Browsing Biología by Title
Now showing items 858-877 of 1582
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Janzen-Connell effects shape gene flow patterns and realized fitness in the tropical dioecious tree Spondias purpurea (ANACARDIACEAE)
(2020-03-12)Pollination and seed dispersal patterns determine gene flow within plant populations. In tropical forests, a high proportion of trees are dioecious, insect pollinated and dispersed by vertebrates. Dispersal vectors and ... -
Joaquín Bernardo García Castro, 1944-2001
(2002-04)No nos recuperábamos del pesar causado por la muerte de la ex directora del Jardín Botánico Lankester, Dora Emilia Mora-Retana, cuando recibimos con gran dolor la noticia del fallecimiento de su gran amigo colaborador, el ... -
Karma, a new genus in the Pleurothallidinae (Orchidaceae)
(2023-06-29)The new generic name Karma (Orchidaceae: Pleurothallidinae) is proposed to substitute the concept of Tubella (Luer) Archila [2009], which is illegitimate on account of the prior homonym Tubella Archila [2006], a genus in ... -
Karyotype of the yellow-bellied sea snake, Pelamis platurus
(1980)In this paper we describe the karyotype of the yellow-bellied sea snake, Pelamis platurus from Costa Rica. The diploid number is 38 chromosomes, with 20 macrochromosomes and 18 microchromosomes. The pairs 1 and 2 are ... -
Key to the species of the genus Scleria (Cyperaceae) in Costa Rica based on the morphology of achenes
(2016)We described the achenes of 21 species of the genus Scleria reported in Costa Rica using 16 morphological characters and developed a key based only on achene characteristics. Specimens deposited in herbaria in Costa Rica ... -
Kinship, association, and social complexity in bats
(2019-01)Among mammals, bats exhibit extreme variation in sociality, with some species living largely solitary lives while others form colonies of more than a million individuals. Some tropical species form groups during the day ... -
Lack of early inbreeding depression and distribution of selfing rates in the neotropical emergent tree Ceiba pentandra: Assessment from several reproductive events
(2015)Premise of the study: Selfing and mixed mating systems are prevalent in many flowering plants. Purging of genetic load can occur in these species, reducing negative effects of selfing. Long‐term studies of the temporal and ... -
Lactrodectismo en Costa Rica
(2017)Se reporta un accidente causado por la araña Latrodectus geometricus, incluida en el grupo conocido como “viudas negras”, en Costa Rica. El accidente le ocurrió a una mujer de 27 años vecina de la ciudad de Cartago, en su ... -
Laelia Lindl. [with a new combination]
(2022-02)Se presentan, discuten e ilustran especies costarricenses del género Laelia (Orchidaceae). Una nueva combinación, Laelia lueddemannii subsp. costaricana, se propone. -
Landing manoeuvres predict roost-site preferences in bats
(2022-11-11)Roosts are vital for the survival of many species, and how individuals choose one site over another is affected by various factors. In bats, for example, species may use stiff roosts such as caves or compliant ones such ... -
Lankester-Garten, der Botanische Garten in Cartago, Costa Rica
(2002)The Lankester Botanical Garden of the University of Costa Rica was founded in 1973, it was named in honor of the English natural scientist and previous owner Charles H. Lankester (1879-1969). This garden is internationally ... -
Large-scale climatic phenomena drive fluctuations in macroinvertebrate assemblages in lowland tropical streams, Costa Rica: The importance of ENSO events in determining long-term (15y) patterns
(2019-02-08)Understanding how environmental variables influence the distribution and density of organisms over relatively long temporal scales is a central question in ecology given increased climatic variability (e.g., precipitation, ... -
Larval aggression is independent of food limitation in nurseries of a poison frog
(2016)Aggression between nurserymates is common in animals and often hypothesized to result from proximate resource limita- tion. In numerous terrestrial frogs, larvae develop in phytotelmata, tiny water bodies where resources ... -
Latrodectism in Costa Rica
(2017)Se reporta un accidente causado por la araña Latrodectus geometricus, incluida en el grupo conocido como “viudas negras”, en Costa Rica. El accidente le ocurrió a una mujer de 27 años vecina de la ciudad de Cartago, en su ... -
La Specklinia (Orchidaceae) con señuelo, una asombrosa nueva especie de los Andes occidentales en Colombia
(2018)Se describe e ilustra una nueva especie de Specklinia perte- neciente al subgénero Acostaea de los Andes occidentales de Colombia. Specklinia caulophryne está relacionada con S. campylotyle, pero puede distinguirse fácilmente ... -
Leaf and flower essential oil compositions of Gliricidia sepium (Fabaceae) from Costa Rica
(2015-04)Gliricidia is a small genus of flowering plants in the Fabaceae family. Gliricidia sepium is a multipurpose tree native to Mesoamerica and possibly northern South America. The chemical composition of the hydrodistilled ... -
Lepanthes arenasiana (Orchidaceae: Pleurothallidinae), a new species from Costa Rica
(2010-01)Lepanthes arenasiana from the Talamanca range in Costa Rica is described and illustrated. It is most similar to L. lancifolia but differs in having denticulate sepals, the petals with the upper lobe oblong, narrowing at ... -
Lepanthes aures‐ursinae and L. vertebrata spp. nov. (Orchidaceae: Pleurothallidinae) from Panama
(2017)Panama is still far from completing its orchid flora inventories, where large genera such as Lepanthes (Pleurothallidinae) reveal novelties regularly. Here, we describe and illustrate two new species of Lepanthes. Lepanthes ...