Dietary analyses are important components of ecological studies. However, some methods of collecting organisms may expose them to exceptionally high densities of prey items, leading to inaccurate dietary assessments. These methods include the use of baited traps. We hypothesised that such a "trap effect" occurred during work on the diet of the rock lobster Jasus lalandii, because baited traps a...

We observed the behavior and ecology of Chaetodon capistratus infected and uninfected with the ectoparasitic isopod Anilocra chaetodontis to assess whether there may be parasite induced alterations in host biology, host defenses against infection, and/or pathology related to infection. We also examined habitat related differences in infection rates. Infected fish had higher rates of interaction...

The genus Caecidotea is represented by 2 species in Massachusetts, C. communis and C. r. racovitzai. Caecidotea r. racovitzai is restricted to western portions of the state while C. communis occurs throughout the state. Collections of Caecidotea sp. are demonstratively unispecific in drainages where both species are found. Subsequent collecting in 2 localities that formerly produced both specie...

In this paper, three separate instances of an association between an ectoparasite, Cyclocotyla bellones (Otto, 1821) (Monogenea: Diclidophoridae) and ectoparasitic isopods have been reported for the first time from the Aegean Sea coasts of Turkey. The isopods were all of the family Cymothoidae: Ceratothoa oestroides, C. parallela, Emetha audouini.

Abstract: Studying feeding habits is crucial to understand complex predator-prey interactions. Even though anurans play a fundamental role in the control of arthropods populations, diet several Neotropical species poorly known. We describe frequency and occurrence prey items their dry mass stomach contents Robber Frog Pristimantis paulodutrai north east state Bahia, Brazil. Based on 30 individu...

The objective of this study was to evaluate the diversity and abundance edaphic fauna organisms in single intercropped systems sweet potato (Ipomoea batatas) ecologically-based popcorn (Zea mays) Red Oxisol, Northwest region state Rio Grande do Sul, Brazil. Four cultivars were used with popcorn: BRS Amélia, Rubissol, Cuia Crioula. soil assessment carried out using PROVID-type traps. Richness, d...

We evaluated individual behavioural patterns of isopods expressed as tonic immobility following some intrusive treatments. Common rough woodlice, Porcellioscaber, were kept individually in plastic boxes and tested for tonic immobility repeatedly. Reactivity, sensitivity (number of stimuli needed to respond), and endurance of tonic immobility (TI) according three types of treatments (touch, sque...