Now showing items 1-10 of 138
Yunia dichotoma, a lower devonian plant from Yunnan, China
(Elsevier, 1991-07-10)
This paper describes a new genus and species, Yunia dichotoma, collected from the Posonchong Formation of Siegenian age in the Wenshan district of Yunnan, China. The spiny axes are characterized by cruciate dichotomy. ...
Length variation of CAG repeats in Sry across populations of Mus domesticus
(Springer-Verlag, 1995-03)
Song copying and cultural transmission in indigo buntings
(Elsevier, 1993-12)
Abstract. First-year male indigo buntings, Passerina cyanea, copy the song of a neighbouring male during their first breeding season. To determine whether they assess their neighbours and copy selectively the songs of ...
Mio-pliocene seasonality on the snake river plain: comparison of faunal and oxygen isotopic evidence
(Elsevier, 1994-02-28)
Analysis of fish faunas and oxygen isotopic composition of a fish otolith from lacustrine deposits of southwestern Idaho provide a means of evaluating regional Miocene and Pliocene climates. A disharmonious assemblage ...
Patterns in tropical leaf litter and implications for angiosperm paleobotany
(Elsevier, 1994-03)
One hectare of undisturbed Amazonian forest, containing about 175 species of trees larger than 10 cm diameter at breast height, was studied to determine the relationship between high-richness forest and the autochthonous ...
Clonal variation in above- and below-ground growth responses of Populus tremuloides Michaux: Influence of soil warming and nutrient availability
(Kluwer Academic Publishers; Springer Science+Business Media, 1999-03)
Trembling aspen (Populus tremuloides Michx.) is the most widely distributed tree species in North America making it important to terrestrial carbon and nutrient cycles. Due to anthropogenic climate change high latitude ...
The effect of dietary nicotine on the allocation of assimilated food to energy metabolism and growth in fourth-instar larvae of the southern armyworm, Spodoptera eridania (Lepidoptera: Noctuidae)
(Springer-Verlag, 1992-03)
Dietary nicotine (0.5%), which is a substrate of the PSMO (polysubstrate monooxygenase) detoxification system in the southern armyworm Spodoptera eridania , has significant negative effects on the weight of food ingested, ...
Temperature and host effects on key morphological characters of Hemisarcoptes cooremani and Hemisarcoptes malus (Acari: Hemisarcoptidae)
(Kluwer Academic Publishers; Chapman & Hall ; Springer Science+Business Media, 1996-12)
We investigated the influence of temperature and resources on six morphological characters thought to distinguish two North American species of Hemisarcoptes (H. malus and H. cooremani ). We raised mites at three temperatures ...