Results 11 to 20 of about 55 (48)

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

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

Age effects on Nazca booby foraging performance are largely constant across variation in the marine environment: Results from a 5‐year study in Galápagos

Ecology and Evolution, Volume 13, Issue 6, June 2023., 2023
Foraging performance affects the nutritional resources available for reproduction and survival, influenced by the environment and an animal's individual factors, like age. We evaluated how foraging traits, measured across 5 years, changed with age, environmental variation, and their interaction in Nazca boobies, a tropical, pelagic seabird in Galápagos.
Jennifer L. McKee, Emily M. Tompkins, Felipe A. Estela, David J. Anderson   +3 more
wiley   +1 more source

voluModel: Modelling species distributions in three‐dimensional space

Methods in Ecology and Evolution, Volume 14, Issue 3, Page 841-847, March 2023., 2023
Abstract Ecological niche modelling (ENM), species distribution modelling and related spatial analytical methods were first developed in two‐dimensional (2‐D) terrestrial systems; many common ENM workflows organize and analyse geographically structured occurrence and environmental data based on 2‐D latitude and longitude coordinates.
Hannah L. Owens, Carsten Rahbek
wiley   +1 more source

ESTUDIOS DE LA DISTRIBUCIÓN DE LA SARDINA DEL PACÍFICO Sardinops sagax caeruleus (Clupeiformes: Clupeidae): HISTORIA, ESTADO ACTUAL Y PERSPECTIVAS

Ecosistemas y Recursos Agropecuarios, 2014
La sardina del Pacíco (Sardinops sagax caeruleus) es una de las especies pelágicas de mayor importancia en el ecosistema del Pacíco Norte; además, contribuye signicativamente al desarrollo de la industria pesquera.
M Martínez-Porchas
doaj   +1 more source

Assembléia de peixes associados a ambientes consolidados no litoral do Paraná, Brasil: uma análise qualitativa com notas sobre sua bioecologia

Papéis Avulsos de Zoologia, 2009
Recentemente, estudos com peixes recifais vêm recebendo cada vez mais atenção dos pesquisadores. Na costa brasileira cinco províncias zoogeográficas foram determinadas, sendo o Paraná incluído na província sul-sudeste.
Carlos Werner Hackradt, Fabiana Cézar Félix-Hackradt   +1 more
doaj   +1 more source