Influence of sea turtle nesting on hunting behavior and movements of jaguars in the dry forest of northwest Costa Rica

Biotropica ◽  
2020 ◽  
Vol 52 (6) ◽  
pp. 1076-1083 ◽  
Author(s):  
Víctor H. Montalvo ◽  
Todd K. Fuller ◽  
Carolina Saénz‐Bolaños ◽  
Juan Carlos Cruz-Díaz ◽  
Isabel Hagnauer ◽  
...  
Keyword(s):  
Costa Rica ◽  
Sea Turtle ◽  
Dry Forest ◽  
Hunting Behavior

Vannella epipetala n. sp. Isolated from the Leaf Surface of Spondias mombin (Anacardiaceae) Growing in the Dry Forest of Costa Rica

2006 ◽  
Vol 53 (6) ◽  
pp. 522-530 ◽  
Author(s):  
LINDA A. AMARAL-ZETTLER ◽  
JEFFREY COLE ◽  
ABBY D. LAATSCH ◽  
THOMAS A. NERAD ◽  
O. ROGER ANDERSON ◽  
...  
Keyword(s):  
Costa Rica ◽  
Leaf Surface ◽  
Dry Forest ◽  
Spondias Mombin

scholarly journals Chelonicola and Poulinea, two new gomphonemoid diatom genera (Bacillariophyta) living on marine turtles from Costa Rica

Phytotaxa ◽  
2015 ◽  
Vol 233 (3) ◽  
pp. 236 ◽  
Author(s):  
Roksana Majewska ◽  
J. P. Kociolek ◽  
Evan W. Thomas ◽  
Mario De Stefano ◽  
Mario Santoro ◽  
...  
Keyword(s):  
Costa Rica ◽  
Marine Mammals ◽  
Sea Turtles ◽  
Sea Turtle ◽  
New Genera ◽  
Olive Ridley ◽  
Lepidochelys Olivacea ◽  
Marine Turtles ◽  
The Family ◽  
Long Time

Marine mammals such as whales and dolphins have been known for a long time to host a very specific epizoic community on their skin. Less known however is the presence of a similar community on the carapaces of sea turtles. The present study is the first describing new taxa inhabiting sea turtle carapaces. Samples, collected from nesting olive ridley sea turtles (Lepidochelys olivacea) on Ostional Beach (Costa Rica), were studied using light and scanning electron microscopy. Two unknown small-celled gomphonemoid taxa were analysed in more detail and are described as two new genera, closely related to other gomphonemoid genera with septate girdle bands, such as Tripterion, Cuneolus and Gomphoseptatum. Chelonicola Majewska, De Stefano & Van de Vijver gen. nov. has a flat valve face, uniseriate striae composed of more than three areolae, simple external raphe endings, internally a siliceous flap over the proximal raphe endings and lives on mucilaginous stalks. Poulinea Majewska, De Stefano & Van de Vijver gen. nov. has at least one concave valve, uniseriate striae composed of only two elongated areolae, external distal raphe endings covered by thickened siliceous flaps and lives attached to the substrate by a mucilaginous pad. Chelonicola costaricensis Majewska, De Stefano & Van de Vijver sp. nov. and Poulinea lepidochelicola Majewska, De Stefano & Van de Vijver sp. nov. can be separated based on stria structure, girdle structure composed of more than 10 copulae, raphe structure and general valve outline. A cladistics analysis of putative members of the Rhoicospheniaceae indicates that the family is polyphyletic. Chelonicola and Poulinea are sister taxa, and form a monophyletic group with Cuneolus and Tripterion, but are not closely related to Rhoicosphenia, or other genera previously assigned to this family. Features used to help diagnose the family such as symmetry and presence of septa and pseudosepta are homoplastic across the raphid diatom tree of life.

Local community perceptions of sea turtle egg use in Tortuguero, Costa Rica

2020 ◽  
pp. 105423
Author(s):  
Carmen Mejías-Balsalobre ◽  
Jaime Restrepo ◽  
Gilberto Borges ◽  
Raúl García ◽  
Daniela Rojas-Cañizales ◽  
...  
Keyword(s):  
Costa Rica ◽  
Local Community ◽  
Sea Turtle ◽  
Community Perceptions

Comparison of macroinvertebrate communities of intermittent and perennial streams in the dry forest of Guanacaste, Costa Rica

Ecohydrology ◽  
2015 ◽  
Vol 9 (4) ◽  
pp. 659-672 ◽  
Author(s):  
Suzanne M. de Szoeke ◽  
Thomas L. Crisman ◽  
Paul E. Thurman
Keyword(s):  
Costa Rica ◽  
Dry Forest ◽  
Macroinvertebrate Communities

scholarly journals Sea turtles support sustainable livelihoods at Ostional, Costa Rica

Oryx ◽  
2018 ◽  
Vol 53 (1) ◽  
pp. 81-91 ◽  
Author(s):  
Mallika Sardeshpande ◽  
Douglas MacMillan
Keyword(s):  
Costa Rica ◽  
Local Community ◽  
Sustainable Livelihoods ◽  
Household Survey ◽  
Sea Turtle ◽  
Environmental Conservation ◽  
Current Status ◽  
Structured Interviews ◽  
Olive Ridley ◽  
Nesting Site

AbstractOstional in Costa Rica is the second largest nesting site of the olive ridley sea turtle Lepidochelys olivacea, which is categorized as Vulnerable on the IUCN Red List. In Ostional the local community helps maintain the nesting site and collects olive ridley eggs for consumption and trade within Costa Rica. Since its inception in 1987 the egg harvesting project has integrated sea turtle conservation with community development. We assessed the current status of this project in terms of community awareness, dependency, involvement and perceptions, using a household survey and semi-structured interviews with key informants. We also compared some of our findings with those of previous studies at the site, finding that the project has fewer dependents, primary livelihood activities have shifted towards tourism and hospitality, and respondents are more aware about environmental conservation and stewardship. We map outcomes of the project with the Sustainable Livelihoods Framework, and suggest that further capacity building for research and tourism could contribute towards sustaining the turtle population, local livelihoods, and the community-based conservation institution.

Seasonal use of waterholes and pathways by macrofauna in the dry forest of Costa Rica

2019 ◽  
Vol 35 (2) ◽  
pp. 68-73 ◽  
Author(s):  
Victor H. Montalvo ◽  
Carolina Sáenz-Bolaños ◽  
Luis D. Alfaro ◽  
Juan C. Cruz ◽  
Flavio H. Guimarães-Rodrigues ◽  
...  
Keyword(s):  
Costa Rica ◽  
Linear Models ◽  
Bird Species ◽  
Dry Forest ◽  
Ecological Understanding ◽  
Large Bird ◽  
Temporal And Spatial ◽  
Trail Cameras ◽  
Almost All ◽  
North Western

AbstractTemporal and spatial scarcity of water in semi-arid and seasonal ecosystems often leads to changes in movements and behaviour of large vertebrates, and in the neotropics this dynamic is poorly understood due to logistical and methodological limitations. Here we used camera trapping to elucidate variation in patterns of seasonal use of waterholes and pathways by 10 large-mammal and four large-bird species in the dry forest of north-western Costa Rica. From 2011 to 2015, we deployed trail cameras at 50 locations, including waterholes and three types of pathway (roads, human trails and animal paths). We used Generalized Linear Models to evaluate the effect of location and seasonality on the rates at which independent photographs were taken. We found interacting effects of location and seasonality for the capuchin monkey (Cebus capucinus), the tiger heron (Trigrisoma mexicanum), the white-tailed deer (Odocoileus virginianus) and the tapir (Tapirus bairdii) suggesting that these species were the most influenced by waterholes during the dry season. Comparison of waterhole sites and specific types of pathways (roads, animal paths and human trails) showed that location influenced photo-capture rates of almost all species, suggesting a useful insight to avoid and account for bias in camera trap studies. Furthering our ecological understanding of seasonal water regimes and large vertebrates’ behaviours allow for better understanding of the consequences of climate change on them.

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