Results 41 to 50 of about 1,251,266 (177)

Vertical restraints and competition policy [PDF]

open access: yes, 1996
This report considers the private and social welfare effects of vertical restraints - whereby contractual arrangements between suppliers (manufacturers) and distributors (retailers) extend beyond simple arms-length pricing.
Dobson, Paul   +3 more
core  

Temporal-spatial distribution of oceanic vertical deflections determined by TOPEX/Poseidon and Jason-1/2 missions

open access: yesEarth Sciences Research Journal, 2016
Deflections of the Vertical (DOV) are essential data in the geodetic observation reduce, the earth gravity field and geoid model refinement, and the mass earth change. The meridional and prime vertical components of global oceanic DOVs are estimated from
Jin Yun Guo   +5 more
doaj   +1 more source

Differences in characteristics between naturalized threatened plants and other threatened plants

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao   +10 more
wiley   +1 more source

Anticompetitive Vertical Merger Waves [PDF]

open access: yes, 2013
We develop a model of vertical merger waves leading to input foreclosure. When all upstream firms become vertically integrated, the input price can increase substantially above marginal cost despite Bertrand competition in the input market.
Schutz, Nicolas   +2 more
core   +1 more source

Acclimatisation duration, not just release type, drives post‐release settlement in a large‐scale carnivore reintroduction programme

open access: yesJournal of Applied Ecology, Volume 63, Issue 5, May 2026.
Our study highlights that when acclimatisation periods are too short, the substantial economic and logistical investment in soft‐release protocols may fail to deliver the expected conservation gains. Therefore, defining evidence‐based acclimatisation periods that are long enough to promote settlement, yet compatible with logistical constraints, may ...
Pablo Cisneros‐Araujo   +14 more
wiley   +1 more source

Distribución de foraminíferos bentónicos (Protozoa: Foraminiferida) en la ensenada Quillaipe (41°32' S; 72°44' O), Chile: Implicaciones para el estudio del nivel del mar Distribution of benthic foraminifera (Protozoa: Foraminiferida) in the Quillaipe Inlet (41°32' S; 72°44' W), Chile: Implications for sea level studies

open access: yesRevista Chilena de Historia Natural, 2010
Los foraminíferos de las marismas salobres son utilizados como indicadores del cambio producido en el nivel del mar durante el Holoceno. No obstante, los foraminíferos de las marismas de Chile han sido escasamente estudiados por lo que se desconoce la ...
LEONARDO D FERNÁNDEZ, JAIME A ZAPATA
doaj  

Diagnosing scaling bottlenecks in 10 community conservation initiatives in southern and eastern Africa

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Scaling area‐based conservation, including initiatives led or comanaged by Indigenous Peoples and local communities, is a flagship goal of the Kunming‐Montreal Global Biodiversity Framework. Conservationists often aspire to scale initiatives, but this is rarely achieved in practice. Identifying and addressing factors that limit initiative adoption (i.e.
Thomas Pienkowski   +39 more
wiley   +1 more source

Hormigas arbóreas del Parque Nacional Natural Gorgona (Pacífico de Colombia)

open access: yesRevista de Biología Tropical, 2014
Este trabajo se enfocó en el conocimiento de la mirmecofauna arbórea de Gorgona, ecosistema insular de la zona de vida de bosque lluvioso tropical (27ºC, 6 000mm de precipitación promedio anual). En noviembre de 2007 se muestrearon 16 árboles mediante la
Patricia Chacón de Ulloa   +3 more
doaj  

Amphibians' Expansion to Record Elevations Influences Chytrid (Batrachochytrium dendrobatidis) Infection Dynamics

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Peruvian frogs underwent a climate‐driven range expansion into deglaciating mountains, exposing themselves and their fungal pathogen Batrachochytrium dendrobatidis (Bd) to challenging new thermal environments. Bd has dispersed extensively in these new habitats, and elevation may mediate the apparent sublethal impacts of infection for frogs.
Emma Steigerwald   +6 more
wiley   +1 more source

Estratificación vertical y preferencia de hospedero de las epífitas vasculares de un bosque nublado de Chiapas, México

open access: yesRevista de Biología Tropical, 2008
En escala local, la alta diversidad de epífitas vasculares en bosques montanos neotropicales ha sido explicada por que logran estratificar verticalmente al dosel y tienen relaciones específicas con sus hospederos.
Nayely Martínez-Meléndez   +2 more
doaj  

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