Results 11 to 20 of about 256 (153)

Machine and deep learning approaches to understand and predict habitat suitability for seabird breeding. [PDF]

Ecol Evol, 2023
Understanding seabird breeding habitat selection and suitability is often complex due to the integration of land and sea features across multiple spatial scales. A complementarity approach between convolutional neural network (CNN) and random forest (RF) models was applied to predict and explain the selection pattern of tropical larids breeding ...
Garcia-Quintas A, Roy A, Barbraud C, Demarcq H, Denis D, Lanco Bertrand S.   +5 more
europepmc   +2 more sources

Estructura y composición florística del bosque nuboso de la Isla del Coco

Tecnología en Marcha, 2014
En el Parque Nacional Isla del Coco (Costa Rica) durante el 2012, se establecieron 6 Parcelas Permanentes de Muestreo (PPM) de 2500 m2 cercanas a los Cerros Yglesias y Pelón (630 y 560 msnm, respectivamente) con el de caracterizar la estructura y ...
Michael Antonio Porras-Jiménez, Luis Guillermo Acosta-Vargas, Marvin Castillo-Ugalde, Ruperto Quesada-Monge   +3 more
doaj   +2 more sources

Erosión en las playas de Costa Rica, incluyendo la Isla del Coco

InterSedes, 2013
La mayoría de las playas de Costa Rica, tanto en el Pacífico (incluyendo la Isla del Coco), como en el Caribe, experimentan procesos de erosión. Algunos lugares que se encuentran en playas abiertas muestran erosión más acelerada y requieren acción inmediata, mientras que playas hacia el interior de bahía o golfos, aunque también evidencian cambios en ...
openaire   +6 more sources

Facilitative interspecific interactions in marine vertebrates across scales: from individuals to ecosystems. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT Facilitative interspecific interactions (FIIs) confer benefits to at least one participant without detriment to others. Although often less emphasised than antagonistic interactions in ecological studies, this review highlights the significant ecological role of FIIs across biological scales – from individual behaviours to population ...
Vontobel ED, Smout S, Rodrigues Filho JL, Angelini R, Cantor M, Daura-Jorge FG.   +5 more
europepmc   +2 more sources

Co‐acquisition of mineral‐bound iron and phosphorus by natural Trichodesmium colonies

Limnology and Oceanography, Volume 68, Issue 5, Page 1064-1077, May 2023., 2023
Abstract Low iron (Fe) and phosphorus (P) ocean regions are often home to the globally important N2‐fixing cyanobacterium Trichodesmium spp., which are physiologically adapted to Fe/P co‐limitation. Given Trichodesmium's eminent ability to capture particles and the common associations between Fe and P in sediments and aerosols, we hypothesized that ...
Yeala Shaked, Dirk de Beer, Siyuan Wang, Futing Zhang, Anna‐Neva Visser, Meri Eichner, Subhajit Basu   +6 more
wiley   +1 more source

Genetic population dynamics of the critically endangered scalloped hammerhead shark (Sphyrna lewini) in the Eastern Tropical Pacific

Ecology and Evolution, Volume 12, Issue 12, December 2022., 2022
The scalloped hammerhead shark is a Critically Endangered (IUCN Red List), circumglobally distributed species in warm temperate and tropical seas. This species exhibits both periods of restricted movements as well a strong migratory propensity and is known to form iconic, large seasonal aggregations at offshore oceanic islands.
Sydney P. Harned, Andrea M. Bernard, Pelayo Salinas‐de‐León, Marissa R. Mehlrose, Jenifer Suarez, Yolani Robles, Sandra Bessudo, Felipe Ladino, Andrés López Garo, Ilena Zanella, Kevin A. Feldheim, Mahmood S. Shivji   +11 more
wiley   +1 more source

Rare coral and reef fish species status, possible extinctions, and associated environmental perceptions in Mauritius

Conservation Science and Practice, Volume 3, Issue 11, November 2021., 2021
Abstract Mauritius is reported to have the highest marine species endemism in the Western Indian Ocean faunal Province but the status of these species has not been evaluated. To address this knowledge gap, 119 reef sites were sampled to evaluate populations of 16 species of rare and endemic reef fish and corals using scuba‐based surveys conducted by ...
Tim McClanahan, Vikash Munbodhe, Josheena Naggea, Nyawira Muthiga, Ranjeet Bhagooli   +4 more
wiley   +1 more source

Using very‐high‐resolution satellite imagery and deep learning to detect and count African elephants in heterogeneous landscapes

Remote Sensing in Ecology and Conservation, Volume 7, Issue 3, Page 369-381, September 2021., 2021
In this study, we apply a Convolution Neural Network (CNN) model to automatically detect and count African elephants in a woodland savanna ecosystem in South Africa. We use WorldView‐3 and 4 satellite data – the highest resolution satellite imagery commercially available.
Isla Duporge, Olga Isupova, Steven Reece, David W. Macdonald, Tiejun Wang, Nathalie Pettorelli, Graeme Buchanan   +6 more
wiley   +1 more source

Earth's Magnetic Field Strength and the Cretaceous Normal Superchron: New Data From Costa Rica

Geochemistry, Geophysics, Geosystems, Volume 22, Issue 4, April 2021., 2021
Abstract Constraining the long‐term variability and average of the Earth's magnetic field strength is fundamental to understanding the characteristics and behavior of the geomagnetic field. Questions remain about the strength of the average field, and the relationship between strength and reversal frequency, due to the dispersion of data from key time ...
A. Di Chiara, L. Tauxe, H. Staudigel, F. Florindo, M. Protti, Y. Yu, J.‐A. Wartho, P. van den Bogaard, K. Hoernle   +8 more
wiley   +1 more source

Introgression of Chinese haplotypes contributed to the improvement of Danish Duroc pigs. [PDF]

Evol Appl, 2019
Abstract The distribution of Asian ancestry in the genome of Danish Duroc pigs was investigated using whole‐genome sequencing data from European wild boars, Danish Duroc, Chinese Meishan and Bamaxiang pigs. Asian haplotypes deriving from Meishan and Bamaxiang occur widely across the genome.
Chen M, Su G, Fu J, Wang A, Liu JF, Lund MS, Guldbrandtsen B.   +6 more
europepmc   +2 more sources