نتایج جستجو برای: arthropods

تعداد نتایج: 7453  

2013
Baoyan Xue Benguo Zhou Qingfeng Tang Zhengliang Gao

Absract The diversity and community structure of arthropods in the primitive tobacco ecosystem in the South of Anhui province, China was studied. The investigations were undertaken from April to August 2012. The comparisons were undertaken using a combination of community assessment approaches, including morphospecies richness, the Shannon-Weaver diversity index, H', the Simpson dominance index...

Journal: :Journal of General Physiology 1928

Journal: :Memoirs of the Entomological Society of Canada 1991

Journal: :The Florida Entomologist 2000

Journal: :African Entomology 2023

Savannahs are structurally complex ecosystems consisting of a diverse community plants and animals such as arthropods. Arthropods essential in many ecosystem processes that help maintain life on Earth. The anthropogenic conversion natural landscapes into croplands, residential industrial areas has negative impact surface-active arthropods have limited dispersal abilities narrow habitat preferen...

Journal: :The Journal of General Physiology 2003
W. J. Crozier T. J. B. Stier

The creeping of the beetle Tetraopes tetraopthalmus during negatively geotropic orientation shows the angles of orientation (theta) on a surface inclined at alpha degrees to the horizontal to be proportional to sin alpha. The direction of orientation easily suffers temporary reversal to positive as result of handling. Mechanical stability during upward progression should be just possible when K...

2002
Phillip E. Kaufman

There are 10 major arthropod pest species affecting dairy cattle including six fly and four louse species. Damage inflicted by arthropods falls into two categories: direct damage and indirect damage. Direct damage includes blood loss, introduction of salivary secretions, tissue damage, reduced value of saleable animal products, and annoyance. Indirect damage includes transferring pathogenic org...

2017
Janice M. Glime Jørgen Lissner

2015
Yves Basset Lukas Cizek Philippe Cuénoud Raphael K. Didham Vojtech Novotny Frode Ødegaard Tomas Roslin Alexey K. Tishechkin Jürgen Schmidl Neville N. Winchester David W. Roubik Henri-Pierre Aberlenc Johannes Bail Héctor Barrios Jonathan R. Bridle Gabriela Castaño-Meneses Bruno Corbara Gianfranco Curletti Wesley Duarte da Rocha Domir De Bakker Jacques H. C. Delabie Alain Dejean Laura L. Fagan Andreas Floren Roger L. Kitching Enrique Medianero Evandro Gama de Oliveira Jérôme Orivel Marc Pollet Mathieu Rapp Sérvio P. Ribeiro Yves Roisin Jesper B. Schmidt Line Sørensen Thomas M. Lewinsohn Maurice Leponce Robert Guralnick

Quantifying the spatio-temporal distribution of arthropods in tropical rainforests represents a first step towards scrutinizing the global distribution of biodiversity on Earth. To date most studies have focused on narrow taxonomic groups or lack a design that allows partitioning of the components of diversity. Here, we consider an exceptionally large dataset (113,952 individuals representing 5...

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