Results 71 to 80 of about 7,173 (200)

Seasonal and Within‐Day Variation on Hummingbirds Visits and Dominance Hierarchy in a Brazilian Cerrado Area

open access: yesAustral Ecology, Volume 51, Issue 3, March 2026.
ABSTRACT Plant‐hummingbird interaction networks can be influenced by environmental conditions and resources, which vary seasonally and daily. We aimed to understand how variations in these parameters across these two temporal windows influence patterns of plant‐hummingbird interactions and hummingbirds dominance hierarchies in a Brazilian Cerrado ...
Jeane Lima‐Passos   +3 more
wiley   +1 more source

Bright and Long: Day Length Modulates the Phenology of Two Myrtaceae Species in Upper Montane Mixed Ombrophilous Forest

open access: yesAustral Ecology, Volume 51, Issue 3, March 2026.
ABSTRACT The Upper Montane Mixed Ombrophilous Forest is a humid montane ecosystem characterised by cold winters and a rich Myrtaceae flora. We investigated the vegetative and reproductive phenology of Myrceugenia euosma (O. Berg) D. Legrand and Siphoneugena reitzii D.
Bruno Jan Schramm Corrêa   +5 more
wiley   +1 more source

Stimulus specificity of the generation of leukotrienes by dog mastocytoma cells. [PDF]

open access: yes, 1983
Isolated dog mastocytoma cells sensitized with dog anti-ragweed IgE and challenged with ragweed antigen or incubated with ionophore A23187 or the carboxy-terminal dodecapeptide of platelet factor 4, PF4(59-70), release histamine and concurrently generate
Goetzl, EJ, Gold, WM, Phillips, MJ
core  

How are we choosing species for direct seeding restoration in megadiverse neotropical landscapes? Recommendations from projects implemented in Brazil

open access: yesRestoration Ecology, Volume 34, Issue 3, March 2026.
Direct seeding for ecological restoration is a cost‐effective and scalable method, but its effectiveness largely relies on choosing the appropriate species. Understanding the criteria used to select species is critical for optimizing restoration outcomes, especially in the face of limited resources and ongoing environmental changes.
Mariane C. Inocente   +6 more
wiley   +1 more source

Fungal literature records database of the Northern West Siberia (Russia) [PDF]

open access: yesBiodiversity Data Journal, 2020
Nina Filippova   +11 more
doaj   +3 more sources

Effects of aldicarb and fungicides on Pratylenchus penetrans populations, root rot and net blotch severity on barley [PDF]

open access: yes, 1995
Les populations du nematode des lésions (Pratylenchus penetrans), lequel produit des lésions nécrotiques dans le cortex racinaire, ont été mesurées dans des parcelles expérimentales d'orge (Hordeum vulgare) en 1988,1989 et 1990. Les nematodes des lésions
Johnston, H.W., Kimpinski, J.
core   +1 more source

Dominance of Ricinus communis in the Semi‐Arid Region Mediated by Allelopathy

open access: yesWeed Research, Volume 66, Issue 2, March/April 2026.
ABSTRACT The introduction of invasive alien species can adversely affect the functioning of natural ecosystems. Ricinus communis L., widely present in the Brazilian semi‐arid region, establishes itself in areas with native species, such as Handroanthus impetiginosus (Mart.
Bruno M. Alcântara   +7 more
wiley   +1 more source

Two new endophytic Microascus species from Capparis spinosa L. in Iran [PDF]

open access: yesJournal of Crop Protection
To identify the endophytic fungi of the caper plant, samples were collected from the healthy leaves, stems, and roots from Bushehr and Qom provinces during the summer and early autumn of 2022.
Samira Karimzadeh   +3 more
doaj   +1 more source

Kuulo Kalamees – 75 [PDF]

open access: yes, 2017
Kuulo Kalamees was born in Tartu on April 15, 1934. In 1958, he graduated from the University of Tartu as a biologist-botanist, his thorough diploma paper treated the agarics of southeastern Estonia.
Vaasma, Mall
core   +1 more source

Undervalued Ecosystems: Ponds Boost Regional Macrophyte Diversity

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Ponds—depressional wetlands with ≤ 2 ha—are largely undervalued worldwide, despite serving as crucial diversity reservoirs. However, the extent to which ponds support diversity at the landscape scale is still underappreciated. Here, we investigate the contributions of ponds to macrophyte beta and gamma diversity in a subtropical wetland ...
Daniel Grasel   +3 more
wiley   +1 more source

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