Results 81 to 90 of about 2,934,595 (206)

Does the munch affect the bunch? Using community science to explore insect herbivory and fruit production in an understory plant

Ecological Entomology, EarlyView.
We used iNaturalist records, a longitudinal field survey, and a simulated herbivory experiment to explore how insect herbivory factors are associated with Cornus canadensis fruit production. Naturally observed internal and external insect herbivory was mostly low intensity and did not have a strong relationship with fruit production.
Maria Duynisveld, Bennie Mildren, Rhydian Crawford, Paul Manning   +3 more
wiley   +1 more source

Genome assembly of Elcysma westwoodi provides insights into host‐plant cyanogenic glucoside detoxification and chemical defence gene evolution

Insect Molecular Biology, EarlyView.
A chromosome‐level genome of Elcysma westwoodi was assembled. The genome encodes 272 detoxification‐related genes. A single‐copy bCAS was retained for cyanide detoxification. CYP405A and CYP332A were recruited into cyanogenic defence evolution. UGT33A retained a conserved GT‐B fold and catalytic domains.
Minyoung Choi, Murtaza Khan, Juil Kim
wiley   +1 more source

A Self-Calibrated Non-Parametric Time Series Analysis Approach for Assessing Insect Defoliation of Broad-Leaved Deciduous Nothofagus pumilio Forests

Remote Sensing, 2019
Folivorous insects cause some of the most ecologically and economically important disturbances in forests worldwide. For this reason, several approaches have been developed to exploit the temporal richness of available satellite time series data to ...
Roberto O. Chávez, Ronald Rocco, Álvaro G. Gutiérrez, Marcelo Dörner, Sergio A. Estay   +4 more
doaj   +1 more source

Satire and Silence Under Authoritarian Rule: Cotton and Pesticide Perceptions in Tajikistan

Journal of Agrarian Change, EarlyView.
ABSTRACT Over the past 70 years, agricultural chemicals have become a mainstay of cotton farming in Central Asia. This growing reliance on agrochemicals has not remained uncontested. This article analyses the politics of pesticides in Soviet and post‐Soviet Tajikistan by examining how, and to what extent, pesticides have featured in graphic satire, an ...
Irna Hofman, Flora Roberts
wiley   +1 more source

The effect of frequency of defoliation on Themeda triandra in the false thornveld of the eastern Cape.

, 1989
Tufts of Themeda triandra were subjected to different frequencies of defoliation during a single season under irrigated and non-irrigated conditions. Frequent defoliation (> 5 times per year) severely reduced clipped yield on both moisture treatments. On
I.O., Nel, J.E., Danckwerts, L.O., Nel
core  

Somerset Maugham's Failings

Critical Quarterly, EarlyView.
Allan Hepburn
wiley   +1 more source

Functional memory of drought affects leaf chemical defenses and microbial interactions in aspen

New Phytologist, EarlyView.
Experimental design of the common garden study. Summary Drought is an important driver of tree mortality, but its long‐term impacts on trait expression remain poorly understood. Leaves are a key interface at which trees respond to abiotic stress, and foliar traits such as chemical defenses and microbial communities may play a role in determining post ...
Aubrey M. Hawks, Jaycie C. Fickle, Kelly L. Kerr, Dale L. Forrister, Allison M. Perkins, Efthymia Symeonidi, Madelyn Allen, Cannon Fehrenbach, Hsiao‐Nung Chen, Richard L. Lindroth, William R. L. Anderegg, Talia L. Karasov   +11 more
wiley   +1 more source

Effect of intensity and frequency of defoliation on aerial growth and carbohydrate reserve levels in Acacia karroo plants.

, 1989
Acacia karroo trees were defoliated by goats at two intensities and four frequencies; 2, 4, 8 and 12-weekly. Leaf accumulation and carbohydrate reserve levels were compared to a non-defoliated control, and to plants (defoliation controls) which were ...
W.R., Teague
core  

Linking drought strategy to climate‐of‐origin in a widespread C4 grass: hydraulic traits, xylem anatomy and stomatal behaviour in Themeda triandra

New Phytologist, EarlyView.
Climate‐of‐origin of Themeda triandra populations used in this study. Summary Hydraulic, stomatal, and anatomical traits strongly influence plant performance under drought, but the extent to which these trait‐types are coordinated and relate to climate‐of‐origin remains vastly underexplored in herbaceous species relative to woody plants.
Vinod Jacob, Christopher J. Blackman, Brendan Choat, Brian J. Atwell, Eloise Foo, Alejandro Correa‐Lozano, Travis G. Britton, Emma E. Sumner, Ian J. Wright   +8 more
wiley   +1 more source

Sward structure driven by light interception controls grazing efficiency in BRS Zuri guinea grass pastures

Scientific Reports
The hypothesis was that variations in pre-grazing light interception (LI) would result in distinct pasture structures, directly affecting the frequency and severity of defoliation by grazing animals. This study evaluated the effects of four LI levels (80,
Jéssica Gomes Rodrigues, Gelson dos Santos Difante, Denise Baptaglin Montagner, Marislayne de Gusmão Pereira, Gabriela Oliveira de Aquino Monteiro, Juliana Caroline Santos Santana, Alexandre Romeiro de Araújo, Valéria Pacheco Batista Euclides, André Fischer Sbríssia, Luis Carlos Vinhas Ítavo, Eduardo Weis Arze, Amanda Eunice da Silva Moura   +11 more
doaj   +1 more source