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Status and ecology of Sotalia fluviatilis in the Cayos Miskito Reserve, Nicaragua.
(1999)
In March through May of 1996--98 we conducted research in the Cayos Miskito Reserve, Nicaragua to assess the status, ecology and distribution of Sotalia fluviatilis, a dolphin known from southern Brazil to Honduras. Surveys ...
Plumage coloration and dominance behavior in three species of sparrows of the genus Zonotrichia.
(1983)
I investigated the general hypothesis that plumage variability in winter flocking birds acts as a status signal using three species: Harris' sparrow (Zonotrichia querula), white-crowned sparrow (Z. leucophrys) and ...
Thermoregulation of the box turtles Terrapene carolina and Terrapene ornata.
(2001)
Terrapene ornata and T. carolina are closely related box turtles that live in different habitats: grasslands and desert edges, and forested areas, respectively. Considering these species' habitat selection, I predicted ...
Correlates of extra-pair paternity and the effects of ectoparasites on nestling growth, parental provisioning and reproductive success in the house sparrow.
(2000)
In addition, I looked at another aspect of the reproductive biology of the House Sparrow, the effects of ectoparasites on nestling growth, parental provisioning and reproductive success. To determine whether Pellonyssus ...
Endocrine mediation of alternative mating tactics in toads: A proximate perspective on ecological patterns and sexual selection.
(2005)
Male Great Plains toads (Bufo cognatus) and Woodhouse's toads (Bufo woodhousii) alternate between one of two mating tactics; they may either vocalize to attract mates or they may adopt a non-calling "satellite" tactic. ...
A geography of extinction: Patterns in the contraction of geographic ranges.
(1998)
I examined the contraction of geographic ranges in 245 species. Remnant portions of the geographic range tended to persist in the periphery of the species' historical range. Larger patches of the geographic ranges persisted ...
Factors affecting mercury contamination in fish from Caddo Lake, Texas.
(2007)
We conducted a survey of mercury contamination in largemouth bass ( Micropterus salmoides) from Caddo Lake, Texas, and found that largemouth bass collected from forested wetland habitats had higher concentrations of mercury ...
MATE CHOICE, ILLUSIONS, AND BEHAVIORAL DIVERGENCE IN POECILIIDAE
(2019-12-13)
Chapter 1: Illusions are commonplace and distort perception in ways that make objects appear different from reality. Such phenomena may also play a role in mate evaluation because body size and ornament size are signals ...