scholarly journals Small mammals in owl pellets from the Arid Chaco of Córdoba province (Argentina), including the first records of Microcavia jayat (Rodentia, Caviidae) for the province

2020 ◽  
Vol 02 (1) ◽  
pp. 001-008
Author(s):  
Enzo Rossi ◽  
Daniela Tamburini ◽  
Ricardo Torres
Keyword(s):  
Small Mammals ◽  
Arid Chaco ◽  
Owl Pellets

An attempt to determine the size of the Common Barn-owl’s (Tyto alba) hunting area based on its prey composition

2021 ◽  
pp. 175815592110660
Author(s):  
Jenő J Purger ◽  
Dávid Szép
Keyword(s):  
Functional Groups ◽  
Small Mammals ◽  
Small Mammal ◽  
Barn Owl ◽  
Tyto Alba ◽  
Mammal Species ◽  
Open Forest ◽  
Prey Composition ◽  
Small Mammal Species ◽  
Owl Pellets

The relative abundance of small mammal species detected from Common Barn-owl pellets reflects the landscape structure and habitat pattern of the owl’s hunting area, but it is also affected by the size of the collected pellet sample and the size of the supposed hunting area. The questions arise: how many pellets should be collected and analyzed as well as how large hunting area should be taken into consideration in order to reach the best correspondence between the owl’s prey composition and the distribution of habitats preferred by small mammals preyed in supposed hunting areas? For this study, we collected 1045 Common Barn-owl pellets in a village in southern Hungary. All detected small mammal species were classified into functional groups (guilds) preferring urban, open, forest and wetland habitats. The proportion of functional groups was compared to the proportion of these habitats around the pellet collection site within circles of one, two, and three km radius. Saturation curves showed that at least 300 pellets or ca. 600 mammalian remains are required for the detection of the 19 small mammal species. The share of small mammals detected in the prey and their functional groups according to their habitat preference showed an increasing consistency with the distribution of real habitats in the potential hunting area of a radius of 3 km around the owl’s breeding or resting place.

scholarly journals Mammalia, Didelphimorphia and Rodentia, central Santa Fe Province, Argentina

Check List ◽  
2010 ◽  
Vol 6 (4) ◽  
pp. 552
Author(s):  
Pablo Teta ◽  
Ulyses F. J. Pardiñas
Keyword(s):  
Small Mammals ◽  
Santa Fe ◽  
Owl Pellets

Three owl pellets samples collected in the localities of Pedro Gómez Cello (= Estación Km. 197; 30°02’14” S, 60°18’56” W), Colonia Silva (= Estación Abipones; 30°26’59” S, 60°25’58” W) and Jacinto L. Arauz (30°44’01” S, 60°58’31” W), Province of Santa Fe, Argentina, were studied. We registered 11 genera of small mammals, including Didelphidae marsupials (1 species), and Caviidae (1), Cricetidae (10), and Muridae (1) rodents. We documented the southernmost record for Pseudoryzomys simplex and the first and second recording localities for Santa Fe of Oligoryzomys nigripes and Graomys chacoensis, respectively.

scholarly journals The brush-tailed gerbille gerbillurus vallinus in the Kalahari Gemsbok National Park

Koedoe ◽  
1977 ◽  
Vol 20 (1) ◽  
Author(s):  
D.A. Schlitter ◽  
I.L. Rautenbach
Keyword(s):  
South Africa ◽  
National Parks ◽  
Small Mammals ◽  
Southern Africa ◽  
National Park ◽  
The Other ◽  
Desert Rodent ◽  
Important Study ◽  
The Republic ◽  
Owl Pellets

As with many of the other national parks in the Republic of South Africa, an effort has been made to determine the species of small mammals in the Kalahari Gemsbok National Park (KGNP) (Rautenbach 1971; Rautenbach and Nel 1975). An additional feature of such species inventories has been the use of owl pellets to determine the occurrence of small mammals in a given area. This has been done in the KGNP as well as other parts of southern Africa (Davis 1958; Nel and Nolte 1965; Nel 1969; Vernon 1972; Coetzee 1972). Such inventories of species of small mammals are critical as the KGNP has become an important study site for desert rodent ecology (Nel 1967; Nel and Rautenbach 1974; Nel 1975; Nel and Rautenbach 1975).

scholarly journals Barn owl pellets collected in coastal savannas yield two additional species of small mammals for French Guiana

Mammalia ◽  
2016 ◽  
Vol 80 (1) ◽  
Author(s):  
Antoine Baglan ◽  
François Catzeflis
Keyword(s):  
Small Mammals ◽  
French Guiana ◽  
Barn Owl ◽  
Small Rodents ◽  
Additional Species ◽  
Forested Landscapes ◽  
Rare Opportunity ◽  
Owl Pellets

AbstractA sample of 251 pellets regurgitated by the barn owl in an old building located in Sinnamary (French Guiana) provided a rare opportunity to get a preliminary inventory of small rodents and opossums living in grassy savannas along the coastal non-forested landscapes of this Guianan region. From a total of 329 specimens of vertebrate remains, we focused on 259 small rodents and opossums that could be positively identified. Two species previously unknown in French Guiana were evidenced: a very small opossum of the genus

Small mammals recovered from owl pellets from Syria (Mammalia: Chiroptera, Rodentia)

2004 ◽  
Vol 33 (1) ◽  
pp. 27-42 ◽  
Author(s):  
Adwan Shehab ◽  
Ahmad Daoud ◽  
Dieter Kock ◽  
Zuhair Amr
Keyword(s):  
Small Mammals ◽  
Owl Pellets

scholarly journals Records of Alberta small mammals through analyses of great horned owl pellets

Blue Jay ◽  
2002 ◽  
Vol 60 (3) ◽  
Author(s):  
D. B. Schowalter ◽  
Lance Engley ◽  
Robin Digby
Keyword(s):  
Small Mammals ◽  
Owl Pellets

Diet of the Barn Owl, Tyto-Alba, in the Tanami Desert, Northern Territory

1989 ◽  
Vol 16 (6) ◽  
pp. 611 ◽  
Author(s):  
JDB Smith ◽  
J Cole
Keyword(s):  
Life History ◽  
Small Mammals ◽  
Small Mammal ◽  
Barn Owl ◽  
Northern Territory ◽  
Tyto Alba ◽  
Prey Biomass ◽  
Large Fluctuations ◽  
Prey Items ◽  
Owl Pellets

The diet of the barn owl was determined by analysing egested pellets collected from the Tanami Desert. These data were also used to examine the distribution of small mammals in the region. Rodents were the dominant prey items, forming more than 74% of prey biomass in all samples. The dominant rodent species were those that undergo large fluctuations in population size. Notomys alexis was the dominant prey item in 15 of the 17 samples. In all samples, one or two species of rodents formed 47-100% of prey biomass. Dasyurids were relatively minor prey items, forming less than 12% of prey biomass in all samples. It is suggested that this is a reflection of their abundance relative to rodents. Bats, birds, lizards and insects combined formed less than 14% of prey biomass in all but one sample (24%). Behavioural and life-history characteristics of prey appear to affect their susceptibility to predation. The analysis of pellets proved to be a useful supplementary technique to conventional methods of surveying small mammals. All species of small mammal that could be expected were identified in owl pellets. Notomys amplus was recorded in pellets but not collected by conventional techniques.

scholarly journals Multi-Taxa Neo-Taphonomic Analysis of Bone Remains from Barn Owl Pellets and Cross-Validation of Observations: A Case Study from Dominica (Lesser Antilles)

Quaternary ◽  
2021 ◽  
Vol 4 (4) ◽  
pp. 38
Author(s):  
Emmanuelle Stoetzel ◽  
Corentin Bochaton ◽  
Salvador Bailon ◽  
David Cochard ◽  
Monica Gala ◽  
...  
Keyword(s):  
Small Mammals ◽  
Cross Validation ◽  
Large Range ◽  
Barn Owl ◽  
History Of ◽  
Taxonomic Groups ◽  
Taphonomic Analysis ◽  
Bone Remains ◽  
Owl Pellets

Paleo- and neo-taphonomic analyses of bone assemblages rarely consider all the occurring taxa in a single study and works concerning birds of prey as accumulators of microvertebrate bone remains mostly focus on small mammals such as rodents and soricomorphs. However, raptors often hunt and consume a large range of taxa, including vertebrates such as small mammals, fishes, amphibians, squamates and birds. Bone remains of all these taxonomic groups are numerous in many paleontological and archaeological records, especially in cave deposits. To better characterize the predators at the origin of fossil and sub-fossil microvertebrate accumulations and the taphonomic history of the deposit, it is thus mandatory to conduct global and multi-taxa taphonomic approaches. The aim of this study is to provide an example of such a global approach through the investigation of a modern bone assemblage from a sample of pellets produced by the Lesser Antillean Barn Owl (Tyto insularis) in the island of Dominica. We propose a new methodology that allows us to compare different taxa (rodents, bats, squamates and birds) and to experiment with a cross-validation process using two observers for each taxonomic group to test the reliability of the taphonomic observations.

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