Results 1 to 10 of about 151,690 (95)

Monitoreo de fauna pelágica de los Montes submarinos del Pacífico colombiano usando BRUVS

Biota Colombiana, 2023
En diciembre de 2021 se desarrolló la primera expedición a los montes submarinos de las dorsales de Malpelo y de Yuruparí. En total se exploraron ocho montes submarinos por medio de BRUVS (Baited Remote Underwater Video Systems). Se desplegaron 48 BRUVS,
Felipe Ladino Archila, Diego Cardeñosa, Sandra Bessudo, Andres Cuellar, Felipe Muriel, John Carvajal, Diego Amariles, Alejandra Duarte   +7 more
doaj   +2 more sources

Genetic Diversity and Population Structure of Squalus cf. mitsukurii (Chondrichthyes: Squalidae) Revealed by ddRAD Sequencing. [PDF]

Anim Genet
ABSTRACT Assessing genetic structure across ocean basins is essential to understand connectivity and guide conservation in data‐deficient open‐water sharks. In this study, we examined the population genomics of Squalus cf. mitsukurii by analyzing tissue samples collected from two distant regions: California, USA (Pacific Ocean) and Pernambuco, Brazil ...
Adachi AMCL, Ariza AA, Ribeiro GDS, Roque PCG, Rotundo MM, Vianna M, Delpiani G, Delpiani SM, de Astarloa JMD, Oliveira C, Foresti F, da Cruz VP.   +11 more
europepmc   +2 more sources

A multiscale seasonal examination of the risk of harm to seabirds from vessels based on co-occurrence in Alaskan waters. [PDF]

Conserv Biol
Abstract Alaska's seascape supports globally significant seabird populations, including vulnerable and threatened species, and hosts economically important commercial fisheries and marine transportation corridors. Seasonal patterns of seabird movements and vessel traffic create a complex landscape of risk, defined as high levels of co‐occurrence ...
Kapsar K, Sullender BK, Kuletz KJ.
europepmc   +2 more sources

Applying habitat and population-density models to land-cover time series to inform IUCN Red List assessments. [PDF]

Conserv Biol, 2019
Abstract The IUCN (International Union for Conservation of Nature) Red List categories and criteria are the most widely used framework for assessing the relative extinction risk of species. The criteria are based on quantitative thresholds relating to the size, trends, and structure of species’ distributions and populations.
Santini L, Butchart SHM, Rondinini C, Benítez-López A, Hilbers JP, Schipper AM, Cengic M, Tobias JA, Huijbregts MAJ.   +8 more
europepmc   +2 more sources

Shearing Tooth Morphology May Allow Sharks to Access Higher Trophic Levels at Smaller Sizes. [PDF]

Ecol Evol
Predator morphology imposes limitations on prey selection due to biomechanical constraints, making some prey functionally inaccessible and thereby constraining predator trophic niches. We assessed how two key components of trophic morphology—tooth shape and body size—affect prey selectivity and trophic niche in two sympatric sharks with contrasting ...
Riverón S, Raoult V, Slip DJ, Mas F, Laporta M, Pereyra I, Silveira S, Harcourt RG.   +7 more
europepmc   +2 more sources

Spatial segregation and bycatch risk as potential drivers of population trends of wandering albatrosses at South Georgia. [PDF]

Conserv Biol
Abstract Spatial segregation in at‐sea distribution is frequently observed in seabirds and can have important implications for conservation and management. Globally, many albatross and petrel populations are declining due to bycatch in fisheries. In South Georgia, the decrease in wandering albatrosses (Diomedea exulans) differs among breeding sites ...
Warwick-Evans V, Pearmain EJ, Thorne L, Phillips RA.   +3 more
europepmc   +2 more sources

Effects of protection on large-bodied reef fishes in the western Indian Ocean. [PDF]

Conserv Biol
Abstract Predatory and large‐bodied coral reef fishes have fundamental roles in the functioning and biodiversity of coral reef ecosystems, but their populations are declining, largely due to overexploitation in fisheries. These fishes include sharks, groupers, Humphead wrasse (Cheilinus undulatus), and Green Humphead parrotfish (Bolbometopon muricatum).
Samoilys M, Osuka KE, Roche R, Koldewey H, Chabanet P.   +4 more
europepmc   +2 more sources

Three-dimensional conservation planning of fish biodiversity metrics to achieve the deep-sea 30×30 conservation target. [PDF]

Conserv Biol
Abstract Accelerating rate of human impact and environmental change severely affects marine biodiversity and increases the urgency to implement the Convention on Biological Diversity (CBD) 30×30 plan for conserving 30% of sea areas by 2030. However, area‐based conservation targets are complex to identify in a 3‐dimensional (3D) ocean where deep‐sea ...
Mathon L, Baletaud F, Lebourges-Dhaussy A, Lecellier G, Menkes C, Bachelier C, Bonneville C, Dejean T, Dumas M, Fiat S, Grelet J, Habasque J, Manel S, Mannocci L, Mouillot D, Peran M, Roudaut G, Sidobre C, Varillon D, Vigliola L.   +19 more
europepmc   +2 more sources

Peces del orden Tetraodontiformes de Colombia

Biota Colombiana, 2006
La mayoría de las especies aquí listadas (56%) existen en Colombia en aguas caribeñas, sin incluir aquellas que aparecen en ambas costas (15%). El alto número de especiesque viven en las dos costas colombianas se explica por la frecuente aparición (16 ...
Arturo Acero P., Andrea Polanco F.
doaj   +8 more sources

Incorporating multidimensional behavior into a risk management tool for a critically endangered and migratory species

Conservation Biology, Volume 37, Issue 5, October 2023., 2023
Abstract Conservation of migratory species exhibiting wide‐ranging and multidimensional behaviors is challenged by management efforts that only utilize horizontal movements or produce static spatial–temporal products. For the deep‐diving, critically endangered eastern Pacific leatherback turtle, tools that predict where turtles have high risks of ...
Nicole Barbour, George L. Shillinger, Eliezer Gurarie, Aimee L. Hoover, Philippe Gaspar, Julien Temple‐Boyer, Tony Candela, William F. Fagan, Helen Bailey   +8 more
wiley   +1 more source