Results 51 to 60 of about 3,578 (189)

Molecular Identification and Geometric Morphometric Analysis of Haematobosca aberrans (Diptera: Muscidae)

Insects, 2020
The genus Haematobosca Bezzi, 1907 (Diptera: Muscidae) contains haematophagous flies of veterinary importance. A new fly species of this genus was recognised from northern Thailand based on morphological characters and described as Haematobosca aberrans ...
Tanasak Changbunjong, Jiraporn Ruangsittichai, Gerard Duvallet, Adrian C. Pont   +3 more
doaj   +1 more source

Evaluating machine learning models for multi‐species wildlife detection and identification on remote sensed nadir imagery in South African savanna

Wildlife Biology, EarlyView.
This research paper investigates the efficacy of leading machine learning (ML) models for detecting and identifying ungulate species in African savanna using nadir imagery from unmanned aerial vehicles (UAVs). Traditional aerial counting methods, while widely used, suffer from significant limitations in accuracy and precision, in part due to human ...
Paul Allin, Fadel Seydou, Radloff Frans, Andrew Davies, Alison Leslie   +4 more
wiley   +1 more source

Exploring sources of uncertainty in the estimate of waterfowl harvest in the United Kingdom

Wildlife Biology, EarlyView.
There is an urgent need to gather data on harvest rates of waterbirds in Europe to assess the sustainability of hunting. Estimates of total waterbird harvest in the United Kingdom (UK) and the relative harvest of different huntable species come from two separate surveys, the Value of Shooting (PACEC 2014) and National Gamebag Census (NGC), and these ...
Matthew B. Ellis, Hannah M. Lewis, Tom C. Cameron   +2 more
wiley   +1 more source

Revisiting the evolution of wing dimorphisms in the genomics era

Evolution
Abstract Dispersal strategies are critical life history traits influencing bio-geographical, ecological, and evolutionary patterns and processes, including range expansion and contractions, abiotic and biotic interactions, and rates of speciation.
Lisa A Treidel, Colin D Meiklejohn, Kristi L Montooth   +2 more
openaire   +1 more source

Sexual dimorphism in bat wing morphology — variation among foraging styles

Canadian Journal of Zoology, 2021
Sexual dimorphism can lead to differences in foraging style among conspecifics due to morphological differences. Within bats, maneuverability and speed of flight are influenced by wing shape and size, which may differ between sexes. Female bats gain about 30% of their body mass during pregnancy, affecting their agility and flight efficiency.
Maucieri, D.G., Ashbaugh, A.J., Theodor, J.M.   +2 more
openaire   +2 more sources

The Greatest Show (Birds) on Earth: Public Presentations and Their Welfare Impacts on Zoo‐Housed Birds

Zoo Biology, EarlyView.
Birds involved in bird shows were compared against non‐show birds regarding show paticipation, behaviour, body score condiiton, and feather condition. Additionally, comparisons between on and off show days as well as before and after the show were made to investigate differences in behaviour and condition. Show birds demonstrated a closer to ideal body
Bridget Cooper‐Rogers, Paige Klingner, Sara Hanson, Justine Partoon, Eduardo J. Fernandez   +4 more
wiley   +1 more source

Ozone‐driven degradation of sex pheromone in Plutella xylostella: Implications for reproductive communication and mating success

Insect Science, EarlyView.
In this study, we examined whether realistic ozone concentrations can interfere with sexual communication in the insect pest Plutella xylostella, the diamondback moth. Ozone exposure caused a degradation of pheromone components, leading to significant changes in blend composition and component ratios.
Francesco Sorrentino, Delia M. Pinto‐Zevallos, Oksana Skaldina, James D. Blande   +3 more
wiley   +1 more source

Morphometric wing variations in Fischer’s lovebirds (Agapornis fischeri) related to sex and age at 4–6 months

Jurnal Medik Veteriner
Wing morphometry plays a crucial role in avian functional ecology, influencing flight performance, energy efficiency, and sexual selection. However, quantitative data on wing development in lovebirds (Agapornis fischeri), remain scarce.
Yeni Dhamayanti, Ilyasa Adzani, Muhammet Bayram, Lintang Winantya Firdausy   +3 more
doaj   +1 more source

Sexual size dimorphism and sex determination by morphometric measurements in locally adapted muscovy duck (Cairina moschata) in Nigeria

Acta Agriculturae Slovenica, 2014
Sexual size dimorphism (SSD) is a common phenomenon in most mammalian and poultry species. This study was undertaken to investigate SSD in nondescript locally adapted Muscovy ducks in Nigeria by applying descriptive analysis, sexual dimorphism index (SDI)
Abel Olusegun OGUNTUNJI, Kolawole Luke AYORINDE   +1 more
doaj   +1 more source

Exploring the potential of using male‐killing endosymbionts to induce female‐biased insect populations for enhanced biomass production

Insect Science, EarlyView.
Overview of the mindset and long‐term goals with the approach suggested in this study. We provide a first proof of concept that male‐killing endosymbionts can be used to establish female biased populations with higher production efficiency than populations with a 50/50 sex ratio. This biological tool can have marked positive impact on future commercial
Stine F. Laursen, Perran A. Ross, Nadieh de Jonge, Ary A. Hoffmann, Torsten N. Kristensen   +4 more
wiley   +1 more source