The Ecology of Wasmannia Auropunctata in Primary Tropical Rainforest in Costa Rica and Panama

2021 ◽  
pp. 80-90
Author(s):  
Leeanne E. Tennant
Keyword(s):  
Costa Rica ◽  
Tropical Rainforest ◽  
Wasmannia Auropunctata

scholarly journals Are tropical reptiles really declining? A six-year survey of snakes in Drake Bay, Costa Rica, and the role of temperature, rain and light

2019 ◽  
Author(s):  
Jose Pablo Barquero-González ◽  
Tracie L. Stice ◽  
Gianfranco Gómez ◽  
Julián Monge-Nájera
Keyword(s):  
Costa Rica ◽  
Environmental Factors ◽  
Sea Level ◽  
Tropical Rainforest ◽  
Transect Counts ◽  
Diet Type

AbstractIntroductionstudies in the last two decades have found declining snake populations in both temperate and tropical sites, including informal reports from Drake Bay, Costa Rica.Objectiveto investigate if reports of decreasing snake populations in Drake Bay had a real basis, and if environmental factors, particularly temperature, rain and light, have played a role in that decrease.Methodswe worked at Drake Bay from 2012 through 2017 and made over 4000 h of transect counts. Using head flashlights we surveyed a transect covered by lowland tropical rainforest at an altitude of 12–38 m above sea level, near the Agujas River, mostly at 1930–2200 hours. We counted all the snakes that we could see along the transect.Resultssnake counts increase from August to September and then decline rapidly. The May snakes/rainfall peaks coincide, but the second snake peak occurs one month before the rain peak; we counted more snakes in dry nights, with the exception of Imantodes cenchoa which was equally common despite rain conditions. We saw less Leptodeira septentrionalis on bright nights, but all other species were unaffected. Along the six years, the number of species with each diet type remained relatively constant, but the number of individuals declined sharply for those that feed on amphibians and reptiles. We report Rhadinella godmani, a highland species, at 12–38 m of altitude.Conclusionnight field counts of snakes in Drake Bay, Costa Rica, show a strong decline from 2012 through 2017.

Revised diagnosis of the family Blattisociidae (Acari: Mesostigmata: Phytoseioidea), with a key to its genera and description of a new fungus- inhabiting genus from Costa Rica

Zootaxa ◽  
2010 ◽  
Vol 2479 (1) ◽  
pp. 1 ◽  
Author(s):  
EVERT E. LINDQUIST ◽  
MARIA L. MORAZA
Keyword(s):  
Costa Rica ◽  
Life Histories ◽  
Tropical Rainforest ◽  
Lower Surface ◽  
Large Size ◽  
The Family ◽  
Ventral Process

The genus Opilioseius gen. nov. of the phytoseioid family Blattisociidae is described, based on adults and deutonymphs of one newly described species from Costa Rica. These striking long-legged mites undergo their life histories on the lower surface of their fungal hosts in lowland tropical rainforest. Opilioseius grallator sp. nov. coexists with a surprising variety of blattisociine and other mesostigmatic mites on fungi of the genus Coriolus. A diagnosis of the recently-revised familial concept of the Blattisociidae is given, along with a key to its constituent genera. Attention is drawn to the unusually large size of the egg relative to the size of the maternal female, and to an apical ventral process on the tarsus of legs II to IV, found to be present on a variety of other mesostigmatic mites, but not noted previously.

scholarly journals The etTects of food presentation and microhabitat upon resource monopoly in a ground-foraging ant (Hymenoptera: Formicidae) community

1969 ◽  
pp. 629-642
Author(s):  
Terrence P McGlynn ◽  
S Eben Kirksey
Keyword(s):  
Costa Rica ◽  
Food Presentation ◽  
Wasmannia Auropunctata

En los bosques húmedos de la Región Neotropical conviven varias especies de hormigas omívoras, defensoras de recursos alimenticios. Aunque el suelo del bosque es heterogéneo en microhábitat y alimento, se sabe poco sobre el impacto de ambos en las hormigas. Se investiga cómo influencian el tipo de alimento y el microhábitat la forma en que estas hormigas acaparan el alimento en un bosque húmedo tropical maduro ( bajuras de Costa Rica). Se midieron ocho características de microhábitat en 66 puntos de una parcela de 0.5 ha. En cada punto se colocaron dos categorías de cebo ( atún): "dividido" y "agrupado." Se midió el acaparamiento de cebo por especie y el número de hormigas por cebo. De cinco especies comunes, dos (Wasmannia auropunctata y Pheido/e simonsi) monopolizaron con más frecuencia uno de los dos tipos de cebo, y una (P. simonsi) tuvo más individuos en los cebos divididos. La frecuencia de monopolio, comportamiento, y la ausencia de hormigas en punto dado en el bosque varió con el tipo de cebo. La frecuencia de acaparamiento se asoció con tipo de microhábitat en dos variables de microhábitat: profundidad de la hojarasca y palmas; la variación en distancia de bóvedas de árboles y caminos de hormigas cortadoras de hojas se asoció con cambios en el número de buscadores de alimento. En al menos dos especies la presentación del alimento afectó el acaparamiento; entre todas las hormigas estudiadas, los microhábitats y el tipo de alimento determinan en parte la frecuencia de acaparamiento y el número de individuso que llega al alimento. Estos resultados sugieren que la localización y presentación de alimento determina en parte cual especie de hormiga utilizará el recurso.

scholarly journals Are Tropical Reptiles Really Declining? A Six-year Survey of Snakes in Drake Bay, Costa Rica, and the Role of Temperature, Rain and Light

2019 ◽  
Author(s):  
José Pablo Barquero-González ◽  
Tracie L. Stice ◽  
Gianfranco Gómez ◽  
Julian Monge-Najera
Keyword(s):  
Costa Rica ◽  
Environmental Factors ◽  
Sea Level ◽  
Tropical Rainforest ◽  
Number Of Species ◽  
Transect Counts ◽  
Number Of Individuals ◽  
Diet Type

Introduction: studies in the last two decades have found declining snake populations in both temperate and tropical sites, including informal reports from Drake Bay, Costa Rica. Objective: to investigate if reports of decreasing snake populations in Drake Bay had a real basis, and if environmental factors, particularly temperature, rain and light, have played a role in that decrease. Methods: we worked at Drake Bay from 2012 through 2017 and made over 4000 h of transect counts. Using head flashlights we surveyed a transect covered by lowland tropical rainforest at an altitude of 12–38 m above sea level, near the Agujas River, mostly at 1930–2200 hours. We counted all the snakes that we could see along the transect. Results: snake counts increase from August to September and then decline rapidly. The May snakes/rainfall peaks coincide, but the second snake peak occurs one month before the rain peak; we counted more snakes in dry nights, with the exception of Imantodes cenchoa which was equally common despite rain conditions. We saw less Leptodeira septentrionalis on bright nights, but all other species were unaffected. Along the six years, the number of species with each diet type remained relatively constant, but the number of individuals declined sharply for those that feed on amphibians and reptiles. We report Rhadinella godmani, a highland species, at 12–38 m of altitude. Conclusion: night field counts of snakes in Drake Bay, Costa Rica, show a strong decline from 2012 through 2017.

scholarly journals Sub-Canopy Temperature Dynamics of a Native Tree Plantation from a Lowland Tropical Rainforest in Costa Rica

2014 ◽  
Vol 04 (03) ◽  
pp. 191-196
Author(s):  
Traci-Lynn Hirai ◽  
Víctor D. Carmona-Galindo ◽  
Stacie Samuelson ◽  
Cherie Hale ◽  
Elizabeth Braker
Keyword(s):  
Costa Rica ◽  
Tropical Rainforest ◽  
Canopy Temperature ◽  
Tree Plantation ◽  
Native Tree ◽  
Temperature Dynamics

scholarly journals A new species of planthopper in genus Herpis (Hemiptera: Derbidae) from lowland tropical rainforest in Costa Rica

Zootaxa ◽  
2021 ◽  
Vol 5032 (1) ◽  
pp. 121-135
Author(s):  
BRIAN W. BAHDER ◽  
MARCO A. ZUMBADO ECHAVARRIA ◽  
EDWIN A. BARRANTES BARRANTES ◽  
ERICKA E. HELMICK ◽  
CHARLES R. BARTLETT
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Molecular Analysis ◽  
New World ◽  
Tropical Rainforest ◽  
Strong Support ◽  
Recent Survey ◽  
New Combinations ◽  
A New Species

Recent survey efforts in the Neotropics have documented a variety of new species of planthoppers associated with palms. Herein, a new species, Herpis soros sp. n., is described from palms in lowland tropical rainforest from Costa Rica. Other species in the genus (H. metcalfi, H. albida, and H. fuscovittata) are evaluated to provide an updated diagnosis of the genus Herpis. The New World Phaciocephalus is examined because two species were described in the genus Herpis with P. fimbriolata being recorded for both Herpis and Phaciocephalus. After examining holotype material for the New World Phaciocephalus, two species were determined to belong to other genera resulting in new combinations Oropuna orba comb. n. and Persis (Anapersis) pallidovenosa comb. n. The synonymy of Syntames with Herpis is reviewed, with S. fuscus moved to Oropuna as Oropuna fusca comb. n. Finally, molecular analysis of the new species based on COI and 18S show strong support for H. soros sp. n. as a distinct clade relative to all other cenchreines available.  

A  new species of planthopper in the genus Haplaxius (Hemiptera: Auchenorrhyncha: Fulgoroidea: Cixiidae) on palms in Costa Rica and a new country record for Haplaxius skarphion

Zootaxa ◽  
2020 ◽  
Vol 4767 (4) ◽  
pp. 543-552
Author(s):  
BRIAN W. BAHDER ◽  
EDWIN A. BARRANTES BARRANTES ◽  
MARCO. A. ZUMBADO ECHAVARRIA ◽  
DE-FEN MOU ◽  
ERICKA E. HELMICK ◽  
...  
Keyword(s):  
Costa Rica ◽  
Tropical Rainforest ◽  
Morphological Characters ◽  
Molecular Evidence ◽  
Evidence Based ◽  
New Taxon ◽  
Lethal Yellowing ◽  
First Time ◽  
Large Taxon ◽  
A New Species

The genus Haplaxius is a large taxon of cixiid planthoppers that is of economic importance due to the ability of Haplaxius crudus to transmit lethal yellowing in coconut palms. Haplaxius dougwalshi sp. n. is established as a new taxon of Cixiidae in the tribe Oecleini collected from native palms in lowland tropical rainforest in Costa Rica. Placement in the genus Haplaxius is supported both by molecular evidence based on the COI and 18S genes as well as by morphological characters. This novel taxon was discovered during survey work in Costa Rica to look for phytoplasmas and document planthopper diversity on palms. Furthermore, Haplaxius skarphion was also collected from coconut palms during survey work and is reported for the first time in Costa Rica. 

Howling on the edge: Mantled howler monkey (Alouatta palliata) howling behaviour and anthropogenic edge effects in a fragmented tropical rainforest in Costa Rica

Ethology ◽  
2019 ◽  
Vol 125 (9) ◽  
pp. 593-602 ◽  
Author(s):  
Laura M. Bolt ◽  
Amy L. Schreier ◽  
Dorian G. Russell ◽  
Zachary S. Jacobson ◽  
Carrie Merrigan‐Johnson ◽  
...  
Keyword(s):  
Costa Rica ◽  
Edge Effects ◽  
Tropical Rainforest ◽  
Alouatta Palliata ◽  
Howler Monkey ◽  
Mantled Howler ◽  
Mantled Howler Monkey

A new genus of fungus-inhabiting blattisociid mites (Acari: Mesostigmata: Phytoseioidea) from Middle America, with a key to genera and subgenera of the subfamily Blattisociinae

Zootaxa ◽  
2011 ◽  
Vol 2758 (1) ◽  
pp. 1 ◽  
Author(s):  
MARÍA L. MORAZA ◽  
EVERT E. LINDQUIST
Keyword(s):  
Costa Rica ◽  
New Genus ◽  
Tropical Rainforest ◽  
Dorsal Shield ◽  
Southern Mexico ◽  
Morphological Attributes ◽  
New Synonyms ◽  
The World ◽  
Middle America ◽  
Males And Females

The genus Fungiseius gen. nov. is described, based on adults of two newly described species. These rather short-legged mites, with their second pair of legs markedly thickened, have been collected only from bracket fungi. The more generalized form, F. clavulisetis gen. et sp. nov., is based on female specimens from Chiapas Province, southern Mexico. The more derivative form, F. armatus gen. et sp. nov., is based on females and males from several samples of bracket fungi in lowland tropical rainforest of Costa Rica, where they coexist with a remarkable variety of other blattisociine mites. Notable morphological attributes peculiar to adults of this genus include the dorsal shield having a delineated lateral rim that bears a row of setae of the lateral or marginal series, legs II greatly thickened, with enlarged, claw-like setae on the dorsolateral face of the tarsus, and deep furrows postgenitally on females and postanally on males and females. Comparisons are made with fungus-inhabiting mites of the genus Hoploseius, whose adults also have the second pair of legs thickened. A revised key to the world genera and subgenera of the subfamily Blattisociinae is presented; the genus Orthadenella Athias-Henriot is excluded, and placed in the ascoid family Melicharidae. The subgenera Borinquolaelaps Fox, Crinidens Karg, and Cuspiacus Christian & Karg, sensu Christian & Karg 2006 are treated as new synonyms of the subgenus Lasioseius Berlese.

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