Results 11 to 20 of about 7,651 (208)
Biological invasions are a serious problem in natural ecosystems. Local species that are potential prey of invasive alien predators can be threatened by their inability to recognize invasive predator cues.
Andrzej Antoł, Szymon Sniegula
doaj +1 more source
New species records in Acanthagrion, Nehalennia, and Perilestes (Odonata: Zygoptera) for Colombia
We record for the first time Acanthagrion jessei, Nehalennia minuta, and Perilestes solutus in Colombia, based on males and females taken at the campus Barcelona at the Universidad de Los Llanos, located in the foothills of the Colombian Eastern Andes in
Karen Lineke Alvarez Alvarez +2 more
doaj +1 more source
Climate change and an ever-increasing effect of humans on the great majority of freshwater ecosystems have affected not only individual organisms but also the links between them. In order to effectively protect communities or entire freshwater ecosystems,
Filip HARABIŠ, Jana HRONKOVÁ
doaj +1 more source
Nonadaptive radiation in damselflies [PDF]
AbstractAdaptive radiations have long served as living libraries to study the build‐up of species richness; however, they do not provide good models for radiations that exhibit negligible adaptive disparity. Here, we review work on damselflies to argue that nonadaptive mechanisms were predominant in the radiation of this group and have driven species ...
Maren Wellenreuther +1 more
openaire +2 more sources
Differences in land use modify Odonata assemblages in the Cerrado-Caatinga ecotone
: Aim The present study tested the hypothesis that the composition of the odonate assemblages in environments with greater habitat integrity is significantly different from that of areas with reduced habitat integrity.
Daniel Silas Veras +4 more
doaj +1 more source
A List of the Odonata of the La Rue-pine Hills Ecological Area [PDF]
A survey of the adult odonate fauna of the La Rue-Pine Hills Ecological Area, Union County, Illinois, was conducted during 1983-1985. Thirty six. species were collected including the damselfly Telebasis byersi Westfall; this damselfly is known to occur ...
McPherson, J. E, Vogt, T. E
core +2 more sources
Study design and mark-recapture estimates of dispersal: A case study with the endangered damselfly Coenagrion mercuriale [PDF]
Accurate data on dispersal ability are vital to the understanding of how species are affected by fragmented landscapes. However, three factors may limit the ability of field studies to detect a representative sample of dispersal events: (1) the number of
Hassall, C, Thompson, DJ
core +1 more source
New record of Cyanallagma demoiselle Denck, Ehlert & Pinto, 2023 (Odonata, Zygoptera, Coenagrionidae) in southern Brazil [PDF]
During a field expedition in the municipality of Araquari, state of Santa Catarina, southern Brazil, adults of the damselfly Cyanallagma demoiselle Denck, Ehlert & Pinto 2023 (Odonata, Zygoptera, Coenagrionidae) were collected.
Mateus M. Pires +4 more
doaj +3 more sources
Immune function and parasite resistance in male and polymorphic female Coenagrion puella [PDF]
Background: Colour polymorphisms are widespread and one of the prime examples is the colour polymorphism in female coenagrionid damselflies: one female morph resembles the male colour (andromorph) while one, or more, female morphs are described as ...
Joop, G. +3 more
core +2 more sources
Freshwater Reservoir, Ecological Traps and Source-Sink Dynamics
Odonata are biodiversity indicators that adequately represent many aquatic and semi-aquatic animal species. We recorded over two field seasons a rich lentic community of Odonata (18 species) in a large artificial freshwater reservoir (ca. 55 ha) built 40
Nina Melendez +2 more
doaj +1 more source

