Results 31 to 40 of about 3,269 (164)
Paralelo a un estudio de zooplancton (1999-2000), se hicieron observaciones a bordo de un bote inflable, sobre la presencia o ausencia de delfines a lo largo de un transecto (~8 km long) en la parte central de Bahía Culebra (24 km² ), Golfo de Papagayo ...
Karina Rodríguez Sáenz +1 more
doaj
[Changes in mangrove coverage in Culebra Bay, North Pacific of Costa Rica (1945-2010)].
Despite the economic and environmental services that mangroves provide, they continue to be threatened by overexploitation, pollution, and land use change. Costa Rica has mangrove areas on the Pacific and Caribbean coasts, and cover has been declining since the 1980s. However, data on mangrove coverage are not continually updated and are often based on
Benavides Varela, Catalina +2 more
openaire +2 more sources
Superficial seawater temperature (SST) and at two depths (7 and 12 m) were measured non-continuously during the study of the corals and coral reefs of Culebra Bay (1993-1996). SST showed seasonal variations of ~4°C. The highest average temperatures (27.0 ± 0.1, range 23-29°C) were during the rainy season from May to November and the lowest (22.9 ± 0.3 ...
openaire +3 more sources
The bees of Greater Puerto Rico (Hymenoptera: Apoidea: Anthophila) [PDF]
The bee fauna of the Greater Puerto Rico area was studied. A review of the previous relevant studies is presented. An annotated catalog and information about the origin and distributional patterns are also provided.
Franz, Nico M., Genaro, Julio A.
core +1 more source
Nuevas adiciones a la fauna de crustáceos decápodos de Bahía Culebra, Guanacaste, Costa Rica
La fauna de crustáceos de Bahía Culebra, Guanacaste, Pacífico norte de Costa Rica, fue estudiada antes de la década de 1940. Basado en recolectas, principalmente de las últimas dos décadas y depositadas en el Museo de Zoología, Universidad de Costa Rica,
Rita Vargas-Castillo
doaj
[Medusae (Cnidaria: Hydrozoa) from a coastal upwelling zone, Culebra Bay, Pacific, Costa Rica].
The hydromedusae have an important role in marine trophic webs due to their predatory feeding habits. This is the first study of this group of gelatinous marine zooplankton in a coastal upwelling area of Central America. The composition and abundance variability of hydromedusae were studied during six months in 1999 at four stations in Culebra Bay ...
Karina, Rodríguez-Sáenz +2 more
openaire +1 more source
Urbanization alters ecosystems and evolutionary processes. Processes like air pollution by tropospheric ozone contribute to the decline of urban and peri‐urban ecosystems, such as Abies religiosa forests in the peripheral mountains southwest of Mexico City.
Verónica Reyes‐Galindo +10 more
wiley +1 more source
Bahía Culebra está ubicada en la costa Pacífica norte de Costa Rica en una región de afloramiento estacional. En este trabajo presento la historia de la investigación marina en Bahía Culebra, para sintetizar lo que se ha hecho y resaltar lo que falta por
Jorge Cortés
doaj
Commodity risk assessment of Petunia spp. and Calibrachoa spp. unrooted cuttings from Kenya
Abstract The European Commission requested the EFSA Panel on Plant Health to evaluate the probability of entry of pests (likelihood of pest freedom at entry), including both regulated and non‐regulated pests, associated with unrooted cuttings of the genera Petunia and Calibrachoa produced under physical isolation in Kenya. The relevance of any pest for
EFSA Panel on Plant Health (PLH) +33 more
wiley +1 more source
Abstract Models of near‐field tsunamis and an extreme hurricane provide further evidence for a great precolonial earthquake along the Puerto Rico Trench. The models are benchmarked to brain‐coral boulders and cobbles on Anegada, 125 km south of the trench.
Yong Wei +2 more
wiley +1 more source

