Long-term changes in abundance of bats as revealed by their frequency in tawny owls’ diet
Abstract: Percentage of bats in tawny owls’ diet was compared in three periods: I — before 1976, II — 1976–1992, III — 1993–2009, by using the published and unpublished material from Poland (only samples over 100 vertebrate prey items). This species of owl showed an opportunistic predation on bats and took them more frequently in periods of higher abundance. Before the mass use of toxic pesticides in Poland, in the period I bats constituted more than 2% of vertebrates in four out of five diet samples (median 2.4%). The lowest bat abundance occurred in Poland in the 1980s and resulted in the lowest percentage of bats taken by owls in the period II (n = 11, median 0.2%). Due to the recovery of bat populations in the period III, the percentage of bats in tawny owls’ diet increased (n = 23, median 0.7%). In large samples (over 200 vertebrate items, n = 21) collected in central and north-eastern Poland the percentage of bats increased from 1980 to 2009 (the estimated average value at the end of that period slightly exceeded 1%). Samples collected at the same five sites in 1975–1992 and again in 2000–2009, confirmed the increasing trend in percentage of bats captured by tawny owls noted in last years.
- Standort
-
Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
-
Online-Ressource
- Sprache
-
Englisch
- Erschienen in
-
Long-term changes in abundance of bats as revealed by their frequency in tawny owls’ diet ; volume:65 ; number:4 ; year:2010 ; pages:749-753 ; extent:5
Biologia ; 65, Heft 4 (2010), 749-753 (gesamt 5)
- Urheber
-
Lesiński, Grzegorz
- DOI
-
10.2478/s11756-010-0074-y
- URN
-
urn:nbn:de:101:1-2409221651468.129444415695
- Rechteinformation
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
-
15.08.2025, 07:29 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Lesiński, Grzegorz
Ähnliche Objekte (12)
Changes in abundance of hibernating bats in central Slovakia (1992–2009)
Bats-inspired frequency hopping for mitigation of interference between automotive radars
Effects of the forest fragmentation on the diversity and abundance patterns of central Amazonian bats
Nachtmaschinen / Bats
Winter diet of bats in working forests of the southeastern U.S. Coastal Plain
Fruit bats adjust their foraging strategies to urban environments to diversify their diet
Fruit bats adjust their foraging strategies to urban environments to diversify their diet
Feasting, not fasting: winter diets of cave hibernating bats in the United States
Revealed Factor Abundance and the Factor Content of Trade in Headquarter Services
Testing bat abundance and diversity predictions by PREBAT, a connectivity-based habitat suitability model for insectivorous bats
Molecular adaptations underlying high-frequency hearing in the brain of CF bats species
Tracking Diet Preferences of Bats Using Stable Isotope and Fatty Acid Signatures of Faeces
Changes in abundance of hibernating bats in central Slovakia (1992–2009)
Bats-inspired frequency hopping for mitigation of interference between automotive radars
Effects of the forest fragmentation on the diversity and abundance patterns of central Amazonian bats
Nachtmaschinen / Bats
Winter diet of bats in working forests of the southeastern U.S. Coastal Plain
Fruit bats adjust their foraging strategies to urban environments to diversify their diet
Fruit bats adjust their foraging strategies to urban environments to diversify their diet
Feasting, not fasting: winter diets of cave hibernating bats in the United States
Revealed Factor Abundance and the Factor Content of Trade in Headquarter Services
Testing bat abundance and diversity predictions by PREBAT, a connectivity-based habitat suitability model for insectivorous bats
Molecular adaptations underlying high-frequency hearing in the brain of CF bats species
Tracking Diet Preferences of Bats Using Stable Isotope and Fatty Acid Signatures of Faeces
Changes in abundance of hibernating bats in central Slovakia (1992–2009)
Bats-inspired frequency hopping for mitigation of interference between automotive radars
Effects of the forest fragmentation on the diversity and abundance patterns of central Amazonian bats
Nachtmaschinen / Bats
Winter diet of bats in working forests of the southeastern U.S. Coastal Plain
Fruit bats adjust their foraging strategies to urban environments to diversify their diet
Fruit bats adjust their foraging strategies to urban environments to diversify their diet
Feasting, not fasting: winter diets of cave hibernating bats in the United States
Revealed Factor Abundance and the Factor Content of Trade in Headquarter Services
Testing bat abundance and diversity predictions by PREBAT, a connectivity-based habitat suitability model for insectivorous bats
Molecular adaptations underlying high-frequency hearing in the brain of CF bats species