Pabst, D.A.*; Koopman, H.N.; Rommel, S.A.; Potter, C.W; Read, R.J.; McLellan, W.A.: Ontogenetic allometry and body composition of harbor porpoises Phocoena phocoena from the western north Atlantic North Atlantic harbor porpoises face considerable energetic challenges, as they are relatively small mammals with an intense reproductive schedule and a cold-water habitat. We describe post-natal growth of […]
year: 2001
Models of the developmental determination of feather shape and pigmentation pattern
Prum, R.O.*; Williamson, S.: Models of the developmental determination of feather shape and pigmentation pattern. We present the first explicit theories of the growth of feather shape (the outline of a pennaceous vane) and the determination of within feather pigmentation pattern. The growth of feathers is simulated with a mathematical model based on six growth […]
Effects of developmental temperature on musculoskeletal growth and jumping performance in the treefrog Hyla chrysoscelis
ESPINOZA, N.R.: Effects of developmental temperature on musculoskeletal growth and jumping performance in the treefrog Hyla chrysoscelis. Several vertebrate species have shown ontogenetic adjustments in the form and material properties of the growing musculoskeletal system to allow the same level of locomotor performance in juveniles and adults. The rate of growth and amount of time […]
Conservative ontogenetic trajectories artifacts or data
ZELDITCH, M.L.*; SHEETS, H.D.; FINK, W.L.: Conservative ontogenetic trajectories: artifacts or data? Most comparative studies support the hypothesis that ontogenetic trajectoriesare historically conservative. The primary basis for this generalization is the typically high correlation between ontogenetic allometric vectors, a measure of their similarity. More than 76% of 233 comparisons yield vector correlations as high as […]
Chondrocranial development in larval Rana sylvatica (Anura Ranidae) A morphometric analysis of cranial allometry and ontogenetic shape change
Peter Larson: Chondrocranial development in larval Rana sylvatica (Anura: Ranidae): A morphometric analysis of cranial allometry and ontogenetic shape change This study provides baseline quantitative data on the morphological development of the chondrocranium in a larval anuran. Both linear and geometric morphometric methods are used to quantitatively analyze size related shape change in a complete […]
What Amphibian Malformations Tell Us About Causes
LANNOO, M.J.*; NANJAPPA, P.; BLACKBURN, L.M.: What Amphibian Malformations Tell Us About Causes Amphibian malformations in northern and eastern regions of North America have generated considerable attention from both the general public and the scientific community. Common malformations of ranid frogs collected by the Minnesota Pollution Control Agency include missing limbs (ectromelia) and multiple limbs […]
The Diminishing Abundance of Horseshoe Crabs in Delaware Bay Potential Impacts on Migrant Shorebirds
BOTTON, M. L.*; LOVELAND, R. E.: The Diminishing Abundance of Horseshoe Crabs in Delaware Bay: Potential Impacts on Migrant Shorebirds Migratory shorebirds on staging areas typically concentrate their feeding on unusually abundant prey species, enabling them to rapidly increase mass prior to the next leg of their migration. Delaware Bay is the most important staging […]
Reef Check – Papua New Guinea’s participation in a global assessment of human effects on coral reefs
Quinn, N.J.: Reef Check – Papua New Guinea’s participation in a global assessment of human effects on coral reefs Villagers in Papua New Guinea (PNG) have used coral reefs for thousands of years. Recent human development in PNG has altered the use of coral reefs. Today more reefs are fished commercially, used by tourist divers, […]
Dispersal of hemiparasitic mistletoe (Plicosepalus acaciae) by the Yellow-vented Bulbul (Pycnonoyus xanthopygos) among Acacia trees in Israel
Green, A.K.*; Ward, D.: Dispersal of hemiparasitic mistletoe (Plicosepalus acaciae) by the Yellow-vented Bulbul (Pycnonoyus xanthopygos) among Acacia trees in Israel Infection by the mistletoe (Plicosepalus acaciae) may exacerbate the already low and infrequent recruitment of Acacia raddiana, A. tortilis, and A. gerrardii negevensis (70% of foraging attempts) only when fruits were abundant in the […]
Alterations in Stress Proteins Correlate with Space Competition in Sessile Marine Invertebrates
SNYDER, M.J.*; ROSSI, S.: Alterations in Stress Proteins Correlate with Space Competition in Sessile Marine Invertebrates. Competition for space among sessile marine invertebrates, following larval settlement, can involve aggressive behaviors and the production of biologically active substances. These strategies have been widely studied in benthic cnidarians, for which the destructive nature of such responses to […]