectors of infectious diseases such as dengue, Zika, Chagas disease, and malaria [1], and vector control is essential to limiting disease spread. Because these arthropods ingest very large amounts of blood, a protein-rich meal, huge amounts of amino acids are produced during digestion. Previous work on Rhodnius prolixus, a vector of Chagas disease, showed that, amon...

2008
ELENA BOGDANOVA

The processes of urbanization is accompanied by attraction to settlements, the synanthropization, of many systematic groups of animals including arthropods. Synanthropization of some vectors of diseases agents, means augmentation of their contacts to people and increase of epidemiological danger. The annotated ecological-faunistic list of the synanthropic species of arthropods dwelling in East ...

2004
B. D. Lloyd S. M. McQueen

Assays for the toxin sodium monofluoroacetate (compound 1080) were undertaken on arthropods collected from toxic baits after a brushtail possum (Trichosorus vulpecula) control operation in Nothofagus forest in central North Island, New Zealand. The 1080 concentrations measured (mean 57 μg g, max 130 μg g) are considerably higher than those reported by other researchers who collected arthropods ...

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