Results 91 to 100 of about 13,961 (266)

First record of young‐of‐the‐year smooth hammerhead (Sphyrna zygaena) in coastal waters of Galicia, northwest Spain

Journal of Fish Biology, EarlyView.
Abstract The smooth hammerhead (Sphyrna zygaena) is typically considered an oceanic species and is only rarely observed in the cooler coastal waters of the northeastern Atlantic. On 20 December 2024, a juvenile S. zyganea was captured at 25 m depth in the inner Ría de Pontevedra (Rías Baixas, northwest Spain).
Xabier Pin, Kenn Papadopoulo, Pablo Covelo, Gonzalo Mucientes   +3 more
wiley   +1 more source

In and out: factors influencing two decades of straying and homing by Pacific salmon within the Columbia River basin

Royal Society Open Science
In addition to patch size and spatial isolation, habitat quality can also influence attractiveness of patches to dispersing individuals. Using mark recapture data from 19 populations of Chinook salmon (Oncorhynchus tshawytscha) across 23 years in the ...
Peter A. H. Westley, Andrew H. Dittman, Benjamin W. Nelson, Morgan H. Bond, Molly Payne, Thomas P. Quinn   +5 more
doaj   +1 more source

Multiple paternity and hybridization in two smooth-hound sharks [PDF]

, 2015
Multiple paternity appears to be a common trait of elasmobranch mating systems, with its occurrence likely driven by convenience, due to females seeking to minimize the stress of male harassment.
Gristina, Michele, Marino, ILARIA ANNA MARIA, Mazzoldi, Carlotta, Rasotto, MARIA BERICA, Riginella, Emilio, Zane, Lorenzo   +5 more
core   +1 more source

Post‐fledging care, philopatry and recruitment in brown thornbills [PDF]

Journal of Animal Ecology, 2001
Summary We describe patterns of post‐fledging care, dispersal and recruitment in four cohorts of brown thornbillsAcanthiza pusilla. We examine what factors influence post‐fledging survival and determine how post‐fledging care and the timing of dispersal influence the probability of recruitment in this small, pair breeding, Australian passerine ...
Green, D. J., Cockburn, A.
openaire   +3 more sources

Subtropical marine reserve as key habitats for the critically endangered sand tiger shark (Carcharias taurus) in the Southwestern Atlantic

Journal of Fish Biology, EarlyView.
Abstract This study documents the occurrence, seasonal patterns and reproductive activity of the sand tiger shark (Carcharias taurus) within a no‐take marine protected area in southeastern Brazil, using Baited Remote Underwater Video (BRUV) and diving records.
Ana Clara S. Athayde, Guilherme Bertuzo, Otto Bismarck F. Gadig, Rafael R. Munhoz, Letícia M. Fukushima, Caio R. Pimentel, Fernanda A. Rolim, Guilherme H. Pereira‐Filho, Fabio S. Motta   +8 more
wiley   +1 more source

Molecular relatedness-based analyses reveal breeding site philopatry in female bluntnose sixgill sharks (Hexanchus griseus)

Frontiers in Marine Science
The bluntnose sixgill shark (Hexanchus griseus) is a deep-water, globally distributed, but data-limited species due to its habitat use and cryptic nature.
Shawn Larson, Dayv Lowry, Kelly Andrews, Claude Dykstra, Francis Juanes, Brian Timmer, Samuel May   +6 more
doaj   +1 more source

Long-Term Photo-Identification Reveals the Population Dynamics and Strong Site Fidelity of Adult Whale Sharks to the Coastal Waters of Donsol, Philippines

Frontiers in Marine Science, 2018
Donsol in the Philippines is the longest running community-based whale shark (Rhincodon typus) ecotourism site in Southeast Asia, with peak visitation in 2012 of over 27,000 tourists. In order to understand this aggregation and the importance of the area
Emer McCoy, Raul Burce, David David, Elson Q. Aca, Jennifer Hardy, Jessica Labaja, Sally J. Snow, Alessandro Ponzo, Gonzalo Araujo   +8 more
doaj   +1 more source

The Franciscana (Pontoporia blainvillei) in the Northern Limit of the FMA II: Strandings and Habitat Use in Ilha Grande Bay

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT The presence of the franciscana (Pontoporia blainvillei) at the northern limit of the FMA II was investigated using a range of methods, including monitoring of strandings, boat surveys, and passive acoustic monitoring (PAM). Franciscana strandings were recorded within the distributional gap between Macaé (22°55′ S) and Ilha Grande (23°09′ S ...
Alexandre F. Azevedo, Rafael R. Carvalho, Karina S. Pereira, Lis Bittencourt, Elitieri B. Santos‐Neto, Lara V. Pereira, Beatriz A. Santos, Gian Berardinelli, Haydée A. Cunha, Tatiana L. Bisi, José Lailson‐Brito Jr.   +10 more
wiley   +1 more source

Felsenstein's“one-allele model”of speciation: The role of philopatry in the initial stages of host plant mediated reproductive isolation in Enchenopa binotata

Current Zoology, 2013
The study of speciation genetics is primarily concerned with identifying the genetic traits that allow divergent selection to overcome the homogenizing effects of gene flow.
Frank W. STEARNS, Kelley J. TILMON, Thomas K. WOOD
doaj  

Pliocene Origin, Ice Ages and Postglacial Population Expansion Have Influenced a Panmictic Phylogeography of the European Bee-Eater Merops apiaster

Diversity, 2019
Oscillations of periods with low and high temperatures during the Quaternary in the northern hemisphere have influenced the genetic composition of birds of the Palearctic.
Carina Carneiro de Melo Moura, Hans-Valentin Bastian, Anita Bastian, Erjia Wang, Xiaojuan Wang, Michael Wink   +5 more
doaj   +1 more source