Results 71 to 80 of about 20,982 (272)

Concentration of heavy metals in tissues of green turtles (Chelonia mydas) sampled in the Cananéia estuary, Brazil

open access: yesBrazilian Journal of Oceanography, 2009
Thirty specimens (15 adults and 15 juveniles) of Chelonia mydas found in the Cananéia estuary in the state of São Paulo on the southeastern Brazilian coast between January 2005 and September 2006, were analyzed The concentrations of Cd, Cu, Pb, Mn and Ni
Edison Barbieri
doaj   +1 more source

DuckNet: an open‐source deep learning tool for waterfowl species identification in UAV imagery

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Using drones with thermal‐RGB sensors and a deep learning model (RetinaNet with ResNet‐50), we surveyed non‐breeding waterfowl across restored wetlands in the Mississippi Alluvial Valley. Our model, DuckNet, achieved high accuracy and offers an open‐source, customizable tool for automated waterfowl detection to support conservation monitoring ...
Zack Loken   +4 more
wiley   +1 more source

Hawksbill (Eretmochelys imbricata) and Green Turtle (Chelonia mydas) Nesting and Beach Selection at Príncipe Island, West Africa [PDF]

open access: yes, 2019
Hawksbills (Eretmochelys imbricata) and green turtles (Chelonia mydas) are the predominant nesting sea turtle species on the beaches of Príncipe Island in the Gulf of Guinea.
Bolten, Alan B.   +2 more
core  

One number to rule them all: The Wildlife Sperm Index for standardized gamete assessment

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract In wildlife conservation, breeding programmes focused on reintroduction are critical to recovering endangered species. Assisted reproductive technologies (ARTs) and biobanking play pivotal roles in these efforts but depend on high‐quality gametes.
Leah Jacobs   +4 more
wiley   +1 more source

Island‐restricted reptiles are more threatened but less studied than their mainland counterparts

open access: yesConservation Science and Practice, EarlyView.
Reptiles are highly diverse on islands, yet there is no comprehensive overview of island‐restricted reptiles (IRRs) regarding their distribution, threat status, and research efforts. Our assessment revealed that despite IRRs comprising nearly a quarter of global reptile species and 30.8% being threatened, only 7.2% of the literature focuses on them ...
Sara F. Nunes   +6 more
wiley   +1 more source

Características de la anidación de la tortuga verde Chelonia mydas (Testudinata, Cheloniidae) en la playa Caleta de los Piojos, Cuba, a partir de marcaciones externas [PDF]

open access: yesAnimal Biodiversity and Conservation, 2007
Nesting characteristics of the Green turtle Chelonia mydas (Testudinata, Cheloniidae) at Caleta de los Piojos Beach, Cuba, determined from tagging studies Green turtle (Chelonia mydas) females nesting during 2002 and 2003 nesting seasons at Caleta de ...
Ferrer Sánchez, Y.   +2 more
doaj  

Microsatellite DNA Analysis on the Polyandry of Green Sea Turtle Chelonia mydas

open access: yesHayati Journal of Biosciences, 2013
Green turtle (Chelonia mydas; Testudines) is included in the group of polyandry animals, which is single female mated with many male. DNA polymorphism method generally considered to have a high degree of accuracy as compared to other methods to elucidate
DEWI PURNAMA   +2 more
doaj   +1 more source

Farancia [PDF]

open access: yes, 1982
Number of Pages: 2Integrative BiologyGeological ...
Mitchell, Joseph C.
core   +1 more source

Anthropogenic impacts on green turtles Chelonia mydas in New Zealand

open access: yesEndangered Species Research, 2018
Conservation strategies to sustain endangered green turtle Chelonia mydas populations must categorise and mitigate a range of anthropogenic threats. This study provides first insights into some of the adverse effects of anthropogenic activities on green ...
Daniel A. Godoy, K. Stockin
semanticscholar   +1 more source

Visual Modelling to Predict Behavioural Responses of Catsharks, Skates, and Plaice to Artificial Light for Use in Bycatch Reduction

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Light can be used to deter bycatch from fishing nets, but few studies have aimed to quantify how species view and respond to light. Here, we used visual models to predict how target (plaice Pleuronectes platessa) and bycatch (small‐spotted catshark Scyliorhinus canicular and undersized skates, Raja spp) species, captured in mixed demersal ...
Jasmine Somerville   +2 more
wiley   +1 more source

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