Results 81 to 90 of about 24,187 (310)

Susceptibility of Myzus persicae, Brevicoryne brassicae and Nasonovia ribisnigri to fungal biopesticides in laboratory and field experiments [PDF]

, 2020
The aim of this study was to evaluate the potential of entomopathogenic fungi (EPF) for the control of aphid pests of field vegetable crops. Four biopesticides based on the EPF Beauveria bassiana (Botanigard ES and Naturalis L), Cordyceps fumosorosea s.l.
Chandler, Dave, Prince, Gillian
core   +1 more source

Gene‐specific double‐stranded RNAs induce mortality in the South African mealybug Delottococcus aberiae

Pest Management Science, EarlyView.
Gene‐specific double‐stranded RNAs effectively silence essential genes in the invasive citrus pest Delottococcus aberiae, leading to significant mortality through both microinjection and oral delivery. These results provide proof of concept for RNA interference‐based biopesticides as selective and sustainable tools for citrus integrated pest management.
Carolina Gallego‐Giraldo, Alberto Urbaneja, Omar Ruíz‐Rivero, Verónica Aragonés, Marie Guijarro‐Guijarro, José‐Antonio Daròs, Meritxell Perez‐Hedo   +6 more
wiley   +1 more source

A UAV‐based deep learning pipeline for intertidal macrobenthos monitoring: Behavioral and age classification in Tachypleus tridentatus

Remote Sensing in Ecology and Conservation, EarlyView.
The endangered tri‐spine horseshoe crab (Tachypleus tridentatus), a “living fossil” crucial to coastal ecology and biomedical research, is experiencing severe population declines. Effective conservation requires efficient monitoring, which traditional methods cannot deliver at scale. We develop an integrated UAV deep learning framework tailored to this
Xiaohai Chen, Yuyuan Bao, Ziwei Ying, Mujiao Xie, Ting Li, Jixing Zou, Jun Shi, Xiaoyong Xie   +7 more
wiley   +1 more source

Linking stage-resolved population models with field observations: an integrated approach on population dynamics of Pseudocalanus elongatus in the German Bight. [PDF]

, 2012
The population dynamics of Pseudocalanus elongatus have been investigated within the framework of the GLOBEC-Germany project to gain a better understanding of its life cycle and population dynamics and to estimate secondary production in the North Sea.
Hirche, Hans-Jürgen, Moll, Andreas, Peters, Janna, Renz, Jasmin, Stegert, Christoph   +4 more
core  

Zur Biologie des nicht identifizierten invasiven Weberknechtes Leibunum sp. (Arachnida: Opiliones) [PDF]

, 2011
Since about the year 2000 an unidentified, introduced harvestman of the genus Leiobunum has been rapidly invading Europe. The published records are from the Netherlands, Germany, Austria and Switzerland. A population of Leiobunum sp.
Wijnhoven, Hay
core   +2 more sources

Ground‐truthing of satellite imagery to assess seabird colony size: A test using Adélie penguins

Remote Sensing in Ecology and Conservation, EarlyView.
Adélie penguin colony size can be estimated from space using very high‐resolution (VHR; 0.3–0.6 m resolution) satellite imagery due to the contrast between their guano stain and the surrounding terrain. Our study assessed the utility of VHR imagery for making indirect assessments of changes in colony size.
Alexandra J. Strang, Dean P. Anderson, Esme Robinson, Grant Ballard, Annie E. Schmidt, David G. Ainley, Kerry Barton, Fiona Shanhun, Elissa Z. Cameron, Michelle A. LaRue   +9 more
wiley   +1 more source

Semi‐automated seal detection on the Western Antarctic Peninsula: an unsupervised machine learning approach for detecting ice seals in aerial survey data

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a semi‐automated, rule‐based image analysis pipeline to detect ice seals in aerial surveys of the Western Antarctic Peninsula during an unusually low sea ice year. By using simple hierarchical clustering instead of deep learning, the method substantially reduced human annotation effort while achieving 82% recall, identifying 758 ...
Claire McGinnity, Connor C.G. Bamford, Nathan Fenney, Andrew Fleming, Jaume Forcada, Michael S. Tift, Luis A. Hückstädt, Daniel P. Costa, Peter T. Fretwell   +8 more
wiley   +1 more source

EFFECT OF AGE AND BODY WEIGHT AT MOLTING ON THE PERFORMANCE OF BROILER BREEDER HENS UNDER ENVIRONMENTAL CONTROL HOUSES IN PAKISTAN [PDF]

Pakistan Veterinary Journal, 2008
In the present study, 2700 broiler breeder hens of Arbor Acre strain were divided into 27 experimental units (100 each) and allotted to nine treatments randomly having three replications each.
HASSAN M. MALIK, EHSAN-UL-HAQ AND F. AHMAD
doaj  

Historical remote sensing highlights long‐term persistence of Emperor Penguin (Aptenodytes forsteri) colonies

Remote Sensing in Ecology and Conservation, EarlyView.
Remote sensing can reveal population dynamics of Antarctic penguin colonies. In this study, we analyze emperor penguin (Aptenodytes forsteri) guano stains in remote sensing imagery and discover colony presence predating known records for 18 colonies across Antarctica.
Martynas Bielinis, Michelle LaRue, Benjamin M. Kraemer, Catalina Munteanu   +3 more
wiley   +1 more source

MOULTING CYCLE STAGES IN Macrobrachium rosenbergii BY SETOGENESIS METHOD

Boletim do Instituto de Pesca, 2019
This study had the objective of evaluating the duration of the moulting cycle stages of Macrobrachium rosenbergii, using the method of setogenesis. The experiment was conduced in the Prawn Farming Laboratory of the Federal University in Paraiba, in the ...
Marcos Antônio Sinésio da SILVA, Bianca de Oliveira RAMIRO, Marino Eugênio de ALMEIDA NETO, Ricardo Romão GUERRA   +3 more
doaj   +1 more source