Food habits and caching behavior of urban grey squirrels

1980 ◽  
Vol 58 (5) ◽  
pp. 701-710 ◽  
Author(s):  
D. C. Thompson ◽  
P. S. Thompson

Grey squirrels are basically conservative in their choice of diet, selecting items closely resembling those used in habitats containing native vegetation. There is a strong seasonality in the use of various foods. The period of late spring appears to be the most critical for food supply; however, food did not appear to be a proximate limiting factor for this population. Food-caching and recovery behaviors show a strong seasonality. Food caching starts with the maturation of husked nuts and terminates with the onset of winter. Food recovery begins with cessation of food caching and terminates with the appearance of spring foods. Large numbers of nuts are cached and a large proportion (84.6%) of these are recovered. Cached food contributes significantly to the winter diet. The caching of food by an individual squirrel is beneficial to the general population and possibly to tree reproduction.

The Murrelet ◽  
1984 ◽  
Vol 65 (1) ◽  
pp. 27 ◽  
Author(s):  
Jeffrey S. Marks ◽  
D. Paul Hendricks ◽  
Victoria S. Marks

1939 ◽  
Vol 3 (2) ◽  
pp. 99 ◽  
Author(s):  
W. J. Hamilton ◽  
Russell P. Hunter
Keyword(s):  

1943 ◽  
Vol 7 (4) ◽  
pp. 411 ◽  
Author(s):  
John A. Sealander
Keyword(s):  

The Murrelet ◽  
1984 ◽  
Vol 65 (2) ◽  
pp. 48
Author(s):  
Daniel M. Taylor
Keyword(s):  

2017 ◽  
Vol 9 (9) ◽  
pp. 10656
Author(s):  
Khursid A. Khan ◽  
Jamal A. Khan ◽  
Narendra Mohan

Golden Jackal (Canis aurius indicus) survives in a wide range of environment. Its foraging adaptation varies according to quality and abundance of food sources. The food habits also fluctuate according to season and habitat. This study investigated the diet composition of Golden Jackal using scat analysis method collected between November 2012 and April 2013 from Patna Bird Sanctuary (PBS), Uttar Pradesh, India. A total of 83 scats of Golden Jackal were collected and analysed. Sixteen food items were identified in Golden Jackal scats. Birds contributed maximum (ca. 38.92%) in Golden Jackal diet followed by rodents (ca. 12.14%), insects (ca. 8.92%), reptile (ca. 8.57%), vegetative matter (ca. 13.56%), rufous-tailed hare (ca. 6.07%), cattle (ca. 2.5%), squirrel (ca.1.42%), nilgai (ca.1.07%) and common palm civet (ca. 0.71 %). However (ca. 6.07 %) of prey items could not identified in Golden Jackal scats. Out of (ca. 38.92%) in bird’s contribution egret alone contributed about (ca.20.35%) in Golden Jackal diet followed by gargeny (ca. 8.93%), greater caucal (ca. 5.71%), babbler (ca.1.07%) and (ca. 2.85%) remains of birds were could not identified as per species level. This study is conducted to find out food habits of Golden Jackal and its impact on bird community structure.     


Author(s):  
Prasert Tongnunui ◽  
Prasert Tongnunui ◽  
Woraporn Tarangkoon ◽  
Woraporn Tarangkoon ◽  
Parichat Hukiew ◽  
...  

Natural disasters may adversely affect coastal resources potentially leading to coastal habitat restorations that incorporate stakeholders and the general public. Appropriate methodologies for habitat restoration are developed to ensure the outcomes of this project. Currently, seagrass bed restoration by means of asexual and sexual propagation techniques have been used worldwide. However, the experience of seagrass (Enhalus acoroides) habitat restoration in Trang Province noted that to accomplish this project’s strategies involved the application of restoration techniques along with public and stakeholder participation. The application of asexual propagation, specifically the collection of single shoots from donor seagrasses and subsequent transplantation, is a convenient tool. However, from this project results, this process still has conceptual problems as from the large numbers of single shoots collected from donor seagrasses, the survival rate was relatively low. Furthermore, this process was complicated by conflicting interests between local communities near to the donor site and the project’s organizers. In order to reduce said conflicts, other techniques to balance stakeholder interests were instigated by this project, namely the development of both asexual and sexual propagation techniques. This project initiated a sexual propagation technique by the collection of wild seeds of Enhalus acoroides that were subsequently grown in the laboratory before natural habitat transplantation. This project results showed that seeds can be grown rapidly and can be cultured in large numbers. However, this development technique has a limit on rearing time because seedlings were found to be in decline after the third month of the experiment. These problems were compounded by a limiting factor that pushed the project’s organizers to decide to transplant seagrasses from the laboratory to the wild whether a time was seasonally suitable or unsuitable, the planting activity still done forward. This matter may have enhanced the low survival rate situation after seagrass transplantation to the wild. If there is a need to recover a seagrass bed, the above culture and transplantation methodologies should be used in conjunction with repeated periodic plantings until natural ecological function has been restored. In conclusion, further research should be instigated to improve the cultivation method for producing ready to plant seedlings and to improve methods of project operation.


2002 ◽  
Vol 2 (1) ◽  
pp. 271-280 ◽  
Author(s):  
H.-C. Flemming ◽  
S.L. Percival ◽  
J.T. Walker

Biofilms are ubiquitous in drinking water systems, either in the form of thin and patchy colonies or as surface-covering multiple layers. In biofilters they are used for the elimination of biologically degradable substances. However, they occur in other sites, e.g., on the walls of containers and pipes, on sediment and on suspended particles. They can rise problems by contamination of the water phase by detaching biofilm organisms. Biofilms provide a possible habitat for hygienically relevant microbes in which they can persist and even multiply. Here they are protected against disinfectants, in particular if located in corrosion products, sediments or ingested by protozoa which feed on biofilm cells. Biofilms are related to the occurrence of “black water” and malodours. They are involved in the corrosion of metals, mineral materials and synthetic polymers. The limiting factor for biofilm growth is usually the availability of nutrients, mainly provided either by biodegradable substances leaching from materials or from by the water phase. The extent of biofilm growth and of the occurrence of hygienically relevant organisms is still unknown and to be investigated. However, latest research indicates that such organisms do not multiply in large numbers in drinking water biofilms; it is possible that drinking water biofilms can inhibit the propagation of invading pathogens.


1985 ◽  
Vol 49 (1) ◽  
pp. 156
Author(s):  
Kimberly A. Keating ◽  
Lynn R. Irby ◽  
Wayne F. Kasworm
Keyword(s):  

1981 ◽  
Vol 45 (2) ◽  
pp. 548 ◽  
Author(s):  
Mark E. Tilton ◽  
E. Earl Willard
Keyword(s):  

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