Results 31 to 40 of about 1,156 (138)

Phenotypic plasticity in sperm traits in scorpionflies (Mecoptera: Panorpidae): Consequences of larval history and seasonality on sperm length and sperm transfer

open access: yesEuropean Journal of Entomology, 2009
We examined effects of seasonality, larval food availability and larval rearing density on sperm length, sperm transfer rates and body size in the bivoltine scorpionfly Panorpa vulgaris.
Andreas VERMEULEN   +3 more
doaj   +1 more source

No More Sneaking Around: The Changing Terminology of Orangutan Male Reproductive Strategies

open access: yesAmerican Journal of Biological Anthropology, Volume 190, Issue 3, July 2026.
ABSTRACT Objectives Orangutans exhibit male bimaturism, characterized by pronounced variation among adult males. Early research framed this variation as age‐based morphs with two alternative reproductive tactics (ARTs), contrasting “sneak and rape” subadults with “consort and combat” adults.
Alexandra E. Kralick
wiley   +1 more source

Fleas are parasitic scorpionflies

open access: yes, 2020
Fleas (Siphonaptera) are medically important blood-feeding insects responsible for spreading pathogens such as plague, murine typhus, and myxomatosis. The peculiar morphology of fleas resulting from their specialised ectoparasitic lifestyle has meant that the phylogenetic position of this diverse and medically important group has remained one of the ...
Tihelka, Erik   +5 more
openaire   +4 more sources

Ecosystem services provided by spiders

open access: yesBiological Reviews, Volume 100, Issue 6, Page 2217-2236, December 2025.
ABSTRACT Spiders, ubiquitous and abundant predators in terrestrial ecosystems, often are the subjects of an unjust negative perception. However, these remarkable creatures stand as unsung heroes within our ecosystems, contributing a multitude of ecosystem services critical to human well‐being.
Pedro Cardoso   +13 more
wiley   +1 more source

Who Is Likely to Cheat? Linking Personality to Worthless Gift Production in a Spider

open access: yesEthology, Volume 131, Issue 12, Page 313-320, December 2025.
Male spiders of Pisaura mirabilis use two strategies to court females: offering either nutritious gifts or worthless ones. Our study shows that aggressive and larger males are more likely to use worthless items, highlighting how individual differences in behaviour and body size influence these tactics. These findings reveal how personality and physical
Narmin I. Beydizada   +3 more
wiley   +1 more source

The earliest case of extreme sexual display with exaggerated male organs by two Middle Jurassic mecopterans.

open access: yesPLoS ONE, 2013
BackgroundMany extant male animals exhibit exaggerated body parts for display, defense or offence in sexual selection, such as male birds of paradise showing off colorful and elegant feathers and male moose and reindeers bearing large structured antlers.
Qi Wang, Chungkun Shih, Dong Ren
doaj   +1 more source

‘Nature of the year’ in Germany: An effective policy to raise public awareness?

open access: yesPeople and Nature, Volume 7, Issue 7, Page 1593-1604, July 2025.
Abstract Building public awareness for conservation can be done in different ways. However, the impact of the conservation marketing techniques is not well understood. The ‘nature of the year’ award is a public awareness building strategy for conservation in Germany, which aims to draw attention to annually selected species and their habitats. In order
Hilke Hollens‐Kuhr   +2 more
wiley   +1 more source

Butterflies, bumblebees and hoverflies are equally effective pollinators of Knautia arvensis (Caprifoliaceae), a generalist plant species with compound inflorescences

open access: yesJournal of Applied Entomology, Volume 149, Issue 5, Page 685-696, June 2025.
Abstract Plant‐pollinator interactions exist along a continuum from complete specialisation to highly generalised, that may vary in time and space. A long‐held assumption is that large bees are usually the most effective pollinators of generalist plants.
Jeff Ollerton   +5 more
wiley   +1 more source

A life-history perspective on strategic mating effort in male scorpionflies [PDF]

open access: yesBehavioral Ecology, 2002
In species with high male mating effort, there is a trade-off between mating effort spent in a current mating and resources left for future matings. Consequently, to maximize their reproductive success, males have to invest strategically, saving resources in matings with low reproductive gain for future, more valuable matings.
Engqvist, Leif, Sauer, Klaus Peter
openaire   +2 more sources

What Are the Phylogenetic Limits to Pollinator Diversity?

open access: yesJournal of Applied Entomology, Volume 149, Issue 5, Page 697-703, June 2025.
ABSTRACT Although huge progress has been made over the past 200 years in identifying the diversity of pollinators of angiosperms and other plants, new discoveries continue to be made each year, especially in tropical areas and in the fossil record. In this perspective article I address the following questions: Just how diverse are the pollinators and ...
Jeff Ollerton
wiley   +1 more source

Home - About - Disclaimer - Privacy