An Equatorial Hemispheric Barrier Shapes the Diversification of Migratory Belenois Butterflies [PDF]
Molecular Ecology, Volume 35, Issue 6, March 2026.ABSTRACT Biogeographic barriers are typically considered prominent geographic features that block or severely restrict dispersal and gene flow. However, mating barriers can also emerge within continuous suitable habitats, driven by ecological or behavioural constraints. Migratory insects show an extraordinary capacity to traverse vast geographic ranges,
Anna Janiczek +13 more
wiley +2 more sources
Analysis of xyloglucan metabolism mutants highlights the prominent role of xylose cleavage in seed dormancy [PDF]
The Plant Journal, Volume 122, Issue 1, April 2025.SUMMARY Seed dormancy is an adaptive trait that delays germination until environmental conditions become favorable for seedling survival and growth. Germination has been shown to depend on the mechanical resistance strength of the covering layers (testa and endosperm) that counteracts the growth force of the embryo. Cell wall remodeling is essential in
Hiromi Suzuki +11 more
wiley +2 more sources
Seasonal Dynamics of Resource Availability and Human Presence Shape Habitat Use of Large Carnivores in Chad [PDF]
Ecology and Evolution, Volume 16, Issue 7, July 2026.Seasonal variation in resource availability and human activity can strongly influence large carnivore space use, yet these dynamics remain poorly documented in Central African savannas. Using dry and wet season camera‐trap surveys in Zakouma National Park, Chad, we show that prey availability drives carnivore space use in the dry season, and that ...
Chiara Fraticelli +7 more
wiley +2 more sources
Patterns of Technical Variation in Chimpanzee Termite Fishing Behavior in Mbam and Djerem National Park, Cameroon [PDF]
American Journal of Primatology, Volume 87, Issue 3, March 2025.ABSTRACT Chimpanzees exhibit considerable inter‐ and intra‐community variation in cognitively complex tool use behaviors, often attributed to social, genetic, and environmental factors. Termite fishing is a well‐documented chimpanzee tool‐using behavior that has been the subject of comparative research exploring behavioral variation between chimpanzee ...
Tyler C. Andres‐Bray +9 more
wiley +2 more sources
Assessment of Vegetation Habitat Types and Characteristics of Potential Nesting Trees for White‐Backed Vultures (Gyps africanus) in Kempiana and Manyeleti Nature Reserves, Mpumalanga Province, South Africa [PDF]
Ecology and Evolution, Volume 15, Issue 3, March 2025.The study revealed that Scavenger Vultures (Gyps africanus) prefer to nest in mixed forests with grass rather than in grasslands, bare ground, or built‐up environments. They also choose tall, wide trees. These results confirm that these vultures do not choose their nesting trees at random, but according to specific criteria.
Fidèle Ezéchiel K. Hounnouvi +4 more
wiley +2 more sources
Evolution des flores et de la végétation Tertiaires en Afrique, au nord de PEquateur
Bothalia: African Biodiversity & Conservation, 1983 La repartition de la flore Tertiaire en Afrique, três différente de l’actuelle, se comprend si on tient compte de deux facteurs essentiels: la regression des mers épicontinentales vers le nord et la dérive du continent africain.
E. Boureau +3 more
doaj +1 more source
An An accurate molecular method to sex elephants using PCR amplification of Amelogenin gene
Pachyderm, 2020 The use of molecular methods to identify the sex of elephants from non-invasive samples is essential for studies of population dynamics and population genetics.
George Lohay
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Incidence d’helminthoses chez le buffle d’eau en Amazonie orientale, Brésil
Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1997 L'incidence des nématodes gastro-intestinaux a été étudiée sur trois groupes de veaux buffles d'eau (A, B, C) par le comptage des oeufs par gramme de fèces (OPG), par l'examen post-mortem et par l'identification des larves infestantes (L3) dans le ...
Hugo Didonet Láu
doaj +1 more source
Distribution des Rhipicephalus du bétail dans les steppes et savanes d'Afrique Occidentale
Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1964 Seuls sont envisagés ici les Rhipicephalus exophiles, dont les adultes infestent le bétail et le grand gibier dans les formations végétales ouvertes. Après un rappel sur l'habitat des tiques et sur la phytogéographie de la sous-région, la distribution de
Pierre-Claude Morel
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Pondérer les espèces dans les formations herbacées très hautes
Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1996 Les méthodes d'inventaire classiques ne sont pas utilisables dans les formations herbacées très hautes (supérieures à 2 m). Les auteurs proposent de faire 33 observations par parcelle avec un quadrat en U de i m de côté.
Philippe Daget, T.S. Konaté
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