A new article in Animal Behaviour about the greater diversity of personalities among urban than rural shrews

Leszek Rychlik and co-authors (mainly from the University of Lisbon, Portugal) tested average differences in behaviour as well as the inter-individual variation in behaviour in rural and urban populations of shrews belonging to two species differing in life history and time since synurbanization: the fast-paced Sorex araneus and the slow-paced Crocidura russula. As predicted, [...]

2022-05-27T19:12:25+02:00May 27th, 2022|Publications|

Discovery of basking in shrews – publication in Journal of Thermal Biology

Leszek Rychlik and co-authors from Portugal assessed the use of an external heat source (basking) in the thermoregulatory strategies of three shrew species. Shrews were tested in a terrarium where they had access to a heat rock which could be turned off (cold) or on (heated). In accordance with authors' predictions, Crocidura russula (the [...]

2022-05-23T10:22:05+02:00May 23rd, 2022|Publications|

Negative frequency-dependent selection on MHC uncovered by an emergent parasite

High polymorphism of major histocompatibility complex (MHC) genes that encode proteins crucial for adaptive immunity of vertebrates have been long hypothesized to be maintained by negative frequency-dependent selection resulting from adaptation of parasites to common MHC types, but supporting evidence is scarce. In our new paper in Molecular Ecology (Migalska et al. 2022, http://doi.org/10.1111/mec.16486) we find [...]

2022-05-23T09:53:29+02:00May 23rd, 2022|Publications|

New publication on the role of associative learning in originating sexual preferences

In the article published in Proceedings of the Royal Society B, https://doi.org/10.1098/rspb.2022.0212 dr Magdalena Herdegen-Radwan (Department of Behavioural Ecology) presents empirical suport for the role of associative learning in originating sexual preferences. Sexual preferences of guppy females changed following food-conditoning on different colours, supporting the emergence of an association between the colour of the stimulus [...]

2022-04-26T23:28:26+02:00April 26th, 2022|Publications|

New publication: How environmental heterogeneity influences niche breadth

In this article, we explain how the degree of environmental heterogeneity may influence pests’ niche breadth evolution, which may in turn affect the ability of pests to persist in agricultural systems. The study was supported by the National Science Centre, Poland, research projects no. 2016/21/B/NZ8/00786 and 2017/27/N/NZ8/00305. Skoracka A., Laska A., Radwan J., Konczal. M., Lewandowski [...]

2022-03-13T20:51:45+01:00March 13th, 2022|Publications|

A next paper on Crocidura shrews in Behavioral Ecology and Sociobiology

This time Leszek Rychlik and co-authors from Portugal (University of Lisbon) published in Behavioral Ecology and Sociobiology the paper on social thermoregulation in Crocidura russula. They analyzed the behavior and physiology of shrew groups from winter (acclimated to 14 °C) and summer (acclimated to 24 °C). All group mates were frequently found huddling in the [...]

2021-12-23T10:45:39+01:00December 19th, 2021|Publications|

Article in Proceedings of the Royal Society B describes source-sink dynamics as a strategy to cope with temporally fluctuating environment

The research conducted by researchers and students from Population Ecology Lab in cooperation with researchers from Warsaw University of Life Sciences – SGGW, University of Lisbon, and Western Illinois University has been published in Proceedings of the Royal Society B. By combining laboratory experiments and field surveys, they demonstrated the importance of sink habitats for [...]

2021-11-02T22:05:27+01:00November 1st, 2021|Publications|

Article in the International Journal of Molecular Science on whether brain size influences the level of neurogenesis in adult shrews

Leszek Rychlik (Department of Systematic Zoology) and co-authors (mainly from the Nencki Institute of Experimental Biology PAS in Warsaw) published, in the International Journal of Molecular Science, the results of a study in which they checked whether the numbers of new generated cells in shrew brains (namely in the subventricular zone of the lateral ventricle, [...]

2021-10-18T22:18:46+02:00October 18th, 2021|Publications|

Publication in Toxins on the evolution and ecological functions of venomousness in insectivorous mammals

Leszek Rychlik (Department of Systematic Zoology) and Krzysztof Kowalski (currently the Nicolaus Copernicus University in Toruń) published a review in the journal Toxins (Q1 in Zoology) on the evolution and ecological functions of venomousness in insectivorous mammals (order Eulipotyphla), to which most of the currently known venomous mammals belong. The authors provide an overview of [...]

2021-12-22T06:34:25+01:00October 11th, 2021|Publications|

The publication in Nature shows the limited potential for plant migration to the north

The research conducted by a team of 18 researchers from 13 European institutions, including Dr. Przemysław Kurek from our Institute, aimed to identify the network of relationships between a group of birds eating fleshy-fruits and plants in the context of transferring their seeds between different types of environments. The research was carried out on a [...]

2021-12-22T06:34:25+01:00July 3rd, 2021|Publications|
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