Results 101 to 110 of about 77,602 (280)

A RANGELAND GRASSHOPPER INSURANCE PROGRAM [PDF]

open access: yes
The incidence of benefits and costs from controlling rangeland grasshoppers on public grazing lands poses problems of economic efficiency and distributional equity. Public grasshopper control programs operate like public disaster assistance.
Davis, Robert M., Skold, Melvin D.
core   +1 more source

Flooding affects fluctuating asymmetry but not growth of a riparian orbweaving spider

open access: yesEcological Entomology, EarlyView.
In a mesocosm experiment we assessed the impact of flood on aquatic insect emergence and on spider development using geometric morphometric analysis of fluctuating asymmetry. We observed 45% higher emergence in flooded mesocosm throughout the season. Spiders did not grow bigger but exhibited ~15% lower fluctuating asymmetry than in controls.
Stephane Mutel   +10 more
wiley   +1 more source

The complete mitochondrial genome of a grasshopper endemic to the Qinghai-Tibet plateau, Uvaroviola multispinosa (Acrididae: Oedipodinae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
The grasshopper Uvaroviola multispinosa (Acrididae: Oedipodinae), is an agricultural pest to pasture and limitedly distributed in Qinghai-Tibet plateau of China. The complete mitochondrial genome of U.
Bing Yu, De-Long Guan, Sheng-Quan Xu
doaj   +1 more source

The classification of insect communities: Lessons from orthopteran assemblages of semi-dry calcareous grasslands in central Germany

open access: yesEuropean Journal of Entomology, 2008
Whereas the classification of plant communities has a long tradition that of animal assemblages remains poorly developed. Here we propose a classification scheme for orthopteran communities based on regional "character species", "differential species ...
Dominik PONIATOWSKI, Thomas FARTMANN
doaj   +1 more source

Multi-Conjugate Adaptive Optics Simulator for the Thirty Meter Telescope: Design, Implementation, and Results

open access: yes, 2018
We present a multi-conjugate adaptive optics (MCAO) system simulator bench, HeNOS (Herzberg NFIRAOS Optical Simulator). HeNOS is developed to validate the performance of the MCAO system for the Thirty Meter Telescope, as well as to demonstrate techniques
Andersen, David   +7 more
core   +1 more source

Integrating remote‐sensing and meteorological data to identify key drivers of the potential distribution of a grassland grasshopper

open access: yesEcological Entomology, EarlyView.
An ensemble model achieved excellent accuracy (AUC = 0.973) in predicting the potential distribution of O. decorus asiaticus. Climate (temperature & August precipitation) and vegetation type are the primary drivers defining the species' suitable habitats.
Du Bobo   +5 more
wiley   +1 more source

Orthopteran communities in the conifer-broadleaved woodland zone of the Russian Far East

open access: yesEuropean Journal of Entomology, 2008
We investigate orthopteran communities in the natural landscape of the Russian Far East and compare the habitat requirements of the species with those of the same or closely related species found in the largely agricultural landscape of central Europe ...
Thomas FARTMANN   +2 more
doaj   +1 more source

Floral resource strips enhance parasitoid abundance and diversity in apple orchards and promote agroecological advances in a South African biosphere reserve

open access: yesInsect Conservation and Diversity, EarlyView.
Floral resource strips within apple orchards increased parasitoid abundance and influenced community composition, enhancing local biodiversity in the Kogelberg Biosphere Reserve's transition zone. Ruderal and natural fynbos habitats supported higher parasitoid richness and abundance, emphasising the importance of conserving semi‐natural habitats ...
Fabrizia Ratto   +7 more
wiley   +1 more source

Spartan Daily, June 3, 1943 [PDF]

open access: yes, 1943
Volume 31, Issue 147https://scholarworks.sjsu.edu/spartandaily/10807/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +2 more sources

Phenotypic pattern over centric fusion clinal variation in the water-hyacinth grasshopper, Cornops aquaticum (Orthoptera: Acrididae) [PDF]

open access: yes, 2018
The water-hyacinth grasshopper, Cornops aquaticum, occurs in freshwater environments in the New World between latitudes 23°N and 35°S. At the southernmost margin of this distribution the populations are polymorphic for three centric fusions (Robertsonian
Bownes   +21 more
core   +1 more source

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