Results 41 to 50 of about 325 (159)

Mapping wild bee diversity and flower use for an effective conservation of the Doñana biodiversity hotspot

Insect Conservation and Diversity, EarlyView.
We compiled the first checklist of wild bees in Doñana Protected Area, documenting 385 species, including three vulnerable and one endangered species listed in the Red List. Bee species exhibit diverse floral preferences, highlighting the need to incorporate plant–pollinator interactions and the role of plants in conservation and management strategies ...
Francisco P. Molina, Nerea Montes‐Pérez, Luis Villagarcía, Ignasi Bartomeus   +3 more
wiley   +1 more source

On deterministic and stochastic models of kleptoparasitism [PDF]

Journal of Interdisciplinary Mathematics, 2009
Kleptoparasitism, the stealing of food items, is a common biological phenomenon that has been studied mostly with the help of deterministic dynamics for infinite populations. The infinite population assumption takes the models far from the biological reality.
M. Crowe, M. Fitzgerald, D. L. Remington, J. Rychtář   +3 more
openaire   +1 more source

Nesting and reproductive habits of the solitary bee Centris analis in trap nests under a tropical climate

Revista Ciência Agronômica, 2019
Pollination is a key factor in global agricultural production, and there is a need to increase the number of bee species that can be bred for pollination in agriculture, such as the oil-collecting solitary bee Centris (Heterocentris) analis (Fabricius ...
Diego de Vasconcelos Lourenço, Luciano Pinheiro da Silva, Hiara Marques Meneses, Breno Magalhães Freitas   +3 more
doaj   +1 more source

Diversity of flies visiting and pollinating flowers of the Southern African genus Riocreuxia (Apocynaceae: Ceropegieae, Anisotominae)

TAXON, Volume 75, Issue 4, August 2026.
Abstract The subtribe Stapeliinae (Apocynaceae: Asclepiadoideae) contains ca. 720 species and, with fly pollination being ubiquitous in the group, appears to have diversified without shifts between major groups of pollinators. In contrast, the sister subtribe Anisotominae, which only has ca.
Annemarie Heiduk, Andrew Whittington, Frank Menzel, Esben Bøggild, Jean‐Paul Haenni, Michael von Tschirnhaus, John Mark Hash, Steven D. Johnson, Adam Shuttleworth   +8 more
wiley   +1 more source

Ecological implications and lessons from high pathogenicity avian influenza H5N1 2.3.4.4b in Antarctica

Ecological Solutions and Evidence, Volume 7, Issue 3, July–September 2026.
HPAI H5N1 was confirmed in 22 South Polar Skuas and one Kelp Gull on Dismal and Horseshoe Islands, Marguerite Bay, Western Antarctic Peninsula in early 2025, with high mortalities consistent with global trends. Rapid antigen tests showed 90% agreement with rRT‐PCR, supporting their utility for early detection in remote environments.
Simon B. Z. Gorta, Victor Neira, Michelle Wille, David Gajardo, Atilla Yılmaz, Özgün Oktar, Burcu Özsoy, Çağan H. Şekercioğlu   +7 more
wiley   +1 more source

The stochastic modelling of kleptoparasitism using a Markov process [PDF]

Journal of Theoretical Biology, 2010
Kleptoparasitism, the stealing of food items from other animals, is a common behaviour observed across a huge variety of species, and has been subjected to significant modelling effort. Most such modelling has been deterministic, effectively assuming an infinite population, although recently some important stochastic models have been developed.
Broom, M., Crowe, M. L., Fitzgerald, M. R., Rychtar, J.   +3 more
openaire   +3 more sources

Cuticular Hydrocarbons‐Revealed Functional Groups and Seasonal Acclimation in Sympatric Fig Wasp Mating Assemblages

Ecology and Evolution, Volume 16, Issue 7, July 2026.
This study demonstrates how climate‐driven seasonal variation shapes the chemical phenotypes of five sympatric fig wasp species. We show that cuticular hydrocarbons (CHCs) are sex‐ and species‐specific signals linked to male mate choice and functional guilds, revealing a chemical basis for niche differentiation within a shared host system. Importantly,
Hua Xie, Shouxian Zhang, Yonghui Zhu, Subo Shao, Pei Yang, Zongbo Li, Yuan Zhang   +6 more
wiley   +1 more source

Parasitic behavior of Amobia distorta (Diptera: Miltogramminae) and defensive behavior of its hosts, Anterhynchium spp. (Hymenoptera: Vespidae: Eumeninae)

Entomological Science, Volume 29, Issue 2, June 2026.
The parasitic behaviour of Amobia distorta and the defensive behaviour of its hosts, Anterhynchium flavomarginatum (native species) and A. gibbifrons (probably non‐native), were observed. Abstract Two Anterhynchium species, A. flavomarginatum and A. gibbifrons, are solitary tube‐renting eumenine wasps that occur sympatrically in Japan.
Hikari Miyazaki, Fuki Saito‐Morooka
wiley   +1 more source

Integrative taxonomic revision of the Nearctic Perilampus hyalinus species complex (Hymenoptera, Chalcidoidea, Perilampidae) resolves 100 years of confusion about the host associations of P. hyalinus Say [PDF]

Journal of Hymenoptera Research
The enigmatic Nearctic parasitoid Perilampus hyalinus Say (Hymenoptera: Chalcidoidea: Perilampidae) has long been suspected as a species complex with a wide range of host associations and differing modes of parasitism. In this study we clarify the status
Jeong Jae Yoo, D. Christopher Darling
doaj   +3 more sources

Severe Population Decline of Great Skua Stercorarius skua Following a HPAI Outbreak Reflected in Migration Counts

Marine Ecology, Volume 47, Issue 3, May/June 2026.
ABSTRACT The H5N1 avian influenza (HPAI) outbreak that began in 2021 has led to widespread mortality in birds and mammals globally, significantly impacting seabird populations. This study examines the changes in the number of migratory great skuas (Stercorarius skua), a species particularly vulnerable due to its kleptoparasitic behavior and reliance on
Rafael Benjumea, Antonio Sandoval, María Del Mar Delgado   +2 more
wiley   +1 more source