Results 61 to 70 of about 1,837 (171)

Chromatic Contrast Alone Does Not Predict Predation Risk in the Longhorn Beetle Rosalia alpina

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
Prey colouration can affect predation risk, yet the function of the striking blue‐and‐black pattern of the longhorn beetle Rosalia alpina has not been tested experimentally. By combining reflectance measurements, visual modelling of potential avian predators and field experiments with plasticine models, we show that chromatic contrast alone does not ...
Danilo Russo   +6 more
wiley   +1 more source

Distribution and Communities of Crypsis Aculeata and Heleochloa Schoenoides in Slovakia [PDF]

open access: yesHacquetia, 2008
Distribution and Communities ofCrypsis AculeataandHeleochloa Schoenoidesin SlovakiaThe distribution and communities of two annual grassesCrypsis aculeataandHeleochloa schoenoideswere studied in Slovakia during 2003-2007. Herbarium and field data were used to reconstruct the occurrence of both taxa. A strong decline inC. aculeatalocalities was observed.
Dítě, Daniel   +3 more
openaire   +2 more sources

Chemical Secretion Use Varies Among Species but Lacks a Straightforward Relationship With Other Defenses in Neotropical Opiliones

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
We asked whether variation in the willingness of congeneric species to secrete chemical defenses is associated with high between‐species differences in body size, levels of leg loss (as a proxy for engagement in another defensive strategy), and participation in social roosting with conspecifics and congenerics.
Marilia Freire   +3 more
wiley   +1 more source

Description of the Early Development of Hoplias intermedius (Günther, 1864) (Characiformes: Erythrinidae)

open access: yesJournal of Morphology, Volume 287, Issue 7, July 2026.
This study provides the first description of the early development of Hoplias intermedius (Characiformes: Erythrinidae), from the embryonic to the juvenile stage. The morphological, meristic, and morphometric characterization contributes to understanding the ontogeny and developmental transitions of Neotropical fishes, supporting taxonomy, conservation,
Mateus Babichi Veiga de Souza   +2 more
wiley   +1 more source

Venom in Furs: Facial Masks as Aposematic Signals in a Venomous Mammal

open access: yesToxins, 2019
The function of colouration in animals includes concealment, communication and signaling, such as the use of aposematism as a warning signal. Aposematism is unusual in mammals, and exceptions help us to understand its ecology and evolution.
K. Anne-Isola Nekaris   +6 more
doaj   +1 more source

Matching habitat choice could be brightness‐based instead of hue‐based in green‐brown polymorphic grasshoppers

open access: yesOikos, Volume 2026, Issue 7, July 2026.
Some prey species have evolved background matching, that is they resemble their surrounding environment in terms of colour and/or brightness. When prey populations inhabit patchy environments, they may even have evolved specialised phenotypes: each phenotype matching a specific subset of patches.
Lilian Cabon, Holger Schielzeth
wiley   +1 more source

Insects and Survival: A Review of Primary and Secondary Defense Strategies

open access: yesEntomologia Experimentalis et Applicata, Volume 174, Issue 7, Page 601-624, July 2026.
Based on a review of three decades of literature, insect defense mechanisms are classified into primary (I) and secondary (II) mechanisms of behavioral, morphological, and chemical nature. These mechanisms have been recorded in 22 (I) and 20 (II) orders, respectively.
Lucas Fernandes Silva   +3 more
wiley   +1 more source

Crypsis in Montaigne's Essays

open access: yes, 2012
« A sauts et à gambades » : de cette formule des Essais, la critique a souvent conclu au décousu de leur écriture. Notre travail montre qu'il n'en est rien dans de nombreux chapitres des Essais, en s'appuyant sur l'idée de « cryptique » chez Ramus (Dialectique, 1555) et Canaye (L'Organe, 1589) et sur le concept rhétorique de ductus ou progression du ...
openaire   +2 more sources

The state of knowledge on four families of Syngnathoidei fishes (Teleostei: Syngnathiformes): Aulostomidae, Centriscidae, Fistulariidae and Solenostomidae

open access: yesJournal of Fish Biology, Volume 109, Issue 1, Page 400-449, July 2026.
Abstract Knowledge on the ecology and life‐history traits of coastal marine species is vital to inform their conservation and management, especially as their coastal habitats come under increasing threats. However, such data have never been collated for four of the five families in the suborder Syngnathoidei—the close relatives of the better‐studied ...
Syd J. Ascione   +3 more
wiley   +1 more source

Behaviour of Robsonella fontaniana in response to a potential predator Conducta de Robsonella fontaniana frente a un depredador potencial

open access: yesLatin American Journal of Aquatic Research, 2012
Cephalopods have two main defence strategies: the first consists on reducing the odds of being detected by a predator, while the second focuses on avoiding capture.
Juan Francisco Ruiz   +2 more
doaj  

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