Bats relocate maternity colony after the natural loss of roost trees

2019 ◽  
Vol 83 (8) ◽  
pp. 1753-1761 ◽  
Author(s):  
Kristin J. Bondo ◽  
Craig K. R. Willis ◽  
Jackie D. Metheny ◽  
R. Julia Kilgour ◽  
Erin H. Gillam ◽  
...  
Keyword(s):  
Roost Trees

Growing hickories (Carya spp.) for roost trees: A Method to Support Conservation of Declining Bat Populations

2014 ◽  
Vol 15 (1) ◽  
pp. 66-74
Author(s):  
T. Luna ◽  
D. L. Lindner ◽  
R. Kasten Dumroese
Keyword(s):  
Roost Trees

Roost-site selection and roosting ecology of forest-dwelling bats in southern British Columbia

1996 ◽  
Vol 74 (10) ◽  
pp. 1797-1805 ◽  
Author(s):  
Maarten J. Vonhof ◽  
Robert M. R. Barclay
Keyword(s):  
British Columbia ◽  
Ponderosa Pine ◽  
Tree Height ◽  
Canopy Closure ◽  
Ambient Conditions ◽  
White Pine ◽  
Roosting Ecology ◽  
Site Preferences ◽  
Roost Trees ◽  
Lasionycteris Noctivagans

We used radiotelemetry to examine the roost-site preferences of four species of tree-roosting bats (Eptesicus fuscus, Lasionycteris noctivagans, Myotis evotis, and M. volans) in southern British Columbia, Canada, by radio-tracking bats to their day roosts. We found a total of 21 roost trees: 14 roosts were beneath loose bark, 5 were in cavities excavated by woodpeckers, and 2 were in natural cavities. Entrance height increased with tree height, but roost entrances tended to be situated below the level of the canopy. Of the 22 tree and site variables examined, only 3 significantly discriminated between roost trees and available trees: tree height, distance to the nearest available tree, and percent canopy closure. Bats preferred tall trees associated with low percent canopy closure and a short distance to the nearest available tree. Bats roosted in western white pine, and to a lesser extent ponderosa pine and western larch, in intermediate stages of decay more often than would be expected at random. Bats switched roosts frequently. The distance between subsequent roost trees was short, suggesting a degree of fidelity to a particular group of trees or area of forest. The number of days of rain during the roosting period significantly influenced the number of days spent in a particular roost, and thus ambient conditions may restrict the frequency with which bats can switch roosts.

scholarly journals Forest Succession and Maternity Day Roost Selection byMyotis septentrionalisin a Mesophytic Hardwood Forest

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Alexander Silvis ◽  
W. Mark Ford ◽  
Eric R. Britzke ◽  
Nathan R. Beane ◽  
Joshua B. Johnson
Keyword(s):  
Forest Succession ◽  
Theoretic Approach ◽  
Individual Tree ◽  
Management Intervention ◽  
Roost Selection ◽  
Resource Managers ◽  
Retrospective View ◽  
Tree Metrics ◽  
Information Theoretic Approach ◽  
Roost Trees

Conservation of summer maternity roosts is considered critical for bat management in North America, yet many aspects of the physical and environmental factors that drive roost selection are poorly understood. We tracked 58 female northern bats (Myotis septentrionalis) to 105 roost trees of 21 species on the Fort Knox military reservation in north-central Kentucky during the summer of 2011. Sassafras (Sassafras albidum) was used as a day roost more than expected based on forest stand-level availability and accounted for 48.6% of all observed day roosts. Using logistic regression and an information theoretic approach, we were unable to reliably differentiate between sassafras and other roost species or between day roosts used during different maternity periods using models representative of individual tree metrics, site metrics, topographic location, or combinations of these factors. For northern bats, we suggest that day-roost selection is not a function of differences between individual tree speciesper se, but rather of forest successional patterns, stand and tree structure. Present successional trajectories may not provide this particular selected structure again without management intervention, thereby suggesting that resource managers take a relatively long retrospective view to manage current and future forest conditions for bats.

Roost Trees Used by Pileated Woodpeckers in Northeastern Oregon

1992 ◽  
Vol 56 (4) ◽  
pp. 786 ◽  
Author(s):  
Evelyn L. Bull ◽  
Richard S. Holthausen ◽  
Mark G. Henjum
Keyword(s):  
Pileated Woodpeckers ◽  
Roost Trees

scholarly journals Conventional wisdom on roosting behaviour of Australian flying foxes -- a critical review, and evaluation using new data

2021 ◽  
Author(s):  
Tamika Lunn ◽  
Peggy Eby ◽  
Remy Brooks ◽  
Hamish McCallum ◽  
Raina Plowright ◽  
...  
Keyword(s):  
Management Practices ◽  
Habitat Modification ◽  
Ecological Knowledge ◽  
Evidence Based ◽  
Fine Scale ◽  
Flying Foxes ◽  
Roosting Ecology ◽  
Roost Trees ◽  
The Impact ◽  
Flying Fox

1. Fruit bats (Family: Pteropodidae) are animals of great ecological and economic importance, yet their populations are threatened by ongoing habitat loss and human persecution. A lack of ecological knowledge for the vast majority of Pteropodid bat species presents additional challenges for their conservation and management. 2. In Australia, populations of flying-fox species (Genus: Pteropus) are declining and management approaches are highly contentious. Australian flying-fox roosts are exposed to management regimes involving habitat modification, either through human-wildlife conflict management policies, or vegetation restoration programs. Details on the fine-scale roosting ecology of flying-foxes are not sufficiently known to provide evidence-based guidance for these regimes and the impact on flying-foxes of these habitat modifications is poorly understood. 3. We seek to identify and test commonly held understandings about the roosting ecology of Australian flying-foxes to inform practical recommendations and guide and refine management practices at flying-fox roosts. 4. We identify 31 statements relevant to understanding of flying-fox roosting structure, and synthesise these in the context of existing literature. We then contribute contemporary data on the fine-scale roosting structure of flying-fox species in south-eastern Queensland and north-eastern New South Wales, presenting a 13-month dataset from 2,522 spatially referenced roost trees across eight sites. 5. We show evidence of sympatry and indirect competition between species, including spatial segregation of black and grey-headed flying-foxes within roosts and seasonal displacement of both species by little red flying-foxes. We demonstrate roost-specific annual trends in occupancy and abundance and provide updated demographic information including the spatial and temporal distributions of males and females within roosts. 6. Insights from our systematic and quantitative study will be important to guide evidence-based recommendations on restoration and management and will be crucial for the implementation of priority recovery actions for the preservation of these species into the future.

scholarly journals Roosting selection by red and blue Lory (Eos histrio Muller, 1776) in Karakelang Island North Sulawesi

2017 ◽  
Vol 6 (1) ◽  
pp. 61
Author(s):  
Diah Irawati Dwi Arini ◽  
Satyawan Pudyatmoko ◽  
Erny Poedjirahajoe
Keyword(s):  
Logistic Regression ◽  
Binary Logistic Regression ◽  
Chi Square ◽  
Canopy Density ◽  
North Sulawesi ◽  
Chi Square Test ◽  
Parrot Species ◽  
Roost Trees ◽  
Selection Of ◽  
Analyze Data

The Red and blue lory is an endemic parrot species from Talaud Islands, North Sulawesi. The use of existing resources is suspected that occurs of selection including the roosting trees. The research aims to identifying the characteristics of Red and Blue Lory roost tree and determining variables in its selection. We measured 14 variables to identify the characteristics and selection of roost tree. Mann-Whitney test, T-test, Chi-sqare test and Binary Logistic Regression were employed to analyze data. We detected 11 roost trees in study field, there are Gehe (Pometia coriacea Radkl) nine individual, Binsar (Ficus variegata) and Lawean (Sterculia sp) one individual. The Chi-square test identified five variables which related to roost tree selection, i.e; branch-free bole length, canopy diameter, canopy density and the number of trees around the roost tree on diameter 20 - 40 cm and > 41 cm. The Logistic regression analysis detected three variables that gave the most influence on roost tree selection, but branch-free bole length gave the most influence on roost tree selection.

Bats Fertilize Roost Trees

Biotropica ◽  
2015 ◽  
Vol 47 (4) ◽  
pp. 403-406 ◽  
Author(s):  
Christian C. Voigt ◽  
Ivailo Borissov ◽  
Detlev H. Kelm
Keyword(s):  
Roost Trees

Wedgie Gold: Using metal detectors to recover PIT tags under areas used by wedge-tailed eagles and barn owls

2018 ◽  
Vol 40 (2) ◽  
pp. 304
Author(s):  
M. Blythman ◽  
C. Sims ◽  
G. Eliot
Keyword(s):  
Threatened Species ◽  
Barn Owl ◽  
Pit Tag ◽  
Metal Detector ◽  
Passive Integrated Transponder ◽  
Pit Tags ◽  
Barn Owls ◽  
Metal Detectors ◽  
Roost Trees

A metal detector was used to recover passive integrated transponder (PIT) tags from below wedge-tailed eagle and barn owl nests and roost trees. The effectiveness of four different metal detectors to locate PIT tags and Australian Bird and Bat Banding Scheme (ABBBS) bands were compared. Twenty PIT tags from 14 golden bandicoots, five burrowing bettongs and one rufous hare-wallaby were recovered from wedge-tailed eagle sites. One unreadable PIT tag was recovered from a barn owl site. This technique has potential for use in determining the survivorship of translocated threatened species.

Description of Spring Roost Trees Used by Female Indiana Bats (Myotis sodalis) in the Lake Champlain Valley of Vermont and New York

2006 ◽  
Vol 155 (1) ◽  
pp. 181-187 ◽  
Author(s):  
ERIC R. BRITZKE ◽  
ALAN C. HICKS ◽  
SUSANNA L. VON OETTINGEN ◽  
SCOTT R. DARLING
Keyword(s):  
New York ◽  
Myotis Sodalis ◽  
Lake Champlain ◽  
Roost Trees
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