A5061197372- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Ecology and Vegetation Dynamics Studies
- Animal Ecology and Behavior Studies
- Plant and animal studies
- Rangeland and Wildlife Management
- Animal Behavior and Welfare Studies
- Animal Vocal Communication and Behavior
- Animal Nutrition and Physiology
- Insect symbiosis and bacterial influences
- Conservation, Biodiversity, and Resource Management
- Bat Biology and Ecology Studies
- Agroforestry and silvopastoral systems
- Meat and Animal Product Quality
- Muscle activation and electromyography studies
- Banana Cultivation and Research
- Plant Water Relations and Carbon Dynamics
- Historical Studies in Central America
- Zoonotic diseases and public health
- Developmental Biology and Gene Regulation
- Hemispheric Asymmetry in Neuroscience
- Fire effects on ecosystems
- Archaeology and Natural History
- Evolution and Paleontology Studies
- Geography Education and Pedagogy
Organization for Tropical Studies
2008-2023
Organization For Tropical Studies
2013-2022
University of Florida
2022
Cornell University
1988-2004
New York State College of Veterinary Medicine
1988
Harvard University
1984-1985
Journal Article Locomotion, Posture, and Feeding Behavior of Kinkajous, Coatis, Raccoons Get access Deedra McClearn Division Biological Sciences, Section Ecology Systematics, Cornell University, Ithaca, NY 14853 Search for other works by this author on: Oxford Academic Google Scholar Mammalogy, Volume 73, Issue 2, 26 May 1992, Pages 245–261, https://doi.org/10.2307/1382055 Published: 1992 history Received: 15 December 1990 Accepted: 28 1991
Many climbing mammals are able to reverse normal hind foot posture effect the grip necessary descend headfirst or hang upside down. Such reversal is known in sciurids, procyonids, felids, viverrids, tupaiids, prosimians, and marsupials. The joint movements involved, however, have never been documented unequivocally although various interpretations (some contradictory) made. We report here radiographic data from species of genera Didelphis, Felis, Nasua, Nycticebus, Potos, Sciurus, Tupaia. In...
Abstract Understanding the mechanisms of muscle pattern formation requires that complete sequence ontogenetic events be defined, particularly in emergence architectural complexity and spatial relations between muscles skeletal elements. This analysis visceral arch myogenesis quail ( Coturnix coturnix japonica ) embryos identifies location premuscle condensations subsequent segregation individual muscles, documents initial orientation myofibers changes alignment associated with maturation,...
Abstract Muscle architecture, moment arms, and locomotor movements in the distal limb segments of procyonids Nasua (coati) Procyon (raccoon) are analyzed with reference to patterns muscle fiber length. This study addresses hypothesis that relative lengths among muscles a group can be predicted on basis correlates tension. The results include following: (1) consistent length exist within between two genera. (2) Differences accounted for by principal excursion—length muscle's arm about joint...
Abstract Degenerating myofibers have been reported in the embryos and neonates of a number birds mammals, but neither pervasiveness phenomenon nor spatiotemporal patterns degeneration has examined detail. Using transmission electron microscopy, we determined muscle cell death chick biventer cervicis, head extensor muscle. Cell is most pronounced at incubation days 10 through 15, occurs throughout This period during which many myofiber clusters segregate into individual fibers, each with...
Biological field stations are distributed throughout North America, capturing much of the ecological variability present at continental scale and encompassing many unique habitats. In addition to their role in supporting research education, offer legacies data, specimens, accumulated knowledge. Such often provide only framework for documenting understanding nature pace ecosystem, regional, global changes environmental conditions; processes; biodiversity. Because these because they serve as...
The abundances and habitat preferences of peccaries in Neotropical forests are important to understand because these keystone species influence many aspects the ecosystem. In Caribbean lowlands Costa Rica, we conducted walking surveys for ∼2 years study behavior population trends collared (Pecari tajacu), found that abundant at La Selva Biological Station overall, detection rates were relatively constant through time. A stable estimate was achieved only after 7–9 months surveying. We no...
Field identification of the White-footed Mouse (Peromyscus leucopus noveboracensis) and Long-tailed Deer maniculatus gracilis) is difficult because their similar external morphology. Peromyscus were sampled by live-trapping during a five-year period (1992-1996) at Arnot Teaching Research Forest, Van Etten, New York identified to species electrophoresis salivary amylase. No electromorphs shared between P. maniculatus, thus permitting unambiguous individuals. Means ranges four measurements...
Abstract Secondary forests are now prominent features in Neotropical landscapes, yet little is known about their conservation value for nonvolant mammalian communities. We performed a 20-month study using transect walks to survey the mammal fauna primary and secondary at La Selva Biological Station Caribbean lowlands of northeastern Costa Rica. found that can hold complex communities no species exhibited habitat preferences between forests. With few exceptions, behavioral group dynamic...
Understanding tropical biology is important for solving complex problems such as climate change, biodiversity loss, and zoonotic pandemics, but curricula view research mostly via a temperate-zone lens. Integrating into education urgently needed to tackle these issues.
Abstract Premise Plant ecological strategies are often defined by the integration of underlying traits related to resource acquisition, allocation, and growth. Correlations between key across diverse plants suggest that variation in plant is largely driven a fast–slow continuum economics. However, trait correlations may not be constant through life leaf, it still poorly understood how function varies over time long‐lived leaves. Methods Here, we compared acquisition allocation three...