Monos de Costa Rica - Organization for Tropical Studies
... Especializadas OET, la cual fue elaborada en virtud de que numerosos biólogos y antropólogos han dedicado muchos años en el estudio de estos primates en Costa Rica. Creímos conveniente reunir la literatura dispersa, para que sea usada como una herramienta de referencia en sus investigaciones y publi ...
... Especializadas OET, la cual fue elaborada en virtud de que numerosos biólogos y antropólogos han dedicado muchos años en el estudio de estos primates en Costa Rica. Creímos conveniente reunir la literatura dispersa, para que sea usada como una herramienta de referencia en sus investigaciones y publi ...
giraffa vol 5(1) front page2 - Giraffe Conservation Foundation
... The iconic giraffe (Giraffa camelopardalis) is the national animal of Tanzania and a highly visible indicator of the health of savanna ecosystems. Despite the world-‐wide popularity of giraffe, little is ...
... The iconic giraffe (Giraffa camelopardalis) is the national animal of Tanzania and a highly visible indicator of the health of savanna ecosystems. Despite the world-‐wide popularity of giraffe, little is ...
Why do thick-tailed geckos (Underwoodisaurus milii)
... This research project could not have happened without the incredible encouragement and enthusiasm shown by Mike Kearney, who helped initiate this study and pointed me in the direction of the ‘Magic Mountain’. Mike was always excited and ready to discuss various possibilities and make suggestions, ev ...
... This research project could not have happened without the incredible encouragement and enthusiasm shown by Mike Kearney, who helped initiate this study and pointed me in the direction of the ‘Magic Mountain’. Mike was always excited and ready to discuss various possibilities and make suggestions, ev ...
Information - Cheetah Outreach
... Four out of 5 members of coalitions are brothers, with the remainder unrelated males that have joined groups. * Male groups are larger where prey is more abundant, due to the higher survival rate of cubs. * Within coalitions no one male tends to predominate in initiating social activity or hunts and ...
... Four out of 5 members of coalitions are brothers, with the remainder unrelated males that have joined groups. * Male groups are larger where prey is more abundant, due to the higher survival rate of cubs. * Within coalitions no one male tends to predominate in initiating social activity or hunts and ...
Mammalian Species 47(926):84–99
... per se, but the feet have a slight webbing at the base of the phalanges between toes 2 to 5 that may extend as far as the middle of phalanx 2 (Schultz 1942). The metacarpus and metatarsus are long, both absolutely and relative to the digits (Figs. 1 and 4), and these features no doubt give support w ...
... per se, but the feet have a slight webbing at the base of the phalanges between toes 2 to 5 that may extend as far as the middle of phalanx 2 (Schultz 1942). The metacarpus and metatarsus are long, both absolutely and relative to the digits (Figs. 1 and 4), and these features no doubt give support w ...
Nasalis larvatus
... per se, but the feet have a slight webbing at the base of the phalanges between toes 2 to 5 that may extend as far as the middle of phalanx 2 (Schultz 1942). The metacarpus and metatarsus are long, both absolutely and relative to the digits (Figs. 1 and 4), and these features no doubt give support w ...
... per se, but the feet have a slight webbing at the base of the phalanges between toes 2 to 5 that may extend as far as the middle of phalanx 2 (Schultz 1942). The metacarpus and metatarsus are long, both absolutely and relative to the digits (Figs. 1 and 4), and these features no doubt give support w ...
A review of the biology of Gambusia affinis and G. holbrooki
... and abundant species, Gambusia affinis and G. holbrooki are clearly very tolerant, adaptable and variable in ...
... and abundant species, Gambusia affinis and G. holbrooki are clearly very tolerant, adaptable and variable in ...
Biological Control of Mosquito Vectors: Past, Present, and
... upon the eggs of Ae. aegypti. It has been shown that this mosquito species has a preference to lay eggs in tadpole water and that tadpoles of Polypedates cruciger, as well as those of the Bufo, Ramanella, Euphlyctis, and Hoplobatrachus genera, predate on the eggs [31]. Other studies, however, have s ...
... upon the eggs of Ae. aegypti. It has been shown that this mosquito species has a preference to lay eggs in tadpole water and that tadpoles of Polypedates cruciger, as well as those of the Bufo, Ramanella, Euphlyctis, and Hoplobatrachus genera, predate on the eggs [31]. Other studies, however, have s ...
Movement patterns of Eurasian lynx (Lynx lynx) around
... Large predators have been persecuted by humans during the 19th and early 20th centuries (Bunnefeld et al. 2006) due to livestock depredation or competition for game species (Breitenmoser 1998). Consequently, the lynx (Lynx lynx) population was almost extinct from southern, central and western Europe ...
... Large predators have been persecuted by humans during the 19th and early 20th centuries (Bunnefeld et al. 2006) due to livestock depredation or competition for game species (Breitenmoser 1998). Consequently, the lynx (Lynx lynx) population was almost extinct from southern, central and western Europe ...
Kangaroo Introduction
... selecting greener, moister vegetation that has a relatively low nitrogen content. Due to the fact that kangaroos eat moist vegetation, they only need to drink once a week. This is adequate for their nutritional needs because kangaroos need a lot less water than other animals such as livestock. (Daws ...
... selecting greener, moister vegetation that has a relatively low nitrogen content. Due to the fact that kangaroos eat moist vegetation, they only need to drink once a week. This is adequate for their nutritional needs because kangaroos need a lot less water than other animals such as livestock. (Daws ...
South American Coati Nasua nasua
... shows that he adds no fitness to the group and provide no parental care. The band is made up usually of family members but some unrelated members are found too, after mating has finished the adult females will go off solitarily and build nests that they will stay in for 4 months while they rear thei ...
... shows that he adds no fitness to the group and provide no parental care. The band is made up usually of family members but some unrelated members are found too, after mating has finished the adult females will go off solitarily and build nests that they will stay in for 4 months while they rear thei ...
Abstract Book (, ~2 MB in size)
... Most fishes perform stereotyped fast-start responses to escape predation when threatened, and a fish's ability to perform these responses can directly affect survival. As a result, individuals should be able to maximize fast-start performance even under physiologically limiting conditions such as hy ...
... Most fishes perform stereotyped fast-start responses to escape predation when threatened, and a fish's ability to perform these responses can directly affect survival. As a result, individuals should be able to maximize fast-start performance even under physiologically limiting conditions such as hy ...
Parent and Infant Attachment in Mammals
... age, etc. Proximity alone is not sufficient to indicate attachment. The difficulties of using proximity measures for determining attachments of freely moving animals to individuals, objects, and areas has already been discussed by Wickler (1976; see also Hinde, 1977). Separation. The effects of sepa ...
... age, etc. Proximity alone is not sufficient to indicate attachment. The difficulties of using proximity measures for determining attachments of freely moving animals to individuals, objects, and areas has already been discussed by Wickler (1976; see also Hinde, 1977). Separation. The effects of sepa ...
Predator-Prey Relationships and Spatial Ecology of Jaguars in the
... Institutional Animal Care and Use Committees (IACUC) at the National Wildlife Research Center and Utah State University. I would like to thank Maurício Talebi, who shared the excitement of starting a new project and all it entails, from long conversations about “perfect” techniques, equipment, and s ...
... Institutional Animal Care and Use Committees (IACUC) at the National Wildlife Research Center and Utah State University. I would like to thank Maurício Talebi, who shared the excitement of starting a new project and all it entails, from long conversations about “perfect” techniques, equipment, and s ...
Cockroaches : Ecology, Behavior, and Natural History
... I came too close, it fluttered away on gaily colored wings like a butterfly. My general blattarian education was advanced when I traveled with Lou Roth to Costa Rica in 1959, and further over the decades we shared at Harvard’s Museum of Comparative Zoology, as he worked as a taxonomist through the g ...
... I came too close, it fluttered away on gaily colored wings like a butterfly. My general blattarian education was advanced when I traveled with Lou Roth to Costa Rica in 1959, and further over the decades we shared at Harvard’s Museum of Comparative Zoology, as he worked as a taxonomist through the g ...
Influence of phenotypic and social traits on dispersal in a family
... to identify every breeding individual (2008–2009). I attached radiotransmitters to a subset of birds prior to dispersal (n = 24, of which 13 were radiotracked when floating). Floating is when an individual wanders within other breeding pairs’ territories in search of a vacancy (Smith 1978). Radio s ...
... to identify every breeding individual (2008–2009). I attached radiotransmitters to a subset of birds prior to dispersal (n = 24, of which 13 were radiotracked when floating). Floating is when an individual wanders within other breeding pairs’ territories in search of a vacancy (Smith 1978). Radio s ...
TRANSLOCATION OF THE COPPERHEAD
... Translocation is the movement of organisms from one location and release in a different location (IUCN, 1987; Griffith, et al., 1989; Reinert, 1999; Germano and Bishop, 2009). It is a popular yet controversial strategy for the management of animal populations and has been used with mammals, birds, r ...
... Translocation is the movement of organisms from one location and release in a different location (IUCN, 1987; Griffith, et al., 1989; Reinert, 1999; Germano and Bishop, 2009). It is a popular yet controversial strategy for the management of animal populations and has been used with mammals, birds, r ...
Full text
... 1999). In turn, the aggregation of fledgling parasites was beneficial because it resulted in increased provisioning by host parents (Soler et al. 1995). Adult cowbirds in many populations are site faithful throughout much of the breeding season, with female cowbirds showing > 50% exclusive spatial u ...
... 1999). In turn, the aggregation of fledgling parasites was beneficial because it resulted in increased provisioning by host parents (Soler et al. 1995). Adult cowbirds in many populations are site faithful throughout much of the breeding season, with female cowbirds showing > 50% exclusive spatial u ...
Interspecific interactions between Atlantic spotted dolphins
... species, mixed species encounters were (1) longer in duration and (2) larger in group size. Mixed species encounters that were affiliative in nature were significantly shorter in duration and smaller in group size than aggressive encounters. The ratio of spotted dolphins to bottlenose dolphins was sig ...
... species, mixed species encounters were (1) longer in duration and (2) larger in group size. Mixed species encounters that were affiliative in nature were significantly shorter in duration and smaller in group size than aggressive encounters. The ratio of spotted dolphins to bottlenose dolphins was sig ...
How do generalist consumers coexist over evolutionary time? An
... For example, fixed differences in nutritional requirement ratios can enable evolutionarily stable coexistence of generalists with differing resource uptake. This coexistence scenario is somewhat restrictive, however, since it requires fixed differences in traits that govern fitness of the competitor ...
... For example, fixed differences in nutritional requirement ratios can enable evolutionarily stable coexistence of generalists with differing resource uptake. This coexistence scenario is somewhat restrictive, however, since it requires fixed differences in traits that govern fitness of the competitor ...
Anorexia Nervosa - Mental Health Academy
... (although, in the 1868 report, Gull conceded that anorexia nervosa could occur in males, but he had not seen any cases). The submissions from Gull (1868; 1874) that anorexia nervosa was a psycho-medicalised feminine phenomenon, formed the basis of the developing etiology of anorexia nervosa that was ...
... (although, in the 1868 report, Gull conceded that anorexia nervosa could occur in males, but he had not seen any cases). The submissions from Gull (1868; 1874) that anorexia nervosa was a psycho-medicalised feminine phenomenon, formed the basis of the developing etiology of anorexia nervosa that was ...
SCHOOL OF ANTS AUSTRALIA
... realised this would be my life for the next three years. It was the year 2000 and I was starting a PhD on Christmas Island in the Indian Ocean. I was there to work out what had triggered an extraordinary explosion in numbers of introduced yellow crazy ants. Since the mid-1990s more than 15 high dens ...
... realised this would be my life for the next three years. It was the year 2000 and I was starting a PhD on Christmas Island in the Indian Ocean. I was there to work out what had triggered an extraordinary explosion in numbers of introduced yellow crazy ants. Since the mid-1990s more than 15 high dens ...
Ecology and Evolution of Poeciliid Fishes
... de León, chapter 10). Fisher et al. (2006) provided experimental evidence that Xiphophorus birchmanni females preferred conspecific males in clean water but mated indiscriminately (X. birchmanni females and X. malinche males) in water polluted with agricultural runoff. This appeared to be mediated by ...
... de León, chapter 10). Fisher et al. (2006) provided experimental evidence that Xiphophorus birchmanni females preferred conspecific males in clean water but mated indiscriminately (X. birchmanni females and X. malinche males) in water polluted with agricultural runoff. This appeared to be mediated by ...
Cooperation
... Evolutionarily stable strategies A individual’s success may depend on what others are doing Evolutionarily stable strategy (ESS): the optimal strategy for an individual to follow when the rewards (payoffs) depend on what others are doing When adopted by most members of a population, this st ...
... Evolutionarily stable strategies A individual’s success may depend on what others are doing Evolutionarily stable strategy (ESS): the optimal strategy for an individual to follow when the rewards (payoffs) depend on what others are doing When adopted by most members of a population, this st ...
Behavioral ecology
Behavioral ecology is the study of the evolutionary basis for animal behavior due to ecological pressures. Behavioral ecology emerged from ethology after Niko Tinbergen outlined four questions to address when studying animal behavior which are the proximate causes, ontogeny, survival value, and phylogeny of behavior.If an organism has a trait which provides them with a selective advantage (i.e. has an adaptive significance) in a new environment natural selection will likely favor it. This was originally proposed as the theory of natural selection by Charles Darwin. Adaptive significance therefore refers to the beneficial qualities, in terms of increased survival and reproduction, a trait conveys. Genetic differences in individuals lead to behavioral differences that in turn drive differences in adaptation, reproductive success, and ultimately evolution.Individuals are always in competition with others for limited resources, including food, territories, and mates. Conflict will occur between predators and prey, between rivals for mates, between siblings, mates, and even between parents and their offspring.