Results 61 to 70 of about 896,409 (189)

Tongue and Glottis Morphology of Cathartes aura and the Secret of Its Functional Adaptation

Acta Zoologica, EarlyView.
ABSTRACT Cathartes aura, commonly known as the Turkey vulture, is a scavenger bird belonging to the family Cathartidae that is widely distributed throughout the Americas and classified as a New World vulture. Its diet primarily consists of small‐sized carcasses, predominantly of wild animals.
Jean Caio Figueiredo de Almeida, Max Alex Santos Ferreira, Elane Guerreiro Giese, Alanna do Socorro Lima da Silva, Ana Rita de Lima, Érika Branco   +5 more
wiley   +1 more source

Corpses as Repositories of Information and Funerals as Information Centres: Why Natural Selection Favours the Bereaved

Ethology, EarlyView.
Corpses are repositories of information about the cause of death. The distress of the bereaved acts as an honest signal drawing conspecifics to the body, enabling them to learn quickly about the death, adapt their behaviour, and spread knowledge of threats across multiple social levels.
Jacob Dembitzer, Dror Ben‐Ami
wiley   +1 more source

Mercury bioaccumulation in fish of commercial importance from different trophic categories in an Amazon floodplain lake

Neotropical Ichthyology
Thirty-two species of commercially important fish from three trophic levels and nine trophic categories were sampled at a floodplain lake of the Solimões River (Lago Grande de Manacapuru).
Sandra Beltran-Pedreros, Jansen Zuanon, Rosseval Galdino Leite, José Reinaldo Pacheco Peleja, Alessandra Barros Mendonça, Bruce Rider Forsberg   +5 more
doaj   +1 more source

Carcass yield of surubins Pseudoplatystoma spp. reared in ponds under different stocking densities

Semina: Ciências Agrárias, 2014
The aim of this study was to evaluate carcass yield of surubins Pseudoplatystoma spp. reared in ponds under different stocking densities. We performed a completely randomized design, with three treatments (density) and nine repetitions.
Letícia Emiliani Fantini , Carlos Antonio Lopes de Oliveira , Robson Andrade Rodrigues   +2 more
doaj   +1 more source

Shelters or ecological traps? Context‐dependent effects of nestboxes on breeding success in a colonial raptor

Ibis, EarlyView.
Artificial breeding structures, such as nestboxes, can potentially influence the population size and conservation status of bird species relying on heavily human‐modified environments such as agroecosystems and urban areas. However, the effectiveness of these interventions may vary, as artificial structures could attract individuals to suboptimal ...
Alejandro Corregidor‐Castro, Alessandro Berlusconi, Jacopo G. Cecere, Sara Cioccarelli, Claudia De Battisti, Andrea Romano, Diego Rubolini, Andrea Pilastro, Michelangelo Morganti   +8 more
wiley   +1 more source

Can Hawaiian carnivorous caterpillars attack invasive ants or vice versa? [PDF]

, 2010
The Hawaiian Islands have allowed insects to evolve unique habits, because the islands are isolated and originally lacked predators, such as ants and wasps.
Shinji Sugiura
core   +1 more source

Hydromulches in Organic Strawberry Production: Effects on Densities of Insect Pests and Natural Enemies

Journal of Applied Entomology, EarlyView.
ABSTRACT Liquid‐sprayable cellulose hydromulches (HM) are alternatives to plastic polyethylene (PE) mulches for weed suppression in organic agriculture. However, their impact on arthropod pests and natural enemies remains unexplored. Various HMs made of shredded newsprint, water and guar gum were compared against white‐on‐black PE mulch, paper sheet ...
Andres Torres‐Moya, Deirdre A. Prischmann‐Voldseth, Greta Gramig   +2 more
wiley   +1 more source

Fish communities and trophic metrics as measures of ecological degradation: a case study in the tributaries of the river Ganga basin, India

Revista de Biología Tropical, 2013
In India, freshwater aquatic resources are suffering from increasing human population, urbanization and shortage of all kind of natural resources like water.
Vineet Kumar Dubey, Uttam Kumar Sarkar, Ajay Pandey, Wazir Singh Lakra   +3 more
doaj  

Comparative Analysis of the Composition and Diversity of the Intestinal Microflora of Four Fishes with Different Feeding Habits

Progress in Fishery Sciences
Fish are generally classified as herbivorous, carnivorous, omnivorous, or filter-feeders according to feeding habits, including the feeding method and food content.
Hua RONG, Yuqing XIE, Tao ZHAO, Hong YIN, Liyun YUAN, Xianghe LIU, Zihan YANG, Yu SHI, Xiufeng LI, Lei ZHANG   +9 more
doaj   +1 more source

Levels of digestible protein to surubim (Pseudoplatystoma sp.) reared in net cages

Semina: Ciências Agrárias, 2014
The Pseudoplatystoma sp. is species of carnivorous fish that require special attention in the diet offered. This work had the objective to determine the digestible protein requirement of juvenile the Pseudoplatystoma sp. reared in net cages.
Claucia Aparecida Honorato , Thiago Tetsuo Ushizima , Carolina Isabel Isabel Flores Quintana , Cristiane Meldau de Campos, Vanessa Menegatti Marcondes , Camila Aparecida Nascimento , Fábio Mazzotti Santamaria   +6 more
doaj   +1 more source