Results 51 to 60 of about 15,052 (221)

Characterisation of Sex Pheromone and Genetic Strain in Rachiplusia nu (Lepidoptera: Noctuidae) Populations Across Brazil

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Rachiplusia nu, known as the sunflower looper (SFL) and belonging to the Plusiinae subfamily, is a major defoliator of soybeans, sunflowers and other horticultural crops across southern South America. This species has recently expanded to central and northern regions of Brazil, becoming a key soybean pest.
Leonardo Figueiredo   +5 more
wiley   +1 more source

Chaco Chachalaca (Ortalis canicollis, Wagler, 1830) feeding ecology in a gallery forest in the South Pantanal (Brazil)

open access: yesBrazilian Journal of Biology
Cracids are generalist frugivores, which often exploit plant food resources such as flowers and leaves, mainly when fruit production declines.
J. Ragusa-Netto
doaj   +1 more source

Reinfestation Sources for Chagas Disease Vector, Triatoma infestans, Argentina

open access: yesEmerging Infectious Diseases, 2006
Reinfestation by Triatoma infestans after insecticide spraying has caused elimination efforts in the dry Chaco region to fail repeatedly. The sources and spatial extent that need to be considered to understand the reinfestation pattern and to plan a ...
María C. Cecere   +3 more
doaj   +1 more source

Occurrence and distribution of sarcoptic mange in wild Neotropical canids

open access: yesMedical and Veterinary Entomology, EarlyView.
Sarcoptic mange affects most Neotropical canid species across multiple countries. It represents a widespread yet largely overlooked conservation threat with potential for cross‐species transmission. Coordinated monitoring and management efforts are needed to understand and mitigate its impacts. Abstract Sarcoptic mange, a contagious skin disease caused
Luan de Jesus Matos de Brito   +1 more
wiley   +1 more source

Agricultural production and bird conservation in complex landscapes of the dry Chaco

open access: yesJournal of Land Use Science, 2015
Fil: Macchi, Leandro. Universidad Nacional de Tucuman. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecologia Regional; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas; Argentina.
Macchi, Leandro   +2 more
openaire   +2 more sources

Effect of Clearance on the Soil Fungi Community in Chaco Dry Forest

open access: yes, 2022
Abstract Purpose The Seasonally dry forests of South America are known as the Gran Chaco are areas vulnerable in the world, the highest percentage of protected areas is found in South America. Anthropogenic processes as clearing of native forests makes ecosystems more fragile to changes, due to agricultural frontier expansion. We purpose study
Cristina S Merlos   +3 more
openaire   +1 more source

A 10,000 Mississippi Kite flock observed in Fuerte Esperanza, Argentina [PDF]

open access: yes, 2006
The Mississippi Kite (Ictinia mississippiensis) is a Neotropical migrant that nests singly or in loose, small colonies in North America from North Carolina and north Florida west to Kansas, southeastern Colorado, and Texas and north along Mississippi ...
Areta, Juan Ignacio, Seipke, Sergio H.
core   +1 more source

Novel Glomeromycotina–moss associations identified in California dryland biocrusts

open access: yesNew Phytologist, EarlyView.
Summary Drylands, which comprise c. 45% of Earth's land area, host biological soil crusts (biocrusts): symbiotic communities of cyanobacteria, fungi, algae, lichen, and bryophytes that stabilize soil and support key ecosystem functions. Moss‐dominated biocrusts are particularly interesting due to their potential to illuminate ancient bryophyte–fungal ...
Kian H. Kelly   +3 more
wiley   +1 more source

Differences in production, carbon stocks and biodiversity outcomes of land tenure regimes in the Argentine Dry Chaco

open access: yesEnvironmental Research Letters, 2017
Rising global demand for agricultural products results in agricultural expansion and intensification, with substantial environmental trade-offs. The South American Dry Chaco contains some of the fastest expanding agricultural frontiers worldwide, and ...
Sofía Marinaro   +4 more
doaj   +1 more source

The Role of Gene Flow in the Diversification of the Monkey Treefrog Complex Across the South American Dry Diagonal

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Understanding Neotropical megadiversity remains challenging due to fundamental taxonomic issues, including identifying and describing cryptic species and their distribution, and the limited knowledge of key factors driving biological diversification. Such challenges are especially prominent in diverse clades with high levels of cryptic species,
Felipe Camurugi   +10 more
wiley   +1 more source

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