Nesting habitat use by river chubs in a hydrologically variable Appalachian tailwater

2013 ◽  
Vol 23 (2) ◽  
pp. 283-293 ◽  
Author(s):  
Brandon K. Peoples ◽  
Ryan A. McManamay ◽  
Donald J. Orth ◽  
Emmanuel A. Frimpong
Keyword(s):  

Bird Study ◽  
2019 ◽  
Vol 66 (4) ◽  
pp. 452-460
Author(s):  
Kamilia Farhi ◽  
Saâd Hanane ◽  
Farid Mezerdi ◽  
Asma Kahli ◽  
Mohamed Dhaya El Hak Khemis


2010 ◽  
Vol 11 (1) ◽  
pp. 77-90 ◽  
Author(s):  
KM Hart ◽  
DG Zawada ◽  
I Fujisaki ◽  
BH Lidz


2020 ◽  
Author(s):  
Genevieve Pugesek ◽  
Elizabeth E. Crone

AbstractUnderstanding habitat quality is central to understanding the distributions of species on the landscape, as well as to conserving and restoring at-risk species. Although it is well-known that many species require different resources throughout their life cycles, pollinator conservation efforts focus almost exclusively on forage resources.Here, we evaluate nesting habitat for bumble bees by locating nests directly on the landscape. We compared colony density and colony reproductive output for Bombus impatiens, the common eastern bumble bee, across three different land cover types (hay fields, meadows, and forests). We also recorded nest site characteristics, e.g., the position of each nest site, for all Bombus nests located during surveys to tease apart species-specific patterns of habitat use.We found that B. impatiens nests exclusively underground in two natural land cover types, forests and meadows, but not in hay fields. B. impatiens nested at similar densities in both in meadows and forests, but colonies in forests had much higher reproductive output.In contrast to B. impatiens, B. griseocollis frequently nested on the surface of the ground and was almost always found in meadows. B. bimaculatis nests were primarily below ground in meadows. B. perplexis nested below ground in all three habitat types, including hay fields.For some bumble bee species in this system, e.g., B. griseocollis and B. bimaculatis, meadows, the habitat type with abundant forage resources, may be sufficient to maintain them throughout their life cycles. However, B. impatiens might benefit from heterogeneous landscapes with forests and meadows. Further research would be needed to evaluate whether hay fields are high-quality nesting sites for the one species that used them, B. perplexis.Synthesis and applications. In the past, Bombus nesting studies have been perceived as prohibitively labor-intensive. This example shows that it is possible to directly measure nesting habitat use and quality for bumble bee species. Applying these methods to more areas, especially areas where at-risk Bombus spp. are abundant, is an important next step for identifying bumble bee habitat needs throughout their life cycles.



2009 ◽  
Vol 121 (3) ◽  
pp. 493-497
Author(s):  
Christina E. Donehower ◽  
David M. Bird


The Auk ◽  
2004 ◽  
Vol 121 (2) ◽  
pp. 404-414 ◽  
Author(s):  
Emily B. Cohen ◽  
Catherine A. Lindell

Abstract We used radiotelemetry to study behavior of White-throated Robins (Turdus assimilis) during the postfledging dependent period. The study was conducted in a mixed agricultural and forested landscape in southern Costa Rica from March through August of 2001 and 2002. A transmitter was attached to one fledgling per brood (n = 53). Each bird was located daily prior to dispersal. We compared survivorship, habitat use, and movements of fledglings from (1) nests in coffee plantations and (2) nests in cattle pastures. The probability of surviving the first three weeks out of the nest was 0.67 ± 0.07 (SE) for fledglings from nests in all habitats, 0.58 ± 0.10 for fledglings from nests in coffee, and 0.74 ± 0.26 for fledglings from nests in pasture. Fledglings from nests in pasture left their nesting habitat at younger ages than did those from nests in coffee, and most birds from both habitats moved into forest when they left their nesting habitat. Pasture was rarely used during the postfledging period, whereas coffee plantations were used extensively. Fledglings that remained in agricultural habitats (coffee or pasture) were less likely to survive until dispersal than were those that moved into forested areas. Average daily distances from the nest gradually increased until fledglings dispersed away from the natal area, always into forest, and were not different for birds from pasture or coffee. White-throated Robins can nest successfully in agricultural habitats, but use of forest positively influenced survivorship of young during the postfledging dependent period.



Ecosphere ◽  
2021 ◽  
Vol 12 (7) ◽  
Author(s):  
Genevieve Pugesek ◽  
Elizabeth E. Crone


1989 ◽  
Vol 53 (2) ◽  
pp. 324 ◽  
Author(s):  
Jane Choromanski-Norris ◽  
Erik K. Fritzell ◽  
Alan B. Sargeant




2016 ◽  
Vol 544 ◽  
pp. 197-211 ◽  
Author(s):  
A Chin ◽  
MR Heupel ◽  
CA Simpfendorfer ◽  
AJ Tobin


2019 ◽  
Vol 609 ◽  
pp. 239-256 ◽  
Author(s):  
TL Silva ◽  
G Fay ◽  
TA Mooney ◽  
J Robbins ◽  
MT Weinrich ◽  
...  


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