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Articles 1 - 6 of 6
Full-Text Articles in Animal Sciences
Mammal Species Inventory Using Various Trapping Methods In Zone 4 Of Billy Barquedier National Park, Belize During Rainy Season, Mersady Redding
Mammal Species Inventory Using Various Trapping Methods In Zone 4 Of Billy Barquedier National Park, Belize During Rainy Season, Mersady Redding
Animal Science Undergraduate Honors Theses
Belize is a small country, but it is extremely ecologically diverse. Based on the few studies conducted in Belize, the abundance of mammals is low but diversity is high. Particular findings note the number and identity of species differed between four sites in the Maya Mountains of Belize, indicating that a data set from a single site is not representative of the Neotropical region. Insufficient data is available to estimate current species richness of many areas in Belize, including Billy Barquedier National Park (BBNP). The objective of this study was to explore trapping and documentation methods of terrestrial mammals in …
Geographic Variability Of Octopus Insularis Diet: From Oceanic Island To Continental Populations, Tatiana S. Leite, Allan T. Batista, Françoise D. Lima, Jaciana C. Barbosa, Jennifer A. Mather
Geographic Variability Of Octopus Insularis Diet: From Oceanic Island To Continental Populations, Tatiana S. Leite, Allan T. Batista, Françoise D. Lima, Jaciana C. Barbosa, Jennifer A. Mather
Jennifer Mather, PhD
A predator’s choice of prey can be affected by many factors. We evaluated various influences on population dietary composition, individual specialization and size of prey in Octopus insularis populations from 2 continental and 4 insular locations. We expected that habitat diversity would lead to diet heterogeneity. Furthermore, in keeping with MacArthur & Wilson’s (1967) theory of island biogeography, we expected that diet diversity would be lower around islands than on the coast of the mainland. Both predictions were confirmed when prey remains from octopus middens were examined. The 2 continental areas exhibited a richer habitat diversity and a wider variety …
Factors Affecting Waterfowl Diversity At Wetland Area, Punjab (Pakistan), Zahid Bhatti, Fakhra Nazir, Inayatullah Malik
Factors Affecting Waterfowl Diversity At Wetland Area, Punjab (Pakistan), Zahid Bhatti, Fakhra Nazir, Inayatullah Malik
Journal of Bioresource Management
Different wetlands are being selected through WWF to improve their conditions and to create awareness about their importance in public of Pakistan. The study will help in providing sound basis for the future conservation activities and management of waterfowl population, on sounder footing. The study was conducted at Marala wetlands from October 2000 to September 2001. The State of Jammu and Kashmir lies in the north. Three rivers, i.e., Tawi, Chenab and Manawar Tawi, coming from Jammu and Kashmir, flow into Game Reserve and meet to enter the Head Marala water storage reservoir. At river Jammu Tawi, 58 species of …
Demographic Response Of The Gambian Gerbil To Seasonal Changes In Savannah Fallow Fields, Safianu Rabiu, Robert K. Rose
Demographic Response Of The Gambian Gerbil To Seasonal Changes In Savannah Fallow Fields, Safianu Rabiu, Robert K. Rose
Biological Sciences Faculty Publications
The Savannah gerbil, Gerbilliscus gambianus (Muridae: Gerbillinae) is important to the ecological relations of the dry grassland ecosystem of West Africa, as well as, being a zoonotic agent of human diseases and po-tential crop pest. We examined the impact of seasonal changes on the population dynamics of G. gambianus in northern Nigeria, by completing population estimates using capture–mark–recapture (CMR) and indirect population density indices (PDI) methods. The latter included fecal pellet counts and limited spotlightening. During 1990–1992 we collected both CMR and PDI data, and established their relationship by regression, thus calibrating the PDI values to CMR estimator. We also …
Virginia Shellfish Aquaculture Situation And Outlook Report: Results Of The 2018 Virginia Shellfish Aquaculture Crop Reporting Survey, Karen Hudson, Virginia Sea Grant Marine Advisory Program
Virginia Shellfish Aquaculture Situation And Outlook Report: Results Of The 2018 Virginia Shellfish Aquaculture Crop Reporting Survey, Karen Hudson, Virginia Sea Grant Marine Advisory Program
Reports
No abstract provided.
Application Of Multifactorial Discriminant Analysis In The Morphostructural Differentiation Of Wild And Cultured Populations Of Vieja Azul (Andinoacara Rivulatus), Johanna Caez, Ana Gonzalez, Martin A. Gonzalez, Elena Angon, Jorge M. Rodriguez, Francisco Peña, Cecilio Barba, Antón García
Application Of Multifactorial Discriminant Analysis In The Morphostructural Differentiation Of Wild And Cultured Populations Of Vieja Azul (Andinoacara Rivulatus), Johanna Caez, Ana Gonzalez, Martin A. Gonzalez, Elena Angon, Jorge M. Rodriguez, Francisco Peña, Cecilio Barba, Antón García
Turkish Journal of Zoology
To better determine the ecological variation (body shape and structure) of the Vieja Azul (Andinoacara rivulatus; syn.: Aequidens rivulatus) in northwest Ecuador (Los Ríos Province), 300 specimens of both sexes (150 male and 150 female) were collected from 3 different locations, one from a wild production system and two from fish farm populations in the Quevedo River. Twelve meristic, 26 traditional morphometric, and 32 truss measurements, among 25 anatomical landmarks, were determined. The body weight (BW), total length (TL), eye diameter (ED), dorsal fin ray length (DFRL), and body perimeter 3 (P3) showed significant differences (P < 0.05) between production systems, and sex had significant influence on preanal length (Pre-AL), P3, and body width 2 (LC2). Females showed higher mean values than males in all measurements, except for BW. The Fulton factor differed for both factors considered. The canonical discriminant analysis revealed a percentage of correct assignment of 64.42% for the dataset, 85% and 60.9% for cultured and wild females, and 62.1% and 56.3% for wild and cultured males, respectively, as well as morphometric variation between groups. Results could be attributed to environmental conditions (habitat, temperature, and food). The Mahalanobis test showed greater distances among females than among males. In conclusion, this study provides valuable morphological information on the shape and structure of Andinoacara rivulatus that can be used to characterize and quantify the changes that occur as a consequence of adaptation to a different habitat. The authors hope that the information obtained from the present study will be helpful for fisheries, biologists, and taxonomists.