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- Monogamy (3)
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Articles 1 - 18 of 18
Full-Text Articles in Life Sciences
Dispersal In A Monogamous Rodent, Peromyscus Californicus, David Ribble
Dispersal In A Monogamous Rodent, Peromyscus Californicus, David Ribble
David O Ribble
In view of theoretical interest in the relationships between mating systems and dispersal patterns and the paucity of empirical data on dispersal in monogamous mammals, I studied natal dispersal in the monogamous rodent Peromyscus californicus. Genealogical relationships were determined using fluorescent pigment transfer and DNA fingerprinting, and dispersal distances were determined using dispersal fences and intensive trapping. Minimum dispersal distances were greater for females than for males. Philopatric males (those settling within one home-range diameter of their birth site) tended to be from smaller litters than non-philopatric males. Minimum dispersal distances of males were positively associated with natal litter size …
Social Organization Of Neotoma Micropus, The Southern Plains Woodrat, Sarah A. Conditt, David O. Ribble
Social Organization Of Neotoma Micropus, The Southern Plains Woodrat, Sarah A. Conditt, David O. Ribble
David O Ribble
This study described the social organization of Neotoma micropus, the southern plains woodrat, using radiotelemetry. We studied woodrats from September 1994 through April 1995 at the Urban Wilderness Reserve in S Bexar County, Texas. Sixteen individuals (three adult males, 11 adult females, and two subadult males) were radiocollared and located in the evening or early morning duringJanuary and February. Seventy-four percent of female radiolocations and 57% of male radiolocations were from their respective nests. No more than one adult individual was observed at any nest at the same time. Males had significantly larger (x = 1899 m2) home ranges than …
Social Organization Of The Eastern Rock Elephant-Shrew (Elephantulus Myurus) : The Evidence For Mate Guarding, David Ribble, Michael Perrin
Social Organization Of The Eastern Rock Elephant-Shrew (Elephantulus Myurus) : The Evidence For Mate Guarding, David Ribble, Michael Perrin
David O Ribble
Understanding the costs and benefits of defending solitary females, or mate guarding, may be the key to understanding the evolution of monogamy in most mammals. Elephant-shrews, or sengis, are a unique clade of small mammals that are particularly attractive for studies of mate guarding. We studied the spatial organization of Eastern Rock Sengis (Elephantulus myurus) in KwaZulu-Natal, South Africa, from August – December 2000. Our objectives were to describe the home ranges of males and females using radiotelemetry, noting the sizes and overlap of adjacent ranges and how the spatial organization changes through time. Males and females were spatially associated …
Density And Cover Preferences Of Black-And-Rufous Elephant-Shrews (Rhynchocyon Petersi) In Chome Forest Reserve, Tanzania, Stephanie Coster, David Ribble
Density And Cover Preferences Of Black-And-Rufous Elephant-Shrews (Rhynchocyon Petersi) In Chome Forest Reserve, Tanzania, Stephanie Coster, David Ribble
David O Ribble
The objective of this study was to determine the density and habitat preference of the Black-andrufous elephant-shrew (Rhynchocyon petersi) in Chome Forest Reserve, Tanzania. Chome Forest (143km2) is located in the South Pare Mountains and provides critical habitat for endangered R. petersi. Twelve 300m transects were cut through the centre of the forest in an east-west direction and the number of elephant-shrew nests within 2.5 meters on each side of the transects was recorded. The mean number of nests per 100m transect (0.39 ± 0.47 [1SE]) translated to a density estimate of 19 elephant-shrews per km2 (SE=23). Nest sites tended …
The Mating System Of Northern Populations Of Peromyscus Maniculatus As Revealed By Radiotelemetry And Dna Fingerprinting, David Ribble, J Millar
The Mating System Of Northern Populations Of Peromyscus Maniculatus As Revealed By Radiotelemetry And Dna Fingerprinting, David Ribble, J Millar
David O Ribble
No abstract provided.
Social Organization Of Neotoma Micropus, The Southern Plains Woodrat, Sarah A. Conditt, David O. Ribble
Social Organization Of Neotoma Micropus, The Southern Plains Woodrat, Sarah A. Conditt, David O. Ribble
David O Ribble
This study described the social organization of Neotoma micropus, the southern plains woodrat, using radiotelemetry. We studied woodrats from September 1994 through April 1995 at the Urban Wilderness Reserve in S Bexar County, Texas. Sixteen individuals (three adult males, 11 adult females, and two subadult males) were radiocollared and located in the evening or early morning duringJanuary and February. Seventy-four percent of female radiolocations and 57% of male radiolocations were from their respective nests. No more than one adult individual was observed at any nest at the same time. Males had significantly larger (x = 1899 m2) home ranges than …
Relative Intestine Length And Feeding Ecology Of Freshwater Fishes, David O. Ribble, M H. Smith
Relative Intestine Length And Feeding Ecology Of Freshwater Fishes, David O. Ribble, M H. Smith
David O Ribble
There is a significant relationship between the intestine length (Y) and total body length (X) for 11 species of freshwater fish (Y = 0.08X1.42). Sufficient variation exists about this relationship to indicate important differences among the species' diets. The diets for each species, ranked on a Trophic Index scale determined from literature data, are negatively rank order correlated with the mean relative intestine lengths (rs = -0.67). There is no significant rank order correlation between the Trophic Indices determined from data on stomach contents and the mean relative intestine lengths for fish from a single creek.
The Evolution Of Social And Reproductive Monogamy In Peromyscus, Evidence From Peromyscus Californicus (The California Mouse), David Ribble
The Evolution Of Social And Reproductive Monogamy In Peromyscus, Evidence From Peromyscus Californicus (The California Mouse), David Ribble
David O Ribble
No abstract provided.
Social Organization Of The Eastern Rock Elephant-Shrew (Elephantulus Myurus) : The Evidence For Mate Guarding, David O. Ribble, Michael R. Perrin
Social Organization Of The Eastern Rock Elephant-Shrew (Elephantulus Myurus) : The Evidence For Mate Guarding, David O. Ribble, Michael R. Perrin
David O Ribble
Understanding the costs and benefits of defending solitary females, or mate guarding, may be the key to understanding the evolution of monogamy in most mammals. Elephant-shrews, or sengis, are a unique clade of small mammals that are particularly attractive for studies of mate guarding. We studied the spatial organization of Eastern Rock Sengis (Elephantulus myurus) in KwaZulu-Natal, South Africa, from August – December 2000. Our objectives were to describe the home ranges of males and females using radiotelemetry, noting the sizes and overlap of adjacent ranges and how the spatial organization changes through time. Males and females were spatially associated …
Phylogenetic Analysis Of The Socioecology Of Neotomine-Peromyscine Rodents, M Kalcounis-Rueppell, David Ribble
Phylogenetic Analysis Of The Socioecology Of Neotomine-Peromyscine Rodents, M Kalcounis-Rueppell, David Ribble
David O Ribble
No abstract provided.
A Comparison Of Home Ranges Of Two Species Of Peromyscus Using Trapping And Radiotelemetry Data, David Ribble, A Wurtz, E Mcconnell, J Buegge, K Welch
A Comparison Of Home Ranges Of Two Species Of Peromyscus Using Trapping And Radiotelemetry Data, David Ribble, A Wurtz, E Mcconnell, J Buegge, K Welch
David O Ribble
We investigated differences between sizes of home ranges using trapping and radiotelemetry data for syntopic Peromyscus boylii and P. truei. Sizes of home ranges were calculated from the minimum convex polygon of trap locations and radiotelemetry locations and compared between individuals. The 2 estimates of home-range size were significantly correlated, although on an average trapping home ranges were significantly smaller than sizes of radiotelemetry home ranges. Home-range sizes from radiotelemetry were inversely correlated with conspecific density, but home-range sizes from trapping were not. Thus, at low density, radiotelemetry home ranges were significantly larger than trapping home ranges, but at high …
Male Mate Guarding In A Socially Monogamous Mammal, The Round-Eared Sengi: On Costs And Trade-Offs, Melanie Schubert, Carsten Schradin, H Rodel, Neville Pillay, David Ribble
Male Mate Guarding In A Socially Monogamous Mammal, The Round-Eared Sengi: On Costs And Trade-Offs, Melanie Schubert, Carsten Schradin, H Rodel, Neville Pillay, David Ribble
David O Ribble
No abstract provided.
The Round-Eared Sengi And The Evolution Of Social Monogamy: Factors That Constrain Males To Live With A Single Female, Melanie Schubert, Neville Pillay, David O. Ribble, Carsten Schradin
The Round-Eared Sengi And The Evolution Of Social Monogamy: Factors That Constrain Males To Live With A Single Female, Melanie Schubert, Neville Pillay, David O. Ribble, Carsten Schradin
David O Ribble
Animal dispersion in space and time results from environmental pressures, and affects the outcome of a species’ social organization. When females are solitary, males may either roam or be pair-living. We studied possible environmental influences affecting the social organization of the round-eared sengi (Macroscelides proboscideus) in a semi-desert in South Africa, using trapping and radio-tracking across 2.5 yr. Adult sex ratios did not deviate from 1:1 and we found no indication of sexual dimorphism in body mass. Females maintained exclusive areas, which had little overlap (<4%) with neighbouring females (NF), and males overlapped predominately only with the home range of single females. Generally, inter- and intra-sexual overlap with neighbouring individuals was low (3–6%) for both sexes, indicating territoriality and pair-living. Pairs were perennial and territories were maintained year-round. However, males generally maintained much larger areas than females, which were sensitive to population density. Male space use appeared to be primarily limited by the presence of neighbouring males. Female home ranges were smaller-sized despite changes in population density, possibly for energetic efficiency. Some paired males attempted to take over widowed females, but shifted back to their original home range following the intrusion of an un-paired male. We conclude that social monogamy is the predominant social organization in round-eared sengis in a semi-desert that may have resulted from females living solitarily in small exclusive territories, balanced sex ratios, and from a low variation of body mass between males.
A New Species Of Giant Sengi Or Elephant-Shrew (Genus Rhynchocyon) Highlights The Exceptional Biodiversity Of The Udzungwa Mountains Of Tanzania, F Rovero, G Rathbun, A Perkin, T Jones, David Ribble, C Leonard, R Mwakisoma, N Doggart
A New Species Of Giant Sengi Or Elephant-Shrew (Genus Rhynchocyon) Highlights The Exceptional Biodiversity Of The Udzungwa Mountains Of Tanzania, F Rovero, G Rathbun, A Perkin, T Jones, David Ribble, C Leonard, R Mwakisoma, N Doggart
David O Ribble
A new species of sengi, or elephant-shrew, is described. It was discovered in the northern Udzungwa Mountains of Tanzania in 2005. Sengis (Order Macroscelidea, super-cohort Afrotheria) include four genera and 15 species of mammals that are endemic to Africa. This discovery is a significant contribution to the systematics of this small order. Based on 49 camera trap images, 40 sightings and five voucher specimens, the new sengi is diurnal and distinguished from the other three species of Rhynchocyon by a grizzled grey face, pale yellow to cream chest and chin, orange-rufous sides, maroon back and jet-black lower rump and thighs. …
Lifetime Reproductive Success And Its Correlates In The Monogamous Rodent, Peromyscus Californicus, David Ribble
Lifetime Reproductive Success And Its Correlates In The Monogamous Rodent, Peromyscus Californicus, David Ribble
David O Ribble
I investigated the variation in lifetime reproductive success (LRS) between males and females in the monogamous rodent Peromyscus californicus at the Hastings Natural History Reservation in central coastal California. Genealogical relationships of newly emerged juveniles were determined using a combination of fluorescent pigment transfer and DNA fingerprinting for 123 juveniles from June 1987 to April 1990. 2. Neither litter size nor interbirth interval changed in relation to parity (litter sequence), suggesting that reproductive success did not change with age. Interbirth intervals were significantly longer for individuals that re-mated compared to continuously mated individuals. 3. Lifetime reproductive success data were collected …
Effects Of Cutting Ashe Juniper Woodlands On Small Mammal Populations In The Texas Hill Country, K A. Schnepf, J A. Heselmeyer, David O. Ribble
Effects Of Cutting Ashe Juniper Woodlands On Small Mammal Populations In The Texas Hill Country, K A. Schnepf, J A. Heselmeyer, David O. Ribble
David O Ribble
We studied the effects of cutting Ashe juniper (Juniperus ashei Bucholz) woodlands on populations of small mammals at Friedrich Wilderness Park, north of San Antonio, Texas. Three patches of juniper ranging from 1.8 ha to 2.4 ha were cut to provide habitat for endangered black-capped vireos (Vireo atricapillus Woodhouse). We trapped small mammals along transects placed in the treated patches and in untreated areas of the park from October 1995 to May 1996 and again from October 1996 to March 1997. Three species of small mammals were trapped, but Peromyscus pectoralis Osgood (white-ankled mouse) was the most common species captured. …
Differences In Ultrasonic Vocalizations Between Wild And Laboratory California Mice (Peromyscus Californicus), Matina Kalcounis-Rueppell, Radmila Petric, Jessica Briggs, Catherine Carney, Matthew Marshall, John Willse, David Ribble, Janet Crossland
Differences In Ultrasonic Vocalizations Between Wild And Laboratory California Mice (Peromyscus Californicus), Matina Kalcounis-Rueppell, Radmila Petric, Jessica Briggs, Catherine Carney, Matthew Marshall, John Willse, David Ribble, Janet Crossland
David O Ribble
Background: Ultrasonic vocalizations (USVs) emitted by muroid rodents, including laboratory mice and rats, are used as phenotypic markers in behavioral assays and biomedical research. Interpretation of these USVs depends on understanding the significance of USV production by rodents in the wild. However, there has never been a study of muroid rodent ultrasound function in the wild and comparisons of USVs produced by wild and laboratory rodents are lacking to date. Here, we report the first comparison of wild and captive rodent USVs recorded from the same species, Peromyscus californicus. Methodology and Principal Findings: We used standard ultrasound recording techniques to …
Home Ranges And Social Organization Of Syntopic Peromyscus Boylii And P. Truei, David Ribble, S Stanley
Home Ranges And Social Organization Of Syntopic Peromyscus Boylii And P. Truei, David Ribble, S Stanley
David O Ribble
No abstract provided.